[ https://issues.apache.org/jira/browse/CASSANDRA-6740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ryan McGuire updated CASSANDRA-6740: ------------------------------------ Reproduced In: 2.1 > Non-empty flush directory causes NPE on startup > ----------------------------------------------- > > Key: CASSANDRA-6740 > URL: https://issues.apache.org/jira/browse/CASSANDRA-6740 > Project: Cassandra > Issue Type: Bug > Reporter: Ryan McGuire > Priority: Minor > > With the changes in CASSANDRA-6357, there is now the case where someone may > want to start a fresh cluster on a machine that previously hosted one, clean > out the directories they are familiar with (eg, data_file_directories, > commitlog_directories) but fail to clean out the flush_directory. If they > don't clean that out, they will see this in the logs: > {code} > INFO [main] 2014-02-19 12:20:13,530 ColumnFamilyStore.java:281 - > Initializing system.IndexInfo > INFO [main] 2014-02-19 12:20:13,534 ColumnFamilyStore.java:281 - > Initializing system.peers > INFO [main] 2014-02-19 12:20:13,539 ColumnFamilyStore.java:281 - > Initializing system.local > ERROR [main] 2014-02-19 12:20:13,703 CassandraDaemon.java:458 - Exception > encountered during startup > java.lang.NullPointerException: null > at > org.apache.cassandra.utils.ByteBufferUtil.string(ByteBufferUtil.java:167) > ~[main/:na] > at > org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:39) > ~[main/:na] > at > org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:26) > ~[main/:na] > at > org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:66) > ~[main/:na] > at > org.apache.cassandra.cql3.UntypedResultSet$Row.getString(UntypedResultSet.java:150) > ~[main/:na] > at > org.apache.cassandra.config.CFMetaData.fromSchemaNoTriggers(CFMetaData.java:1761) > ~[main/:na] > at > org.apache.cassandra.config.CFMetaData.fromSchema(CFMetaData.java:1883) > ~[main/:na] > at > org.apache.cassandra.config.KSMetaData.deserializeColumnFamilies(KSMetaData.java:320) > ~[main/:na] > at > org.apache.cassandra.config.KSMetaData.fromSchema(KSMetaData.java:301) > ~[main/:na] > at > org.apache.cassandra.db.DefsTables.loadFromKeyspace(DefsTables.java:131) > ~[main/:na] > at > org.apache.cassandra.config.DatabaseDescriptor.loadSchemas(DatabaseDescriptor.java:539) > ~[main/:na] > at > org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:230) > [main/:na] > at > org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:441) > [main/:na] > at > org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:530) > [main/:na] > {code} > I suggest a better warning message telling them it's due to the unclean flush > dir, instead of an NPE. -- This message was sent by Atlassian JIRA (v6.1.5#6160)