You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@cassandra.apache.org by "YheonHo.Choi (JIRA)" <ji...@apache.org> on 2016/12/14 03:31:58 UTC

[jira] [Updated] (CASSANDRA-13042) The two cassandra nodes suddenly encounter hints each other and failed replaying.

     [ https://issues.apache.org/jira/browse/CASSANDRA-13042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

YheonHo.Choi updated CASSANDRA-13042:
-------------------------------------
    Description: 
Although there are no changes to cassandra, two node suddenly encounter hints and failed replaying.
Any commands like disablethrift, disablegossip can not solve the above problem and the only way was restart.
When we check the status of cluster, all nodes are looks UN but describecluster show unreachable each other.
Here's the state of the cassandra during the above problem occurred.

IP addresses in report anonymized:
cassandra version: 2.2.5
node 1 = 1.1.1.1
node 2 = 1.1.1.2
others = x.x.x.x

system.log
{code}
## result of nodetool status on 1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:15:07,969 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:15:09,969 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [HintedHandoff:2] 2016-11-24 06:25:09,736 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:2] 2016-11-24 06:25:11,738 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:55270] 2016-11-24 06:25:12,625 BigTableWriter.java:184 - Writing large partition system/hints:d640677d-f354-aa8c-be89-d2a1648c24b2 (109029803 bytes)
WARN  [CompactionExecutor:37908] 2016-11-24 06:35:23,682 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (250651758 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:35:23,727 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:35:25,728 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:37909] 2016-11-24 06:45:53,615 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (340801514 bytes)
INFO  [HintedHandoff:2] 2016-11-24 06:45:53,718 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:2] 2016-11-24 06:45:55,719 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:37912] 2016-11-24 06:56:20,884 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (472465093 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:56:20,966 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:56:22,967 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:37911] 2016-11-24 07:07:12,568 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (577392172 bytes)
INFO  [HintedHandoff:2] 2016-11-24 07:07:12,643 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:2] 2016-11-24 07:07:14,643 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [IndexSummaryManager:1] 2016-11-24 07:09:15,929 IndexSummaryRedistribution.java:74 - Redistributing index summaries

## result of nodetool status on 1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:11:37,300 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:11:39,301 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [HintedHandoff:2] 2016-11-24 06:22:17,946 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:2] 2016-11-24 06:22:19,948 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [IndexSummaryManager:1] 2016-11-24 06:27:00,177 IndexSummaryRedistribution.java:74 - Redistributing index summaries
WARN  [CompactionExecutor:2315] 2016-11-24 06:32:28,159 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (121683824 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:32:28,338 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:32:30,340 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:8728] 2016-11-24 06:32:31,272 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (108691834 bytes)
WARN  [CompactionExecutor:2316] 2016-11-24 06:42:58,591 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (327308871 bytes)
INFO  [HintedHandoff:2] 2016-11-24 06:42:58,661 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:2] 2016-11-24 06:43:00,662 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:8739] 2016-11-24 06:52:42,921 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (105086190 bytes)
WARN  [CompactionExecutor:2316] 2016-11-24 06:53:43,722 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (449333141 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:53:43,769 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:53:45,770 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:2316] 2016-11-24 07:04:29,379 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (460781059 bytes)
INFO  [HintedHandoff:2] 2016-11-24 07:04:29,572 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:2] 2016-11-24 07:04:31,574 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:8749] 2016-11-24 07:04:32,553 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (117146652 bytes)
{code}

nodetool status
{code}
## result of nodetool status on 1.1.1.1
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address      Load       Tokens       Owns    Host ID                               Rack
UN  1.1.1.2  252.48 GB  256          ?       8caa54f3-7d67-40d6-b224-8c64a1d289be  rack1
UN  x.x.x.x   316.6 GB   256          ?       a08fbe58-779f-49f7-a0be-0a288d18c059  rack1
UN  x.x.x.x  240.92 GB  256          ?       d2cf2695-25b7-4aad-92ab-9a0b593df5fb  rack1
UN  x.x.x.x  242.68 GB  256          ?       a01d3304-5d8d-4ac9-935f-597ebf038e70  rack1
UN  x.x.x.x  326.76 GB  256          ?       b79124e9-394c-4400-a8e7-a0c94aec6878  rack1
UN  x.x.x.x   296.61 GB  256          ?       0ec779f9-3ee4-41a2-80b2-f27f25521964  rack1
UN  x.x.x.x  309.81 GB  256          ?       8e6417ec-e375-40a4-bb8d-3d99148846ff  rack1
UN  x.x.x.x  312.28 GB  256          ?       b39ee3e9-8f69-4f5c-8473-0e906c2301ca  rack1
UN  x.x.x.x   299.9 GB   256          ?       0ab413a9-5608-4d7b-97dc-6ed655e76dd0  rack1
UN  x.x.x.x  241.81 GB  256          ?       81d4608f-d1df-4f52-b104-5f1c7a3b4c96  rack1
UN  x.x.x.x  228.76 GB  256          ?       afc0ae8e-1126-426f-aa5b-0fce5578531c  rack1
UN  x.x.x.x   301.13 GB  256          ?       62323ea7-8d66-46fd-93e1-ff9bbf772c17  rack1
UN  x.x.x.x   307.39 GB  256          ?       7939c565-dc6e-43ad-b6ed-cfa3a19b20ab  rack1
UN  x.x.x.x  259.21 GB  256          ?       afcdc0a9-de5a-446d-868e-ee1dabfc0107  rack1
UN  x.x.x.x   294.16 GB  256          ?       5582b905-7136-4e87-b1a9-d450ea2eb304  rack1
UN  x.x.x.x   285.28 GB  256          ?       6dabba2e-085d-497b-a97e-b6ebf65258d6  rack1
UN  x.x.x.x   305.59 GB  256          ?       10b51458-800b-46f2-a80a-c2f2bbe1e46d  rack1
UN  x.x.x.x   317.64 GB  256          ?       79a69fe9-de49-49d3-b8cb-fbc59e08a821  rack1
UN  x.x.x.x   303.85 GB  256          ?       71db8e6a-cdbb-4924-860c-34e40731719f  rack1
Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless

## result of nodetool status on 1.1.1.2
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address      Load       Tokens       Owns    Host ID                               Rack
UN  x.x.x.x  252.48 GB  256          ?       8caa54f3-7d67-40d6-b224-8c64a1d289be  rack1
UN  x.x.x.x   316.6 GB   256          ?       a08fbe58-779f-49f7-a0be-0a288d18c059  rack1
UN  x.x.x.x  240.92 GB  256          ?       d2cf2695-25b7-4aad-92ab-9a0b593df5fb  rack1
UN  x.x.x.x  242.68 GB  256          ?       a01d3304-5d8d-4ac9-935f-597ebf038e70  rack1
UN  1.1.1.1  326.76 GB  256          ?       b79124e9-394c-4400-a8e7-a0c94aec6878  rack1
UN  x.x.x.x   296.61 GB  256          ?       0ec779f9-3ee4-41a2-80b2-f27f25521964  rack1
UN  x.x.x.x  309.81 GB  256          ?       8e6417ec-e375-40a4-bb8d-3d99148846ff  rack1
UN  x.x.x.x  312.28 GB  256          ?       b39ee3e9-8f69-4f5c-8473-0e906c2301ca  rack1
UN  x.x.x.x   299.9 GB   256          ?       0ab413a9-5608-4d7b-97dc-6ed655e76dd0  rack1
UN  x.x.x.x  241.81 GB  256          ?       81d4608f-d1df-4f52-b104-5f1c7a3b4c96  rack1
UN  x.x.x.x  228.76 GB  256          ?       afc0ae8e-1126-426f-aa5b-0fce5578531c  rack1
UN  x.x.x.x   301.13 GB  256          ?       62323ea7-8d66-46fd-93e1-ff9bbf772c17  rack1
UN  x.x.x.x   307.39 GB  256          ?       7939c565-dc6e-43ad-b6ed-cfa3a19b20ab  rack1
UN  x.x.x.x  259.21 GB  256          ?       afcdc0a9-de5a-446d-868e-ee1dabfc0107  rack1
UN  x.x.x.x   294.16 GB  256          ?       5582b905-7136-4e87-b1a9-d450ea2eb304  rack1
UN  x.x.x.x   285.28 GB  256          ?       6dabba2e-085d-497b-a97e-b6ebf65258d6  rack1
UN  x.x.x.x   305.59 GB  256          ?       10b51458-800b-46f2-a80a-c2f2bbe1e46d  rack1
UN  x.x.x.x   317.64 GB  256          ?       79a69fe9-de49-49d3-b8cb-fbc59e08a821  rack1
UN  x.x.x.x   303.85 GB  256          ?       71db8e6a-cdbb-4924-860c-34e40731719f  rack1

Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless
{code}

nodetool describecluster
{code}
## result of nodetool describecluster on 1.1.1.1
Cluster Information:
        Name: metric
        Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
        Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
        Schema versions:
                c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9: [x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x]

                UNREACHABLE: [1.1.1.2]

## result of nodetool describecluster on 1.1.1.2
Cluster Information:
        Name: metric
        Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
        Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
        Schema versions:
                c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9: [x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x]

                UNREACHABLE: [1.1.1.1]
{code}

We've looked at whether schema is different.

