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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9318) when exiting on a signal, print the signal name first
Date Wed, 13 Mar 2013 17:22:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13601384#comment-13601384
] 

Colin Patrick McCabe commented on HADOOP-9318:
----------------------------------------------

bq. unless different actions need to be taken for each signal

at the end of our signal handler, we have to call the previous signal handler for that signal.
 This will be different for each signal.
                
> when exiting on a signal, print the signal name first
> -----------------------------------------------------
>
>                 Key: HADOOP-9318
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9318
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.0.5-beta
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HADOOP-9318.001.patch, HADOOP-9318.002.patch, HADOOP-9318.003.patch
>
>
> On UNIX, it would be nice to know when a Hadoop daemon had exited on a signal.  For example,
if a daemon exited because the system administrator sent SIGTERM (i.e. {{killall java}}),
it would be nice to know that.  Although some of this can be deduced from context and {{SHUTDOWN_MSG}},
it would be nice to have it be explicit.

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