[CASSANDRA-12424] Assertion failure in ViewUpdateGenerator

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Duplicate
• Severity: Normal
• Since Version: 3.7
• Assignee: Unassigned
• Reporter: Keith Wansbrough
• Created: 10/Aug/16 10:35
• Updated: 16/Apr/19 09:30
• Resolved: 01/Sep/16 14:38

Description

Using released apache-cassandra-3.7.0, we have managed to get a node into a state where it won't start up. The exception is java.lang.AssertionError: We shouldn't have got there is the base row had no associated entry and it appears in ViewUpdateGenerator.computeLivenessInfoForEntry(ViewUpdateGenerator.java:455).

I still have the offending node; what diags/data would be useful for diagnosis? I've attached the full cassandra.log. In summary, cassandra.log contains multiple instances of the following when replaying the commit log on startup, leading ultimately to failure to start up.

ERROR 15:24:17 Unknown exception caught while attempting to update MaterializedView! edison.scs_subscriber
java.lang.AssertionError: We shouldn't have got there is the base row had no associated entry
        at org.apache.cassandra.db.view.ViewUpdateGenerator.computeLivenessInfoForEntry(ViewUpdateGenerator.java:455) ~[apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.view.ViewUpdateGenerator.updateEntry(ViewUpdateGenerator.java:273) ~[apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.view.ViewUpdateGenerator.addBaseTableUpdate(ViewUpdateGenerator.java:127) ~[apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.view.TableViews.addToViewUpdateGenerators(TableViews.java:403) ~[apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.view.TableViews.generateViewUpdates(TableViews.java:236) ~[apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.view.TableViews.pushViewReplicaUpdates(TableViews.java:140) ~[apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.Keyspace.apply(Keyspace.java:514) [apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.Keyspace.applyFromCommitLog(Keyspace.java:409) [apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.db.commitlog.CommitLogReplayer$MutationInitiator$1.runMayThrow(CommitLogReplayer.java:152) [apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) [apache-cassandra-3.7.0.jar:3.7.0]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_91]
        at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164) [apache-cassandra-3.7.0.jar:3.7.0]
        at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-3.7.0.jar:3.7.0]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
WARN  15:24:17 Uncaught exception on thread Thread[SharedPool-Worker-4,5,main]: {}

and ultimately

ERROR 15:24:18 Exception encountered during startup
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.AssertionError: We shouldn't have got there is the base row had no associated entry

Issue Links

• duplicates: CASSANDRA-12247 AssertionError with MVs on updating a row that isn't indexed due to a null value