Allen Wittenauer commented on HADOOP-13717:

I think it's important to point out that this ...

bq. For a bit more context, we have some code that starts the balancer in the 
foreground, without a log4j.properties file or setting $HADOOP_LOG_DIR. 
verify_logdir then checks the default location ($HADOOP_HOME/logs), which is 
not writable, and fails.

... is an edge case.

Most users of hadoop almost certainly have a log4j.properties file and 
HADOOP_LOG_DIR is set somewhere writable at installation time.

> Shell scripts call hadoop_verify_logdir even when command is not started as 
> daemon
> ----------------------------------------------------------------------------------
>                 Key: HADOOP-13717
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13717
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Andrew Wang
> Issue found when working with the HDFS balancer.
> In {{hadoop_daemon_handler}}, it calls {{hadoop_verify_logdir}} even for the 
> "default" case which calls {{hadoop_start_daemon}}. {{daemon_outfile}} which 
> specifies the log location isn't even used here, since the command is being 
> started in the foreground.
> I think we can push the {{hadoop_verify_logdir}} call down into 
> {{hadoop_start_daemon_wrapper}} instead, which does use the outfile.

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