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From "Robert Nettleton (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-9227) ambari-server startup with non-root user causes a ulimit error Operation not permitted.
Date Tue, 14 Jul 2015 14:41:09 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-9227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Nettleton updated AMBARI-9227:
-------------------------------------
    Fix Version/s:     (was: 2.1.0)
                   2.1.1

> ambari-server startup with non-root user causes a ulimit error Operation not permitted.
> ---------------------------------------------------------------------------------------
>
>                 Key: AMBARI-9227
>                 URL: https://issues.apache.org/jira/browse/AMBARI-9227
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>            Reporter: jun aoki
>            Priority: Minor
>             Fix For: 2.1.1
>
>
> When you are starting ambari-server with non-root users (you can set so during amari-server
setup (1)), it attempts to modify ulimit -n (the max open files to ) 10000 by default, you
get a permission error. (2)
> Bad thing is the server process is started "successfully" without actually effecting
the max number of open file descriptor. (some non user friendly error is shown though)
> Our customers tend to run applications with an non-root user so we'd like to clean up
here a bit.
> The challenge is, ulimit is a bash command like 'cd', and only root can execute. See
(3) to find ulimit behavior.
> My possible solution is 
> 1. if root user, do the current behavior
> 2. if non-root, then the startup checks ulimit -a and if the current max number meets
the requirement, if it does not meet, the server startup halts. End users have to fix through
limits.conf.
> Let me know if this works.
> (1) setup to customize ambari daemon user
> {code}
> bash-4.1# ambari-server setup
> Using python  /usr/bin/python2.6
> Setup ambari-server
> Checking SELinux...
> SELinux status is 'disabled'
> Customize user account for ambari-server daemon [y/n] (n)? y
> Enter user account for ambari-server daemon (root):pivotal
> {code}
> (2) permission error
> {code}
> bash-4.1# ambari-server start
> Using python  /usr/bin/python2.6
> Starting ambari-server
> Ambari Server running with 'root' privileges.
> Organizing resource files at /var/lib/ambari-server/resources...
> Server PID at: /var/run/ambari-server/ambari-server.pid
> Server out at: /var/log/ambari-server/ambari-server.out
> Server log at: /var/log/ambari-server/ambari-server.log
> Waiting for server start....sh: line 0: ulimit: open files: cannot modify limit: Operation
not permitted
> ................
> Ambari Server 'start' completed successfully.
> {code}
> (3)
> {code}
> [root@node1 init.d]# where ulimit
> -bash: where: command not found
> [root@node1 init.d]# sudo ulimit
> sudo: ulimit: command not found
> [root@node1 init.d]# ulimit
> unlimited
> {code}



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