[jira] [Resolved] (SAMZA-641) YARN fails to start

["Jakob Homan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SAMZA-641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jakob Homan resolved SAMZA-641.
-------------------------------
    Resolution: Not A Problem

> YARN fails to start
> -------------------
>
>                 Key: SAMZA-641
>                 URL: https://issues.apache.org/jira/browse/SAMZA-641
>             Project: Samza
>          Issue Type: Bug
>          Components: hello-samza
>            Reporter: Ryan Oblak
>
> I followed the ["Get the Code" instructions|http://samza.apache.org/startup/hello-samza/latest/], but when I tried to run {{bin/grid bootstrap}} I received errors:
> {code}
> EXECUTING: start yarn
> mkdir: cannot create directory `/logs': Permission denied
> chown: cannot access `/logs': No such file or directory
> starting resourcemanager, logging to /logs/yarn-roblak-resourcemanager-roblak-ld1.out
> /home/roblak/workspace/hello-samza/deploy/yarn/sbin/yarn-daemon.sh: line 124: /logs/yarn-roblak-resourcemanager-roblak-ld1.out: No such file or directory
> head: cannot open `/logs/yarn-roblak-resourcemanager-roblak-ld1.out' for reading: No such file or directory
> /home/roblak/workspace/hello-samza/deploy/yarn/sbin/yarn-daemon.sh: line 129: /logs/yarn-roblak-resourcemanager-roblak-ld1.out: No such file or directory
> /home/roblak/workspace/hello-samza/deploy/yarn/sbin/yarn-daemon.sh: line 130: /logs/yarn-roblak-resourcemanager-roblak-ld1.out: No such file or directory
> {code}
> I'm unable to find any YARN-related processes:
> {code}
>  hello-samza git:(latest) ✗ ps aux | grep -i yarn
> roblak   30275  0.0  0.0 103252   888 pts/2    R+   10:59   0:00 grep --color=auto --exclude-dir=.bzr --exclude-dir=.cvs --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn -i yarn
>  hello-samza git:(latest) ✗ ps aux | grep -i resourcemanager          
> roblak     652  0.0  0.0 103252   876 pts/2    S+   11:16   0:00 grep --color=auto --exclude-dir=.bzr --exclude-dir=.cvs --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn -i resourcemanager
>  hello-samza git:(latest) ✗ ps aux | grep -i nodemanager    
> roblak     700  0.0  0.0 103252   880 pts/2    S+   11:16   0:00 grep --color=auto --exclude-dir=.bzr --exclude-dir=.cvs --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn -i nodemanager
> {code}
> And there's nothing at [http://localhost:8088|http://localhost:8088].
> Setting {{YARN_LOG_DIR}} makes the log errors go away but produces {{nice}} errors, and it still fails to start.
> {code}
> hello-samza git:(latest) ✗ YARN_LOG_DIR=$PWD/logs bin/grid start yarn
> EXECUTING: start yarn
> starting resourcemanager, logging to /home/roblak/workspace/hello-samza/logs/yarn-roblak-resourcemanager-roblak-ld1.out
> nice: /bin/yarn: No such file or directory
> starting nodemanager, logging to /home/roblak/workspace/hello-samza/logs/yarn-roblak-nodemanager-roblak-ld1.out
> nice: /bin/yarn: No such file or directory
> {code}
> I get the sense that if I ran {{bin/grid start yarn}} as root everything would work, but that doesn't seem appropriate nor should it be necessary to do so.
> I'll update this ticket if I find a solution :)



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