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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: [0.7.2] Compacting exception
Date Fri, 18 Mar 2011 13:23:04 GMT
Upgrade to 0.7.4 and run nodetool scrub (then watch the log).  If it
reports bad rows then run repair post-scrub.

On Fri, Mar 18, 2011 at 6:44 AM, Mateusz Korniak
<mateusz-lists@ant.gliwice.pl> wrote:
> Hi !
> I have run with Cassandra 0.7.2 out of disc space and after moving to bigger
> partition I experience compaction failures[1].
>
> 1) I suspect one of SSTables is broken. If I am right how can I find which one
> exactly ?
>
> 2) Knowing which one is broken is it safe to stop Cassandra, remove
> -Data.db -Filter.db -Index.db -Statistics.db of broken SSTable and restart ?
> Sure I will loose data but it's one of RF=3 nodes so it's not big problem.
>
> Any suggestions, hints ?
> Thanks in advance, regards,
>
> [1]
> INFO [CompactionExecutor:1] 2011-03-18 12:27:17,103 CompactionManager.java
> (line 458) Compacted to /var/lib/cassandra/data/foo/bar-tmp-f-707-Data.db.
> 42,276,185 to 42,103,628 (~99% of original) bytes for 33,869 keys.  Time:
> 25,924ms.
>  INFO [CompactionExecutor:1] 2011-03-18 12:27:17,133 CompactionManager.java
> (line 373) Compacting [org.apache.cassandra.io.sstable.SSTableReader(path=
> '/var/lib/cassandra/data/foo/bar-f-238-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-243-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-361-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-635-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-643-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-680-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-684-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-685-Data.db'),
> org.apache.cassandra.io.sstable.SSTableReader(
> path='/var/lib/cassandra/data/foo/bar-f-687-Data.db')]
> ERROR [CompactionExecutor:1] 2011-03-18 12:27:18,241
> AbstractCassandraDaemon.java (line 114) Fatal exception in thread
> Thread[CompactionExecutor:1,1,main]
> java.io.IOError: java.io.EOFException
>        at
> org.apache.cassandra.io.sstable.SSTableIdentityIterator.<init>(SSTableIdentityIterator.java:78)
>        at
> org.apache.cassandra.io.sstable.SSTableScanner$KeyScanningIterator.next(SSTableScanner.java:179)
>        at
> org.apache.cassandra.io.sstable.SSTableScanner$KeyScanningIterator.next(SSTableScanner.java:144)
>        at
> org.apache.cassandra.io.sstable.SSTableScanner.next(SSTableScanner.java:136)
>        at
> org.apache.cassandra.io.sstable.SSTableScanner.next(SSTableScanner.java:39)
>        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:136)
>        at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:131)
>        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:427)
>        at
> org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:123)
>        at
> org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:93)
>        at java.util.concurrent.FutureTask$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)
> Caused by: java.io.EOFException
>        at
> org.apache.cassandra.io.sstable.IndexHelper.skipIndex(IndexHelper.java:65)
>        at
> org.apache.cassandra.io.sstable.SSTableIdentityIterator.<init>(SSTableIdentityIterator.java:70)
>        ... 20 more
>
>
> --
> Mateusz Korniak
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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