[jira] [Created] (ACCUMULO-2227) Concurrent randomwalk fails when namenode dies after bulk import step

["Bill Havanki (JIRA)" <ji...@apache.org>]

Bill Havanki created ACCUMULO-2227:
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             Summary: Concurrent randomwalk fails when namenode dies after bulk import step
                 Key: ACCUMULO-2227
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2227
             Project: Accumulo
          Issue Type: Bug
          Components: test
    Affects Versions: 1.4.4
            Reporter: Bill Havanki


Running Concurrent randomwalk under HDFS HA, if the active namenode is killed:

{noformat}
20 12:27:51,119 [retry.RetryInvocationHandler] WARN : Exception while invoking class org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.delete. Not retrying because the invoked method is not idempotent, and unable to determine whether it was invoked
java.io.IOException: Failed on local exception: java.io.IOException: Response is null.; Host Details : local host is: "slave.domain.com/10.20.200.113"; destination host is: "namenode.domain.com":8020;
...
 at org.apache.hadoop.hdfs.DFSClient.delete(DFSClient.java:1487)
at org.apache.hadoop.hdfs.DistributedFileSystem.delete(DistributedFileSystem.java:355)
at org.apache.accumulo.server.test.randomwalk.concurrent.BulkImport.visit(BulkImport.java:140)
...
Caused by: java.io.IOException: Response is null.
at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:952)
at org.apache.hadoop.ipc.Client$Connection.run(Client.java:847)
{noformat}

This arises from an HDFS path delete call that cleans up from the bulk import. The test should be resilient here (and when the paths are made earlier in the test) so that the test can continue once failover has completed.



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