nodetool gossipinfo
{code}
## result of nodetool gossipinfo on 1.1.1.1
/x.x.x.x
  generation:1464511828
  heartbeat:46798705
  STATUS:14:NORMAL,-1022166408914492069
  LOAD:46798599:3.40042922062E11
  SCHEMA:37196731:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46798704:0.0
  NET_VERSION:1:9
  HOST_ID:2:a08fbe58-779f-49f7-a0be-0a288d18c059
  RPC_READY:44:true
  TOKENS:13:<hidden>
/1.1.1.1
  generation:1471493280
  heartbeat:25624228
  STATUS:25498:NORMAL,-1023351769271276256
  LOAD:25624146:3.51052126949E11
  SCHEMA:16021810:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.1
  SEVERITY:25624230:0.0
  NET_VERSION:1:9
  HOST_ID:2:b79124e9-394c-4400-a8e7-a0c94aec6878
  RPC_READY:25524:true
  TOKENS:25497:<hidden>
/x.x.x.x
  generation:1467205802
  heartbeat:38628440
  STATUS:14:NORMAL,-1124164164231176551
  LOAD:38628359:3.06404316564E11
  SCHEMA:29026044:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38628439:0.0
  NET_VERSION:1:9
  HOST_ID:2:6dabba2e-085d-497b-a97e-b6ebf65258d6
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479090215
  heartbeat:2581923
  STATUS:16:NORMAL,-1034930499164644146
  LOAD:2581842:2.60571265374E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2581922:0.0
  NET_VERSION:1:9
  HOST_ID:2:a01d3304-5d8d-4ac9-935f-597ebf038e70
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089630
  heartbeat:2583693
  STATUS:16:NORMAL,-1104754836621297034
  LOAD:2583656:2.59767873976E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2583692:0.0
  NET_VERSION:1:9
  HOST_ID:2:81d4608f-d1df-4f52-b104-5f1c7a3b4c96
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1471482865
  heartbeat:25655714
  STATUS:28484:NORMAL,-1005894856009564957
  LOAD:25655674:3.35493584628E11
  SCHEMA:16053376:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:25655716:0.0
  NET_VERSION:1:9
  HOST_ID:2:b39ee3e9-8f69-4f5c-8473-0e906c2301ca
  RPC_READY:28512:true
  TOKENS:28483:<hidden>
/1.1.1.2
  generation:1479090411
  heartbeat:2581314
  STATUS:14:NORMAL,-1016248794247274800
  LOAD:2581277:2.71127001342E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.2
  SEVERITY:2581313:0.0
  NET_VERSION:1:9
  HOST_ID:2:8caa54f3-7d67-40d6-b224-8c64a1d289be
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465163903
  heartbeat:44821598
  STATUS:14:NORMAL,-1077736070944113862
  LOAD:44821597:3.26381003723E11
  SCHEMA:35219220:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44821595:0.0
  NET_VERSION:1:9
  HOST_ID:2:71db8e6a-cdbb-4924-860c-34e40731719f
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467203191
  heartbeat:38636328
  STATUS:14:NORMAL,-100689147463310850
  LOAD:38636153:3.15710669743E11
  SCHEMA:29033962:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38636327:0.0
  NET_VERSION:1:9
  HOST_ID:2:5582b905-7136-4e87-b1a9-d450ea2eb304
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465206313
  heartbeat:44692819
  STATUS:16:NORMAL,-101785227522144798
  LOAD:44692800:3.18542273643E11
  SCHEMA:35090498:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44692818:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ec779f9-3ee4-41a2-80b2-f27f25521964
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201538
  heartbeat:38641336
  STATUS:16:NORMAL,-1004145257859511465
  LOAD:38641252:3.22115490439E11
  SCHEMA:29038976:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38641338:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ab413a9-5608-4d7b-97dc-6ed655e76dd0
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201918
  heartbeat:38640043
  STATUS:16:NORMAL,-1068518488491269501
  LOAD:38640012:3.30172166769E11
  SCHEMA:29037717:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38640045:0.0
  NET_VERSION:1:9
  HOST_ID:2:7939c565-dc6e-43ad-b6ed-cfa3a19b20ab
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089944
  heartbeat:2582739
  STATUS:14:NORMAL,-109330739329126024
  LOAD:2582564:2.58856479776E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2582738:0.0
  NET_VERSION:1:9
  HOST_ID:2:d2cf2695-25b7-4aad-92ab-9a0b593df5fb
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1474550583
  heartbeat:16351053
  STATUS:14:NORMAL,-1012946818076902491
  LOAD:16350923:3.32929676598E11
  SCHEMA:6748586:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:16351052:0.042265426367521286
  NET_VERSION:1:9
  HOST_ID:2:8e6417ec-e375-40a4-bb8d-3d99148846ff
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464678970
  heartbeat:46292266
  STATUS:14:NORMAL,-100392380890457765
  LOAD:46292236:3.23397923906E11
  SCHEMA:36689950:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46292265:0.0
  NET_VERSION:1:9
  HOST_ID:2:62323ea7-8d66-46fd-93e1-ff9bbf772c17
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467202117
  heartbeat:38639452
  STATUS:16:NORMAL,-1023597752726656847
  LOAD:38639304:3.28121029924E11
  SCHEMA:29037141:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38639451:0.0
  NET_VERSION:1:9
  HOST_ID:2:10b51458-800b-46f2-a80a-c2f2bbe1e46d
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479087904
  heartbeat:2588919
  STATUS:14:NORMAL,-1013592683752719902
  LOAD:2588748:2.78416391781E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2588918:0.0
  NET_VERSION:1:9
  HOST_ID:2:afcdc0a9-de5a-446d-868e-ee1dabfc0107
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464513989
  heartbeat:46792633
  STATUS:14:NORMAL,-1063467021041506926
  LOAD:46792498:3.41276898418E11
  SCHEMA:37190355:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46792632:0.0
  NET_VERSION:1:9
  HOST_ID:2:79a69fe9-de49-49d3-b8cb-fbc59e08a821
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479088908
  heartbeat:2585894
  STATUS:14:NORMAL,-1060190437871147906
  LOAD:2585849:2.45716342224E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2585893:0.0
  NET_VERSION:1:9
  HOST_ID:2:afc0ae8e-1126-426f-aa5b-0fce5578531c
  RPC_READY:44:true
  TOKENS:13:<hidden>

## result of nodetool gossipinfo on 1.1.1.2
/x.x.x.x
  generation:1464511828
  heartbeat:46798699
  STATUS:14:NORMAL,-1022166408914492069
  LOAD:46798599:3.40042922062E11
  SCHEMA:37196731:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46798698:0.0
  NET_VERSION:1:9
  HOST_ID:2:a08fbe58-779f-49f7-a0be-0a288d18c059
  RPC_READY:44:true
  TOKENS:13:<hidden>
/1.1.1.1
  generation:1471493280
  heartbeat:25624222
  STATUS:25498:NORMAL,-1023351769271276256
  LOAD:25624146:3.51052126949E11
  SCHEMA:16021810:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.1
  SEVERITY:25624221:0.0
  NET_VERSION:1:9
  HOST_ID:2:b79124e9-394c-4400-a8e7-a0c94aec6878
  RPC_READY:25524:true
  TOKENS:25497:<hidden>
/x.x.x.x
  generation:1467205802
  heartbeat:38628440
  STATUS:14:NORMAL,-1124164164231176551
  LOAD:38628359:3.06404316564E11
  SCHEMA:29026044:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38628439:0.0
  NET_VERSION:1:9
  HOST_ID:2:6dabba2e-085d-497b-a97e-b6ebf65258d6
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479090215
  heartbeat:2581923
  STATUS:16:NORMAL,-1034930499164644146
  LOAD:2581842:2.60571265374E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2581922:0.0
  NET_VERSION:1:9
  HOST_ID:2:a01d3304-5d8d-4ac9-935f-597ebf038e70
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089630
  heartbeat:2583690
  STATUS:16:NORMAL,-1104754836621297034
  LOAD:2583656:2.59767873976E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2583689:0.0
  NET_VERSION:1:9
  HOST_ID:2:81d4608f-d1df-4f52-b104-5f1c7a3b4c96
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1471482865
  heartbeat:25655708
  STATUS:28484:NORMAL,-1005894856009564957
  LOAD:25655674:3.35493584628E11
  SCHEMA:16053376:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:25655707:0.0
  NET_VERSION:1:9
  HOST_ID:2:b39ee3e9-8f69-4f5c-8473-0e906c2301ca
  RPC_READY:28512:true
  TOKENS:28483:<hidden>
/1.1.1.2
  generation:1479090411
  heartbeat:2581314
  STATUS:14:NORMAL,-1016248794247274800
  LOAD:2581277:2.71127001342E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.2
  SEVERITY:2581316:0.0
  NET_VERSION:1:9
  HOST_ID:2:8caa54f3-7d67-40d6-b224-8c64a1d289be
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465163903
  heartbeat:44821587
  STATUS:14:NORMAL,-1077736070944113862
  LOAD:44821415:3.26343988237E11
  SCHEMA:35219220:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44821586:0.0
  NET_VERSION:1:9
  HOST_ID:2:71db8e6a-cdbb-4924-860c-34e40731719f
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467203191
  heartbeat:38636325
  STATUS:14:NORMAL,-100689147463310850
  LOAD:38636153:3.15710669743E11
  SCHEMA:29033962:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38636327:0.0
  NET_VERSION:1:9
  HOST_ID:2:5582b905-7136-4e87-b1a9-d450ea2eb304
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465206313
  heartbeat:44692816
  STATUS:16:NORMAL,-101785227522144798
  LOAD:44692800:3.18542273643E11
  SCHEMA:35090498:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44692815:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ec779f9-3ee4-41a2-80b2-f27f25521964
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201538
  heartbeat:38641336
  STATUS:16:NORMAL,-1004145257859511465
  LOAD:38641252:3.22115490439E11
  SCHEMA:29038976:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38641338:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ab413a9-5608-4d7b-97dc-6ed655e76dd0
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201918
  heartbeat:38640040
  STATUS:16:NORMAL,-1068518488491269501
  LOAD:38640012:3.30172166769E11
  SCHEMA:29037717:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38640039:0.0
  NET_VERSION:1:9
  HOST_ID:2:7939c565-dc6e-43ad-b6ed-cfa3a19b20ab
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089944
  heartbeat:2582733
  STATUS:14:NORMAL,-109330739329126024
  LOAD:2582564:2.58856479776E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2582732:0.042265426367521286
  NET_VERSION:1:9
  HOST_ID:2:d2cf2695-25b7-4aad-92ab-9a0b593df5fb
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1474550583
  heartbeat:16351050
  STATUS:14:NORMAL,-1012946818076902491
  LOAD:16350923:3.32929676598E11
  SCHEMA:6748586:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:16351049:0.0
  NET_VERSION:1:9
  HOST_ID:2:8e6417ec-e375-40a4-bb8d-3d99148846ff
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464678970
  heartbeat:46292263
  STATUS:14:NORMAL,-100392380890457765
  LOAD:46292236:3.23397923906E11
  SCHEMA:36689950:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46292265:0.0
  NET_VERSION:1:9
  HOST_ID:2:62323ea7-8d66-46fd-93e1-ff9bbf772c17
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467202117
  heartbeat:38639449
  STATUS:16:NORMAL,-1023597752726656847
  LOAD:38639304:3.28121029924E11
  SCHEMA:29037141:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38639451:0.0
  NET_VERSION:1:9
  HOST_ID:2:10b51458-800b-46f2-a80a-c2f2bbe1e46d
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479087904
  heartbeat:2588919
  STATUS:14:NORMAL,-1013592683752719902
  LOAD:2588748:2.78416391781E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2588918:0.0
  NET_VERSION:1:9
  HOST_ID:2:afcdc0a9-de5a-446d-868e-ee1dabfc0107
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464513989
  heartbeat:46792633
  STATUS:14:NORMAL,-1063467021041506926
  LOAD:46792498:3.41276898418E11
  SCHEMA:37190355:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46792632:0.0
  NET_VERSION:1:9
  HOST_ID:2:79a69fe9-de49-49d3-b8cb-fbc59e08a821
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479088908
  heartbeat:2585891
  STATUS:14:NORMAL,-1060190437871147906
  LOAD:2585849:2.45716342224E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2585890:0.0
  NET_VERSION:1:9
  HOST_ID:2:afc0ae8e-1126-426f-aa5b-0fce5578531c
  RPC_READY:44:true
  TOKENS:13:<hidden>
{code}

