[Zabbix 2.2.4] fping problem on CentOS

[sccuser]

Hello dear forum,

I know it's a former question, a very boring one and I'm so sorry to bother you again!

I installed Zabbix 2.2.4 on CentOS using "Zabbix Sources" and all are working fine, exception ICMP => graphs did not show anything.

Configurations of mine.

[root@zabbix ~]# locate zabbix_server.conf
/etc/zabbix/zabbix_server.conf
/etc/zabbix/zabbix_server.conf.rpmnew
/usr/local/etc/zabbix_server.conf
/usr/local/etc/zabbix_server.conf.d
[root@zabbix ~]#

[root@zabbix ~]# locate fping
/usr/sbin/fping
/usr/sbin/fping6
/usr/share/doc/fping-3.9
/usr/share/doc/fping-3.9/COPYING
/usr/share/doc/fping-3.9/ChangeLog
/usr/share/doc/fping-3.9/README
/usr/share/man/man8/fping.8.gz
/usr/share/man/man8/fping6.8.gz
[root@zabbix ~]#

[root@zabbix ~]# grep FpingLocation /etc/zabbix/zabbix_server.conf
### Option: FpingLocation
# FpingLocation=/usr/sbin/fping
FpingLocation=/usr/sbin/fping
[root@zabbix ~]#

[root@zabbix ~]# chown root:zabbix /usr/sbin/fping
[root@zabbix ~]# chmod 4710 /usr/sbin/fping
[root@zabbix ~]# service zabbix-server restart ; service httpd restart
Shutting down Zabbix server: [ OK ]
Starting Zabbix server: [ OK ]
Stopping httpd: [ OK ]
Starting httpd: [ OK ]
[root@zabbix ~]#

[root@zabbix ~]# cat /etc/selinux/config

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security protection.
SELINUXTYPE=targeted


[root@zabbix ~]#

Thanks to give advice!
Cuong

[sccuser]

Any suggestions please?

[urly]

I didn't install from sources, but it might be, that you're having the same problem as I did.

My CentOS Zabbix installation has two user accounts which are used by Zabbix - one is zabbix user and the other is zabbixsrv user.

I had to give proper permissions to the zabbixsrv user (not zabbix) for fping to work.

So:
# chown root:zabbixsrv /usr/sbin/fping
# chmod 710 /usr/sbin/fping
# chmod ug+s /usr/sbin/fping

-urly

[sccuser]

Thanks urly but it seems does not work.

As the system only having 'zabbix' account then I gave the below a chance but not luck, graph show nothing. Any other clues?

[root@zabbix ~]# cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0perator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
saslauth:x:499:76:"Saslauthd user":/var/empty/saslauth:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
squid:x:23:23::/var/spool/squid:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
ntp:x:38:38::/etc/ntp:/sbin/nologin
apache:x:48:48:Apache:/var/www:/sbin/nologin
mysql:x:27:27:MySQL Server:/var/lib/mysql:/bin/bash
munin:x:498:498:Munin user:/var/lib/munin:/sbin/nologin
mailnull:x:47:47::/var/spool/mqueue:/sbin/nologin
smmsp:x:51:51::/var/spool/mqueue:/sbin/nologin
zabbix:x:130:130:Zabbix monitoring:/var/lib/zabbix:/bin/bash
nagios:x:500:500::/home/nagios:/bin/bash
nrpe:x:497:497:NRPE user for the NRPE service:/var/run/nrpe:/sbin/nologin
memcached:x:496:496:Memcached daemon:/var/run/memcached:/sbin/nologin
[root@zabbix ~]#

[root@zabbix ~]# chown root:zabbix /usr/sbin/fping
[root@zabbix ~]# chmod 710 /usr/sbin/fping
[root@zabbix ~]# chmod ug+s /usr/sbin/fping
[root@zabbix ~]# service zabbix-server restart ; service httpd restart
Shutting down Zabbix server: [ OK ]
Starting Zabbix server: [ OK ]
Stopping httpd: [ OK ]
Starting httpd: [ OK ]
[root@zabbix ~]#

[urly]

Can you confirm that zabbix_server process is running under zabbix user?

# ps -ef  | grep zabbix_server

If it's running as zabbix user, can you execute fping as zabbix user?

# su - zabbix
$ /usr/sbin/fping <some_pingable_ip>

You should get a response "<some_pingable_ip> is alive".

