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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: 0.7.4 Bad sstables?
Date Tue, 26 Apr 2011 05:57:09 GMT
You shouldn't be using beta1 unless your goal is to help shake the bugs out. :)

0.7.5 release is in progress; the artifacts are at
http://people.apache.org/~slebresne/

On Tue, Apr 26, 2011 at 12:19 AM, Sanjeev Kulkarni
<sanjeev@locomatix.com> wrote:
> BTW where do i download 0.7.5? I went
> to http://www.apache.org/dyn/closer.cgi?path=/cassandra/0.7.5/apache-cassandra-0.7.5-bin.tar.gz
> but all the links there are broken.
> I was thinking if I just skip 0.7.5 and go with 0.8-beta1, would that be
> more advisable?
> Thanks!
>
> On Mon, Apr 25, 2011 at 9:30 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
>>
>> No. You'll need to run scrub.
>>
>> On Mon, Apr 25, 2011 at 11:19 PM, Sanjeev Kulkarni
>> <sanjeev@locomatix.com> wrote:
>> > Hi,
>> > Thanks for pointing out the fix. My followup question is if I install
>> > 0.7.5
>> > will the problem go away with the current data?
>> > Thanks!
>> > On Mon, Apr 25, 2011 at 8:25 PM, Jonathan Ellis <jbellis@gmail.com>
>> > wrote:
>> >>
>> >> Ah...  could be https://issues.apache.org/jira/browse/CASSANDRA-2349
>> >> (fixed for 0.7.5)
>> >>
>> >> On Mon, Apr 25, 2011 at 9:47 PM, Sanjeev Kulkarni
>> >> <sanjeev@locomatix.com>
>> >> wrote:
>> >> > The only other interesting information is that the columns of these
>> >> > rows
>> >> > all
>> >> > had some ttl attached to them. Not sure if that matters.
>> >> > Thanks!
>> >> >
>> >> > On Mon, Apr 25, 2011 at 5:27 PM, Terje Marthinussen
>> >> > <tmarthinussen@gmail.com> wrote:
>> >> >>
>> >> >> First column in the row has offset in the file of 190226525, last
>> >> >> valid
>> >> >> column is at 380293592, about 181MB from first column to last.
>> >> >> in_memory_compaction_limit was 128MB, so almost certainly above
the
>> >> >> limit.
>> >> >> Terje
>> >> >>
>> >> >> On Tue, Apr 26, 2011 at 8:53 AM, Terje Marthinussen
>> >> >> <tmarthinussen@gmail.com> wrote:
>> >> >>>
>> >> >>> In my case, probably yes. From thw rows I have looked at, I
think I
>> >> >>> have
>> >> >>> only seen this on rows with 1 million plus columns/supercolumns.
>> >> >>>
>> >> >>> May very well been larger than in memory limit. I think the
>> >> >>> compacted
>> >> >>> row
>> >> >>> I looked closer at was about 200MB and the in memory limit
may have
>> >> >>> been
>> >> >>> 256MB.
>> >> >>>
>> >> >>> I will see if we still got files around to verify.
>> >> >>>
>> >> >>> Regards,
>> >> >>> Terje
>> >> >>>
>> >> >>> On 26 Apr 2011, at 02:08, Jonathan Ellis <jbellis@gmail.com>
wrote:
>> >> >>>
>> >> >>> > Was it on a "large" row?  (> in_memory_compaction_limit?)
>> >> >>> >
>> >> >>> > I'm starting to suspect that LazilyCompactedRow is computing
row
>> >> >>> > size
>> >> >>> > incorrectly in some cases.
>> >> >>> >
>> >> >>> > On Mon, Apr 25, 2011 at 11:47 AM, Terje Marthinussen
>> >> >>> > <tmarthinussen@gmail.com> wrote:
>> >> >>> >> I have been hunting similar looking corruptions, especially
in
>> >> >>> >> the
>> >> >>> >> hints
>> >> >>> >> column family, but I believe it occurs somewhere while
>> >> >>> >>  compacting.
>> >> >>> >> I looked in greater detail on one sstable and the
row length was
>> >> >>> >> longer than
>> >> >>> >> the actual data in the row, and as far as I could
see, either
>> >> >>> >> the
>> >> >>> >> length was
>> >> >>> >> wrong or the row was missing data as there was was
no extra data
>> >> >>> >> in
>> >> >>> >> the row
>> >> >>> >> after the last column.
>> >> >>> >> This was however on a somewhat aging dataset, so suspected
it
>> >> >>> >> could
>> >> >>> >> be
>> >> >>> >> related to 2376.
>> >> >>> >>
>> >> >>> >> Playing around with 0.8 at the moment and not seen
it there
>> >> >>> >> yet....