One thing we think of as weird is that 'messeage pending' and 'MUTATION drop'

nodetool netstats
{code}
## result of nodetool netstats on 1.1.1.1
Mode: NORMAL
Not sending any streams.
Read Repair Statistics:
Attempted: 0
Mismatch (Blocking): 0
Mismatch (Background): 0
Pool Name                    Active   Pending      Completed
Large messages                  n/a         7              2
Small messages                  n/a         0   129707138163
Gossip messages                 n/a         0       27177898

## result of nodetool netstats on 1.1.1.2
Mode: NORMAL
Not sending any streams.
Read Repair Statistics:
Attempted: 0
Mismatch (Blocking): 0
Mismatch (Background): 3
Pool Name                    Active   Pending      Completed
Large messages                  n/a         0              0
Small messages                  n/a       484    19297343088
Gossip messages                 n/a         0        2782060
{code}

nodetool tpstats
{code}
## result of nodetool tpstats on 1.1.1.1
Pool Name                    Active   Pending      Completed   Blocked  All time blocked
Native-Transport-Requests         0         0    55687222731         0           4381472
ReadRepairStage                   0         0             70         0                 0
ReadStage                         0         0       39737862         0                 0
RequestResponseStage              1         0    65682103003         0                 0
CounterMutationStage              0         0              0         0                 0
MutationStage                     0         0   100679076772         0                 0
MemtablePostFlush                 0         0         215235         0                 0
GossipStage                       0         0       26510703         0                 0
MiscStage                         0         0              0         0                 0
PendingRangeCalculator            0         0             37         0                 0
AntiEntropyStage                  0         0              0         0                 0
CacheCleanupExecutor              0         0            184         0                 0
MigrationStage                    0         0             59         0                 0
HintedHandoff                     0         0             93         0                 0
ValidationExecutor                0         0              0         0                 0
MemtableFlushWriter               0         0          74239         0                 0
InternalResponseStage             0         0        3636382         0                 0
Sampler                           0         0              0         0                 0
MemtableReclaimMemory             0         0          74239         0                 0
CompactionExecutor                0         0        5694753         0                 0

Message type           Dropped
RANGE_SLICE                  0
READ_REPAIR                  0
PAGED_RANGE                  0
READ                     38268
MUTATION                615972
_TRACE                       0
REQUEST_RESPONSE             0
COUNTER_MUTATION             0

## result of nodetool tpstats on 1.1.1.2
Pool Name                    Active   Pending      Completed   Blocked  All time blocked
Native-Transport-Requests         0         0     5783148174         0            970194
ReadRepairStage                   0         0             23         0                 0
ReadStage                         0         0         227034         0                 0
RequestResponseStage              0         0     9656431051         0                 0
CounterMutationStage              0         0              0         0                 0
MutationStage                     0         1    14494593737         0                 0
MemtablePostFlush                 0         0          24720         0                 0
GossipStage                       0         0        2667784         0                 0
MiscStage                         0         0              0         0                 0
PendingRangeCalculator            0         0             26         0                 0
AntiEntropyStage                  0         0              0         0                 0
CacheCleanupExecutor              0         0              0         0                 0
MigrationStage                    0         0              0         0                 0
HintedHandoff                     0         0             29         0                 0
ValidationExecutor                0         0              0         0                 0
MemtableFlushWriter               0         0          10555         0                 0
InternalResponseStage             0         0        3425759         0                 0
Sampler                           0         0              0         0                 0
MemtableReclaimMemory             0         0          10555         0                 0
CompactionExecutor                2         3         551545         0                 0

Message type           Dropped
RANGE_SLICE                  0
READ_REPAIR                  0
PAGED_RANGE                  0
READ                         0
MUTATION                     0
_TRACE                       0
REQUEST_RESPONSE             0
COUNTER_MUTATION             0
{code}

We found a similar issue that was reported. (https://issues.apache.org/jira/browse/CASSANDRA-4740)
*But I think it caused by other reasons, due to problem was occurrence in recent months.*

{code}
## on 1.1.1.1
$ netstat -tn | grep 1.1.1.2
tcp        0      0 1.1.1.1:50103     1.1.1.2:7000     ESTABLISHED
tcp        0      0 1.1.1.1:7000      1.1.1.2:45946    ESTABLISHED
tcp        0      0 1.1.1.1:38178     1.1.1.2:7000     ESTABLISHED
tcp        0      0 1.1.1.1:7000      1.1.1.2:59958    ESTABLISHED

## on 1.1.1.2
$ netstat -tn | grep 1.1.1.2
tcp        0      0 1.1.1.2:7000     1.1.1.16:32973    ESTABLISHED
tcp        0      0 1.1.1.2:34929    1.1.1.16:7000     ESTABLISHED
tcp        0     50 1.1.1.2:59270    1.1.1.16:7000     ESTABLISHED
tcp        0      0 1.1.1.2:7000     1.1.1.1:50103     ESTABLISHED
tcp        0      0 1.1.1.2:45946    1.1.1.1:7000      ESTABLISHED
tcp        0      0 1.1.1.2:59958    1.1.1.1:7000      ESTABLISHED
tcp        0      0 1.1.1.2:7000     1.1.1.16:55680    ESTABLISHED
tcp        0      0 1.1.1.2:7000     1.1.1.1:38178     ESTABLISHED
{code}

jvm and kernel are same on every nodes
{code}
$ uname -a
Linux ip-10-211-195-229.ap-northeast-2.compute.internal 4.5.0-coreos-r1 #2 SMP Thu May 26 22:21:06 UTC 2016 x86_64 Linux
$ java -version
java version "1.8.0_102"
Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)
$ which java
/pang/program/jdk/bin/java
{code}


  was:
Although there are no changes to cassandra, two node suddenly encounter hints and failed replaying.
Any commands like disablethrift, disablegossip can not solve the above problem and the only way was restart.
When we check the status of cluster, all nodes are looks UN but describecluster show unreachable each other.
Here's the state of the cassandra during the above problem occurred.

IP addresses in report anonymized:
cassandra version: 2.2.5
node 1 = 1.1.1.1
node 2 = 1.1.1.2
others = x.x.x.x

system.log
{code}
## result of nodetool status on 1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:15:07,969 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:15:09,969 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [HintedHandoff:2] 2016-11-24 06:25:09,736 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:2] 2016-11-24 06:25:11,738 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:55270] 2016-11-24 06:25:12,625 BigTableWriter.java:184 - Writing large partition system/hints:d640677d-f354-aa8c-be89-d2a1648c24b2 (109029803 bytes)
WARN  [CompactionExecutor:37908] 2016-11-24 06:35:23,682 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (250651758 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:35:23,727 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:35:25,728 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:37909] 2016-11-24 06:45:53,615 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (340801514 bytes)
INFO  [HintedHandoff:2] 2016-11-24 06:45:53,718 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:2] 2016-11-24 06:45:55,719 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:37912] 2016-11-24 06:56:20,884 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (472465093 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:56:20,966 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:56:22,967 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:37911] 2016-11-24 07:07:12,568 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (577392172 bytes)
INFO  [HintedHandoff:2] 2016-11-24 07:07:12,643 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
INFO  [HintedHandoff:2] 2016-11-24 07:07:14,643 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [IndexSummaryManager:1] 2016-11-24 07:09:15,929 IndexSummaryRedistribution.java:74 - Redistributing index summaries

## result of nodetool status on 1.1.1.2
INFO  [HintedHandoff:1] 2016-11-24 06:11:37,300 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:11:39,301 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [HintedHandoff:2] 2016-11-24 06:22:17,946 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:2] 2016-11-24 06:22:19,948 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
INFO  [IndexSummaryManager:1] 2016-11-24 06:27:00,177 IndexSummaryRedistribution.java:74 - Redistributing index summaries
WARN  [CompactionExecutor:2315] 2016-11-24 06:32:28,159 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (121683824 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:32:28,338 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:32:30,340 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:8728] 2016-11-24 06:32:31,272 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (108691834 bytes)
WARN  [CompactionExecutor:2316] 2016-11-24 06:42:58,591 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (327308871 bytes)
INFO  [HintedHandoff:2] 2016-11-24 06:42:58,661 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:2] 2016-11-24 06:43:00,662 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:8739] 2016-11-24 06:52:42,921 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (105086190 bytes)
WARN  [CompactionExecutor:2316] 2016-11-24 06:53:43,722 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (449333141 bytes)
INFO  [HintedHandoff:1] 2016-11-24 06:53:43,769 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:1] 2016-11-24 06:53:45,770 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [CompactionExecutor:2316] 2016-11-24 07:04:29,379 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (460781059 bytes)
INFO  [HintedHandoff:2] 2016-11-24 07:04:29,572 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
INFO  [HintedHandoff:2] 2016-11-24 07:04:31,574 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
WARN  [MemtableFlushWriter:8749] 2016-11-24 07:04:32,553 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (117146652 bytes)
{code}

