[Xymon] disk graph page limits total file systems

[EDSchminke at Hormel.com]

Ron,

Thanks for your reply... I find that unlikely for a number of reasons:

1) I'm seeing nothing in the xymon logs about messages being truncated
2) I can see the entire message on the xymon server, and the file systems
I'm expecting to see graphed are in the message but are not being
graphed... on the disk page
3) The file systems ARE graphed, but the graphs don't appear on the disk
page... all filesystems are appearing on the trends page.





JC (or anyone else)----

Could you suggest to me a way to run the portion that actually generates
that page in a debug mode so I can see whats happening?  As a command on a
terminal, for example?

Additional suggestions and questions are welcome!


Thanks,
Erik






Erik D. Schminke | Associate Systems Programmer
Hormel Foods Corporation | One Hormel Place | Austin, MN 55912
Phone: (507) 434-6817
edschminke at hormel.com | www.hormelfoods.com





From:	Ron Cohen <rcohen55 at gmail.com>
To:	EDSchminke at hormel.com
Date:	05/18/2016 03:59 PM
Subject:	Re: [Xymon] disk graph page limits total file systems



Maybe it's to do with the sending msg size?


On 18 May 2016 21:13, <EDSchminke at hormel.com> wrote:
  update: i upgraded v4.3.24 to v4.3.27.  this had no effect on my problem.
  85 filesystem "limit" still exists.

  Erik D. Schminke | Associate Systems Programmer
  Hormel Foods Corporation | One Hormel Place | Austin, MN 55912
  Phone: (507) 434-6817
  edschminke at hormel.com | www.hormelfoods.com





  From:   "J.C. Cleaver" <cleaver at terabithia.org>
  To:     EDSchminke at Hormel.com
  Cc:     "Xymon Mailing List" <xymon at xymon.com>
  Date:   05/17/2016 04:53 PM
  Subject:        Re: [Xymon] disk graph page limits total file systems



  On Tue, May 17, 2016 11:26 am, EDSchminke at Hormel.com wrote:
  >
  > I'm having some trouble with the disk graph pages for hosts that have
  > numerous file systems reporting in.  The limit seems to be 85.  There
  are
  > 5
  > file systems displayed on each graph and there are 17 graphs max on
  this
  > page.  If I view the trends page for those host, all of the missing
  > filesystems are graphed.  85 seems pretty arbitrary.
  >
  > I've gone through and cleaned up the RRD files from
  $XYMON/data/rrd/$HOST
  > that are "stale".  Cleaning some of these out, which would otherwise
  not
  > be
  > listed, permit the filesystems that were trimmed to then be listed on
  the
  > graph page.  Still, not all of the filesystems make it on the graphs.
  >
  > I searched the mail archive, and didn't find a solutions.  I found a
  > discussion of changing the [disk] section to [disk::10] for 10
  filesystems
  > per graph... that prevented the graphs from being generated at all.  My
  > thinking was, perhaps if i increase the number of filesystems per
  graph,
  > 17
  > graphs would be enough for this particular system.
  >
  > In any event, I'm wondering if this is a bug or a configurable.  It
  > actually works fine in a previous version of xymon. (v4.2.2 works,
  > v.4.3.24).  Thanks!
  >
  > Erik D. Schminke | Associate Systems Programmer
  > Hormel Foods Corporation | One Hormel Place | Austin, MN 55912
  > Phone: (507) 434-6817
  > edschminke at hormel.com | www.hormelfoods.com
  >

  Erik,

  85 isn't an intentional hard limit here. I've been scanning through the
  showgraph code and it seems like the reallocation should be able to
  continue as needed (whether not having a hard limit at all is a good idea
  is a separate question...). There's a reference to 16 arguments to
  rrd_graph, however that's a per-graph value and I don't believe it would
  affect the number here.

  A couple of next steps:
  - Can you increase to disk::6 or 7 and see if there's a point where the
  parsing of that number breaks?
  - Does it constantly die at the same partition being graphed?
  - Are there any errors coming out in /logs/ or the httpd error log, or
  core files left?
  - Are there any unusual file conditions in that directory?

  I'd definitely suggest upgrading to a new version for security purposes,
  but I don't think any fixes addressing this area specifically are
  present.

  There were a lot of changes between 4.2.2 and 4.3.x, so it's hard to say
  exactly what might be contributing there.


  HTH,
  -jc



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