>> >> >>> >> (bet it
>> >> >>> >> will show up tomorrow once I wrote that.. :))
>> >> >>> >> Terje
>> >> >>> >>
>> >> >>> >> On Tue, Apr 26, 2011 at 12:44 AM, Sanjeev Kulkarni
>> >> >>> >> <sanjeev@locomatix.com>
>> >> >>> >> wrote:
>> >> >>> >>>
>> >> >>> >>> Hi Sylvain,
>> >> >>> >>> I started it from 0.7.4 with the patch 2376. No
upgrade.
>> >> >>> >>> Thanks!
>> >> >>> >>>
>> >> >>> >>> On Mon, Apr 25, 2011 at 7:48 AM, Sylvain Lebresne
>> >> >>> >>> <sylvain@datastax.com>
>> >> >>> >>> wrote:
>> >> >>> >>>>
>> >> >>> >>>> Hi Sanjeev,
>> >> >>> >>>>
>> >> >>> >>>> What's the story of the cluster ? Did you
started with 0.7.4,
>> >> >>> >>>> or
>> >> >>> >>>> is
>> >> >>> >>>> it
>> >> >>> >>>> upgraded from
>> >> >>> >>>> some earlier version ?
>> >> >>> >>>>
>> >> >>> >>>> On Mon, Apr 25, 2011 at 5:54 AM, Sanjeev Kulkarni
>> >> >>> >>>> <sanjeev@locomatix.com>
>> >> >>> >>>> wrote:
>> >> >>> >>>>> Hey guys,
>> >> >>> >>>>> Running a one node cassandra server with
version 0.7.4
>> >> >>> >>>>> patched
>> >> >>> >>>>> with https://issues.apache.org/jira/browse/CASSANDRA-2376
>> >> >>> >>>>> The system was running fine for a couple
of days when we
>> >> >>> >>>>> started
>> >> >>> >>>>> noticing
>> >> >>> >>>>> something strange with cassandra. I stopped
all applications
>> >> >>> >>>>> and
>> >> >>> >>>>> restarted
>> >> >>> >>>>> cassandra. And then did a scrub. During
scrub, I noticed
>> >> >>> >>>>> these
>> >> >>> >>>>> in
>> >> >>> >>>>> the
>> >> >>> >>>>> logs
>> >> >>> >>>>> WARN [CompactionExecutor:1] 2011-04-24
23:37:07,561
>> >> >>> >>>>> CompactionManager.java
>> >> >>> >>>>> (line 607) Non-fatal error reading row
(stacktrace follows)
>> >> >>> >>>>> java.io.IOError: java.io.IOException:
Impossible row size
>> >> >>> >>>>> 1516029079813320210
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.doScrub(CompactionManager.java:589)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.access$600(CompactionManager.java:56)
>> >> >>> >>>>>        at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager$3.call(CompactionManager.java:195)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> java.util.concurrent.FutureTask$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.IOException: Impossible
row size
>> >> >>> >>>>> 1516029079813320210
>> >> >>> >>>>>    ... 8 more
>> >> >>> >>>>>  INFO [CompactionExecutor:1] 2011-04-24
23:37:07,640
>> >> >>> >>>>> CompactionManager.java
>> >> >>> >>>>> (line 613) Retrying from row index; data
is -1768177699 bytes
>> >> >>> >>>>> starting
>> >> >>> >>>>> at
>> >> >>> >>>>> 2626524914
>> >> >>> >>>>>  WARN [CompactionExecutor:1] 2011-04-24
23:37:07,641
>> >> >>> >>>>> CompactionManager.java
>> >> >>> >>>>> (line 633) Retry failed too.  Skipping
to next row (retry's
>> >> >>> >>>>> stacktrace
>> >> >>> >>>>> follows)
>> >> >>> >>>>> java.io.IOError: java.io.EOFException:
bloom filter claims to
>> >> >>> >>>>> be
>> >> >>> >>>>> 1868982636
>> >> >>> >>>>> bytes, longer than entire row size -1768177699
       at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.sstable.SSTableIdentityIterator.<init>(SSTableIdentityIterator.java:117)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.doScrub(CompactionManager.java:618)
>> >> >>> >>>>>        at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.access$600(CompactionManager.java:56)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager$3.call(CompactionManager.java:195)
>> >> >>> >>>>>        at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> java.util.concurrent.FutureTask$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: bloom
filter claims to be
>> >> >>> >>>>> 1868982636
>> >> >>> >>>>> bytes,
>> >> >>> >>>>> longer than entire row size -1768177699
       at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.sstable.IndexHelper.defreezeBloomFilter(IndexHelper.java:116)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.sstable.SSTableIdentityIterator.<init>(SSTableIdentityIterator.java:87)
>> >> >>> >>>>>        ... 8 more
>> >> >>> >>>>> WARN [CompactionExecutor:1] 2011-04-24
23:37:16,545
>> >> >>> >>>>> CompactionManager.java
>> >> >>> >>>>> (line 607) Non-fatal error reading row
(stacktrace follows)
>> >> >>> >>>>> java.io.IOError: java.io.EOFException
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.sstable.SSTableIdentityIterator.next(SSTableIdentityIterator.java:144)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.sstable.SSTableIdentityIterator.next(SSTableIdentityIterator.java:40)
>> >> >>> >>>>>         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
