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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2011/03/10 15:55:59 UTC
[jira] Updated: (CASSANDRA-1924) Broken keyspace strategy_option
with zero replicas
[ https://issues.apache.org/jira/browse/CASSANDRA-1924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-1924:
--------------------------------------
Affects Version/s: (was: 0.7.0 rc 3)
(was: 0.7.0 rc 2)
(was: 0.7.0 rc 1)
(was: 0.7 beta 2)
(was: 0.7 beta 3)
(was: 0.7 beta 1)
0.7.0
Fix Version/s: 0.7.4
Assignee: Sylvain Lebresne
> Broken keyspace strategy_option with zero replicas
> --------------------------------------------------
>
> Key: CASSANDRA-1924
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1924
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.0
> Reporter: Thor Carpenter
> Assignee: Sylvain Lebresne
> Priority: Minor
> Fix For: 0.7.4
>
>
> When a keyspace is defined that has strategy options specifying zero replicas should be place in a datacenter (e.g. DCX:0), an assert is violated for any insert and LOCAL_QUORUM reads fail. I'm not sure if the issue is that there are no nodes in DCX or that I'm saying DCX shouldn't get any replicas, or a combination of the two.
> The broken keyspace:
> create keyspace KeyspaceDC1 with
> replication_factor = 1 and
> placement_strategy = 'org.apache.cassandra.locator.NetworkTopologyStrategy' and
> strategy_options = [{DC1:1, DC2:0}];
> The fixed keyspace:
> create keyspace KeyspaceDC1 with
> replication_factor = 1 and
> placement_strategy = 'org.apache.cassandra.locator.NetworkTopologyStrategy' and
> strategy_options = [{DC1:1}];
> To reproduce:
> * Install the 0.7rc3 rpm on a single node in "DC1".
> * In cassandra.yaml set initial_token = 1 and specify PropertyFileSnitch.
> * cassandra-topology.properties:
> 10.5.64.26=DC1:R1
> default=DC2:R1
> * Schema loaded via cassandra-cli:
> create keyspace KeyspaceDC1 with
> replication_factor = 1 and
> placement_strategy = 'org.apache.cassandra.locator.NetworkTopologyStrategy' and
> strategy_options = [{DC1:1, DC2:0}];
> use KeyspaceDC1;
> create column family TestCF with
> column_type = 'Standard' and
> comparator = 'BytesType' and
> keys_cached = 200000 and
> rows_cached = 2000 and
> gc_grace = 0 and
> read_repair_chance = 0.0;
> * In cassandra-cli execute the following:
> [default@unknown] use KeyspaceDC1;
> Authenticated to keyspace: KeyspaceDC1
> [default@KeyspaceDC1] set TestCF['some key']['some col'] = 'some value';
> Internal error processing insert
> * If you have asserts enabled, check system.log where you should find the assertion error:
> DEBUG [pool-1-thread-3] 2010-12-29 12:10:38,897 CassandraServer.java (line 362) insert
> ERROR [pool-1-thread-3] 2010-12-29 12:10:38,906 Cassandra.java (line 2960) Internal error processing insert
> java.lang.AssertionError
> at org.apache.cassandra.locator.TokenMetadata.firstTokenIndex(TokenMetadata.java:392)
> at org.apache.cassandra.locator.TokenMetadata.ringIterator(TokenMetadata.java:417)
> at org.apache.cassandra.locator.NetworkTopologyStrategy.calculateNaturalEndpoints(NetworkTopologyStrategy.java:95)
> at org.apache.cassandra.locator.AbstractReplicationStrategy.getNaturalEndpoints(AbstractReplicationStrategy.java:99)
> at org.apache.cassandra.service.StorageService.getNaturalEndpoints(StorageService.java:1411)
> at org.apache.cassandra.service.StorageService.getNaturalEndpoints(StorageService.java:1394)
> at org.apache.cassandra.service.StorageProxy.mutate(StorageProxy.java:109)
> at org.apache.cassandra.thrift.CassandraServer.doInsert(CassandraServer.java:442)
> at org.apache.cassandra.thrift.CassandraServer.insert(CassandraServer.java:379)
> at org.apache.cassandra.thrift.Cassandra$Processor$insert.process(Cassandra.java:2952)
> at org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2555)
> at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:167)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
> * If you don't have asserts enabled, you should find that no errors are logged but LOCAL_QUORUM reads cause TimedOutExceptions on the client.
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