[Xymon] Using --no-cache

[Stewart, Tom L.]

I am using the --no-cache but I still get holes. Seems to be related to
Solaris 10 systems on both sparc and x86 and are totally random. I have
included a picture of one of the systems that does not even have a heavy
load from over the weekend. The only graphs that are affected are: "CPU
Load" and "Users and Processes".


Here are the log files from the last restart with nothing from the
weekend.

[root at xxxxx log]# cat rrd-data.log 
2011-03-24 13:28:41 Tried to down BOARDBUSY: Invalid argument
2011-03-24 13:28:41 Peer not up, flushing message queue
2011-03-24 13:28:41 Shutting down, flushing cached updates to disk
2011-03-24 13:28:41 Cache flush completed
2011-03-24 13:28:56 Peer not up, flushing message queue

[root at xxxxx log]# cat rrd-status.log 
2011-03-24 13:28:41 Tried to down BOARDBUSY: Invalid argument
2011-03-24 13:28:41 Peer not up, flushing message queue
2011-03-24 13:28:41 Shutting down, flushing cached updates to disk
2011-03-24 13:28:41 Cache flush completed
2011-03-24 13:28:56 Peer not up, flushing message queue

I did see some improvement when I added more memory for the following
based on error messages from xymond.

xymonserver.cfg:MAXMSG_CLIENT=2048             # added more by Tom S
xymonserver.cfg:MAXMSG_DATA=2048                # added more by Tom S
xymonserver.cfg:MAXMSG_STATUS=2048              # added more by Tom S
xymonserver.cfg:MAXMSG_NOTES=2048              # added more by Tom S
xymonserver.cfg:MAXMSG_USER=2048               # added more by Tom S

The server is RHEL6 64-bit:
[root at xxxxx etc]# uname -a
Linux xxxx 2.6.32-71.18.1.el6.x86_64 #1 SMP Wed Feb 2 17:49:59 EST 2011
x86_64 x86_64 x86_64 GNU/Linux

The only other item is that the clients are still using 4.2.3, but I
don't think that would make a difference ??

Tom


-----Original Message-----
From: xymon-bounces at xymon.com [mailto:xymon-bounces at xymon.com] On Behalf
Of henrik at hswn.dk
Sent: Monday, March 28, 2011 7:28 AM
To: xymon at xymon.com
Subject: Re: [Xymon] Using --no-cache

On Thu, 17 Mar 2011 15:28:34 -0500, "Stewart, Tom L."
<Tom.Stewart at landsend.com> wrote:
> On 4.3.0 has the -no-cache been taken out for the rrd daemons?   I
have
> been having issues in testing where I am getting missing data for 5-15
> minutes at random times. 

"xymond_rrd --no-cache" should work fine.

Are you seeing any errors in the rrd-status.log or rrd-data.log files ?


Regards,
Henrik

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