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From "Michael Wall (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-4389) ReplicationOperations().drain(..) may return too quickly
Date Wed, 03 Aug 2016 16:33:20 GMT


Michael Wall commented on ACCUMULO-4389:

Showed up in the error log from$accumulo-test/testReport/org.apache.accumulo.test.replication/MultiInstanceReplicationIT/dataReplicatedToCorrectTableWithoutDrain/
last night.  Capturing info here.

Error Message

Found no records in peer1 in the peer cluster

java.lang.AssertionError: Found no records in peer1 in the peer cluster
	at org.apache.accumulo.test.replication.MultiInstanceReplicationIT.dataReplicatedToCorrectTableWithoutDrain(

[~elserj] What do you think about moving this to 1.8.1?

> ReplicationOperations().drain(..) may return too quickly
> --------------------------------------------------------
>                 Key: ACCUMULO-4389
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Critical
>             Fix For: 1.7.3, 1.8.0
> Was taking a look at some logs from automated tests that [~romil.choksi] sent my way
and noticed that MultiInstanceReplicationIT was failing infrequently.
> Looking at the output, I can see that the call was returning very quickly (essentially
in the amount of time the RPC would take on the slow test hardware)
> {noformat}
> Drain completed in 25ms
> {noformat}
> Looking at the implementation of {{MasterClientServiceHandler.drainReplicationTable(...)}},
it's not handling the references we read from the metadata table correctly. I believe this
is causing the test to return too quickly.

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