nodetool status
{code}
## result of nodetool status on 1.1.1.1
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address      Load       Tokens       Owns    Host ID                               Rack
UN  1.1.1.2  252.48 GB  256          ?       8caa54f3-7d67-40d6-b224-8c64a1d289be  rack1
UN  x.x.x.x   316.6 GB   256          ?       a08fbe58-779f-49f7-a0be-0a288d18c059  rack1
UN  x.x.x.x  240.92 GB  256          ?       d2cf2695-25b7-4aad-92ab-9a0b593df5fb  rack1
UN  x.x.x.x  242.68 GB  256          ?       a01d3304-5d8d-4ac9-935f-597ebf038e70  rack1
UN  x.x.x.x  326.76 GB  256          ?       b79124e9-394c-4400-a8e7-a0c94aec6878  rack1
UN  x.x.x.x   296.61 GB  256          ?       0ec779f9-3ee4-41a2-80b2-f27f25521964  rack1
UN  x.x.x.x  309.81 GB  256          ?       8e6417ec-e375-40a4-bb8d-3d99148846ff  rack1
UN  x.x.x.x  312.28 GB  256          ?       b39ee3e9-8f69-4f5c-8473-0e906c2301ca  rack1
UN  x.x.x.x   299.9 GB   256          ?       0ab413a9-5608-4d7b-97dc-6ed655e76dd0  rack1
UN  x.x.x.x  241.81 GB  256          ?       81d4608f-d1df-4f52-b104-5f1c7a3b4c96  rack1
UN  x.x.x.x  228.76 GB  256          ?       afc0ae8e-1126-426f-aa5b-0fce5578531c  rack1
UN  x.x.x.x   301.13 GB  256          ?       62323ea7-8d66-46fd-93e1-ff9bbf772c17  rack1
UN  x.x.x.x   307.39 GB  256          ?       7939c565-dc6e-43ad-b6ed-cfa3a19b20ab  rack1
UN  x.x.x.x  259.21 GB  256          ?       afcdc0a9-de5a-446d-868e-ee1dabfc0107  rack1
UN  x.x.x.x   294.16 GB  256          ?       5582b905-7136-4e87-b1a9-d450ea2eb304  rack1
UN  x.x.x.x   285.28 GB  256          ?       6dabba2e-085d-497b-a97e-b6ebf65258d6  rack1
UN  x.x.x.x   305.59 GB  256          ?       10b51458-800b-46f2-a80a-c2f2bbe1e46d  rack1
UN  x.x.x.x   317.64 GB  256          ?       79a69fe9-de49-49d3-b8cb-fbc59e08a821  rack1
UN  x.x.x.x   303.85 GB  256          ?       71db8e6a-cdbb-4924-860c-34e40731719f  rack1
Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless

## result of nodetool status on 1.1.1.2
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address      Load       Tokens       Owns    Host ID                               Rack
UN  x.x.x.x  252.48 GB  256          ?       8caa54f3-7d67-40d6-b224-8c64a1d289be  rack1
UN  x.x.x.x   316.6 GB   256          ?       a08fbe58-779f-49f7-a0be-0a288d18c059  rack1
UN  x.x.x.x  240.92 GB  256          ?       d2cf2695-25b7-4aad-92ab-9a0b593df5fb  rack1
UN  x.x.x.x  242.68 GB  256          ?       a01d3304-5d8d-4ac9-935f-597ebf038e70  rack1
UN  1.1.1.1  326.76 GB  256          ?       b79124e9-394c-4400-a8e7-a0c94aec6878  rack1
UN  x.x.x.x   296.61 GB  256          ?       0ec779f9-3ee4-41a2-80b2-f27f25521964  rack1
UN  x.x.x.x  309.81 GB  256          ?       8e6417ec-e375-40a4-bb8d-3d99148846ff  rack1
UN  x.x.x.x  312.28 GB  256          ?       b39ee3e9-8f69-4f5c-8473-0e906c2301ca  rack1
UN  x.x.x.x   299.9 GB   256          ?       0ab413a9-5608-4d7b-97dc-6ed655e76dd0  rack1
UN  x.x.x.x  241.81 GB  256          ?       81d4608f-d1df-4f52-b104-5f1c7a3b4c96  rack1
UN  x.x.x.x  228.76 GB  256          ?       afc0ae8e-1126-426f-aa5b-0fce5578531c  rack1
UN  x.x.x.x   301.13 GB  256          ?       62323ea7-8d66-46fd-93e1-ff9bbf772c17  rack1
UN  x.x.x.x   307.39 GB  256          ?       7939c565-dc6e-43ad-b6ed-cfa3a19b20ab  rack1
UN  x.x.x.x  259.21 GB  256          ?       afcdc0a9-de5a-446d-868e-ee1dabfc0107  rack1
UN  x.x.x.x   294.16 GB  256          ?       5582b905-7136-4e87-b1a9-d450ea2eb304  rack1
UN  x.x.x.x   285.28 GB  256          ?       6dabba2e-085d-497b-a97e-b6ebf65258d6  rack1
UN  x.x.x.x   305.59 GB  256          ?       10b51458-800b-46f2-a80a-c2f2bbe1e46d  rack1
UN  x.x.x.x   317.64 GB  256          ?       79a69fe9-de49-49d3-b8cb-fbc59e08a821  rack1
UN  x.x.x.x   303.85 GB  256          ?       71db8e6a-cdbb-4924-860c-34e40731719f  rack1

Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless
{code}

nodetool describecluster
{code}
## result of nodetool describecluster on 1.1.1.1
Cluster Information:
        Name: metric
        Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
        Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
        Schema versions:
                c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9: [x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x]

                UNREACHABLE: [1.1.1.2]

## result of nodetool describecluster on 1.1.1.2
Cluster Information:
        Name: metric
        Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
        Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
        Schema versions:
                c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9: [x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x]

                UNREACHABLE: [1.1.1.1]
{code}

We've looked at whether schema is different.

nodetool gossipinfo
{code}
## result of nodetool gossipinfo on 1.1.1.1
/x.x.x.x
  generation:1464511828
  heartbeat:46798705
  STATUS:14:NORMAL,-1022166408914492069
  LOAD:46798599:3.40042922062E11
  SCHEMA:37196731:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46798704:0.0
  NET_VERSION:1:9
  HOST_ID:2:a08fbe58-779f-49f7-a0be-0a288d18c059
  RPC_READY:44:true
  TOKENS:13:<hidden>
/1.1.1.1
  generation:1471493280
  heartbeat:25624228
  STATUS:25498:NORMAL,-1023351769271276256
  LOAD:25624146:3.51052126949E11
  SCHEMA:16021810:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.1
  SEVERITY:25624230:0.0
  NET_VERSION:1:9
  HOST_ID:2:b79124e9-394c-4400-a8e7-a0c94aec6878
  RPC_READY:25524:true
  TOKENS:25497:<hidden>
/x.x.x.x
  generation:1467205802
  heartbeat:38628440
  STATUS:14:NORMAL,-1124164164231176551
  LOAD:38628359:3.06404316564E11
  SCHEMA:29026044:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38628439:0.0
  NET_VERSION:1:9
  HOST_ID:2:6dabba2e-085d-497b-a97e-b6ebf65258d6
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479090215
  heartbeat:2581923
  STATUS:16:NORMAL,-1034930499164644146
  LOAD:2581842:2.60571265374E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2581922:0.0
  NET_VERSION:1:9
  HOST_ID:2:a01d3304-5d8d-4ac9-935f-597ebf038e70
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089630
  heartbeat:2583693
  STATUS:16:NORMAL,-1104754836621297034
  LOAD:2583656:2.59767873976E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2583692:0.0
  NET_VERSION:1:9
  HOST_ID:2:81d4608f-d1df-4f52-b104-5f1c7a3b4c96
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1471482865
  heartbeat:25655714
  STATUS:28484:NORMAL,-1005894856009564957
  LOAD:25655674:3.35493584628E11
  SCHEMA:16053376:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:25655716:0.0
  NET_VERSION:1:9
  HOST_ID:2:b39ee3e9-8f69-4f5c-8473-0e906c2301ca
  RPC_READY:28512:true
  TOKENS:28483:<hidden>
/1.1.1.2
  generation:1479090411
  heartbeat:2581314
  STATUS:14:NORMAL,-1016248794247274800
  LOAD:2581277:2.71127001342E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.2
  SEVERITY:2581313:0.0
  NET_VERSION:1:9
  HOST_ID:2:8caa54f3-7d67-40d6-b224-8c64a1d289be
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465163903
  heartbeat:44821598
  STATUS:14:NORMAL,-1077736070944113862
  LOAD:44821597:3.26381003723E11
  SCHEMA:35219220:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44821595:0.0
  NET_VERSION:1:9
  HOST_ID:2:71db8e6a-cdbb-4924-860c-34e40731719f
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467203191
  heartbeat:38636328
  STATUS:14:NORMAL,-100689147463310850
  LOAD:38636153:3.15710669743E11
  SCHEMA:29033962:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38636327:0.0
  NET_VERSION:1:9
  HOST_ID:2:5582b905-7136-4e87-b1a9-d450ea2eb304
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465206313
  heartbeat:44692819
  STATUS:16:NORMAL,-101785227522144798
  LOAD:44692800:3.18542273643E11
  SCHEMA:35090498:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44692818:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ec779f9-3ee4-41a2-80b2-f27f25521964
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201538
  heartbeat:38641336
  STATUS:16:NORMAL,-1004145257859511465
  LOAD:38641252:3.22115490439E11
  SCHEMA:29038976:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38641338:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ab413a9-5608-4d7b-97dc-6ed655e76dd0
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201918
  heartbeat:38640043
  STATUS:16:NORMAL,-1068518488491269501
  LOAD:38640012:3.30172166769E11
  SCHEMA:29037717:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38640045:0.0
  NET_VERSION:1:9
  HOST_ID:2:7939c565-dc6e-43ad-b6ed-cfa3a19b20ab
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089944
  heartbeat:2582739
  STATUS:14:NORMAL,-109330739329126024
  LOAD:2582564:2.58856479776E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2582738:0.0
  NET_VERSION:1:9
  HOST_ID:2:d2cf2695-25b7-4aad-92ab-9a0b593df5fb
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1474550583
  heartbeat:16351053
  STATUS:14:NORMAL,-1012946818076902491
  LOAD:16350923:3.32929676598E11
  SCHEMA:6748586:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:16351052:0.042265426367521286
  NET_VERSION:1:9
  HOST_ID:2:8e6417ec-e375-40a4-bb8d-3d99148846ff
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464678970
  heartbeat:46292266
  STATUS:14:NORMAL,-100392380890457765
  LOAD:46292236:3.23397923906E11
  SCHEMA:36689950:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46292265:0.0
  NET_VERSION:1:9
  HOST_ID:2:62323ea7-8d66-46fd-93e1-ff9bbf772c17
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467202117
  heartbeat:38639452
  STATUS:16:NORMAL,-1023597752726656847
  LOAD:38639304:3.28121029924E11
  SCHEMA:29037141:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38639451:0.0
  NET_VERSION:1:9
  HOST_ID:2:10b51458-800b-46f2-a80a-c2f2bbe1e46d
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479087904
  heartbeat:2588919
  STATUS:14:NORMAL,-1013592683752719902
  LOAD:2588748:2.78416391781E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2588918:0.0
  NET_VERSION:1:9
  HOST_ID:2:afcdc0a9-de5a-446d-868e-ee1dabfc0107
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464513989
  heartbeat:46792633
  STATUS:14:NORMAL,-1063467021041506926
  LOAD:46792498:3.41276898418E11
  SCHEMA:37190355:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46792632:0.0
  NET_VERSION:1:9
  HOST_ID:2:79a69fe9-de49-49d3-b8cb-fbc59e08a821
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479088908
  heartbeat:2585894
  STATUS:14:NORMAL,-1060190437871147906
  LOAD:2585849:2.45716342224E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2585893:0.0
  NET_VERSION:1:9
  HOST_ID:2:afc0ae8e-1126-426f-aa5b-0fce5578531c
  RPC_READY:44:true
  TOKENS:13:<hidden>

