Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1

[Luca Maranzano]

Luca Maranzano [http://community.zenoss.org/people/liuk] created the discussion

"Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/62863#62863

--------------------------------------------------------------
After upgrading from Zenoss Core 2.5.1 to 3.2.1 on Ubuntu 8.04 64 bit we are experiencing several of these errors:

*Unable to read processes on device xxxxxx.mydomain.it; Timeout on device*

The monitored devices are tipically Linux or Solaris server monitored from Zenoss via SNMP.

Before the upgrade this issue was not present at all, so something has surely changed on the Zenoss side.

If I try to manually run from the zenoss server a command like this when the error occurs:

snmpwalk -v1 -c MYCOMMUNITY x.x.x.x system

I always get an almost instant response from the remote, so it is hard to say that the problem is on the remote side.

How can I trace down / debug this issue? I've hundreds of devices monitored and I'm getting crazy  :-)

TIA.
Regards,
Luca
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/62863#62863]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]

[Luca Maranzano]

Luca Maranzano [http://community.zenoss.org/people/liuk] created the discussion

"Re: Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/62897#62897

--------------------------------------------------------------
To mitigate this issue I've increased the following values in the Device Class ZProps:

zSnmpTimeout from 2.5 to 5
zSnmpTries from 2 to 4

Still unexplained to me why previous values have worked fine for 2 years with Zenoss 2.5.1.

HTH
Cheers,
Luca
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/62897#62897]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]

[Mike Pfeuffer]

Mike Pfeuffer [http://community.zenoss.org/people/pfeuffer] created the discussion

"Re: Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/63079#63079

--------------------------------------------------------------
I'm seeing this as well, and think I've sorted out what is going on.  The bug occurs if you change a Process Monitor & then remodel the device.

To cause the problem:

1) create a new Process Monitor
2) model the device
3) change the Process Monitor ( I changed the pattern )
4) model the device again
5) you should now start getting the "Process not running" error.

The fix seems to be:

1) You are getting the "Process not running" error from a device
2) delete the offending Process monitor
3) model the device
4) add the Process Monitor back, with your changed pattern
5) model the device again
6) The "Process not running" error from a device should go away

Hope this helps.
--Mike
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/63079#63079]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]

[jmp242]

jmp242 [http://community.zenoss.org/people/jmp242] created the discussion

"Re: Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/63081#63081

--------------------------------------------------------------
Can you submit this as a bug?
http://dev.zenoss.com/trac/wiki/HowToAddTicket http://dev.zenoss.com/trac/wiki/HowToAddTicket
--
James Pulver
ZCA Member
LEPP Computer Group
Cornell University
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/63081#63081]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]

[Mike Pfeuffer]

Mike Pfeuffer [http://community.zenoss.org/people/pfeuffer] created the discussion

"Re: Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/63082#63082

--------------------------------------------------------------
I'm trying to, but I don't have a Trac account and have not been able to log into dev.zenoss.com.

--Mike
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/63082#63082]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]

[jmp242]

jmp242 [http://community.zenoss.org/people/jmp242] created the discussion

"Re: Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/63083#63083

--------------------------------------------------------------
use
uname zenoss
pass zenoss

--
James Pulver
ZCA Member
LEPP Computer Group
Cornell University
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/63083#63083]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]

[Mike Pfeuffer]

Mike Pfeuffer [http://community.zenoss.org/people/pfeuffer] created the discussion

"Re: Lots of "Unable to read processes on device xxxx; Timeout on device" after upgrading from 2.5.1 to 3.2.1"

To view the discussion, visit: http://community.zenoss.org/message/63085#63085

--------------------------------------------------------------
done:  http://dev.zenoss.com/trac/ticket/7888 http://dev.zenoss.com/trac/ticket/7888
--------------------------------------------------------------

Reply to this message by replying to this email -or- go to the discussion on Zenoss Community
[http://community.zenoss.org/message/63085#63085]

Start a new discussion in zenoss-users by email
[discussions-community-forums-zenoss--***@community.zenoss.org] -or- at Zenoss Community
[http://community.zenoss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2003]