-urly

[sccuser]

Confirm it's running under 'zabbix' account

[root@zabbix ~]# ps -ef | grep zabbix_server
zabbix 4149 1 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4155 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4156 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4157 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4158 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4159 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4160 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4161 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4162 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4163 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4164 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4165 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4166 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4167 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4168 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4169 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4170 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4171 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4173 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4182 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4183 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4184 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4186 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4187 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4188 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4189 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4190 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4191 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4192 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4193 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4207 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4209 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4210 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4211 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4212 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4213 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4214 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4215 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4216 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4219 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4220 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4221 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4222 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4223 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
zabbix 4224 4149 0 16:08 ? 00:00:00 zabbix_server_mysql -c /etc/zabbix/zabbix_server.conf
root 9159 3370 0 16:46 pts/1 00:00:00 grep zabbix_server
[root@zabbix ~]#

And again to confirm that 'zabbix' is possible to execute the fping command

[root@zabbix ~]# su - zabbix
-bash-4.1$ /usr/sbin/fping google.com
google.com is alive
-bash-4.1$

Thanks for your further advice!

[urly]

Can you execute:

# setsebool 0

and check the Latest data in Zabbix GUI for the host you're trying to ping.

I know that you disabled SELinux, but just in case you didn't reboot the box after changing the configuration file...

Can you also check that "ICMP loss", "ICMP ping", "ICMP response time" items are marked as "Enabled" for the host you're pinging and there are no errors.

-urly

[sccuser]

Yes, all are enabled then did exactly as your suggestion, below

[root@zabbix ~]# setsebool 0
setsebool: SELinux is disabled.
[root@zabbix ~]# service zabbix-server restart ; service httpd restart
Shutting down Zabbix server: [ OK ]
Starting Zabbix server: [ OK ]
Stopping httpd: [ OK ]
Starting httpd: [ OK ]
[root@zabbix ~]#

[root@zabbix ~]# reboot

Broadcast message from [email protected]
(/dev/pts/1) at 17:29 ...

The system is going down for reboot NOW!
[root@zabbix ~]#
Last login: Tue Jul 22 08:00:34 2014 from x.x.x.x
[root@zabbix ~]#

but still the same => no data, no graph
(I did switch to ver 2.2.5 to find-out the luck )

[urly]

Do you see anything in the Zabbix server log regarding the ICMP items?

You could change the debug level to 4 and then search for the ICMP item keys. There should be something in the logs I guess.

If you don't find anything there, I'm out of ideas...

-urly

[ingus.vilnis]

Hi,

Can you also show us the full screenshot of your configuration page for this particular host?

Best Regards,
Ingus

[sccuser]

Dear all,

I'm trying to re-install Zabbix using following instruction then get back to you soon.

Thanks,
Cuong

[sccuser]

After gave it a try from source (install again on fresh CentOS) => I'm experiencing another kind of problem => this time would be "Zabbix server is not running: the information displayed may not be current", despite the daemons still running and latest data/graph from its agentd is showing.
I’m really frustrated and disappointed then.