## result of nodetool gossipinfo on 1.1.1.2
/x.x.x.x
  generation:1464511828
  heartbeat:46798699
  STATUS:14:NORMAL,-1022166408914492069
  LOAD:46798599:3.40042922062E11
  SCHEMA:37196731:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46798698:0.0
  NET_VERSION:1:9
  HOST_ID:2:a08fbe58-779f-49f7-a0be-0a288d18c059
  RPC_READY:44:true
  TOKENS:13:<hidden>
/1.1.1.1
  generation:1471493280
  heartbeat:25624222
  STATUS:25498:NORMAL,-1023351769271276256
  LOAD:25624146:3.51052126949E11
  SCHEMA:16021810:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.1
  SEVERITY:25624221:0.0
  NET_VERSION:1:9
  HOST_ID:2:b79124e9-394c-4400-a8e7-a0c94aec6878
  RPC_READY:25524:true
  TOKENS:25497:<hidden>
/x.x.x.x
  generation:1467205802
  heartbeat:38628440
  STATUS:14:NORMAL,-1124164164231176551
  LOAD:38628359:3.06404316564E11
  SCHEMA:29026044:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38628439:0.0
  NET_VERSION:1:9
  HOST_ID:2:6dabba2e-085d-497b-a97e-b6ebf65258d6
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479090215
  heartbeat:2581923
  STATUS:16:NORMAL,-1034930499164644146
  LOAD:2581842:2.60571265374E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2581922:0.0
  NET_VERSION:1:9
  HOST_ID:2:a01d3304-5d8d-4ac9-935f-597ebf038e70
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089630
  heartbeat:2583690
  STATUS:16:NORMAL,-1104754836621297034
  LOAD:2583656:2.59767873976E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2583689:0.0
  NET_VERSION:1:9
  HOST_ID:2:81d4608f-d1df-4f52-b104-5f1c7a3b4c96
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1471482865
  heartbeat:25655708
  STATUS:28484:NORMAL,-1005894856009564957
  LOAD:25655674:3.35493584628E11
  SCHEMA:16053376:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:25655707:0.0
  NET_VERSION:1:9
  HOST_ID:2:b39ee3e9-8f69-4f5c-8473-0e906c2301ca
  RPC_READY:28512:true
  TOKENS:28483:<hidden>
/1.1.1.2
  generation:1479090411
  heartbeat:2581314
  STATUS:14:NORMAL,-1016248794247274800
  LOAD:2581277:2.71127001342E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:1.1.1.2
  SEVERITY:2581316:0.0
  NET_VERSION:1:9
  HOST_ID:2:8caa54f3-7d67-40d6-b224-8c64a1d289be
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465163903
  heartbeat:44821587
  STATUS:14:NORMAL,-1077736070944113862
  LOAD:44821415:3.26343988237E11
  SCHEMA:35219220:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44821586:0.0
  NET_VERSION:1:9
  HOST_ID:2:71db8e6a-cdbb-4924-860c-34e40731719f
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467203191
  heartbeat:38636325
  STATUS:14:NORMAL,-100689147463310850
  LOAD:38636153:3.15710669743E11
  SCHEMA:29033962:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38636327:0.0
  NET_VERSION:1:9
  HOST_ID:2:5582b905-7136-4e87-b1a9-d450ea2eb304
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1465206313
  heartbeat:44692816
  STATUS:16:NORMAL,-101785227522144798
  LOAD:44692800:3.18542273643E11
  SCHEMA:35090498:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:44692815:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ec779f9-3ee4-41a2-80b2-f27f25521964
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201538
  heartbeat:38641336
  STATUS:16:NORMAL,-1004145257859511465
  LOAD:38641252:3.22115490439E11
  SCHEMA:29038976:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38641338:0.0
  NET_VERSION:1:9
  HOST_ID:2:0ab413a9-5608-4d7b-97dc-6ed655e76dd0
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1467201918
  heartbeat:38640040
  STATUS:16:NORMAL,-1068518488491269501
  LOAD:38640012:3.30172166769E11
  SCHEMA:29037717:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38640039:0.0
  NET_VERSION:1:9
  HOST_ID:2:7939c565-dc6e-43ad-b6ed-cfa3a19b20ab
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479089944
  heartbeat:2582733
  STATUS:14:NORMAL,-109330739329126024
  LOAD:2582564:2.58856479776E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2582732:0.042265426367521286
  NET_VERSION:1:9
  HOST_ID:2:d2cf2695-25b7-4aad-92ab-9a0b593df5fb
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1474550583
  heartbeat:16351050
  STATUS:14:NORMAL,-1012946818076902491
  LOAD:16350923:3.32929676598E11
  SCHEMA:6748586:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:16351049:0.0
  NET_VERSION:1:9
  HOST_ID:2:8e6417ec-e375-40a4-bb8d-3d99148846ff
  RPC_READY:42:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464678970
  heartbeat:46292263
  STATUS:14:NORMAL,-100392380890457765
  LOAD:46292236:3.23397923906E11
  SCHEMA:36689950:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46292265:0.0
  NET_VERSION:1:9
  HOST_ID:2:62323ea7-8d66-46fd-93e1-ff9bbf772c17
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1467202117
  heartbeat:38639449
  STATUS:16:NORMAL,-1023597752726656847
  LOAD:38639304:3.28121029924E11
  SCHEMA:29037141:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:38639451:0.0
  NET_VERSION:1:9
  HOST_ID:2:10b51458-800b-46f2-a80a-c2f2bbe1e46d
  RPC_READY:44:true
  TOKENS:15:<hidden>
/x.x.x.x
  generation:1479087904
  heartbeat:2588919
  STATUS:14:NORMAL,-1013592683752719902
  LOAD:2588748:2.78416391781E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2588918:0.0
  NET_VERSION:1:9
  HOST_ID:2:afcdc0a9-de5a-446d-868e-ee1dabfc0107
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1464513989
  heartbeat:46792633
  STATUS:14:NORMAL,-1063467021041506926
  LOAD:46792498:3.41276898418E11
  SCHEMA:37190355:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:46792632:0.0
  NET_VERSION:1:9
  HOST_ID:2:79a69fe9-de49-49d3-b8cb-fbc59e08a821
  RPC_READY:44:true
  TOKENS:13:<hidden>
/x.x.x.x
  generation:1479088908
  heartbeat:2585891
  STATUS:14:NORMAL,-1060190437871147906
  LOAD:2585849:2.45716342224E11
  SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
  DC:6:datacenter1
  RACK:8:rack1
  RELEASE_VERSION:4:2.2.5
  RPC_ADDRESS:3:x.x.x.x
  SEVERITY:2585890:0.0
  NET_VERSION:1:9
  HOST_ID:2:afc0ae8e-1126-426f-aa5b-0fce5578531c
  RPC_READY:44:true
  TOKENS:13:<hidden>
{code}

One thing we think of as weird is that 'messeage pending' and 'MUTATION drop'
{code}
## result of nodetool netstats on 1.1.1.1
Mode: NORMAL
Not sending any streams.
Read Repair Statistics:
Attempted: 0
Mismatch (Blocking): 0
Mismatch (Background): 0
Pool Name                    Active   Pending      Completed
Large messages                  n/a         7              2
Small messages                  n/a         0   129707138163
Gossip messages                 n/a         0       27177898

## result of nodetool netstats on 1.1.1.2
Mode: NORMAL
Not sending any streams.
Read Repair Statistics:
Attempted: 0
Mismatch (Blocking): 0
Mismatch (Background): 3
Pool Name                    Active   Pending      Completed
Large messages                  n/a         0              0
Small messages                  n/a       484    19297343088
Gossip messages                 n/a         0        2782060
{code}

{code}
## result of nodetool tpstats on 1.1.1.1
Pool Name                    Active   Pending      Completed   Blocked  All time blocked
Native-Transport-Requests         0         0    55687222731         0           4381472
ReadRepairStage                   0         0             70         0                 0
ReadStage                         0         0       39737862         0                 0
RequestResponseStage              1         0    65682103003         0                 0
CounterMutationStage              0         0              0         0                 0
MutationStage                     0         0   100679076772         0                 0
MemtablePostFlush                 0         0         215235         0                 0
GossipStage                       0         0       26510703         0                 0
MiscStage                         0         0              0         0                 0
PendingRangeCalculator            0         0             37         0                 0
AntiEntropyStage                  0         0              0         0                 0
CacheCleanupExecutor              0         0            184         0                 0
MigrationStage                    0         0             59         0                 0
HintedHandoff                     0         0             93         0                 0
ValidationExecutor                0         0              0         0                 0
MemtableFlushWriter               0         0          74239         0                 0
InternalResponseStage             0         0        3636382         0                 0
Sampler                           0         0              0         0                 0
MemtableReclaimMemory             0         0          74239         0                 0
CompactionExecutor                0         0        5694753         0                 0

Message type           Dropped
RANGE_SLICE                  0
READ_REPAIR                  0
PAGED_RANGE                  0
READ                     38268
MUTATION                615972
_TRACE                       0
REQUEST_RESPONSE             0
COUNTER_MUTATION             0

## result of nodetool tpstats on 1.1.1.2
Pool Name                    Active   Pending      Completed   Blocked  All time blocked
Native-Transport-Requests         0         0     5783148174         0            970194
ReadRepairStage                   0         0             23         0                 0
ReadStage                         0         0         227034         0                 0
RequestResponseStage              0         0     9656431051         0                 0
CounterMutationStage              0         0              0         0                 0
MutationStage                     0         1    14494593737         0                 0
MemtablePostFlush                 0         0          24720         0                 0
GossipStage                       0         0        2667784         0                 0
MiscStage                         0         0              0         0                 0
PendingRangeCalculator            0         0             26         0                 0
AntiEntropyStage                  0         0              0         0                 0
CacheCleanupExecutor              0         0              0         0                 0
MigrationStage                    0         0              0         0                 0
HintedHandoff                     0         0             29         0                 0
ValidationExecutor                0         0              0         0                 0
MemtableFlushWriter               0         0          10555         0                 0
InternalResponseStage             0         0        3425759         0                 0
Sampler                           0         0              0         0                 0
MemtableReclaimMemory             0         0          10555         0                 0
CompactionExecutor                2         3         551545         0                 0

