[CASSANDRA-12706] Exception supposedly after ttl expires and compaction occurs

• Type: Bug
• Status: Resolved
• Priority: Urgent
• Resolution: Fixed
• Fix Version/s: 3.0.10, 3.10
• Component/s: Legacy/Local Write-Read Paths

Environment

Linux amd64 Amazon default AMI,
Java 1.8.0_122 oracle jdk

• Severity: Critical
• Since Version: 3.0.8
• Assignee: Stefania Alborghetti
• Reporter: Nikhil Sharma

Authors

Stefania Alborghetti

Reviewers

Swen Fuhrmann

• Created: 26/Sep/16 08:30
• Updated: 16/Apr/19 09:30
• Resolved: 04/Oct/16 01:21

Description

After TTL (1 week) expires and compaction occurs. We start seeing:

WARN [SharedPool-Worker-1] 2016-09-26 07:35:17,420 AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread Thread[SharedPool-Worker-1,5,main]: {}
java.lang.NullPointerException: null
at org.apache.cassandra.db.Slices$ArrayBackedSlices$ComponentOfSlice.isEQ(Slices.java:748) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.Slices$ArrayBackedSlices.toCQLString(Slices.java:659) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.filter.ClusteringIndexSliceFilter.toCQLString(ClusteringIndexSliceFilter.java:150) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.SinglePartitionReadCommand.appendCQLWhereClause(SinglePartitionReadCommand.java:911) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.ReadCommand.toCQLString(ReadCommand.java:560) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.ReadCommand$1MetricRecording.onClose(ReadCommand.java:506) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.transform.BasePartitions.runOnClose(BasePartitions.java:70) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.transform.BaseIterator.close(BaseIterator.java:76) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.ReadCommandVerbHandler.doVerb(ReadCommandVerbHandler.java:48) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:67) ~[apache-cassandra-3.0.9.jar:3.0.9]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_102]
at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:136) [apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-3.0.9.jar:3.0.9]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102]
WARN [SharedPool-Worker-3] 2016-09-26 07:35:31,247 AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread Thread[SharedPool-Worker-3,5,main]: {}
java.lang.RuntimeException: java.lang.NullPointerException
at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2470) ~[apache-cassandra-3.0.9.jar:3.0.9]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_102]
at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:136) [apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-3.0.9.jar:3.0.9]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_102]
Caused by: java.lang.NullPointerException: null
at org.apache.cassandra.db.Slices$ArrayBackedSlices$ComponentOfSlice.isEQ(Slices.java:748) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.Slices$ArrayBackedSlices.toCQLString(Slices.java:659) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.filter.ClusteringIndexSliceFilter.toCQLString(ClusteringIndexSliceFilter.java:150) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.SinglePartitionReadCommand.appendCQLWhereClause(SinglePartitionReadCommand.java:911) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.ReadCommand.toCQLString(ReadCommand.java:560) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.ReadCommand$1MetricRecording.onClose(ReadCommand.java:506) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.transform.BasePartitions.runOnClose(BasePartitions.java:70) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.db.transform.BaseIterator.close(BaseIterator.java:76) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1797) ~[apache-cassandra-3.0.9.jar:3.0.9]
at org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:2466) ~[apache-cassandra-3.0.9.jar:3.0.9]
... 5 common frames omitted

This results in queries failing on those tables (not always though, at first). The failures keep increasing, until total failure after a few days.

Issue Links

• duplicates: CASSANDRA-12976 NullPointerException in SharedPool-Worker