[jira] [Created] (PHOENIX-7033) NPE on initialization error in RecoveredReplicationSourceShipper

["Istvan Toth (Jira)" <ji...@apache.org>]

Istvan Toth created PHOENIX-7033:
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             Summary: NPE on initialization error in RecoveredReplicationSourceShipper
                 Key: PHOENIX-7033
                 URL: https://issues.apache.org/jira/browse/PHOENIX-7033
             Project: Phoenix
          Issue Type: New Feature
            Reporter: Istvan Toth


When we run into problems starting RecoveredReplicationSourceShipper, we try to stop the reader thread which we haven't initialized yet, resulting in an NPE.
{noformat}
ERROR org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Unexpected exception in redacted currentPath=hdfs://redacted
java.lang.NullPointerException
        at org.apache.hadoop.hbase.replication.regionserver.RecoveredReplicationSourceShipper.terminate(RecoveredReplicationSourceShipper.java:100)
        at org.apache.hadoop.hbase.replication.regionserver.RecoveredReplicationSourceShipper.getRecoveredQueueStartPos(RecoveredReplicationSourceShipper.java:87)
        at org.apache.hadoop.hbase.replication.regionserver.RecoveredReplicationSourceShipper.getStartPosition(RecoveredReplicationSourceShipper.java:62)
        at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.lambda$tryStartNewShipper$3(ReplicationSource.java:349)
        at java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1853)
        at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.tryStartNewShipper(ReplicationSource.java:341)
        at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.initialize(ReplicationSource.java:601)
        at java.lang.Thread.run(Thread.java:750)
{noformat}
A simple null check should fix this.



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