Message type           Dropped
RANGE_SLICE                  0
READ_REPAIR                  0
PAGED_RANGE                  0
READ                         0
MUTATION                     0
_TRACE                       0
REQUEST_RESPONSE             0
COUNTER_MUTATION             0
{code}

We found a similar issue that was reported. (https://issues.apache.org/jira/browse/CASSANDRA-4740)
*But I think it caused by other reasons, due to problem was occurrence in recent months.*

{code}
## result of netstat on 1.1.1.1
$ netstat -tn | grep 1.1.1.2
tcp        0      0 1.1.1.1:50103     1.1.1.2:7000     ESTABLISHED
tcp        0      0 1.1.1.1:7000      1.1.1.2:45946    ESTABLISHED
tcp        0      0 1.1.1.1:38178     1.1.1.2:7000     ESTABLISHED
tcp        0      0 1.1.1.1:7000      1.1.1.2:59958    ESTABLISHED

$ netstat -tn | grep 1.1.1.2
tcp        0      0 1.1.1.2:7000     1.1.1.16:32973    ESTABLISHED
tcp        0      0 1.1.1.2:34929    1.1.1.16:7000     ESTABLISHED
tcp        0     50 1.1.1.2:59270    1.1.1.16:7000     ESTABLISHED
tcp        0      0 1.1.1.2:7000     1.1.1.1:50103     ESTABLISHED
tcp        0      0 1.1.1.2:45946    1.1.1.1:7000      ESTABLISHED
tcp        0      0 1.1.1.2:59958    1.1.1.1:7000      ESTABLISHED
tcp        0      0 1.1.1.2:7000     1.1.1.16:55680    ESTABLISHED
tcp        0      0 1.1.1.2:7000     1.1.1.1:38178     ESTABLISHED
{code}

{code}
$ uname -a
Linux ip-10-211-195-229.ap-northeast-2.compute.internal 4.5.0-coreos-r1 #2 SMP Thu May 26 22:21:06 UTC 2016 x86_64 Linux
$ java -version
java version "1.8.0_102"
Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)
$ which java
/pang/program/jdk/bin/java
{code}



