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From "rene kochen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-2675) java.io.IOError: java.io.EOFException with version 0.7.6
Date Fri, 20 May 2011 09:10:47 GMT
java.io.IOError: java.io.EOFException with version 0.7.6 
---------------------------------------------------------

                 Key: CASSANDRA-2675
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2675
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.7.6
         Environment: Single node.
            Reporter: rene kochen


I use the following data-model

column_metadata: []
name: Customers
column_type: Super
gc_grace_seconds: 60

I have a super-column-family with a single row.
Within this row I have a single super-column.
Within this super-column, I concurrently create, read and delete columns.

I have three threads:

- Do in a loop: add a column to the super-column.
- Do in a loop: delete a random column from the super-column.
- Do in a loop: read the super-column (with all columns).

After running the above threads concurrently, I always receive one of the following errors:

ERROR 17:09:57,036 Fatal exception in thread Thread[ReadStage:81,5,main]
java.io.IOError: java.io.EOFException
        at org.apache.cassandra.io.util.ColumnIterator.deserializeNext(ColumnSortedMap.java:252)
        at org.apache.cassandra.io.util.ColumnIterator.next(ColumnSortedMap.java:268)
        at org.apache.cassandra.io.util.ColumnIterator.next(ColumnSortedMap.java:227)
        at java.util.concurrent.ConcurrentSkipListMap.buildFromSorted(Unknown Source)
        at java.util.concurrent.ConcurrentSkipListMap.<init>(Unknown Source)
        at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:379)
        at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:362)
        at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:322)
        at org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:79)
        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.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:69)
        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:1390)
        at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1267)
        at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1195)
        at org.apache.cassandra.db.Table.getRow(Table.java:324)
        at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:63)
        at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:451)
        at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.io.EOFException
        at java.io.RandomAccessFile.readByte(Unknown Source)
        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.ColumnSerializer.deserialize(ColumnSerializer.java:71)
        at org.apache.cassandra.io.util.ColumnIterator.deserializeNext(ColumnSortedMap.java:248)
        ... 30 more

ERROR 11:02:19,824 Fatal exception in thread Thread[ReadStage:3404,5,main]
java.io.IOError: java.io.IOException: mmap segment underflow; remaining is 660267 but 758592100
requested
	at org.apache.cassandra.io.util.ColumnIterator.deserializeNext(ColumnSortedMap.java:252)
	at org.apache.cassandra.io.util.ColumnIterator.next(ColumnSortedMap.java:268)
	at org.apache.cassandra.io.util.ColumnIterator.next(ColumnSortedMap.java:227)
	at java.util.concurrent.ConcurrentSkipListMap.buildFromSorted(Unknown Source)
	at java.util.concurrent.ConcurrentSkipListMap.<init>(Unknown Source)
	at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:379)
	at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:362)
	at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:322)
	at org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:79)
	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.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:69)
	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:1390)
	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1267)
	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1195)
	at org.apache.cassandra.db.Table.getRow(Table.java:324)
	at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:63)
	at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:451)
	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

ERROR 11:02:19,824 Fatal exception in thread Thread[ReadStage:3404,5,main]
java.io.IOError: java.io.IOException: mmap segment underflow; remaining is 660267 but 758592100
requested
	at org.apache.cassandra.io.util.ColumnIterator.deserializeNext(ColumnSortedMap.java:252)
	at org.apache.cassandra.io.util.ColumnIterator.next(ColumnSortedMap.java:268)
	at org.apache.cassandra.io.util.ColumnIterator.next(ColumnSortedMap.java:227)
	at java.util.concurrent.ConcurrentSkipListMap.buildFromSorted(Unknown Source)
	at java.util.concurrent.ConcurrentSkipListMap.<init>(Unknown Source)
	at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:379)
	at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:362)
	at org.apache.cassandra.db.SuperColumnSerializer.deserialize(SuperColumn.java:322)
	at org.apache.cassandra.db.columniterator.SimpleSliceReader.computeNext(SimpleSliceReader.java:79)
	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.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:69)
	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:1390)
	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1267)
	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1195)
	at org.apache.cassandra.db.Table.getRow(Table.java:324)
	at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:63)
	at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:451)
	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

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