Erik,
You may be thinking of a recent problem discovered in zenprocess.
http://dev.zenoss.org/trac/ticket/1068
Todd,
Zenoss 1.1.1 already has the latest fix for working around a library bug
affecting the scalability of zencommand. You will want to make sure you
have patch01 for Twisted installed. If you are using the Zenoss RPMs,
or the appliance, this is done for you. If you are using SVN or a
source tarball you may have to clean zenossinst/build for this to be
installed.
That said, there are no known problems where zencommand has an
unnecessary time out. Please switch your server into debug mode, and
collect a log:
$ mv $ZENHOME/zencommand.log $ZENHOME/zencommand.log.bak
$ zencommand restart -v 10
Let zencommand run until you see the problem and send that log to us off
list (compressed).
Here's a possible explanation for the problem: ZenCommand will keep as
many as 256 SSH connections to remote hosts. Normally this is useful
because the setup for an SSH connection is quite high compared to the
execution of a little nagios pluggin over that connection. We have seen
intermediary firewalls not appreciate Zenoss' efforts at maintaining a
quiet SSH connection for 5 minutes. If you are confident that your
plugins are not SSH related, this is not your problem.
If you see any other related issues: memory usage or file-descriptor
limits that occur at the same time, that would also help.
Thanks!
-Eric
Erik A. Dahl wrote:
Eric,
Have we fixed this in the trunk?? I know its come up.
-EAD
On Mar 24, 2007, at 12:05 PM, Todd Davis wrote:
This might be related to some problems I've been reporting (and haven't
heard anything about).
I only have about 110 devices and only about 3 Nagios-type commands
running
(and some ssh commands). The issue I keep running into is the Nagios
commands time out quite often even though running them from the
command-line
returns almost immediately. After timing out, they usually clear
within 5
minutes.
--
Todd
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Allen Sanabria
Sent: Friday, March 23, 2007 2:55 PM
To: General discussion of using zenoss system
Subject: Re: [zenoss-users] Big trouble with zencommand
Hey David, I had this same issues last year, and how I solved it, was by
breaking down those 800 or so devices into multiple monitors.
and by doing that you will have to create new zencommand's
I created a how to a month or so back and someone else created a similar
how to a few days ago.
You are essentially creating another zencommand and putting it into
another monitor.
Reason for all this is to break down how many open files are running
simultaneously under on each monitor
here is essentially what I have been doing
Step 1
create new performance monitor
Step 2
I copied over bin/zenperfsnmp to bin/zenperfsnmp_netapp
contents of zenpersnmp_netapp
(I changed PRGNAME and CFGFILE)
PRGHOME=$ZENHOME/Products/ZenRRD
PRGNAME=zenperfsnmp_netapp.py
CFGFILE=$CFGDIR/zenperfsnmp_netapp.conf
PIDFILE=$VARDIR/$PRGNAME.pid
Step 3
then for /Products/ZenRRD/zenperfsnmp.py i just mad another copy if it
and renamed it to zenperfsnmp_netapp.py and made all instance of
zenperfsnmp point to this instead zenperfsnmp_netapp.
This will create its own log file.
Step 4
then in /bin/zenoss I added zenperfsnmp_netapp under zenperfsnmp
C="$C zenperfsnmp
C="$C zenperfsnmp_netapp"
step 5
copy over etc/zenperfsnmp.conf to etc/zenperfsnmp_netapp.conf
monitor NetApp
Step 6
restart zenoss
Step 7 add NetApps to the NetApp performance monitor
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