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Posted to commits@cassandra.apache.org by "Ronald Ray (JIRA)" <ji...@apache.org> on 2011/01/16 08:42:46 UTC
[jira] Issue Comment Edited: (CASSANDRA-1994) Re-open of
CASSANDRA-1346, EOF exception when doing super column query
[ https://issues.apache.org/jira/browse/CASSANDRA-1994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12982232#action_12982232 ]
Ronald Ray edited comment on CASSANDRA-1994 at 1/16/11 2:42 AM:
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It seems the issue was with a corrupted record that I was attempting to access, so there seems to be some state that a record can get into where it can no longer be read. After deleting the column from the supercolumn, and compacting (would still fail if I did not compact), I believe it has gone away.
was (Author: lomilar):
It seems the issue was with a corrupted record that I was attempting to access, so there seems to be some state that a record can get into where it can no longer be read.
> Re-open of CASSANDRA-1346, EOF exception when doing super column query
> ----------------------------------------------------------------------
>
> Key: CASSANDRA-1994
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1994
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.0
> Environment: Linux sphinx 2.6.35-23-server #41-Ubuntu SMP Wed Nov 24 12:12:17 UTC 2010 x86_64 GNU/Linux
> Reporter: Ronald Ray
>
> Having the same issue as the following bug.
> https://issues.apache.org/jira/browse/CASSANDRA-1346
> I get the error when attempting to do super-column queries (one at a time, not multi-threaded) as quickly as possible on a keystore with several hundred thousand keys (each with ~1000 super columns, each with 0-1000+ columns).
> Here is the stack:
> ERROR 20:56:42,018 Fatal exception in thread Thread[ReadStage:191,5,main]
> java.io.IOError: java.io.EOFException
> at org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:74)
> at org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(NamesQueryFilter.java:59)
> at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:80)
> at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1215)
> at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1107)
> at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1077)
> at org.apache.cassandra.db.Table.getRow(Table.java:384)
> at org.apache.cassandra.db.SliceByNamesReadCommand.getRow(SliceByNamesReadCommand.java:60)
> at org.apache.cassandra.db.ReadVerbHandler.doVerb(ReadVerbHandler.java:68)
> at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:63)
> 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:619)
> Caused by: java.io.EOFException
> at org.apache.cassandra.io.util.MappedFileDataInput.readFully(MappedFileDataInput.java:249)
> at org.apache.cassandra.utils.FBUtilities.readByteArray(FBUtilities.java:280)
> at org.apache.cassandra.db.ColumnSerializer.deserialize(ColumnSerializer.java:76)
> at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:364)
> at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:313)
> at org.apache.cassandra.db.columniterator.SSTableNamesIterator.readIndexedColumns(SSTableNamesIterator.java:182)
> at org.apache.cassandra.db.columniterator.SSTableNamesIterator.read(SSTableNamesIterator.java:132)
> at org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:70)
> ... 12 more
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