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From "Stefania (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12014) IndexSummary > 2G causes an assertion error
Date Wed, 22 Feb 2017 16:20:44 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15878612#comment-15878612
] 

Stefania commented on CASSANDRA-12014:
--------------------------------------

[~jjirsa] I think this fell off the radar for both of us. Are you still OK being the reviewer?


I strongly suggest we consider this [simplified patch|https://github.com/apache/cassandra/compare/cassandra-3.0...stef1927:12014-simplified-3.0]
for 3.0, and possibly for 3.11 and trunk as well. I don't think the size of the original patch
is justified just to remove this assertion. The simplified patch is basically what you suggested
initially, using a configurable default key size. Instead of failing with an assertion, it
will log an error and use an incomplete index summary. WDYT?

> IndexSummary > 2G causes an assertion error
> -------------------------------------------
>
>                 Key: CASSANDRA-12014
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12014
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Brandon Williams
>            Assignee: Stefania
>            Priority: Minor
>             Fix For: 3.0.x, 3.11.x
>
>
> {noformat}
> ERROR [CompactionExecutor:1546280] 2016-06-01 13:21:00,444  CassandraDaemon.java:229
- Exception in thread Thread[CompactionExecutor:1546280,1,main]
> java.lang.AssertionError: null
>     at org.apache.cassandra.io.sstable.IndexSummaryBuilder.maybeAddEntry(IndexSummaryBuilder.java:171)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.io.sstable.SSTableWriter$IndexWriter.append(SSTableWriter.java:634)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.io.sstable.SSTableWriter.afterAppend(SSTableWriter.java:179)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:205) ~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:126)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:197)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:73)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:263)
~[cassandra-all-2.1.12.1046.jar:2.1.12.1046]
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[na:1.7.0_51]
>     at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[na:1.7.0_51]
>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
~[na:1.7.0_51]
>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_51]
>     at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
> {noformat}
> I believe this can be fixed by raising the min_index_interval, but we should have a better
method of coping with this than throwing the AE.



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