Note that this is a read-time bug, there is no data loss involved. Patch is committed with a new test to prevent future regressions.
I've asked Hudson (https://hudson.apache.org/hudson/job/Cassandra) to create a new binary build with the patch included but the backlog is long enough that I don't expect to see it before our next "nightly" build. We'll get 0.7.2 out quickly. On Tue, Feb 15, 2011 at 12:15 PM, Sylvain Lebresne <sylv...@datastax.com> wrote: > On Tue, Feb 15, 2011 at 7:10 PM, ruslan usifov <ruslan.usi...@gmail.com> > wrote: >> >> It will be great if patch appear very quick > > patch attached here: https://issues.apache.org/jira/browse/CASSANDRA-2165 > Hoping this is quick enough. > >> >> 2011/2/15 Jonathan Ellis <jbel...@gmail.com> >>> >>> I can reproduce with your script. Thanks! >>> >>> 2011/2/15 Jonas Borgström <jonas.borgst...@trioptima.com>: >>> > Hi all, >>> > >>> > While testing the new 0.7.1 release I got the following exception: >>> > >>> > ERROR [ReadStage:11] 2011-02-15 16:39:18,105 >>> > DebuggableThreadPoolExecutor.java (line 103) Error in >>> > ThreadPoolExecutor >>> > java.io.IOError: java.io.EOFException >>> > at >>> > >>> > org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:75) >>> > 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:1274) >>> > at >>> > >>> > org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1166) >>> > at >>> > >>> > org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1095) >>> > at org.apache.cassandra.db.Table.getRow(Table.java:384) >>> > at >>> > >>> > org.apache.cassandra.db.SliceByNamesReadCommand.getRow(SliceByNamesReadCommand.java:60) >>> > at >>> > >>> > org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:473) >>> > at >>> > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) >>> > at >>> > >>> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) >>> > at >>> > >>> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) >>> > at java.lang.Thread.run(Thread.java:636) >>> > Caused by: java.io.EOFException >>> > at java.io.DataInputStream.readInt(DataInputStream.java:392) >>> > at >>> > >>> > org.apache.cassandra.utils.BloomFilterSerializer.deserialize(BloomFilterSerializer.java:48) >>> > at >>> > >>> > org.apache.cassandra.utils.BloomFilterSerializer.deserialize(BloomFilterSerializer.java:30) >>> > at >>> > >>> > org.apache.cassandra.io.sstable.IndexHelper.defreezeBloomFilter(IndexHelper.java:108) >>> > at >>> > >>> > org.apache.cassandra.db.columniterator.SSTableNamesIterator.read(SSTableNamesIterator.java:106) >>> > at >>> > >>> > org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:71) >>> > ... 12 more >>> > >>> > I'm able reliably reproduce this using the following one node cluster: >>> > - apache-cassandra-0.7.1-bin.tar.gz >>> > - Fedora 14 >>> > - java version "1.6.0_20". >>> > OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode) >>> > - Default cassandra.yaml >>> > - cassandra-env.sh: MAX_HEAP_SIZE="1G"; HEAP_NEWSIZE="200M" >>> > >>> > cassandra-cli initialization: >>> > - create keyspace foo; >>> > - use foo; >>> > - create column family datasets; >>> > >>> > $ python dataset_check.py (attached) >>> > Inserting row 0 of 10 >>> > Inserting row 1 of 10 >>> > Inserting row 2 of 10 >>> > Inserting row 3 of 10 >>> > Inserting row 4 of 10 >>> > Inserting row 5 of 10 >>> > Inserting row 6 of 10 >>> > Inserting row 7 of 10 >>> > Inserting row 8 of 10 >>> > Inserting row 9 of 10 >>> > Attempting to fetch key 0 >>> > Traceback (most recent call last): >>> > ... >>> > pycassa.pool.MaximumRetryException: Retried 6 times >>> > >>> > After this I have 6 EOFExceptions in system.log. >>> > Running "get datasets[0]['name'];" using cassandra-cli also triggers >>> > the >>> > same exception. >>> > I've not been able to reproduce this with cassandra 0.7.0. >>> > >>> > Regards, >>> > Jonas >>> > >>> > >>> > >>> >>> >>> >>> -- >>> 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
