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https://issues.apache.org/jira/browse/CASSANDRA-4687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13464416#comment-13464416
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Jonathan Ellis commented on CASSANDRA-4687:
-------------------------------------------
I understand that you have primary responsibilities in your job. If this is an
important issue for you to have fixed, then we are here to fix the issue once
we can determine the root cause, which is what I'm trying to do here. If you
can assist us that will probably be the quickest path to resolution.
Besides this specific issue, contributing your test cases back to the community
will have more long-term benefits than keeping them private.
> Exception: DecoratedKey(xxx, yyy) != DecoratedKey(zzz, kkk)
> -----------------------------------------------------------
>
> Key: CASSANDRA-4687
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4687
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.5
> Environment: CentOS 6.3 64-bit, Oracle JRE 1.6.0.33 64-bit, single
> node cluster
> Reporter: Leonid Shalupov
> Assignee: Pavel Yaskevich
> Priority: Critical
> Fix For: 1.1.6
>
> Attachments: 4687-debugging.txt
>
>
> Under heavy write load sometimes cassandra fails with assertion error.
> git bisect leads to commit 295aedb278e7a495213241b66bc46d763fd4ce66.
> works fine if global key/row caches disabled in code.
> {quote}
> java.lang.AssertionError: DecoratedKey(xxx, yyy) != DecoratedKey(zzz, kkk) in
> /var/lib/cassandra/data/...-he-1-Data.db
> at
> org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:60)
> at
> org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:67)
> at
> org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:79)
> at
> org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:256)
> at
> org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:64)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1345)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1207)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1142)
> at org.apache.cassandra.db.Table.getRow(Table.java:378)
> at
> org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:69)
> at
> org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:819)
> at
> org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1253)
> 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:662)
> {quote}
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