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Subject: | [Solved] Zenoss 4.2.5 slows with default gateway setup on Centos |
Author: | Pheripheral Pheripheral |
Posted: | 2017-03-14 12:43 |
Hi,
I've noticed an funny 'issue' with Zenoss 4.2.5 on Centos, having setup a default gateway in the network settings. I was wondering if aynone else had come across this or had an idea of what is causing the problem?
It seems that certain zenoss activities take a lot longer to complete once a default gateway has been added to the centos network setup (by adding GATEWAY=
The simplest symptom i've found is that running zenoss status now seems to take several minutes to return with anything whereas without the gateway it takes about 5 to 10 seconds to report back the status of all the daemons etc...
Removing the gateway returns the performance of zenoss status to 5 to 10 seconds again.
Zenoss stops and starts also seem to take a lot longer and the modelling of devices takes a lot longer to get going than prior to the gateway setup.
Using some debug in the /opt/zenoss/etc/zenoss script has pointed to the fact that the zenoss script seems to wait a long time whilst the script calls 'zenpackdaemons --list' to get a list of the daemons but I'm out of ideas of why having a default gateway set should affect things in this way?
Can anyone shed any light on why having a network gateway should cause such an issue?
Thanks
Dafydd
Subject: | Solved (I think) |
Author: | Pheripheral Pheripheral |
Posted: | 2017-03-15 07:00 |
This seems to have been an issue with the DNS settings not setup correctly on the centos box.
Zenoss seems to have been attempting DNS lookups when doing a variety of tasks and with the dns not setup correctly the lookup retried many times with no response, holding things up for minutes.
Updating the Centos config to point to a valid dns server (in /etc/resolv.conf) seems to have recitfied ths issue and zenoss now plays nicely with the default gateway etc..
(alternatively a quick and dirty fix seemed to be added an entry for itself with the ip of its eth0 connection to the /etc/hosts file)
Hopefully this thread may be of use to someone else who may stumble across a similar issue...
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