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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