My entire server keeps crashing, Heres triggers:

[DJHenjin]

Hello, My entire server that I run Zabbix on for monitoring keeps 'crashing' sometimes daily, sometimes every couple of days. Here is what shows up in triggers for that host

 
		
Severity 
	Status	
Last change 
 
	Age	Duration	Acknowledged	Host	
Name 
	Comments
 
	Information	OK	21 May 2013 11:38:00	1h 52m	 	Acknowledge (1)	Zabbix server	Host information was changed on Zabbix server	Add
 
	Information	OK	21 May 2013 11:37:55	1h 52m 5s	 	Acknowledged	Zabbix server	Hostname was changed on Zabbix server	Add
 
	Information	OK	21 May 2013 11:37:19	1h 52m 41s	 	Acknowledged	Zabbix server	Configured max number of processes is too low on Zabbix server	Add
 
	Information	OK	21 May 2013 11:37:18	1h 52m 42s	 	Acknowledged	Zabbix server	Configured max number of opened files is too low on Zabbix server	Add
 
	Average	OK	21 May 2013 11:37:16	1h 52m 44s	 	Acknowledged	Zabbix server	Version of zabbix_agent(d) was changed on Zabbix server	Add
 
	Average	OK	21 May 2013 11:18:07	2h 11m 53s	 	Acknowledge (1)	Zabbix server	/usr/sbin/sshd has been changed on server Zabbix server	Add
 
	Average	OK	21 May 2013 11:18:06	2h 11m 54s	 	Acknowledge (1)	Zabbix server	/usr/bin/ssh has been changed on server Zabbix server	Add
 
	Average	OK	21 May 2013 11:18:05	2h 11m 55s	 	Acknowledged	Zabbix server	/etc/services has been changed on server Zabbix server	Add
 
	Average	OK	21 May 2013 11:18:04	2h 11m 56s	 	Acknowledge (1)	Zabbix server	/etc/passwd has been changed on server Zabbix server	Add
 
	Information	OK	21 May 2013 11:18:01	2h 11m 59s	 	Acknowledge (4)	Zabbix server	Zabbix server has just been restarted	Add
 
	Average	OK	21 May 2013 11:09:40	2h 20m 20s	 	Acknowledged	Zabbix server	Zabbix_server is not running on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:39	2h 20m 21s	 	Acknowledged	Zabbix server	Zabbix_agentd is not running on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:37	2h 20m 23s	 	Acknowledge (2)	Zabbix server	Sshd is not running on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:36	2h 20m 24s	 	Acknowledge (3)	Zabbix server	Mysql is not running on Zabbix server	Add
 
	Average	PROBLEM	21 May 2013 11:09:32	2h 20m 28s	 	Acknowledged	Zabbix server	SSH server is down on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:31	2h 20m 29s	 	Acknowledged	Zabbix server	Email (SMTP) server is down on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:30	2h 20m 30s	 	Acknowledged	Zabbix server	POP3 server is down on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:28	2h 20m 32s	 	Acknowledged	Zabbix server	IMAP server is down on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:27	2h 20m 33s	 	Acknowledge (1)	Zabbix server	WEB (HTTP) server is down on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:26	2h 20m 34s	 	Acknowledged	Zabbix server	FTP server is down on Zabbix server	Add
 
	High	OK	21 May 2013 11:09:14	2h 20m 46s	 	Acknowledged	Zabbix server	Low free disk space on Zabbix server volume /usr	Add
 
	High	OK	21 May 2013 11:09:13	2h 20m 47s	 	Acknowledged	Zabbix server	Low number of free inodes on Zabbix server volume /home	Add
 
	High	OK	21 May 2013 11:09:11	2h 20m 49s	 	Acknowledge (2)	Zabbix server	Too many processes on Zabbix server	Add
 
	High	OK	21 May 2013 11:09:10	2h 20m 50s	 	Acknowledged	Zabbix server	Low number of free inodes on Zabbix server volume /	Add
 
	High	OK	21 May 2013 11:09:09	2h 20m 51s	 	Acknowledged	Zabbix server	Low free disk space on Zabbix server volume /tmp	Add
 
	High	OK	21 May 2013 11:09:04	2h 20m 56s	 	Acknowledged	Zabbix server	Low free disk space on Zabbix server volume /opt	Add
 
	Average	OK	21 May 2013 11:09:03	2h 20m 57s	 	Acknowledge (1)	Zabbix server	Too many processes running on Zabbix server	Add
 
	Average	OK	21 May 2013 11:09:02	2h 20m 58s	 	Acknowledged	Zabbix server	Too many users connected on server Zabbix server	Add
 
	High	OK	21 May 2013 11:09:00	2h 21m	 	Acknowledged	Zabbix server	Low free disk space on Zabbix server volume /home	Add
 
	High	OK	21 May 2013 11:08:57	2h 21m 3s	 	Acknowledged	Zabbix server	Lack of free swap space on Zabbix server	Add
 
	High	OK	21 May 2013 11:08:55	2h 21m 5s	 	Acknowledged	Zabbix server	Low free disk space on Zabbix server volume /	Add
 
	Average	OK	21 May 2013 11:08:54	2h 21m 6s	 	Acknowledged	Zabbix server	Lack of free memory on server Zabbix server	Add
 
	High	OK	21 May 2013 11:08:52	2h 21m 8s	 	Acknowledged	Zabbix server	Low number of free inodes on Zabbix server volume /usr	Add
 
	High	OK	21 May 2013 11:08:49	2h 21m 11s	 	Acknowledged	Zabbix server	Low number of free inodes on Zabbix server volume /tmp	Add
 
	High	OK	21 May 2013 11:08:49	2h 21m 11s	 	Acknowledged	Zabbix server	Low free disk space on Zabbix server volume /var	Add
 
	Average	OK	21 May 2013 11:08:48	2h 21m 12s	 	Acknowledge (3)	Zabbix server	Processor load is too high on Zabbix server	Add
 
	High	OK	21 May 2013 11:08:46	2h 21m 14s	 	Acknowledged	Zabbix server	Low number of free inodes on Zabbix server volume /opt

any help would be greatly appreciated.

[herta]

Looks like a UNIX/Linux box. What OS are you using?

Any clues in the syslog/messages file on the server?

The triggers complain about lack of disk space and inodes. What filesystem are you using?

[DJHenjin]

Ubuntu 12.04 LTS AMD 64,

Loads of free space, graphs are 100% normal even after the shutdown.

nothing mentioned in syslog or dmesg, no such file as messages....

if i knew what was going on. i would not be here.

[Heilig]

Look at the log file of zabbix server (turn on debug level 3), therein it is possible to find information about the cause.

[kevind]

When you say the 'entire server ... keeps crashing', do you mean the system reboots itself? system freezes? or is it just the zabbix-server process that crashes? Which versions (hardware, OS, Zabbix)?

I've seen issues in the past with Zabbix that caused the zabbix-server process to stop. But I've never seen it take down the entire machine,