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https://issues.apache.org/jira/browse/ACCUMULO-4124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Newton resolved ACCUMULO-4124.
-----------------------------------
Resolution: Fixed
> integration tests that use map-reduce run under the yarn instance when using
> IntegrationTestMapReduce
> -----------------------------------------------------------------------------------------------------
>
> Key: ACCUMULO-4124
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4124
> Project: Accumulo
> Issue Type: Bug
> Components: test
> Environment: running integration tests as a map-reduce job on a small
> cluster
> Reporter: Eric Newton
> Assignee: Eric Newton
> Fix For: 1.8.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> While attempting to run the Integration Tests under a map-reduce job using
> the fat mrit jar, I found that all the InputFormat and OutputFormat tests
> were failing. Checking on the cluster, I saw that the ITs were kicking off
> new applications within the yarn cluster.
> There are several problems with this:
> 1) the cluster is busy running ITs, so it doesn't have resources to be the
> M/R infrastructure for a test
> 2) zookeeper is consistently started on localhost, and the sub-map jobs
> cannot reach the zookeeper on the host that started it
> 3) files prepared by the test do not exist in order for the test to run
> because it is running on another host
> This contributes to 15 of the 192 tests throwing unexpected exceptions. That
> is, they do not run to completion, either with test success, or test failure.
> They also create a long tail of timeout failures.
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