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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2010/07/19 21:52:06 UTC

[jira] Resolved: (CASSANDRA-1300) Assert in RandomPartitioner causes unending compaction

     [ https://issues.apache.org/jira/browse/CASSANDRA-1300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis resolved CASSANDRA-1300.
---------------------------------------

    Resolution: Duplicate

Duplicate of CASSANDRA-1170.

Short version: delete the bad sstable and repair.

> Assert in RandomPartitioner causes unending compaction
> ------------------------------------------------------
>
>                 Key: CASSANDRA-1300
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1300
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.6.3
>            Reporter: Anthony Molinaro
>
> I have a set of 4 sstables which equal about 600GB of data, whenever they are compacted after about 2 days I get this exception
> ERROR [COMPACTION-POOL:1] 2010-07-17 19:09:49,784 CassandraDaemon.java (line 83) Uncaught exception in thread Thread[COMPACTION-POOL:1,5,main]                  
> java.util.concurrent.ExecutionException: java.lang.StringIndexOutOfBoundsException: String index out of range: -1       
>         at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)   
>         at java.util.concurrent.FutureTask.get(FutureTask.java:83)              
>         at org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(Debug+gableThreadPoolExecutor.java:86)                                               
>         at org.apache.cassandra.db.CompactionManager$CompactionExecutor.afterExecute(CompactionManager.java:577)                                                         
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888)                                                                           
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:619)Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1       
>         at java.lang.String.substring(String.java:1938)                         
>         at org.apache.cassandra.dht.RandomPartitioner.convertFromDiskFormat(RandomPartitioner.java:50)                                                                   
>         at org.apache.cassandra.io.IteratingRow.<init>(IteratingRow.java:48)    
>         at org.apache.cassandra.io.SSTableScanner$KeyScanningIterator.next(SSTableScanner.java:136)                                                                      
>         at org.apache.cassandra.io.SSTableScanner$KeyScanningIterator.next(SSTableScanner.java:113)                                                                      
>         at org.apache.cassandra.io.SSTableScanner.next(SSTableScanner.java:105) 
>         at org.apache.cassandra.io.SSTableScanner.next(SSTableScanner.java:34)  
>         at org.apache.commons.collections.iterators.CollatingIterator.set(CollatingIterator.java:284)                                                                    
>         at org.apache.commons.collections.iterators.CollatingIterator.least(CollatingIterator.java:326)                                                                  
>         at org.apache.commons.collections.iterators.CollatingIterator.next(CollatingIterator.java:230)                                                                   
>         at org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:68)                                                                             
>         at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:135)
>         at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:130)  
>         at org.apache.commons.collections.iterators.FilterIterator.setNextObject(FilterIterator.java:183)                                                                
>         at org.apache.commons.collections.iterators.FilterIterator.hasNext(FilterIterator.java:94)                                                                       
>         at org.apache.cassandra.db.CompactionManager.doCompaction(CompactionManager.java:295)                                                                            
>         at org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:102)   
>         at org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:83)    
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)   
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)             
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)                                                                           
>         ... 2 more  
> After this expection, the compaction starts over and then crashes again.   This led to several thousand outstanding sstables hanging out waiting to be compacted.
>                                                                              

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