first network error, wait for 15 seconds

[ingus.vilnis]

Hi,

Please check MySQL docs and config guidelines regarding wait_timeout. It sometimes gets confusing that the configs of MySQL are stored in multiple files and you don't know really what are the defaults and what are not unless you aren't a database guru.


What is the host='dmz-zabbix'? Check for yourself what is the host doing and aren't there any misconfiguration issues with it?

Best Regards,
Ingus

[Crypty]

'dmz-zabbix' is the name of our Zabbix server...

# cat /usr/local/etc/zabbix_agentd.conf | grep dmz
Hostname=dmz-zabbix

[Crypty]

Using 28800 for sure:

mysql> SELECT @@global.wait_timeout, @@global.interactive_timeout, @@session.wait_timeout, @@session.interactive_timeout;
+-----------------------+------------------------------+------------------------+-------------------------------+
| @@global.wait_timeout | @@global.interactive_timeout | @@session.wait_timeout | @@session.interactive_timeout |
+-----------------------+------------------------------+------------------------+-------------------------------+
| 28800 | 28800 | 28800 | 28800 |
+-----------------------+------------------------------+------------------------+-------------------------------+
1 row in set (0.00 sec)

---

Btw can I somehow delete the interface configured for the Host? If I open the host and I want e.g. delete the Agent interface so only the SNMP interface is there... I cannot do that, cannot click on the "remove" button. If I click "clone", then it's possible to create another instance of the Host without this Interface, but the history of the values I got from the original one is lost, isn't it?

[ingus.vilnis]

Wait_timeout is ok in this case and please leave it as is. There are other reasons for those errors in logs but I'm afraid that the issue now is going beyond the level of troubleshooting that could be done over forum posts.

Of course, if anyone here can come up with some other bright ideas - welcome!

Regarding deleting interfaces - you cannot simply delete an interface that has already some item history.
You can either keep the interface or as you already said - lose the history.

Best Regards,
Ingus

[jessian]

maybe I have underestimated the data load

dear friends,

after reading the following presentation, I configured one of my proxies to 800 pollers and 200 unreachable pollers, thinks started working much better !

http://pt.slideshare.net/xsbr/alexei-vladishev-zabbixperformancetuning

in 3 other proxies, configuring 200/100 was enough

best regards
Jessian

[jessian]

sorry, 800 pollers is the total amount of processes, please take a look:

StartPollers=650
StartPollersUnreachable=150

I raised also the number of discoverer process, as we make extensive use of LLD, but still have to check it out whether it is enough:

StartDiscoverers=10