>>> On 11/3/2008 at 1:15 PM, in message <[EMAIL PROTECTED]>,
Kostas Georgiou <[EMAIL PROTECTED]> wrote:
> On Mon, Nov 03, 2008 at 01:29:50PM -0500, Ofer Inbar wrote:
>
>> Oh, one more thing: I can see on the Ganglia graph for that host that
>> just before it "froze", system CPU went to 100% very suddenly - one
>> sample was normal, with user ~15% and system ~8%, and the next sample
>> it was all system CPU. It stayed that way for about 3-4 minutes before
>> Ganglia stopped recording metrics.
>>
>> I don't think this was gmond's fault necessarily, but it may have been
>> the situation that caused gmond to get into the frozen state.
>
> I had a look at the code and although the gmond.conf man page says that
> the default timeout for tcp_accept_channel is 1 sec in the code is set
> to -1 and connections can block forever.
>
> You can use the following in gmetad.conf to solve the problem.
>
> tcp_accept_channel {
> port = 8649
> timeout = 1000000
> }
>
> The following untested patch should also work I hope :)
> --- lib/libgmond.c-orig 2008-11-03 20:14:01.000000000 +0000
> +++ lib/libgmond.c 2008-11-03 20:14:12.000000000 +0000
> @@ -101,7 +101,7 @@
> CFG_INT("port", -1, CFGF_NONE ),
> CFG_STR("interface", NULL, CFGF_NONE),
> CFG_SEC("acl", acl_opts, CFGF_NONE),
> - CFG_INT("timeout", -1, CFGF_NONE),
> + CFG_INT("timeout", 1000000, CFGF_NONE),
> CFG_STR("family", "inet4", CFGF_NONE),
> CFG_END()
> };
>
If a timeout is set, then is the resulting XML output still good or did we lose
something because of the timeout?
Brad
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