[ 
https://issues.apache.org/jira/browse/KAFKA-3384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15213700#comment-15213700
 ] 

ASF GitHub Bot commented on KAFKA-3384:
---------------------------------------

GitHub user matthewlmcclure opened a pull request:

    https://github.com/apache/kafka/pull/1148

    Conform to POSIX kill usage

    I believe this addresses KAFKA-3384.
    
    The POSIX kill manpage is at 
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/kill.html

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/matthewlmcclure/kafka KAFKA-3384

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/kafka/pull/1148.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1148
    
----
commit 8662f0dde8d920cdf59d2e4a425a0b5eab976082
Author: Matt McClure <m...@aya.yale.edu>
Date:   2016-03-28T01:03:43Z

    Conform to POSIX kill usage
    
    The POSIX kill manpage is at 
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/kill.html

commit 9251cd2057c5019fa9117502091a349d8c665877
Author: Matt McClure <m...@aya.yale.edu>
Date:   2016-03-28T01:05:40Z

    Conform to POSIX kill usage
    
    The POSIX kill manpage is at 
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/kill.html

----


> bin scripts may not be portable/POSIX compliant
> -----------------------------------------------
>
>                 Key: KAFKA-3384
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3384
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.9.0.1
>            Reporter: Ewen Cheslack-Postava
>            Assignee: Ewen Cheslack-Postava
>             Fix For: 0.10.1.0
>
>
> We may be using some important tools in a non-POSIX compliant and 
> non-portable way. In particular, we've discovered that we can sometimes 
> trigger this error:
> /usr/bin/kafka-server-stop: line 22: kill: SIGTERM: invalid signal 
> specification
> which looks like it is caused by invoking a command like {{kill -SIGTERM 
> <pid>}}. (This is a lightly modified version of {{kafka-server-stop.sh}}, but 
> nothing of relevance has been affected.)
> Googling seems to suggest that passing the signal in that way is not 
> compliant -- it's a shell extensions. We're using {{/bin/sh}}, but that may 
> be aliased to other more liberal shells on some platforms. To be honest, I'm 
> not sure exactly the requirements for triggering this since running the 
> command directly on the same host via an interactive shell still works, but 
> we are definitely limiting portability using the current approach.
> There are a couple of possible solutions:
> 1. Standardize on bash. This lets us make more permissive wrt shell features 
> that we use. We're already using /bin/bash in the majority of scripts anyway. 
> Might help us avoid a bunch of assumptions people make when bash is aliased 
> to sh: https://wiki.ubuntu.com/DashAsBinSh
> 2. Try to clean up scripts as we discover incompatibilities. The immediate 
> fix for this issue seems to be to use {{kill -s TERM}} instead of {{kill 
> -SIGTERM}}.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to