Duncan Sands created CASSANDRA-7278: ---------------------------------------
Summary: NPE in StorageProxy.java:1920 Key: CASSANDRA-7278 URL: https://issues.apache.org/jira/browse/CASSANDRA-7278 Project: Cassandra Issue Type: Bug Components: Core Environment: Cassandra 2.07, x86-64 ubuntu 12.04 Reporter: Duncan Sands Priority: Minor Attachments: sl Got this this morning under heavy load: ERROR [ReadStage:128] 2014-05-21 07:59:03,274 CassandraDaemon.java (line 198) Exception in thread Thread[ReadStage:128,5,main] java.lang.RuntimeException: java.lang.NullPointerException at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1920) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: java.lang.NullPointerException at org.apache.cassandra.io.util.RandomAccessReader.getTotalBufferSize(RandomAccessReader.java:157) at org.apache.cassandra.io.compress.CompressedRandomAccessReader.getTotalBufferSize(CompressedRandomAccessReader.java:159) at org.apache.cassandra.service.FileCacheService.get(FileCacheService.java:96) at org.apache.cassandra.io.util.PoolingSegmentedFile.getSegment(PoolingSegmentedFile.java:36) at org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:1195) at org.apache.cassandra.db.columniterator.SimpleSliceReader.<init>(SimpleSliceReader.java:57) at org.apache.cassandra.db.columniterator.SSTableSliceIterator.createReader(SSTableSliceIterator.java:65) at org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:42) at org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:167) at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:62) at org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:250) at org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:53) at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1540) at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1369) at org.apache.cassandra.db.Keyspace.getRow(Keyspace.java:327) at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:65) at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1352) at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1916) ... 3 more There had just been a 20 second GC pause, and the system was dropping messages like mad, see attached log snippet. -- This message was sent by Atlassian JIRA (v6.2#6252)