Omri Iluz created CASSANDRA-10478:
-------------------------------------
Summary: Seek position is not within mmap segment
Key: CASSANDRA-10478
URL: https://issues.apache.org/jira/browse/CASSANDRA-10478
Project: Cassandra
Issue Type: Bug
Components: Core
Environment: Cassandra 2.2.2
Java 1.8.0.60
Reporter: Omri Iluz
Priority: Critical
After upgrading to 2.2.2 we started seeing timeouts accompanied by the
following error in the log. Disabling mmap (by using "disk_access_mode:
standard") completely solves the problem.
We did not experience this problem in 2.2.1.
The change to src/java/org/apache/cassandra/io/util/ByteBufferDataInput.java in
the following commit seems interesting as it changes the calculation of the
mmap boundaries (and moves from <= to <)
https://github.com/apache/cassandra/commit/25de92e321604626d6c098233082904832c07814
{noformat}
WARN [SharedPool-Worker-1] 2015-10-07 03:40:39,771
AbstractTracingAwareExecutorService.java:169 - Uncaught exception on thread
Thread[SharedPool-Worker-1,5,main]: {}
java.lang.RuntimeException:
org.apache.cassandra.io.sstable.CorruptSSTableException: java.io.IOException:
Seek position 717680 is not within mmap segment (seg offs: 0, length: 717680)
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2187)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
~[na:1.8.0_60]
at
org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
~[apache-cassandra-2.2.2.jar:2.2.2]
at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
[apache-cassandra-2.2.2.jar:2.2.2]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
Caused by: org.apache.cassandra.io.sstable.CorruptSSTableException:
java.io.IOException: Seek position 717680 is not within mmap segment (seg offs:
0, length: 717680)
at
org.apache.cassandra.io.sstable.format.big.BigTableReader.getPosition(BigTableReader.java:250)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.io.sstable.format.SSTableReader.getPosition(SSTableReader.java:1558)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.io.sstable.format.big.SSTableSliceIterator.<init>(SSTableSliceIterator.java:42)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.io.sstable.format.big.BigTableReader.iterator(BigTableReader.java:75)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:246)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:62)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:270)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:64)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:2004)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1808)
~[apache-cassandra-2.2.2.jar:2.2.2]
at org.apache.cassandra.db.Keyspace.getRow(Keyspace.java:360)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:85)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1537)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2183)
~[apache-cassandra-2.2.2.jar:2.2.2]
... 4 common frames omitted
Caused by: java.io.IOException: Seek position 717680 is not within mmap segment
(seg offs: 0, length: 717680)
at
org.apache.cassandra.io.util.ByteBufferDataInput.seek(ByteBufferDataInput.java:47)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.io.util.AbstractDataInput.skipBytes(AbstractDataInput.java:33)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.io.util.FileUtils.skipBytesFully(FileUtils.java:405)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.RowIndexEntry$Serializer.skipPromotedIndex(RowIndexEntry.java:164)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.db.RowIndexEntry$Serializer.skip(RowIndexEntry.java:155)
~[apache-cassandra-2.2.2.jar:2.2.2]
at
org.apache.cassandra.io.sstable.format.big.BigTableReader.getPosition(BigTableReader.java:244)
~[apache-cassandra-2.2.2.jar:2.2.2]
... 17 common frames omitted
{noformat}
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