On Thu, Oct 30, 2008 at 12:18:07PM -0400, Lars Kellogg-Stedman wrote:
> Hello all,
> 
> I'm experiencing some odd problems with Ganglia (3.1.1, under CentOS
> 5).  Sometimes, gmond stops collecting data from remote hosts.

If you are using unicast and you restarted your collector (the gmond that
gmetad is pulling from) then you are running into a known issue with the way
that metadata is getting updated mentioned in the release notes :

  http://ganglia.wiki.sourceforge.net/ganglia_release_notes

The suggested configuration is to set "send_metadata_interval" to a non zero
value.

> Gmond merrily ignores the data.  It seems that restarting the *local*
> gmond does not correct the problem, but restarting the *remote*
> (sending) gmond does make things start working again.

because the metadata is resent.

Carlo

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