You mentioned the udp_send_channel configuration but did you set up the udp_recv_channel? Gmond has to be able to listen to itself as well as everybody else in order to collect the metrics that will be reported to gmetad.
Brad >>> On 6/30/2009 at 12:46 AM, in message <93f24cb40b05984b8c87edfe5773374d3caa95b...@lonmc01010.rbsres07.net>, <[email protected]> wrote: > All, > > Sorry to bump this, but does anyone have any ideas on a solution for this ? > > Regards, > > Wayne Pascoe > RBS Global Banking & Markets > Office: +44 20 3361 9571 | Mobile: +44 7799 707450 > > >> -----Original Message----- >> From: PASCOE, Wayne, GBM >> Sent: 26 June 2009 11:24 >> To: [email protected] >> Subject: Re: [Ganglia-general] No rrd file being created for metrics > > Thanks for your reply - hopefully this will clarify the > missing bits of information. > >> > -----Original Message----- >> > >> > Your email is missing some relevant information. gmond >> doesn't store >> > metrics into RRD files, it only makes the metric >> information available >> > via XML. gmetad is the process that gets these metrics (from gmond >> > nodes) and stores them on RRD files on disk. You seem to >> be debugging >> > under the assumption that your problem is that the collector gmond >> > isn't getting the metrics from the other gmond, but you >> haven't given >> > us information to indicate that you've verified that. > > To clarify, I will call our regular collecter 'BoxA' and the > host with the disk metrics 'WinBox'. BoxA is a Linux host > running Ganglia 3.0.7 and WinBox is a windows host running > Ganglia 3.0.7 > > When I setup WinBox as my cluster collector node in gmetad, > all of the metrics that I expect to be present are there and > RRD files are created for them. > > They are only missing if I configure WinBox to send to BoxA > and setup BoxA as my collecter in gmetad.conf > > Working config: > > WinBox gmond.conf > udp_send_channel { > host = WinBox > port = 8649 > } > > gmetad.conf > data_source "My Cluster" WinBox.mydomain.com > > > Failing config: > > WinBox gmond.conf > udp_send_channel { > host = BoxA > port = 8649 > } > > BoxA gmond.conf > udp_send_channel { > host = BoxA > port = 8649 > } > > gmetad.conf > data_source "My Cluster" BoxA.mydomain.com > > >> > So: >> > - Can you look at the XML from your collector node (tcp port 8649) >> > and check if it's actually missing the metrics? > > The metrics are there, and appear in gmetad when using WinBox > as my collector. When WinBox is configured to send to itself > (see working configuration above), telnetting to 8469 on the > server shows those metrics are present. > > When I set BoxA to be the collecter and configure WinBox to > send to that, the metrics are NOT present when I telnet to BoxA 8649. > >> > - Is your gmetad polling the correct collector nodes? > > Yes, it is - in both scenarios, WinBox appears appears in the > collection in Gmetad > > At this point, it looks as if the data is missing when it is > sent to BoxA, the Linux collector. At this point, I cannot > see the metrics in the XML output any more, so it makes sense > that it never arrives at the gmetad host. > > On this basis, where do I go to investigate this further ? > > On BoxA, sbin/gmond -m does not include any of the metrics > that I am collecting on my Windows box and wish to appear in > my cluster - is this relevant ? Do these metrics have to be > supported by this gmond to be collected? If so, how can I > configure them, given that my earlier attempt to include them > caused gmond to fail with the following message: > > Unable to collect metric 'phys_disk_time' on this platform. Exiting. > > Thanks in advance for any assistance that anyone can give :) >> >> -- >> Wayne Pascoe >> RBS Global Banking & Markets >> Office: +44 20 3361 9571 | Mobile: +44 7799 707450 > >> _______________________________________________ >> Ganglia-general mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/ganglia-general >> > > **************************************************************************** > ******* > The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered > Office: 36 St Andrew Square, Edinburgh EH2 2YB. > Authorised and regulated by the Financial Services Authority. > > This e-mail message is confidential and for use by the > addressee only. 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