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https://issues.apache.org/jira/browse/CASSANDRA-3306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13144240#comment-13144240
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Sylvain Lebresne commented on CASSANDRA-3306:
---------------------------------------------
I'll note that more info have been added to the messages thrown by the
exception here in 1.0.1. So if someone can reproduce this issue on 1.0.1, it
would be useful to get the stacktrace (the full system.log would actually be
even better).
> Error in LeveledCompactionStrategy
> ----------------------------------
>
> Key: CASSANDRA-3306
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3306
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Radim Kolar
> Fix For: 1.0.3
>
>
> during stress testing, i always get this error making leveledcompaction
> strategy unusable. Should be easy to reproduce - just write fast.
> ERROR [CompactionExecutor:6] 2011-10-04 15:48:52,179
> AbstractCassandraDaemon.java (line 133) Fatal exception in thread
> Thread[CompactionExecutor:6,5,main]
> java.lang.AssertionError
> at
> org.apache.cassandra.db.DataTracker$View.newSSTables(DataTracker.java:580)
> at
> org.apache.cassandra.db.DataTracker$View.replace(DataTracker.java:546)
> at org.apache.cassandra.db.DataTracker.replace(DataTracker.java:268)
> at
> org.apache.cassandra.db.DataTracker.replaceCompactedSSTables(DataTracker.java:232)
> at
> org.apache.cassandra.db.ColumnFamilyStore.replaceCompactedSSTables(ColumnFamilyStore.java:960)
> at
> org.apache.cassandra.db.compaction.CompactionTask.execute(CompactionTask.java:199)
> at
> org.apache.cassandra.db.compaction.LeveledCompactionTask.execute(LeveledCompactionTask.java:47)
> at
> org.apache.cassandra.db.compaction.CompactionManager$1.call(CompactionManager.java:131)
> at
> org.apache.cassandra.db.compaction.CompactionManager$1.call(CompactionManager.java:114)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> 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)
> and this is in json data for table:
> {
> "generations" : [ {
> "generation" : 0,
> "members" : [ 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470,
> 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 483, 484 ]
> }, {
> "generation" : 1,
> "members" : [ ]
> }, {
> "generation" : 2,
> "members" : [ ]
> }, {
> "generation" : 3,
> "members" : [ ]
> }, {
> "generation" : 4,
> "members" : [ ]
> }, {
> "generation" : 5,
> "members" : [ ]
> }, {
> "generation" : 6,
> "members" : [ ]
> }, {
> "generation" : 7,
> "members" : [ ]
> } ]
> }
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