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From "Dmitrii Saprykin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-9126) java.lang.RuntimeException: Last written key DecoratedKey >= current key DecoratedKey
Date Sat, 22 Aug 2015 12:27:46 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-9126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14708014#comment-14708014
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Dmitrii Saprykin commented on CASSANDRA-9126:
---------------------------------------------

Thanks a lot for your reply!

cfstats output for affected keyspace:
{noformat}
Keyspace: bigks
        Read Count: 50
        Read Latency: 12.39796 ms.
        Write Count: 228916
        Write Latency: 0.031050756609411312 ms.
        Pending Tasks: 0

                Table: chunks
                SSTable count: 1208
                SSTables in each level: [5/4, 14/10, 105/100, 1016/1000, 68, 0, 0, 0, 0]
                Space used (live), bytes: 311268548761
                Space used (total), bytes: 311268548761
                Off heap memory used (total), bytes: 353408
                SSTable Compression Ratio: 0.0
                Number of keys (estimate): 329472
                Memtable cell count: 0
                Memtable data size, bytes: 0
                Memtable switch count: 1
                Local read count: 0
                Local read latency: 0.000 ms
                Local write count: 11
                Local write latency: 0.000 ms
                Pending tasks: 0
                Bloom filter false positives: 0
                Bloom filter false ratio: 0.00000
                Bloom filter space used, bytes: 321888
                Bloom filter off heap memory used, bytes: 312224
                Index summary off heap memory used, bytes: 41184
                Compression metadata off heap memory used, bytes: 0
                Compacted partition minimum bytes: 61215
                Compacted partition maximum bytes: 36157190
                Compacted partition mean bytes: 1325042
                Average live cells per slice (last five minutes): 0.0
                Average tombstones per slice (last five minutes): 0.0
{noformat}

> java.lang.RuntimeException: Last written key DecoratedKey >= current key DecoratedKey
> -------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-9126
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9126
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: srinivasu gottipati
>            Priority: Critical
>             Fix For: 2.0.x
>
>
> Cassandra V: 2.0.14,
> Getting the following exceptions while trying to compact (I see this issue was raised
in earlier versions and marked as closed. However it still appears in 2.0.14). In our case,
compaction is not getting succeeded and keep failing with this error.:
> {code}java.lang.RuntimeException: Last written key DecoratedKey(3462767860784856708,
354038323137333038305f3330325f31355f474d4543454f) >= current key DecoratedKey(3462334604624154281,
354036333036353334315f3336315f31355f474d4543454f) writing into {code}
> .......
> Stacktrace:{code}
> 	at org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:143)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:166)
> 	at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:167)
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> 	at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:60)
> 	at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
> 	at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:198)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at java.lang.Thread.run(Thread.java:745){code}
> Any help is greatly appreciated



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