Similar case here http://www.mail-archive.com/user@cassandra.apache.org/msg11358.html
Suggestion was to run repair if scrub raises an error. Aaron On 27 Mar 2011, at 16:17, Shotaro Kamio wrote: > Hi, > > Our cluster uses cassandra 0.7.4 (upgraded from 0.7.3) with > replication = 3. I found that error occurs on one node during hinted > handoff with following error (log #1 below). > When I tried out "scrub system HintsColumnFamily", I saw an ERROR in > log (log #2 below). > Do you think these errors are critical ? > I tried to "repair system HintsColumnFamily". But, it refuses to run > with "No neighbors". I can understand because hints are not > replicated. But then, is there any way to fix it without data loss? > > INFO [manual-repair-0996a2ec-26d3-4243-9586-d56daf30f9bd] 2011-03-27 > 13:55:05,664 AntiEntropyService.java (line 752) No neighbors to repair > with: manual-repair-0996a2ec-26d3-4243-9586-d56daf30f9bd completed. > > > Best regards, > Shotaro > > > ---------------- Log #1: Error on hinted handoff > ------------------------------------------------ > > ERROR [HintedHandoff:1] 2011-03-26 20:04:22,528 > DebuggableThreadPoolExecutor.java (line 103) Error in > ThreadPoolExecutor > java.lang.RuntimeException: java.lang.RuntimeException: error reading > 4976040 of 4976067 > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34) > 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.lang.RuntimeException: error reading 4976040 of 4976067 > at > org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:83) > at > org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:40) > 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.anyHasNext(CollatingIterator.java:364) > at > org.apache.commons.collections.iterators.CollatingIterator.hasNext(CollatingIterator.java:217) > at > org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:63) > 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.HintedHandOffManager.deliverHintsToEndpoint(HintedHandOffManager.java:321) > at > org.apache.cassandra.db.HintedHandOffManager.access$100(HintedHandOffManager.java:88) > at > org.apache.cassandra.db.HintedHandOffManager$2.runMayThrow(HintedHandOffManager.java:409) > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) > ... 3 more > Caused by: java.io.EOFException > at java.io.RandomAccessFile.readByte(RandomAccessFile.java:591) > at > org.apache.cassandra.utils.ByteBufferUtil.readShortLength(ByteBufferUtil.java:324) > at > org.apache.cassandra.utils.ByteBufferUtil.readWithShortLength(ByteBufferUtil.java:335) > at > org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:351) > at > org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:311) > at > org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:79) > ... 21 more > > ------------------------------------------ > > ---- Log #2: Error on scrub ------------------- > > INFO [CompactionExecutor:1] 2011-03-27 08:07:34,527 > CompactionManager.java (line 512) Scrubbing > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-530-Data.db') > WARN [CompactionExecutor:1] 2011-03-27 08:07:34,602 > CompactionManager.java (line 607) Non-fatal error reading row > (stacktrace follows) > java.io.IOError: java.io.IOException: Impossible row size 406136901 > 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 406136901 > ... 8 more > INFO [CompactionExecutor:1] 2011-03-27 08:07:34,602 > CompactionManager.java (line 613) Retrying from row index; data is > 406134739 bytes starting at 21 > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,065 > CompactionManager.java (line 653) Scrub of > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-530-Data.db') > complete: 1 rows in new sstable and 0 empty (tombstoned) rows dropped > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,065 > CompactionManager.java (line 512) Scrubbing > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-531-Data.db') > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,145 > CompactionManager.java (line 653) Scrub of > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-531-Data.db') > complete: 1 rows in new sstable and 0 empty (tombstoned) rows dropped > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,145 > CompactionManager.java (line 512) Scrubbing > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-532-Data.db') > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,363 > CompactionManager.java (line 653) Scrub of > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-532-Data.db') > complete: 1 rows in new sstable and 0 empty (tombstoned) rows dropped > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,364 > CompactionManager.java (line 512) Scrubbing > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-533-Data.db') > INFO [CompactionExecutor:1] 2011-03-27 08:08:10,540 > CompactionManager.java (line 653) Scrub of > SSTableReader(path='/data/cassandra/system/HintsColumnFamily-f-533-Data.db') > complete: 1 rows in new sstable and 0 empty (tombstoned) rows dropped > --------------------------------------------------------
