JianwenSun created CASSANDRA-13242:
--------------------------------------

             Summary: Null Pointer Exception when upgrading from 2.1.13 to 3.9
                 Key: CASSANDRA-13242
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13242
             Project: Cassandra
          Issue Type: Bug
            Reporter: JianwenSun


We get an error during startup, when upgrade from 2.1.13 to 3.9 similar with 
CASSANDRA-11008.  help plz.

INFO  09:44:54 Migrating legacy hints to new storage
INFO  09:44:54 Forcing a major compaction of system.hints table
INFO  09:44:54 Writing legacy hints to the new storage
Exception (java.lang.NullPointerException) encountered during startup: null
java.lang.NullPointerException
        at 
org.apache.cassandra.serializers.Int32Serializer.deserialize(Int32Serializer.java:31)
        at 
org.apache.cassandra.serializers.Int32Serializer.deserialize(Int32Serializer.java:25)
        at 
org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:115)
        at 
org.apache.cassandra.cql3.UntypedResultSet$Row.getInt(UntypedResultSet.java:288)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.convertLegacyHint(LegacyHintsMigrator.java:197)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHintsInternal(LegacyHintsMigrator.java:175)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:158)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:151)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:142)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.lambda$migrateLegacyHints$1(LegacyHintsMigrator.java:128)
        at java.lang.Iterable.forEach(Iterable.java:75)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:128)
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrate(LegacyHintsMigrator.java:96)
        at 
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:334)
        at 
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:601)
        at 
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:730)
ERROR 09:44:54 Exception encountered during startup
java.lang.NullPointerException: null
        at 
org.apache.cassandra.serializers.Int32Serializer.deserialize(Int32Serializer.java:31)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.serializers.Int32Serializer.deserialize(Int32Serializer.java:25)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:115) 
~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.cql3.UntypedResultSet$Row.getInt(UntypedResultSet.java:288)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.convertLegacyHint(LegacyHintsMigrator.java:197)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHintsInternal(LegacyHintsMigrator.java:175)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:158)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:151)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:142)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.lambda$migrateLegacyHints$1(LegacyHintsMigrator.java:128)
 ~[apache-cassandra-3.9.jar:3.9]
        at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_121]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrateLegacyHints(LegacyHintsMigrator.java:128)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.hints.LegacyHintsMigrator.migrate(LegacyHintsMigrator.java:96)
 ~[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:334) 
[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:601) 
[apache-cassandra-3.9.jar:3.9]
        at 
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:730) 
[apache-cassandra-3.9.jar:3.9]



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