NPE from PrecompactedRow
------------------------
Key: CASSANDRA-2528
URL: https://issues.apache.org/jira/browse/CASSANDRA-2528
Project: Cassandra
Issue Type: Bug
Reporter: Jackson Chung
received a NPE from trunk (0.8) on PrecompactedRow:
ERROR [CompactionExecutor:2] 2011-04-21 17:21:31,610
AbstractCassandraDaemon.java (line 112) Fatal exception in thread
Thread[CompactionExecutor:2,1,main]
java.lang.NullPointerException
at
org.apache.cassandra.io.PrecompactedRow.<init>(PrecompactedRow.java:86)
at
org.apache.cassandra.io.CompactionIterator.getCompactedRow(CompactionIterator.java:167)
at
org.apache.cassandra.io.CompactionIterator.getReduced(CompactionIterator.java:124)
at
org.apache.cassandra.io.CompactionIterator.getReduced(CompactionIterator.java:44)
at
org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:74)
at
com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
at
com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
at
org.apache.commons.collections.iterators.FilterIterator.setNextObject(FilterIterator.java:183)
at
org.apache.commons.collections.iterators.FilterIterator.hasNext(FilterIterator.java:94)
at
org.apache.cassandra.db.CompactionManager.doCompaction(CompactionManager.java:553)
at
org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:146)
at
org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:112)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
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:662)
size of data in /var/lib/cassandra is 11G on this, but there is also report
that 1.7G also see the same.
data was previously populated from 0.7.4 cassandra
added debug logging, not sure how much this help (this is logged before the
exception.)
INFO [CompactionExecutor:2] 2011-04-21 17:21:31,588 CompactionManager.java
(line 534) Compacting Major:
[SSTableReader(path='/var/lib/cassandra/data/cfs/inode.path-f-10-Data.db'),
SSTableReader(path='/var/lib/cassandra/data/cfs/inode.path-f-7-Data.db'),
SSTableReader(path='/var/lib/cassandra/data/cfs/inode.path-f-6-Data.db'),
SSTableReader(path='/var/lib/cassandra/data/cfs/inode.path-f-8-Data.db'),
SSTableReader(path='/var/lib/cassandra/data/cfs/inode.path-f-9-Data.db')]
DEBUG [CompactionExecutor:2] 2011-04-21 17:21:31,588 SSTableReader.java (line
132) index size for bloom filter calc for file :
/var/lib/cassandra/data/cfs/inode.path-f-10-Data.db : 256
DEBUG [CompactionExecutor:2] 2011-04-21 17:21:31,588 SSTableReader.java (line
132) index size for bloom filter calc for file :
/var/lib/cassandra/data/cfs/inode.path-f-7-Data.db : 512
DEBUG [CompactionExecutor:2] 2011-04-21 17:21:31,588 SSTableReader.java (line
132) index size for bloom filter calc for file :
/var/lib/cassandra/data/cfs/inode.path-f-6-Data.db : 768
DEBUG [CompactionExecutor:2] 2011-04-21 17:21:31,589 SSTableReader.java (line
132) index size for bloom filter calc for file :
/var/lib/cassandra/data/cfs/inode.path-f-8-Data.db : 1024
DEBUG [CompactionExecutor:2] 2011-04-21 17:21:31,589 SSTableReader.java (line
132) index size for bloom filter calc for file :
/var/lib/cassandra/data/cfs/inode.path-f-9-Data.db : 1280
INFO [CompactionExecutor:2] 2011-04-21 17:21:31,609 CompactionIterator.java
(line 185) Major@1181554512(cfs, inode.path, 523/10895) now compacting at 16777
bytes/ms.
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