Added Jira item CASSANDRA-2675. I also included a test program in the ticket to reproduce the issue.
Thanks, Rene -----Original Message----- From: Sylvain Lebresne [mailto:sylv...@datastax.com] Sent: donderdag 19 mei 2011 17:13 To: user@cassandra.apache.org Subject: Re: java.io.IOError: java.io.EOFException with version 0.7.6 Would you have a simple script to reproduce the issue ? And could you open a JIRA ticket. Sylvain On Thu, May 19, 2011 at 4:22 PM, Rene Kochen <rene.koc...@emea.schange.com> wrote: > I have some severe problems on our production site. > I created the following test program to reproduce the issue with Cassandra > 0.7.6 (with empty data set). > > 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 the following > error: > > 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
