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https://issues.apache.org/jira/browse/HDDS-1353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16809998#comment-16809998
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Hudson commented on HDDS-1353:
------------------------------
FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #16351 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/16351/])
HDDS-1353 : Metrics scm_pipeline_metrics_num_pipeline_creation_failed
(nandakumar131: rev 993f36ee3341a32945ee54644fe8cc76065135a6)
* (add)
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/InsufficientDatanodesException.java
* (edit)
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/RatisPipelineProvider.java
* (edit)
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/pipeline/SCMPipelineManager.java
* (edit)
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/hdds/scm/pipeline/TestSCMPipelineManager.java
> Metrics scm_pipeline_metrics_num_pipeline_creation_failed keeps increasing
> because of BackgroundPipelineCreator
> ---------------------------------------------------------------------------------------------------------------
>
> Key: HDDS-1353
> URL: https://issues.apache.org/jira/browse/HDDS-1353
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Components: SCM
> Reporter: Elek, Marton
> Assignee: Aravindan Vijayan
> Priority: Minor
> Labels: newbie, pull-request-available
> Fix For: 0.5.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> There is a {{BackgroundPipelineCreator}} thread in SCM which runs in a fixed
> interval and tries to create pipelines. This BackgroundPipelineCreator uses
> {{IOException}} as exit criteria (no more pipelines can be created). In each
> run of BackgroundPipelineCreator we exit when we are not able to create any
> more pipelines, i.e. when we get IOException while trying to create the
> pipeline. This means that
> {{scm_pipeline_metrics_num_pipeline_creation_failed}} value will get
> incremented in each run of BackgroundPipelineCreator.
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