Wang Hao created YARN-3059:
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Summary: RM web page can not display NM's health report which is
healthy
Key: YARN-3059
URL: https://issues.apache.org/jira/browse/YARN-3059
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 2.5.1
Reporter: Wang Hao
If the NM is healthy, it's health report can not display in RM web page.
In function reportHealthStatus of NodeHealthMonitorExecutor, I found that if
the HealthCheckerExitStatus is successful, the output was set to a empty string
in function setHealthStatus.
so，I change the code “setHealthStatus(true, "", now)” to
“setHealthStatus(true,shexec.getOutput(), now)” . Then, the RM web page can
display the NM's health report.
Maybe set the output to a empty string can decrease the data that transfer
ed between RM and NM. But I think we want to see the health report of NM in
some cases.
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