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Posted to issues@hbase.apache.org by "Michael Stack (Jira)" <ji...@apache.org> on 2020/02/04 20:35:00 UTC

[jira] [Commented] (HBASE-23789) [Flakey Tests] ERROR [Time-limited test] balancer.HeterogeneousRegionCountCostFunction(199): cannot read rules file located at ' /tmp/hbase-balancer.rules '

    [ https://issues.apache.org/jira/browse/HBASE-23789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17030110#comment-17030110 ] 

Michael Stack commented on HBASE-23789:
---------------------------------------

Redid the persistence of the balancer plan so it used the test data dir rather than tmp to avoid clashes in test runs.

> [Flakey Tests] ERROR [Time-limited test] balancer.HeterogeneousRegionCountCostFunction(199): cannot read rules file located at ' /tmp/hbase-balancer.rules '
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-23789
>                 URL: https://issues.apache.org/jira/browse/HBASE-23789
>             Project: HBase
>          Issue Type: Bug
>          Components: flakies
>            Reporter: Michael Stack
>            Priority: Major
>
> We can't find the balancer rules we just read in the HeterogeneousRegionCountCostFunction test in high load conditions
> {code}
>  2020-02-03 20:51:00,774 ERROR [Time-limited test] balancer.HeterogeneousRegionCountCostFunction(199): cannot read rules file located at ' /tmp/hbase-balancer.rules ':File /tmp/hbase-balancer.rules does not exist
>  2020-02-03 20:51:00,774 WARN  [Time-limited test] balancer.HeterogeneousRegionCountCostFunction(155): cannot load rules file, keeping latest rules file which has 1 rules
> {code}
> Test then goes on to fail with:
> {code} org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancerHeterogeneousCost.testOneGroup  Time elapsed: 15.223 s  <<< FAILURE!
>  junit.framework.AssertionFailedError: Host rs0 should be below 0.0%
>    at org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancerHeterogeneousCost.testWithCluster(TestStochasticLoadBalancerHeterogeneousCost.java:209)
>    at org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancerHeterogeneousCost.testHeterogeneousWithCluster(TestStochasticLoadBalancerHeterogeneousCost.java:160)
>    at org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancerHeterogeneousCost.testOneGroup(TestStochasticLoadBalancerHeterogeneousCost.java:102)
> {code}
> Instead, have tests write rules to local test dir.



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