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https://issues.apache.org/jira/browse/CASSANDRA-885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-885.
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Resolution: Fixed
committed
> OOM on Commit log Replay
> ------------------------
>
> Key: CASSANDRA-885
> URL: https://issues.apache.org/jira/browse/CASSANDRA-885
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.5
> Reporter: Paul Querna
> Assignee: Jonathan Ellis
> Fix For: 0.6
>
> Attachments: 885-v3.txt
>
>
> Running 0.5.
> We had a node reboot, and when it came back up, it was unable to replay the
> commit logs, it would OOM every time.
> We upped the max heap to 6 gigs, but it didn't help.
> I have a heap dump and have it opened in Eclipse MAT.
> Anything specific I should pull out?
> Class Name
> | Shallow Heap | Retained Heap | Percentage
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> | | |
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor @ 0x7fad06454f48
> | 112 | 2,604,583,312 | 84.35%
> |- java.util.concurrent.LinkedBlockingQueue @ 0x7fad06405b78
> | 80 | 2,604,579,864 | 84.35%
> |- java.util.HashSet @ 0x7fad071b2110
> | 24 | 2,952 | 0.00%
> |- java.lang.String @ 0x7fad071b3588
> org.apache.cassandra.concurrent:type=ROW-MUTATION-STAGE| 40 |
> 176 | 0.00%
> |- org.apache.cassandra.concurrent.NamedThreadFactory @ 0x7fad0714e998
> | 32 | 56 | 0.00%
> |- java.util.concurrent.locks.ReentrantLock$NonfairSync @ 0x7fad0722b570
> | 48 | 48 | 0.00%
> |- java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject @
> 0x7fad071b3560 | 40 | 40 | 0.00%
> |- java.util.concurrent.atomic.AtomicInteger @ 0x7fad071b20e0
> | 24 | 24 | 0.00%
> |- java.util.concurrent.locks.ReentrantLock @ 0x7fad071b20f8
> | 24 | 24 | 0.00%
> |- java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy @ 0x7fad071b2128
> | 16 | 16 | 0.00%
> '- Total: 9 entries
> | | |
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad063b3390
> | 104 | 95,871,520 | 3.10%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad063b3460
> | 104 | 82,056,536 | 2.66%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad063b3188
> | 104 | 72,894,176 | 2.36%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad06331798
> | 104 | 45,394,360 | 1.47%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad06331660
> | 104 | 33,895,560 | 1.10%
> java.lang.Thread @ 0x7fad060e2320 main Native Stack, Thread
> | 168 | 33,573,328 | 1.09%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad06287e50
> | 104 | 33,528,680 | 1.09%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad063b3530
> | 104 | 33,423,720 | 1.08%
> org.apache.cassandra.db.ColumnFamilyStore @ 0x7fad063b32c0
> | 104 | 20,221,624 | 0.65%
> org.apache.cassandra.db.Memtable @ 0x7fad06410120
> | 96 | 9,383,880 | 0.30%
> org.apache.cassandra.db.ColumnFamily @ 0x7fad33df3690
> | 80 | 1,190,016 | 0.04%
> org.apache.cassandra.io.SSTableReader @ 0x7fad0653a4a0
> | 72 | 587,008 | 0.02%
> org.apache.cassandra.io.SSTableReader @ 0x7fad06c41ef0
> | 72 | 543,552 | 0.02%
> org.apache.cassandra.io.SSTableReader @ 0x7fad06456450
> | 72 | 541,320 | 0.02%
> Total: 15 of 49,239 entries
> | | |
> ----------------------------------------------------------------------------------------------------------------------------------------
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