[GitHub] [hadoop-ozone] elek opened a new pull request #299: HDDS-2071. Support filters in ozone insight point

[GitBox <gi...@apache.org>]

elek opened a new pull request #299: HDDS-2071. Support filters in ozone insight point
URL: https://github.com/apache/hadoop-ozone/pull/299
 
 
   ## What changes were proposed in this pull request?
   
   Wit the first implementation of ozone insight tool we had a demo insight-point to debug Ratis pipelines. It was not stable enough to include in the first patch, this patch is about fixing it.
   
   The goal is to implement a new insight point (eg. datanode.pipeline) which can show information about one pipeline.
   
   It can be done with retrieving the hosts of the pipeline and generate the loggers metrics (InsightPoint.getRelatedLoggers and InsightPoint.getMetrics) based on the pipeline information (same loggers should be displayed from all the three datanodes.
   
   The pipeline id can be defined as a filter parameter which (in this case) should be required.
   
   ## What is the link to the Apache JIRA
   
   https://issues.apache.org/jira/browse/HDDS-2070
   
   ## How was this patch tested?
   
    1. Start a docker-compose cluster with three datanodes.
    2. Get the id of the Ratis/THREE pipeline: `ozone scmcli pipeline list | grep THREE`
    3. Check the logs of this specific pipeline: `ozone insight logs -v -f=pipeline=1e0dce39-98fe-43b9-b8fe-68fd003f321f datanode.pipeline`

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