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Posted to commits@cassandra.apache.org by "Abdul Patel (JIRA)" <ji...@apache.org> on 2018/06/04 13:48:00 UTC
[jira] [Created] (CASSANDRA-14495) Memory Leak /High Memory usage
post 3.11.2 upgrade
Abdul Patel created CASSANDRA-14495:
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Summary: Memory Leak /High Memory usage post 3.11.2 upgrade
Key: CASSANDRA-14495
URL: https://issues.apache.org/jira/browse/CASSANDRA-14495
Project: Cassandra
Issue Type: Bug
Components: Metrics
Reporter: Abdul Patel
Hi All,
I recently upgraded my non prod cassandra cluster( 4 nodes single DC) from 3.10 to 3.11.2 version.
No issues reported apart from only nodetool info reporting 80% usage .
I intially had 16GB memory on each node, later i bumped up to 20GB, and rebooted all nodes.
Waited for an week and now again i have seen memory usage more than 80% , 16GB + .
this means some memory leaks are happening over the time.
Any one has faced such issue or do we have any workaround ? my 3.11.2 version upgrade rollout has been halted because of this bug.
===================================================================
ID : 65b64f5a-7fe6-4036-94c8-8da9c57718cc
Gossip active : true
Thrift active : true
Native Transport active: true
Load : 985.24 MiB
Generation No : 1526923117
Uptime (seconds) : 1097684
Heap Memory (MB) : 16875.64 / 20480.00
Off Heap Memory (MB) : 20.42
Data Center : DC7
Rack : rac1
Exceptions : 0
Key Cache : entries 3569, size 421.44 KiB, capacity 100 MiB, 7931933 hits, 8098632 requests, 0.979 recent hit rate, 14400 save period in seconds
Row Cache : entries 0, size 0 bytes, capacity 0 bytes, 0 hits, 0 requests, NaN recent hit rate, 0 save period in seconds
Counter Cache : entries 0, size 0 bytes, capacity 50 MiB, 0 hits, 0 requests, NaN recent hit rate, 7200 save period in seconds
Chunk Cache : entries 2361, size 147.56 MiB, capacity 3.97 GiB, 2412803 misses, 72594047 requests, 0.967 recent hit rate, NaN microseconds miss latency
Percent Repaired : 99.88086234106282%
Token : (invoke with -T/--tokens to see all 256 tokens)
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