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From Matthew Rathbone <matt...@foursquare.com>
Subject Re: Flume Master Issues
Date Fri, 26 Aug 2011 15:32:59 GMT
 You're right, there's another pid file there, that's crazy.

Have you experienced the unresponsiveness thing too? 

-- 
Matthew Rathbone
Foursquare | Software Engineer | Server Engineering Team
matthew@foursquare.com (mailto:matthew@foursquare.com) | @rathboma (http://twitter.com/rathboma)
| 4sq (http://foursquare.com/rathboma)



On Friday, August 26, 2011 at 10:17 AM, Mike wrote:

> I recall a similar problem I had with this.
> 
> It ended up being another pid-style file dropped somewhere else.
> 
> /var/run/flume/flume-flume-master.pid
> /tmp/flumemaster.pid
> 
> See if those are still around once all the flume procs are dead.
> 
> -M
> 
> On Fri, Aug 26, 2011 at 11:03 AM, Matthew Rathbone
> <matthew@foursquare.com (mailto:matthew@foursquare.com)> wrote:
> > Hey all,
> > We're having totally unpredictable issues with the flume master installation
> > lately, here's what happened to us last night / today:
> > YESTERDAY
> > Yesterday we added 8 new nodes to flume. They got set-up fine, and the
> > configs were registered.
> > a few hours later the master totally stops responding to anything
> > (web/shell/nodes), I don't find out until this morning.
> > TODAY
> > I try to stop it using the init script, that doesn't do anything, and it
> > continues to run, but be unresponsive
> > I kill -9 the flume processes, and remove the pid file, figuring I can just
> > start it again
> > now the master won't start "master already running on
> > pid=<non-existent-pid>"
> > when I finally get it to start (changing the pid directory), it starts being
> > unresponsive again
> > restart it, it does the same
> > stop all flume-nodes, restart it, looks good, start the flume nodes, it goes
> > unresponsive again
> > restart it, and this time it works
> > 
> > The only log above an INFO statement that I can see is this:
> > 2011-08-26 14:38:34,527 WARN com.cloudera.flume.agent.FlumeNode: Unable to
> > load output format plugin class - Class not found
> > but I don't think that's causing the issues.
> > 
> > I do have a flume-node running on the same machine, could there be some sort
> > of race condition happening?
> > Has anyone else seen behavior like this?
> > Any idea how to fix it?
> > Hoping someone can shed some light on this, I'm really not sure what's going
> > on.
> > Thanks all
> > --
> > Matthew Rathbone
> > Foursquare | Software Engineer | Server Engineering Team
> > matthew@foursquare.com (mailto:matthew@foursquare.com) | @rathboma | 4sq


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