Errr, my mistake. I need to forward the XML port, not the interactive
port. After forwarding 8651 all works fine!
Regards,
Erich
Am 22.07.2014 15:44, schrieb Erich Focht:
> Hello,
>
> I am having similar issues.
>
> A gmetad is running on another host, monitoring a cluster. Its grid name
> is "GangliaGrid". I created a gmetad.conf on my laptop, with a tunnel to
> the remote host, forwarding its XML port (8652) to the localhost:8666.
> Telnet to localhost 8666 shows that the remote gmetad answers fine to
> queries like "/"...
>
> The local gmetad (on the laptop) uses in its conf:
>
> debug_level 1
> setuid off
> gridname "LocalGrid"
> data_source "GangliaGrid" localhost:8666
> trusted_hosts 127.0.0.1
> xml_port 18651
> interactive_port 18652
> rrd_rootdir rrds
>
> Unfortunately I see only timeouts.
>
> Sources are ...
> Source: [GangliaGrid, step 15] has 1 sources
> 127.0.0.1
> Data thread 140659923203840 is monitoring [GangliaGrid] data source
> 127.0.0.1
> poll() timeout from source 0 for [GangliaGrid] data source after 0 bytes
> read
>
>
> If I use the same ganglia grid name in both gmetad's, gmetad dies
> immediately.
>
>
> Any idea what's going on?
>
> Best regards,
> Erich
>
>
>
>
>
>
> Am 23.06.2014 19:13, schrieb Rushton Martin:
>> I've just updated to ganglia 3.6.0 and am trying to get a "grid of
>> grids" configuration working. I started with the original grid which is
>> visible through gweb. I built a new gmetad.conf for the new grid and
>> that works fine when viewed from a new instance of gweb. The new grid
>> uses port 8655 for XML and 8656 for queries. Using telnet to dump the
>> XML also works fine and there are no obvious structural differences
>> between it and the output from the original gmetad. However, when I add
>> the line:
>>
>> data_source "Management" localhost:8655
>>
>> to the master gmetad, not only do I see no output but I see repeated
>> error messages in /var/log/messages:
>>
>> Process XML (Management): XML_ParseBuffer() error at line 1: no
>> element found
>>
>> I tried scanning the archives and saw similar (but not identical) errors
>> reported from a few years ago. I gather there was a known bug in gmetad
>> that caused inputs from other gmetads to be rejected. So:
>>
>> 1) Is the bug still there?
>> 2) Is there a work around?
>> 3) Have I misconfigured it?
>>
>> Any advice gratefully received.
>
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