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From Daning <dan...@netseer.com>
Subject Re: Unable to create compaction marker
Date Thu, 22 Sep 2011 00:06:32 GMT
Thanks Jonathan. where is the data directory configured? since I did not 
any permission problem.

Daning

On 09/21/2011 11:01 AM, Jonathan Ellis wrote:
> Means Cassandra couldn't create an empty file in the data directory
> designating a sstable as compacted.  I'd look for permissions
> problems.
>
> Short term there is no dire consequence, although it will keep
> re-compacting that sstable.  Longer term you'll run out of disk space
> since nothing gets deleted.
>
> On Wed, Sep 21, 2011 at 1:44 PM, Daning<daning@netseer.com>  wrote:
>> I got this exception in system.log several times a day, do you have idea
>> what caused this problem and what is the consequence?
>>
>>
>> ERROR [CompactionExecutor:12] 2011-09-15 14:29:19,578
>> AbstractCassandraDaemon.java (line 139) Fatal exception in thread
>> Thread[CompactionExecutor:12,1,main]
>> java.io.IOError: java.io.IOException: Unable to create compaction marker
>>         at
>> org.apache.cassandra.io.sstable.SSTableReader.markCompacted(SSTableReader.java:642)
>>         at
>> org.apache.cassandra.db.DataTracker.removeOldSSTablesSize(DataTracker.java:280)
>>         at org.apache.cassandra.db.DataTracker.replace(DataTracker.java:253)
>>         at
>> org.apache.cassandra.db.DataTracker.replaceCompactedSSTables(DataTracker.java:214)
>>         at
>> org.apache.cassandra.db.ColumnFamilyStore.replaceCompactedSSTables(ColumnFamilyStore.java:1094)
>>         at
>> org.apache.cassandra.db.compaction.CompactionManager.doCompactionWithoutSizeEstimation(CompactionManager.java:599)
>>         at
>> org.apache.cassandra.db.compaction.CompactionManager.doCompaction(CompactionManager.java:507)
>>         at
>> org.apache.cassandra.db.compaction.CompactionManager$1.call(CompactionManager.java:142)
>>         at
>> org.apache.cassandra.db.compaction.CompactionManager$1.call(CompactionManager.java:108)
>>         at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
>>         at java.util.concurrent.FutureTask.run(Unknown Source)
>>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
>> Source)
>>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>>         at java.lang.Thread.run(Unknown Source)
>> Caused by: java.io.IOException: Unable to create compaction marker
>>         at
>> org.apache.cassandra.io.sstable.SSTableReader.markCompacted(SSTableReader.java:638)
>>         ... 13 more
>>
>>
>> Thank you in advance.
>>
>> Daning
>>
>
>


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