Robbie Strickland created CASSANDRA-10497:
---------------------------------------------

             Summary: 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 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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