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> com.google.common.collect.Iterators$7.computeNext(Iterators.java:604)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:136)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:131)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnIndexer.serializeInternal(ColumnIndexer.java:76)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnIndexer.serialize(ColumnIndexer.java:50)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.LazilyCompactedRow.<init>(LazilyCompactedRow.java:90)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.getCompactedRow(CompactionManager.java:778)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.doScrub(CompactionManager.java:591)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager.access$600(CompactionManager.java:56)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.CompactionManager$3.call(CompactionManager.java:195)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> java.util.concurrent.FutureTask$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
>> >> >>> >>>>> java.io.RandomAccessFile.readFully(RandomAccessFile.java:383)
>> >> >>> >>>>>         at
>> >> >>> >>>>> java.io.RandomAccessFile.readFully(RandomAccessFile.java:361)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.util.BufferedRandomAccessFile.readBytes(BufferedRandomAccessFile.java:270)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.utils.ByteBufferUtil.read(ByteBufferUtil.java:317)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.utils.ByteBufferUtil.readWithLength(ByteBufferUtil.java:273)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:94)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:35)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.sstable.SSTableIdentityIterator.next(SSTableIdentityIterator.java:140)
>> >> >>> >>>>>         ... 22 more
>> >> >>> >>>>>  INFO [CompactionExecutor:1] 2011-04-24
23:37:16,561
>> >> >>> >>>>> CompactionManager.java
>> >> >>> >>>>> (line 613) Retrying from row index; data
is 78540539 bytes
>> >> >>> >>>>> starting
>> >> >>> >>>>> at
>> >> >>> >>>>> 2229643127
>> >> >>> >>>>>
>> >> >>> >>>>> And then when i restarted the readers,
i get the following
>> >> >>> >>>>> crash
>> >> >>> >>>>> ERROR [ReadStage:24] 2011-04-24 23:43:05,658
>> >> >>> >>>>> AbstractCassandraDaemon.java
>> >> >>> >>>>> (line 112) Fatal exception in thread
>> >> >>> >>>>> Thread[ReadStage:24,5,main]
>> >> >>> >>>>> java.lang.AssertionError: mmap segment
underflow; remaining
>> >> >>> >>>>> is
>> >> >>> >>>>> 791462117 but
>> >> >>> >>>>> 1970433058 requested
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.io.util.MappedFileDataInput.readBytes(MappedFileDataInput.java:119)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.utils.ByteBufferUtil.read(ByteBufferUtil.java:317)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.utils.ByteBufferUtil.readWithLength(ByteBufferUtil.java:273)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:94)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:35)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.columniterator.IndexedSliceReader$IndexedBlockFetcher.getNextBlock(IndexedSliceReader.java:181)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.columniterator.IndexedSliceReader.computeNext(IndexedSliceReader.java:121)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.columniterator.IndexedSliceReader.computeNext(IndexedSliceReader.java:49)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:136)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:131)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.columniterator.SSTableSliceIterator.hasNext(SSTableSliceIterator.java:108)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.commons.collections.iterators.CollatingIterator.set(CollatingIterator.java:283)
>> >> >>> >>>>>         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.cassandra.db.filter.SliceQueryFilter.collectReducedColumns(SliceQueryFilter.java:116)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.filter.QueryFilter.collectCollatedColumns(QueryFilter.java:130)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1368)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1245)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1173)
>> >> >>> >>>>>         at
>> >> >>> >>>>> org.apache.cassandra.db.Table.getRow(Table.java:333)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:63)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:453)
>> >> >>> >>>>>         at
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>>
>> >> >>> >>>>> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
>> >> >>> >>>>>         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)
>> >> >>> >>>>>
>> >> >>> >>>>> Any ideas?
>> >> >>> >>>>> Thanks!
>> >> >>> >>>
>> >> >>> >>
>> >> >>> >>
>> >> >>> >
>> >> >>> >
>> >> >>> >
>> >> >>> > --
>> >> >>> > Jonathan Ellis
>> >> >>> > Project Chair, Apache Cassandra
>> >> >>> > co-founder of DataStax, the source for professional Cassandra
>> >> >>> > support
>> >> >>> > http://www.datastax.com
>> >> >>
>> >> >
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> Jonathan Ellis
>> >> Project Chair, Apache Cassandra
>> >> co-founder of DataStax, the source for professional Cassandra support
>> >> http://www.datastax.com
>> >
>> >
>>
>>
>>
>> --
>> Jonathan Ellis
>> Project Chair, Apache Cassandra
>> co-founder of DataStax, the source for professional Cassandra support
>> http://www.datastax.com
>
>



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

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