> The two cassandra nodes suddenly encounter hints each other and failed replaying.
> ---------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13042
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13042
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: YheonHo.Choi
>            Priority: Minor
>
> Although there are no changes to cassandra, two node suddenly encounter hints and failed replaying.
> Any commands like disablethrift, disablegossip can not solve the above problem and the only way was restart.
> When we check the status of cluster, all nodes are looks UN but describecluster show unreachable each other.
> Here's the state of the cassandra during the above problem occurred.
> IP addresses in report anonymized:
> cassandra version: 2.2.5
> node 1 = 1.1.1.1
> node 2 = 1.1.1.2
> others = x.x.x.x
> system.log
> {code}
> ## result of nodetool status on 1.1.1.1
> INFO  [HintedHandoff:1] 2016-11-24 06:15:07,969 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
> INFO  [HintedHandoff:1] 2016-11-24 06:15:09,969 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> INFO  [HintedHandoff:2] 2016-11-24 06:25:09,736 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
> INFO  [HintedHandoff:2] 2016-11-24 06:25:11,738 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [MemtableFlushWriter:55270] 2016-11-24 06:25:12,625 BigTableWriter.java:184 - Writing large partition system/hints:d640677d-f354-aa8c-be89-d2a1648c24b2 (109029803 bytes)
> WARN  [CompactionExecutor:37908] 2016-11-24 06:35:23,682 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (250651758 bytes)
> INFO  [HintedHandoff:1] 2016-11-24 06:35:23,727 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
> INFO  [HintedHandoff:1] 2016-11-24 06:35:25,728 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [CompactionExecutor:37909] 2016-11-24 06:45:53,615 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (340801514 bytes)
> INFO  [HintedHandoff:2] 2016-11-24 06:45:53,718 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
> INFO  [HintedHandoff:2] 2016-11-24 06:45:55,719 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [CompactionExecutor:37912] 2016-11-24 06:56:20,884 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (472465093 bytes)
> INFO  [HintedHandoff:1] 2016-11-24 06:56:20,966 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
> INFO  [HintedHandoff:1] 2016-11-24 06:56:22,967 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [CompactionExecutor:37911] 2016-11-24 07:07:12,568 BigTableWriter.java:184 - Writing large partition system/hints:8caa54f3-7d67-40d6-b224-8c64a1d289be (577392172 bytes)
> INFO  [HintedHandoff:2] 2016-11-24 07:07:12,643 HintedHandOffManager.java:367 - Started hinted handoff for host: 8caa54f3-7d67-40d6-b224-8c64a1d289be with IP: /1.1.1.2
> INFO  [HintedHandoff:2] 2016-11-24 07:07:14,643 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.2; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> INFO  [IndexSummaryManager:1] 2016-11-24 07:09:15,929 IndexSummaryRedistribution.java:74 - Redistributing index summaries
> ## result of nodetool status on 1.1.1.2
> INFO  [HintedHandoff:1] 2016-11-24 06:11:37,300 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
> INFO  [HintedHandoff:1] 2016-11-24 06:11:39,301 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> INFO  [HintedHandoff:2] 2016-11-24 06:22:17,946 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
> INFO  [HintedHandoff:2] 2016-11-24 06:22:19,948 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> INFO  [IndexSummaryManager:1] 2016-11-24 06:27:00,177 IndexSummaryRedistribution.java:74 - Redistributing index summaries
> WARN  [CompactionExecutor:2315] 2016-11-24 06:32:28,159 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (121683824 bytes)
> INFO  [HintedHandoff:1] 2016-11-24 06:32:28,338 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
> INFO  [HintedHandoff:1] 2016-11-24 06:32:30,340 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [MemtableFlushWriter:8728] 2016-11-24 06:32:31,272 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (108691834 bytes)
> WARN  [CompactionExecutor:2316] 2016-11-24 06:42:58,591 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (327308871 bytes)
> INFO  [HintedHandoff:2] 2016-11-24 06:42:58,661 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
> INFO  [HintedHandoff:2] 2016-11-24 06:43:00,662 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [MemtableFlushWriter:8739] 2016-11-24 06:52:42,921 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (105086190 bytes)
> WARN  [CompactionExecutor:2316] 2016-11-24 06:53:43,722 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (449333141 bytes)
> INFO  [HintedHandoff:1] 2016-11-24 06:53:43,769 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
> INFO  [HintedHandoff:1] 2016-11-24 06:53:45,770 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [CompactionExecutor:2316] 2016-11-24 07:04:29,379 BigTableWriter.java:184 - Writing large partition system/hints:b79124e9-394c-4400-a8e7-a0c94aec6878 (460781059 bytes)
> INFO  [HintedHandoff:2] 2016-11-24 07:04:29,572 HintedHandOffManager.java:367 - Started hinted handoff for host: b79124e9-394c-4400-a8e7-a0c94aec6878 with IP: /1.1.1.1
> INFO  [HintedHandoff:2] 2016-11-24 07:04:31,574 HintedHandOffManager.java:486 - Failed replaying hints to /1.1.1.1; aborting (0 delivered), error : Operation timed out - received only 0 responses.
> WARN  [MemtableFlushWriter:8749] 2016-11-24 07:04:32,553 BigTableWriter.java:184 - Writing large partition system/hints:00444c39-e924-91b7-7868-ec4ac9a0e7a8 (117146652 bytes)
> {code}
> nodetool status
> {code}
> ## result of nodetool status on 1.1.1.1
> Datacenter: datacenter1
> =======================
> Status=Up/Down
> |/ State=Normal/Leaving/Joining/Moving
> --  Address      Load       Tokens       Owns    Host ID                               Rack
> UN  1.1.1.2  252.48 GB  256          ?       8caa54f3-7d67-40d6-b224-8c64a1d289be  rack1
> UN  x.x.x.x   316.6 GB   256          ?       a08fbe58-779f-49f7-a0be-0a288d18c059  rack1
> UN  x.x.x.x  240.92 GB  256          ?       d2cf2695-25b7-4aad-92ab-9a0b593df5fb  rack1
> UN  x.x.x.x  242.68 GB  256          ?       a01d3304-5d8d-4ac9-935f-597ebf038e70  rack1
> UN  x.x.x.x  326.76 GB  256          ?       b79124e9-394c-4400-a8e7-a0c94aec6878  rack1
> UN  x.x.x.x   296.61 GB  256          ?       0ec779f9-3ee4-41a2-80b2-f27f25521964  rack1
> UN  x.x.x.x  309.81 GB  256          ?       8e6417ec-e375-40a4-bb8d-3d99148846ff  rack1
> UN  x.x.x.x  312.28 GB  256          ?       b39ee3e9-8f69-4f5c-8473-0e906c2301ca  rack1
> UN  x.x.x.x   299.9 GB   256          ?       0ab413a9-5608-4d7b-97dc-6ed655e76dd0  rack1
> UN  x.x.x.x  241.81 GB  256          ?       81d4608f-d1df-4f52-b104-5f1c7a3b4c96  rack1
> UN  x.x.x.x  228.76 GB  256          ?       afc0ae8e-1126-426f-aa5b-0fce5578531c  rack1
> UN  x.x.x.x   301.13 GB  256          ?       62323ea7-8d66-46fd-93e1-ff9bbf772c17  rack1
> UN  x.x.x.x   307.39 GB  256          ?       7939c565-dc6e-43ad-b6ed-cfa3a19b20ab  rack1
> UN  x.x.x.x  259.21 GB  256          ?       afcdc0a9-de5a-446d-868e-ee1dabfc0107  rack1
> UN  x.x.x.x   294.16 GB  256          ?       5582b905-7136-4e87-b1a9-d450ea2eb304  rack1
> UN  x.x.x.x   285.28 GB  256          ?       6dabba2e-085d-497b-a97e-b6ebf65258d6  rack1
> UN  x.x.x.x   305.59 GB  256          ?       10b51458-800b-46f2-a80a-c2f2bbe1e46d  rack1
> UN  x.x.x.x   317.64 GB  256          ?       79a69fe9-de49-49d3-b8cb-fbc59e08a821  rack1
> UN  x.x.x.x   303.85 GB  256          ?       71db8e6a-cdbb-4924-860c-34e40731719f  rack1
> Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless
> ## result of nodetool status on 1.1.1.2
> Datacenter: datacenter1
> =======================
> Status=Up/Down
> |/ State=Normal/Leaving/Joining/Moving
> --  Address      Load       Tokens       Owns    Host ID                               Rack
> UN  x.x.x.x  252.48 GB  256          ?       8caa54f3-7d67-40d6-b224-8c64a1d289be  rack1
> UN  x.x.x.x   316.6 GB   256          ?       a08fbe58-779f-49f7-a0be-0a288d18c059  rack1
> UN  x.x.x.x  240.92 GB  256          ?       d2cf2695-25b7-4aad-92ab-9a0b593df5fb  rack1
> UN  x.x.x.x  242.68 GB  256          ?       a01d3304-5d8d-4ac9-935f-597ebf038e70  rack1
> UN  1.1.1.1  326.76 GB  256          ?       b79124e9-394c-4400-a8e7-a0c94aec6878  rack1
> UN  x.x.x.x   296.61 GB  256          ?       0ec779f9-3ee4-41a2-80b2-f27f25521964  rack1
> UN  x.x.x.x  309.81 GB  256          ?       8e6417ec-e375-40a4-bb8d-3d99148846ff  rack1
> UN  x.x.x.x  312.28 GB  256          ?       b39ee3e9-8f69-4f5c-8473-0e906c2301ca  rack1
> UN  x.x.x.x   299.9 GB   256          ?       0ab413a9-5608-4d7b-97dc-6ed655e76dd0  rack1
> UN  x.x.x.x  241.81 GB  256          ?       81d4608f-d1df-4f52-b104-5f1c7a3b4c96  rack1
> UN  x.x.x.x  228.76 GB  256          ?       afc0ae8e-1126-426f-aa5b-0fce5578531c  rack1
> UN  x.x.x.x   301.13 GB  256          ?       62323ea7-8d66-46fd-93e1-ff9bbf772c17  rack1
> UN  x.x.x.x   307.39 GB  256          ?       7939c565-dc6e-43ad-b6ed-cfa3a19b20ab  rack1
> UN  x.x.x.x  259.21 GB  256          ?       afcdc0a9-de5a-446d-868e-ee1dabfc0107  rack1
> UN  x.x.x.x   294.16 GB  256          ?       5582b905-7136-4e87-b1a9-d450ea2eb304  rack1
> UN  x.x.x.x   285.28 GB  256          ?       6dabba2e-085d-497b-a97e-b6ebf65258d6  rack1
> UN  x.x.x.x   305.59 GB  256          ?       10b51458-800b-46f2-a80a-c2f2bbe1e46d  rack1
> UN  x.x.x.x   317.64 GB  256          ?       79a69fe9-de49-49d3-b8cb-fbc59e08a821  rack1
> UN  x.x.x.x   303.85 GB  256          ?       71db8e6a-cdbb-4924-860c-34e40731719f  rack1
> Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless
> {code}
> nodetool describecluster
> {code}
> ## result of nodetool describecluster on 1.1.1.1
> Cluster Information:
>         Name: metric
>         Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
>         Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
>         Schema versions:
>                 c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9: [x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x]
>                 UNREACHABLE: [1.1.1.2]
> ## result of nodetool describecluster on 1.1.1.2
> Cluster Information:
>         Name: metric
>         Snitch: org.apache.cassandra.locator.DynamicEndpointSnitch
>         Partitioner: org.apache.cassandra.dht.Murmur3Partitioner
>         Schema versions:
>                 c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9: [x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x, x.x.x.x]
>                 UNREACHABLE: [1.1.1.1]
> {code}
> We've looked at whether schema is different.
> nodetool gossipinfo
> {code}
> ## result of nodetool gossipinfo on 1.1.1.1
> /x.x.x.x
>   generation:1464511828
>   heartbeat:46798705
>   STATUS:14:NORMAL,-1022166408914492069
>   LOAD:46798599:3.40042922062E11
>   SCHEMA:37196731:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:46798704:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:a08fbe58-779f-49f7-a0be-0a288d18c059
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /1.1.1.1
>   generation:1471493280
>   heartbeat:25624228
>   STATUS:25498:NORMAL,-1023351769271276256
>   LOAD:25624146:3.51052126949E11
>   SCHEMA:16021810:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:1.1.1.1
>   SEVERITY:25624230:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:b79124e9-394c-4400-a8e7-a0c94aec6878
>   RPC_READY:25524:true
>   TOKENS:25497:<hidden>
> /x.x.x.x
>   generation:1467205802
>   heartbeat:38628440
>   STATUS:14:NORMAL,-1124164164231176551
>   LOAD:38628359:3.06404316564E11
>   SCHEMA:29026044:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38628439:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:6dabba2e-085d-497b-a97e-b6ebf65258d6
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1479090215
>   heartbeat:2581923
>   STATUS:16:NORMAL,-1034930499164644146
>   LOAD:2581842:2.60571265374E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2581922:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:a01d3304-5d8d-4ac9-935f-597ebf038e70
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1479089630
>   heartbeat:2583693
>   STATUS:16:NORMAL,-1104754836621297034
>   LOAD:2583656:2.59767873976E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2583692:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:81d4608f-d1df-4f52-b104-5f1c7a3b4c96
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1471482865
>   heartbeat:25655714
>   STATUS:28484:NORMAL,-1005894856009564957
>   LOAD:25655674:3.35493584628E11
>   SCHEMA:16053376:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:25655716:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:b39ee3e9-8f69-4f5c-8473-0e906c2301ca
>   RPC_READY:28512:true
>   TOKENS:28483:<hidden>
> /1.1.1.2
>   generation:1479090411
>   heartbeat:2581314
>   STATUS:14:NORMAL,-1016248794247274800
>   LOAD:2581277:2.71127001342E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:1.1.1.2
>   SEVERITY:2581313:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:8caa54f3-7d67-40d6-b224-8c64a1d289be
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1465163903
>   heartbeat:44821598
>   STATUS:14:NORMAL,-1077736070944113862
>   LOAD:44821597:3.26381003723E11
>   SCHEMA:35219220:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:44821595:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:71db8e6a-cdbb-4924-860c-34e40731719f
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1467203191
>   heartbeat:38636328
>   STATUS:14:NORMAL,-100689147463310850
>   LOAD:38636153:3.15710669743E11
>   SCHEMA:29033962:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38636327:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:5582b905-7136-4e87-b1a9-d450ea2eb304
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1465206313
>   heartbeat:44692819
>   STATUS:16:NORMAL,-101785227522144798
>   LOAD:44692800:3.18542273643E11
>   SCHEMA:35090498:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:44692818:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:0ec779f9-3ee4-41a2-80b2-f27f25521964
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1467201538
>   heartbeat:38641336
>   STATUS:16:NORMAL,-1004145257859511465
>   LOAD:38641252:3.22115490439E11
>   SCHEMA:29038976:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38641338:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:0ab413a9-5608-4d7b-97dc-6ed655e76dd0
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1467201918
>   heartbeat:38640043
>   STATUS:16:NORMAL,-1068518488491269501
>   LOAD:38640012:3.30172166769E11
>   SCHEMA:29037717:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38640045:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:7939c565-dc6e-43ad-b6ed-cfa3a19b20ab
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1479089944
>   heartbeat:2582739
>   STATUS:14:NORMAL,-109330739329126024
>   LOAD:2582564:2.58856479776E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2582738:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:d2cf2695-25b7-4aad-92ab-9a0b593df5fb
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1474550583
>   heartbeat:16351053
>   STATUS:14:NORMAL,-1012946818076902491
>   LOAD:16350923:3.32929676598E11
>   SCHEMA:6748586:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:16351052:0.042265426367521286
