Andrew Wang created HADOOP-13632:
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Summary: Daemonization does not check process liveness before
renicing
Key: HADOOP-13632
URL: https://issues.apache.org/jira/browse/HADOOP-13632
Project: Hadoop Common
Issue Type: Bug
Components: scripts
Affects Versions: 3.0.0-alpha1
Reporter: Andrew Wang
If you try to daemonize a process that is incorrectly configured, it will die
quite quickly. However, the daemonization function will still try to renice it
even if it's down, leading to something like this for my namenode:
{noformat}
-> % bin/hdfs --daemon start namenode
ERROR: Cannot set priority of namenode process 12036
{noformat}
It'd be more user-friendly instead of this renice error, we said that the
process couldn't be started.
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