[CASSANDRA-8740] java.lang.AssertionError when reading saved cache

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.0.15, 2.1.5

Environment

OEL 6.5, DSE 4.6.0, Cassandra 2.0.11.83

• Severity: Normal
• Assignee: David Brosius
• Reporter: Nikolai Grigoriev

Authors

David Brosius

Reviewers

Robert Stupp

• Created: 04/Feb/15 18:36
• Updated: 16/Apr/19 09:31
• Resolved: 31/Mar/15 09:24

Description

I have started seeing it recently. Not sure from which version but now it happens relatively often one some of my nodes.

 INFO [main] 2015-02-04 18:18:09,253 ColumnFamilyStore.java (line 249) Initializing duo_xxxxxxxxxxx
 INFO [main] 2015-02-04 18:18:09,254 AutoSavingCache.java (line 114) reading saved cache /var/lib/cassandra/saved_caches/duo_xxxxxxxxxxx-RowCach
e-b.db
ERROR [main] 2015-02-04 18:18:09,256 CassandraDaemon.java (line 513) Exception encountered during startup
java.lang.AssertionError
        at org.apache.cassandra.cache.SerializingCacheProvider$RowCacheSerializer.serialize(SerializingCacheProvider.java:41)
        at org.apache.cassandra.cache.SerializingCacheProvider$RowCacheSerializer.serialize(SerializingCacheProvider.java:37)
        at org.apache.cassandra.cache.SerializingCache.serialize(SerializingCache.java:118)
        at org.apache.cassandra.cache.SerializingCache.put(SerializingCache.java:177)
        at org.apache.cassandra.cache.InstrumentingCache.put(InstrumentingCache.java:44)
        at org.apache.cassandra.cache.AutoSavingCache.loadSaved(AutoSavingCache.java:130)
        at org.apache.cassandra.db.ColumnFamilyStore.initRowCache(ColumnFamilyStore.java:592)
        at org.apache.cassandra.db.Keyspace.open(Keyspace.java:119)
        at org.apache.cassandra.db.Keyspace.open(Keyspace.java:92)
        at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:305)
        at com.datastax.bdp.server.DseDaemon.setup(DseDaemon.java:419)
        at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:496)
        at com.datastax.bdp.server.DseDaemon.main(DseDaemon.java:659)
 INFO [Thread-2] 2015-02-04 18:18:09,259 DseDaemon.java (line 505) DSE shutting down...
ERROR [Thread-2] 2015-02-04 18:18:09,279 CassandraDaemon.java (line 199) Exception in thread Thread[Thread-2,5,main]
java.lang.AssertionError
        at org.apache.cassandra.gms.Gossiper.addLocalApplicationState(Gossiper.java:1274)
        at com.datastax.bdp.gms.DseState.setActiveStatus(DseState.java:171)
        at com.datastax.bdp.server.DseDaemon.stop(DseDaemon.java:506)
        at com.datastax.bdp.server.DseDaemon$1.run(DseDaemon.java:408)
 INFO [main] 2015-02-04 18:18:49,144 CassandraDaemon.java (line 135) Logging initialized
 INFO [main] 2015-02-04 18:18:49,169 DseDaemon.java (line 382) DSE version: 4.6.0

Cassandra version: 2.0.11.83 (DSE 4.6.0)

Looks like similar issues were reported and fixed in the past - like CASSANDRA-6325.

Maybe I am missing something, but I think that Cassandra should not crash and stop at startup if it cannot read a saved cache. This does not make the node inoperable and does not necessarily indicate a severe data corruption. I have applied a small change to my cluster config, restarted it and 30% of my nodes did not start because of that. Of course the solution is simple, but it requires to go to every node that failed to start, wipe the cache and start.