>   NET_VERSION:1:9
>   HOST_ID:2:8e6417ec-e375-40a4-bb8d-3d99148846ff
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1464678970
>   heartbeat:46292266
>   STATUS:14:NORMAL,-100392380890457765
>   LOAD:46292236:3.23397923906E11
>   SCHEMA:36689950:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:46292265:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:62323ea7-8d66-46fd-93e1-ff9bbf772c17
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1467202117
>   heartbeat:38639452
>   STATUS:16:NORMAL,-1023597752726656847
>   LOAD:38639304:3.28121029924E11
>   SCHEMA:29037141:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38639451:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:10b51458-800b-46f2-a80a-c2f2bbe1e46d
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1479087904
>   heartbeat:2588919
>   STATUS:14:NORMAL,-1013592683752719902
>   LOAD:2588748:2.78416391781E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2588918:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:afcdc0a9-de5a-446d-868e-ee1dabfc0107
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1464513989
>   heartbeat:46792633
>   STATUS:14:NORMAL,-1063467021041506926
>   LOAD:46792498:3.41276898418E11
>   SCHEMA:37190355:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:46792632:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:79a69fe9-de49-49d3-b8cb-fbc59e08a821
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1479088908
>   heartbeat:2585894
>   STATUS:14:NORMAL,-1060190437871147906
>   LOAD:2585849:2.45716342224E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2585893:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:afc0ae8e-1126-426f-aa5b-0fce5578531c
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> ## result of nodetool gossipinfo on 1.1.1.2
> /x.x.x.x
>   generation:1464511828
>   heartbeat:46798699
>   STATUS:14:NORMAL,-1022166408914492069
>   LOAD:46798599:3.40042922062E11
>   SCHEMA:37196731:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:46798698:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:a08fbe58-779f-49f7-a0be-0a288d18c059
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /1.1.1.1
>   generation:1471493280
>   heartbeat:25624222
>   STATUS:25498:NORMAL,-1023351769271276256
>   LOAD:25624146:3.51052126949E11
>   SCHEMA:16021810:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:1.1.1.1
>   SEVERITY:25624221:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:b79124e9-394c-4400-a8e7-a0c94aec6878
>   RPC_READY:25524:true
>   TOKENS:25497:<hidden>
> /x.x.x.x
>   generation:1467205802
>   heartbeat:38628440
>   STATUS:14:NORMAL,-1124164164231176551
>   LOAD:38628359:3.06404316564E11
>   SCHEMA:29026044:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38628439:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:6dabba2e-085d-497b-a97e-b6ebf65258d6
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1479090215
>   heartbeat:2581923
>   STATUS:16:NORMAL,-1034930499164644146
>   LOAD:2581842:2.60571265374E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2581922:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:a01d3304-5d8d-4ac9-935f-597ebf038e70
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1479089630
>   heartbeat:2583690
>   STATUS:16:NORMAL,-1104754836621297034
>   LOAD:2583656:2.59767873976E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2583689:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:81d4608f-d1df-4f52-b104-5f1c7a3b4c96
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1471482865
>   heartbeat:25655708
>   STATUS:28484:NORMAL,-1005894856009564957
>   LOAD:25655674:3.35493584628E11
>   SCHEMA:16053376:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:25655707:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:b39ee3e9-8f69-4f5c-8473-0e906c2301ca
>   RPC_READY:28512:true
>   TOKENS:28483:<hidden>
> /1.1.1.2
>   generation:1479090411
>   heartbeat:2581314
>   STATUS:14:NORMAL,-1016248794247274800
>   LOAD:2581277:2.71127001342E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:1.1.1.2
>   SEVERITY:2581316:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:8caa54f3-7d67-40d6-b224-8c64a1d289be
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1465163903
>   heartbeat:44821587
>   STATUS:14:NORMAL,-1077736070944113862
>   LOAD:44821415:3.26343988237E11
>   SCHEMA:35219220:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:44821586:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:71db8e6a-cdbb-4924-860c-34e40731719f
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1467203191
>   heartbeat:38636325
>   STATUS:14:NORMAL,-100689147463310850
>   LOAD:38636153:3.15710669743E11
>   SCHEMA:29033962:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38636327:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:5582b905-7136-4e87-b1a9-d450ea2eb304
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1465206313
>   heartbeat:44692816
>   STATUS:16:NORMAL,-101785227522144798
>   LOAD:44692800:3.18542273643E11
>   SCHEMA:35090498:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:44692815:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:0ec779f9-3ee4-41a2-80b2-f27f25521964
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1467201538
>   heartbeat:38641336
>   STATUS:16:NORMAL,-1004145257859511465
>   LOAD:38641252:3.22115490439E11
>   SCHEMA:29038976:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38641338:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:0ab413a9-5608-4d7b-97dc-6ed655e76dd0
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1467201918
>   heartbeat:38640040
>   STATUS:16:NORMAL,-1068518488491269501
>   LOAD:38640012:3.30172166769E11
>   SCHEMA:29037717:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38640039:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:7939c565-dc6e-43ad-b6ed-cfa3a19b20ab
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1479089944
>   heartbeat:2582733
>   STATUS:14:NORMAL,-109330739329126024
>   LOAD:2582564:2.58856479776E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2582732:0.042265426367521286
>   NET_VERSION:1:9
>   HOST_ID:2:d2cf2695-25b7-4aad-92ab-9a0b593df5fb
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1474550583
>   heartbeat:16351050
>   STATUS:14:NORMAL,-1012946818076902491
>   LOAD:16350923:3.32929676598E11
>   SCHEMA:6748586:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:16351049:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:8e6417ec-e375-40a4-bb8d-3d99148846ff
>   RPC_READY:42:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1464678970
>   heartbeat:46292263
>   STATUS:14:NORMAL,-100392380890457765
>   LOAD:46292236:3.23397923906E11
>   SCHEMA:36689950:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:46292265:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:62323ea7-8d66-46fd-93e1-ff9bbf772c17
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1467202117
>   heartbeat:38639449
>   STATUS:16:NORMAL,-1023597752726656847
>   LOAD:38639304:3.28121029924E11
>   SCHEMA:29037141:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:38639451:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:10b51458-800b-46f2-a80a-c2f2bbe1e46d
>   RPC_READY:44:true
>   TOKENS:15:<hidden>
> /x.x.x.x
>   generation:1479087904
>   heartbeat:2588919
>   STATUS:14:NORMAL,-1013592683752719902
>   LOAD:2588748:2.78416391781E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2588918:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:afcdc0a9-de5a-446d-868e-ee1dabfc0107
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1464513989
>   heartbeat:46792633
>   STATUS:14:NORMAL,-1063467021041506926
>   LOAD:46792498:3.41276898418E11
>   SCHEMA:37190355:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:46792632:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:79a69fe9-de49-49d3-b8cb-fbc59e08a821
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> /x.x.x.x
>   generation:1479088908
>   heartbeat:2585891
>   STATUS:14:NORMAL,-1060190437871147906
>   LOAD:2585849:2.45716342224E11
>   SCHEMA:10:c777bf0c-72ca-3bad-ac52-b9ad1ecd23b9
>   DC:6:datacenter1
>   RACK:8:rack1
>   RELEASE_VERSION:4:2.2.5
>   RPC_ADDRESS:3:x.x.x.x
>   SEVERITY:2585890:0.0
>   NET_VERSION:1:9
>   HOST_ID:2:afc0ae8e-1126-426f-aa5b-0fce5578531c
>   RPC_READY:44:true
>   TOKENS:13:<hidden>
> {code}
> One thing we think of as weird is that 'messeage pending' and 'MUTATION drop'
> nodetool netstats
> {code}
> ## result of nodetool netstats on 1.1.1.1
> Mode: NORMAL
> Not sending any streams.
> Read Repair Statistics:
> Attempted: 0
> Mismatch (Blocking): 0
> Mismatch (Background): 0
> Pool Name                    Active   Pending      Completed
> Large messages                  n/a         7              2
> Small messages                  n/a         0   129707138163
> Gossip messages                 n/a         0       27177898
> ## result of nodetool netstats on 1.1.1.2
> Mode: NORMAL
> Not sending any streams.
> Read Repair Statistics:
> Attempted: 0
> Mismatch (Blocking): 0
> Mismatch (Background): 3
> Pool Name                    Active   Pending      Completed
> Large messages                  n/a         0              0
> Small messages                  n/a       484    19297343088
> Gossip messages                 n/a         0        2782060
> {code}
> nodetool tpstats
> {code}
> ## result of nodetool tpstats on 1.1.1.1
> Pool Name                    Active   Pending      Completed   Blocked  All time blocked
> Native-Transport-Requests         0         0    55687222731         0           4381472
> ReadRepairStage                   0         0             70         0                 0
> ReadStage                         0         0       39737862         0                 0
> RequestResponseStage              1         0    65682103003         0                 0
> CounterMutationStage              0         0              0         0                 0
> MutationStage                     0         0   100679076772         0                 0
> MemtablePostFlush                 0         0         215235         0                 0
> GossipStage                       0         0       26510703         0                 0
> MiscStage                         0         0              0         0                 0
> PendingRangeCalculator            0         0             37         0                 0
> AntiEntropyStage                  0         0              0         0                 0
> CacheCleanupExecutor              0         0            184         0                 0
> MigrationStage                    0         0             59         0                 0
> HintedHandoff                     0         0             93         0                 0
> ValidationExecutor                0         0              0         0                 0
> MemtableFlushWriter               0         0          74239         0                 0
> InternalResponseStage             0         0        3636382         0                 0
> Sampler                           0         0              0         0                 0
> MemtableReclaimMemory             0         0          74239         0                 0
> CompactionExecutor                0         0        5694753         0                 0
> Message type           Dropped
> RANGE_SLICE                  0
> READ_REPAIR                  0
> PAGED_RANGE                  0
> READ                     38268
> MUTATION                615972
> _TRACE                       0
> REQUEST_RESPONSE             0
> COUNTER_MUTATION             0
> ## result of nodetool tpstats on 1.1.1.2
> Pool Name                    Active   Pending      Completed   Blocked  All time blocked
> Native-Transport-Requests         0         0     5783148174         0            970194
> ReadRepairStage                   0         0             23         0                 0
> ReadStage                         0         0         227034         0                 0
> RequestResponseStage              0         0     9656431051         0                 0
> CounterMutationStage              0         0              0         0                 0
> MutationStage                     0         1    14494593737         0                 0
> MemtablePostFlush                 0         0          24720         0                 0
> GossipStage                       0         0        2667784         0                 0
> MiscStage                         0         0              0         0                 0
> PendingRangeCalculator            0         0             26         0                 0
> AntiEntropyStage                  0         0              0         0                 0
> CacheCleanupExecutor              0         0              0         0                 0
> MigrationStage                    0         0              0         0                 0
> HintedHandoff                     0         0             29         0                 0
> ValidationExecutor                0         0              0         0                 0
> MemtableFlushWriter               0         0          10555         0                 0
> InternalResponseStage             0         0        3425759         0                 0
> Sampler                           0         0              0         0                 0
> MemtableReclaimMemory             0         0          10555         0                 0
> CompactionExecutor                2         3         551545         0                 0
> Message type           Dropped
> RANGE_SLICE                  0
> READ_REPAIR                  0
> PAGED_RANGE                  0
> READ                         0
> MUTATION                     0
> _TRACE                       0
> REQUEST_RESPONSE             0
> COUNTER_MUTATION             0
> {code}
> We found a similar issue that was reported. (https://issues.apache.org/jira/browse/CASSANDRA-4740)
> *But I think it caused by other reasons, due to problem was occurrence in recent months.*
> {code}
> ## on 1.1.1.1
> $ netstat -tn | grep 1.1.1.2
> tcp        0      0 1.1.1.1:50103     1.1.1.2:7000     ESTABLISHED
> tcp        0      0 1.1.1.1:7000      1.1.1.2:45946    ESTABLISHED
> tcp        0      0 1.1.1.1:38178     1.1.1.2:7000     ESTABLISHED
> tcp        0      0 1.1.1.1:7000      1.1.1.2:59958    ESTABLISHED
> ## on 1.1.1.2
> $ netstat -tn | grep 1.1.1.2
> tcp        0      0 1.1.1.2:7000     1.1.1.16:32973    ESTABLISHED
> tcp        0      0 1.1.1.2:34929    1.1.1.16:7000     ESTABLISHED
> tcp        0     50 1.1.1.2:59270    1.1.1.16:7000     ESTABLISHED
> tcp        0      0 1.1.1.2:7000     1.1.1.1:50103     ESTABLISHED
> tcp        0      0 1.1.1.2:45946    1.1.1.1:7000      ESTABLISHED
> tcp        0      0 1.1.1.2:59958    1.1.1.1:7000      ESTABLISHED
> tcp        0      0 1.1.1.2:7000     1.1.1.16:55680    ESTABLISHED
> tcp        0      0 1.1.1.2:7000     1.1.1.1:38178     ESTABLISHED
> {code}
> jvm and kernel are same on every nodes
> {code}
> $ uname -a
> Linux ip-10-211-195-229.ap-northeast-2.compute.internal 4.5.0-coreos-r1 #2 SMP Thu May 26 22:21:06 UTC 2016 x86_64 Linux
> $ java -version
> java version "1.8.0_102"
> Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
> Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)
> $ which java
> /pang/program/jdk/bin/java
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)