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From "Jeff Griffith (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10579) IndexOutOfBoundsException during memtable flushing at startup (with offheap_objects)
Date Tue, 27 Oct 2015 16:28:28 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14976664#comment-14976664
] 

Jeff Griffith commented on CASSANDRA-10579:
-------------------------------------------

Yes, we are seeing sstable corruption also which we scrub. Not 100% certain it results from
this index out of bounds problem though.

> IndexOutOfBoundsException during memtable flushing at startup (with offheap_objects)
> ------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-10579
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10579
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: 2.1.10 on linux
>            Reporter: Jeff Griffith
>            Assignee: Benedict
>             Fix For: 2.1.x
>
>
> Sometimes we have problems at startup where memtable flushes with an index out of bounds
exception as seen below. Cassandra is then dead in the water until we track down the corresponding
commit log via the segment ID and remove it:
> {code}
> INFO  [main] 2015-10-23 14:43:36,440 CommitLogReplayer.java:267 - Replaying /home/y/var/cassandra/commitlog/CommitLog-4-1445474832692.log
> INFO  [main] 2015-10-23 14:43:36,440 CommitLogReplayer.java:270 - Replaying /home/y/var/cassandra/commitlog/CommitLog-4-1445474832692.log
(CL version 4, messaging version 8)
> INFO  [main] 2015-10-23 14:43:36,594 CommitLogReplayer.java:478 - Finished reading /home/y/var/cassandra/commitlog/CommitLog-4-1445474832692.log
> INFO  [main] 2015-10-23 14:43:36,594 CommitLogReplayer.java:267 - Replaying /home/y/var/cassandra/commitlog/CommitLog-4-1445474832693.log
> INFO  [main] 2015-10-23 14:43:36,595 CommitLogReplayer.java:270 - Replaying /home/y/var/cassandra/commitlog/CommitLog-4-1445474832693.log
(CL version 4, messaging version 8)
> INFO  [main] 2015-10-23 14:43:36,699 CommitLogReplayer.java:478 - Finished reading /home/y/var/cassandra/commitlog/CommitLog-4-1445474832693.log
> INFO  [main] 2015-10-23 14:43:36,699 CommitLogReplayer.java:267 - Replaying /home/y/var/cassandra/commitlog/CommitLog-4-1445474832694.log
> INFO  [main] 2015-10-23 14:43:36,699 CommitLogReplayer.java:270 - Replaying /home/y/var/cassandra/commitlog/CommitLog-4-1445474832694.log
(CL version 4, messaging version 8)
> WARN  [SharedPool-Worker-5] 2015-10-23 14:43:36,747 AbstractTracingAwareExecutorService.java:169
- Uncaught exception on thread Thread[SharedPool-Worker-5,5,main]: {}
> java.lang.ArrayIndexOutOfBoundsException: 6
>         at org.apache.cassandra.db.AbstractNativeCell.nametype(AbstractNativeCell.java:204)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.AbstractNativeCell.isStatic(AbstractNativeCell.java:199)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.composites.AbstractCType.compare(AbstractCType.java:166)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.composites.AbstractCellNameType$1.compare(AbstractCellNameType.java:61)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.composites.AbstractCellNameType$1.compare(AbstractCellNameType.java:58)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.utils.btree.BTree.find(BTree.java:277) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.utils.btree.NodeBuilder.update(NodeBuilder.java:154)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.utils.btree.Builder.update(Builder.java:74) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.utils.btree.BTree.update(BTree.java:186) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.AtomicBTreeColumns.addAllWithSizeDelta(AtomicBTreeColumns.java:225)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.Memtable.put(Memtable.java:210) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.ColumnFamilyStore.apply(ColumnFamilyStore.java:1225)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.Keyspace.apply(Keyspace.java:396) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.Keyspace.apply(Keyspace.java:359) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.db.commitlog.CommitLogReplayer$1.runMayThrow(CommitLogReplayer.java:455)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_31]
>         at org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
~[apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-2.1.10.jar:2.1.10-SNAPSHOT]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_31]
> {code}



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