[ 
https://issues.apache.org/jira/browse/CASSANDRA-10497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Robbie Strickland updated CASSANDRA-10497:
------------------------------------------
    Description: 
After stopping the node and running {{sstablesplit}} on a single table, 
restarting Cassandra results in an NPE:

{noformat}
INFO  [SSTableBatchOpen:2] 2015-10-09 13:15:38,745 SSTableReader.java:471 - 
Opening 
/var/lib/cassandra/xvdd/data/system/schema_keyspaces-b0f2235744583cdb9631c43e59ce3676/system-schema_keyspaces-ka-514
 (175 bytes)
INFO  [main] 2015-10-09 13:15:38,747 AutoSavingCache.java:146 - reading saved 
cache 
/var/lib/cassandra/xvdb/cache/system-schema_keyspaces-b0f2235744583cdb9631c43e59ce3676-KeyCache-b.db
ERROR [main] 2015-10-09 13:15:39,114 CassandraDaemon.java:541 - Exception 
encountered during startup
org.apache.cassandra.io.FSReadError: java.lang.NullPointerException
        at 
org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:641)
 ~[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        at 
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:302) 
[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        at 
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:524) 
[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        at 
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:613) 
[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
Caused by: java.lang.NullPointerException: null
        at 
org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:633)
 ~[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        ... 3 common frames omitted
{noformat}

  was:
After running {{sstablesplit}} on a single table, restarting Cassandra results 
in an NPE:

{noformat}
INFO  [SSTableBatchOpen:2] 2015-10-09 13:15:38,745 SSTableReader.java:471 - 
Opening 
/var/lib/cassandra/xvdd/data/system/schema_keyspaces-b0f2235744583cdb9631c43e59ce3676/system-schema_keyspaces-ka-514
 (175 bytes)
INFO  [main] 2015-10-09 13:15:38,747 AutoSavingCache.java:146 - reading saved 
cache 
/var/lib/cassandra/xvdb/cache/system-schema_keyspaces-b0f2235744583cdb9631c43e59ce3676-KeyCache-b.db
ERROR [main] 2015-10-09 13:15:39,114 CassandraDaemon.java:541 - Exception 
encountered during startup
org.apache.cassandra.io.FSReadError: java.lang.NullPointerException
        at 
org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:641)
 ~[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        at 
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:302) 
[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        at 
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:524) 
[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        at 
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:613) 
[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
Caused by: java.lang.NullPointerException: null
        at 
org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:633)
 ~[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
        ... 3 common frames omitted
{noformat}


> NPE on removeUnfinishedCompactionLeftovers after sstablesplit
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-10497
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10497
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core, Tools
>         Environment: Ubuntu 14.04
>            Reporter: Robbie Strickland
>         Attachments: npe_system.log
>
>
> After stopping the node and running {{sstablesplit}} on a single table, 
> restarting Cassandra results in an NPE:
> {noformat}
> INFO  [SSTableBatchOpen:2] 2015-10-09 13:15:38,745 SSTableReader.java:471 - 
> Opening 
> /var/lib/cassandra/xvdd/data/system/schema_keyspaces-b0f2235744583cdb9631c43e59ce3676/system-schema_keyspaces-ka-514
>  (175 bytes)
> INFO  [main] 2015-10-09 13:15:38,747 AutoSavingCache.java:146 - reading saved 
> cache 
> /var/lib/cassandra/xvdb/cache/system-schema_keyspaces-b0f2235744583cdb9631c43e59ce3676-KeyCache-b.db
> ERROR [main] 2015-10-09 13:15:39,114 CassandraDaemon.java:541 - Exception 
> encountered during startup
> org.apache.cassandra.io.FSReadError: java.lang.NullPointerException
>         at 
> org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:641)
>  ~[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
>         at 
> org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:302) 
> [apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
>         at 
> org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:524)
>  [apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
>         at 
> org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:613) 
> [apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
> Caused by: java.lang.NullPointerException: null
>         at 
> org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:633)
>  ~[apache-cassandra-2.1.7-SNAPSHOT.jar:2.1.7-SNAPSHOT]
>         ... 3 common frames omitted
> {noformat}



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