Many Servers are unreachable for more than 5 minutes

[moneynut]

We have asked you for information (that you have not provided) to try and help you out. As I have mentioned in this thread, these graphs are going to tell a lot about your setup and what may need tweaking.

https://www.zabbix.com/forum/showpost.php?p=146845&postcount=15

Provide a 24 hour view of Zabbix Internal process busy graph, Zabbix data gathering process busy graph and Zabbix Cache usage graph.

I don't mean to be curt, but you ask "what's next" when you are disregarding troubleshooting steps we have asked for way back in this thread.

I din't intentionally disregard it. I've been on other forums and been quite busy on zabbix and been working with others to figure out the issue. I'll attach it 5 minutes, I forgot to attach to this post the other day.

[moneynut]

Actually there is no data in data gathering graphs and other graphs.

I've attached it anyway. It looks same for all graphs.

[moneynut]

Here is 7 day graph

[moneynut]

Sorry for the spam. Unable to attach other graphs.

Here is the link to Internal and cache graphs.

http://tinypic.com/r/o56c93/8

http://tinypic.com/r/2j2tjbo/8

[aib]

Does you server actually works Or ever worked?

Could you check it by command:

# tail -f /var/log/zabbix/zabbix_server.log

and tell us if anything happens inside of log-file?

[moneynut]

Does you server actually works Or ever worked?

Could you check it by command:

# tail -f /var/log/zabbix/zabbix_server.log

and tell us if anything happens inside of log-file?

It works fine. Just sends false alerts. But yes, it does alerts if the host really goes down as well and CPU and disk space etc. I just don't know why there were no graphs.

tail LOG :

17019:20140321:121657.881 Zabbix agent item "net.if.in[Microsoft ISATAP Adapter #2]" on host "HOST-008" failed: first network error, wait for 15 seconds
17023:20140321:121721.897 resuming Zabbix agent checks on host "BSC-008": connection restored
17022:20140321:121754.057 resuming Zabbix agent checks on host "HOST-128": connection restored
17017:20140321:121824.945 Zabbix agent item "net.if.in[WAN Miniport (IPv6)-QoS Packet Scheduler-0000]" on host "HOST-155" failed: first network error, wait for 15 seconds
17022:20140321:121854.705 resuming Zabbix agent checks on host "HOST-102": connection restored
17022:20140321:121855.035 resuming Zabbix agent checks on host "HOST-098": connection restored
17022:20140321:121855.361 resuming Zabbix agent checks on host "QA-SERVER": connection restored
17022:20140321:121905.778 resuming Zabbix agent checks on host "HOST-222": connection restored

[moneynut]

.

Is there anything else I can upload that might help us to troubleshoot?

[tchjts1]

Actually there is no data in data gathering graphs and other graphs.

I've attached it anyway. It looks same for all graphs.

Look at the items for your Zabbix server and specifically the items that belong to Template App Zabbix Server. Is there any indication of them "Not supported" or "disabled"?

[moneynut]

Look at the items for your Zabbix server and specifically the items that belong to Template App Zabbix Server. Is there any indication of them "Not supported" or "disabled"?

No. Everything is enabled and there are no errors.

[aib]

Silly question - Could you tell me a little bit about "History Storage Period" for any Items in Zabbix Server Host?
Sorry for asking that but I had the past experience when Storage Period was equal 0 and Zabbix didn't save any data for that Item.

[moneynut]

Silly question - Could you tell me a little bit about "History Storage Period" for any Items in Zabbix Server Host?
Sorry for asking that but I had the past experience when Storage Period was equal 0 and Zabbix didn't save any data for that Item.

History Storage period (in Days) = 7

[tchjts1]

No. Everything is enabled and there are no errors.

Are you looking at the items via Configuration --> Host --> Items, or are you looking at Configuration --> Templates --> Items ?

You need to look at Host --> Items.

And if that is where you see they are enabled and with no errors, then what are you seeing under Monitoring --> Latest Data --> <Zabbix Server> then under the category of "Zabbix Server" ?

If they are reporting correctly, you should see data there similar to this:

[moneynut]

Are you looking at the items via Configuration --> Host --> Items, or are you looking at Configuration --> Templates --> Items ?

You need to look at Host --> Items.

And if that is where you see they are enabled and with no errors, then what are you seeing under Monitoring --> Latest Data --> <Zabbix Server> then under the category of "Zabbix Server" ?

If they are reporting correctly, you should see data there similar to this:

I'll update this post tomorrow. (after 24 hours). I managed to fix the zabbix graph monitoring. I'll upload all Zabbix server graphs.

[moneynut]

Here are the graphs. It looks bad. Server performance (Ram and CPU) is normal FYI.

[tchjts1]

Here are the graphs. It looks bad. Server performance (Ram and CPU) is normal FYI.

It might look bad, but the good news is that now you know what needs to be adjusted. On your Zabbix server in zabbix_server.conf:

Increase:
StartPollers=xx (Increase by 10 or 15 at a time until stable)
StartPollersUnreachable=xx (try 10 or 15)
StartDiscoverers=2
TrendCacheSize=64M

Leave StartDBSyncers=4 (Do not change)

Make sure all the above lines (if changed from default) are not preceded by a comment # or they will use the default settings. Restart your Zabbix server process. Give it 10 or 15 minutes then check your graphs graphs agin. Adjust settings as further necessary.

When I adjust any of those settings, I prefer to leave the default line in place and put my new value onto a new line such as this:

### Option: StartPollers
# Number of pre-forked instances of pollers.
#
# Mandatory: no
# Range: 0-1000
# Default:
# StartPollers=5
StartPollers=350