[root@mntr ~]# ps -ef | grep zabbix
zabbix 1790 1 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server
zabbix 1796 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: configuration syncer [synced configuration in 0.003788 sec, idle 60 sec]
zabbix 1797 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: db watchdog [synced alerts config in 0.000626 sec, idle 60 sec]
zabbix 1798 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: poller #1 [got 1 values in 0.000033 sec, idle 5 sec]
zabbix 1799 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: poller #2 [got 0 values in 0.000005 sec, idle 5 sec]
zabbix 1800 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: poller #3 [got 0 values in 0.000006 sec, idle 5 sec]
zabbix 1801 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: poller #4 [got 0 values in 0.000006 sec, idle 5 sec]
zabbix 1802 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: poller #5 [got 0 values in 0.000006 sec, idle 5 sec]
zabbix 1803 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: unreachable poller #1 [got 0 values in 0.000006 sec, idle 5 sec]
zabbix 1804 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: trapper #1 [processed data in 0.000000 sec, waiting for connection]
zabbix 1805 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: trapper #2 [processed data in 0.000000 sec, waiting for connection]
zabbix 1806 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: trapper #3 [processed data in 0.000000 sec, waiting for connection]
zabbix 1807 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: trapper #4 [processed data in 0.000000 sec, waiting for connection]
zabbix 1808 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: trapper #5 [processed data in 0.043257 sec, waiting for connection]
zabbix 1809 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: icmp pinger #1 [got 0 values in 0.000006 sec, idle 5 sec]
zabbix 1810 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: alerter [sent alerts: 0 success, 0 fail in 0.000258 sec, idle 30 sec]
zabbix 1811 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: housekeeper [deleted 0 hist/trends, 0 items, 0 events, 0 sessions, 0 alarms, 0 audit items in 0.024990 sec, idle 1 hour(s)]
zabbix 1812 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: timer #1 [processed 1 triggers, 0 events in 0.000174 sec, 0 maintenances in 0.000000 sec, idle 30 sec]
zabbix 1813 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: http poller #1 [got 0 values in 0.000318 sec, idle 5 sec]
zabbix 1814 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: discoverer #1 [processed 0 rules in 0.000275 sec, idle 60 sec]
zabbix 1815 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: history syncer #1 [synced 5 items in 0.059600 sec, idle 5 sec]
zabbix 1821 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: history syncer #2 [synced 0 items in 0.000003 sec, idle 5 sec]
zabbix 1822 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: history syncer #3 [synced 0 items in 0.000002 sec, idle 5 sec]
zabbix 1823 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: history syncer #4 [synced 0 items in 0.000003 sec, idle 5 sec]
zabbix 1824 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: escalator [processed 0 escalations in 0.000254 sec, idle 3 sec]
zabbix 1825 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: proxy poller #1 [exchanged data with 0 proxies in 0.000006 sec, idle 5 sec]
zabbix 1826 1790 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_server: self-monitoring [processed data in 0.000006 sec, idle 1 sec]
zabbix 1854 1 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_agentd
zabbix 1859 1854 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_agentd: collector [idle 1 sec]
zabbix 1860 1854 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_agentd: listener #1 [waiting for connection]
zabbix 1861 1854 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_agentd: listener #2 [waiting for connection]
zabbix 1862 1854 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_agentd: listener #3 [waiting for connection]
zabbix 1863 1854 0 07:33 ? 00:00:00 /usr/local/sbin/zabbix_agentd: active checks #1 [idle 1 sec]
root 2131 1445 0 07:37 pts/0 00:00:00 grep zabbix
[root@mntr ~]#

FYI: the deamon itself cannot be found after compile the source, I have to manual copy from 'misc/init.d/tru64/' to /usr/local/sbin/ and set permission before using.

Thanks for your help again!

[sccuser]

Here is the log file, that says connection to database has failed, any clues?

2460:20140724:080554.776 [Z3005] query failed: [2006] MySQL server has gone away [select escalationid,actionid,triggerid,eventid,r_eventid, nextcheck,esc_step,status,itemid from escalations order by actionid,triggerid,itemid,escalationid]
2460:20140724:080554.776 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
2460:20140724:080554.776 Database is down. Reconnecting in 10 seconds.
2454:20140724:080557.777 [Z3005] query failed: [2006] MySQL server has gone away [select h.hostid,h.host,h.name,t.httptestid,t.name,t.varia bles,t.agent,t.authentication,t.http_user,t.http_p assword,t.http_proxy,t.retries from httptest t,hosts h where t.hostid=h.hostid and t.nextcheck<=1406163957 and mod(t.httptestid,1)=0 and t.status=0 and h.proxy_hostid is null and h.status=0 and (h.maintenance_status=0 or h.maintenance_type=0)]
2454:20140724:080557.777 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
2454:20140724:080557.777 Database is down. Reconnecting in 10 seconds.
2456:20140724:080557.782 [Z3005] query failed: [2006] MySQL server has gone away [begin;]
2456:20140724:080557.782 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
2456:20140724:080557.782 Database is down. Reconnecting in 10 seconds.
2453:20140724:080600.765 [Z3005] query failed: [2006] MySQL server has gone away [select clock,ns,value from history_uint where itemid=23287 and clock<=1406163960 and clock>1406160360 order by clock desc,ns desc limit 1]
2457:20140724:080602.783 [Z3005] query failed: [2006] MySQL server has gone away [begin;]
2451:20140724:080612.765 [Z3005] query failed: [2006] MySQL server has gone away [select a.alertid,a.mediatypeid,a.sendto,a.subject,a.messa ge,a.status,mt.mediatypeid,mt.type,mt.description, mt.smtp_server,mt.smtp_helo,mt.smtp_email,mt.exec_ path,mt.gsm_modem,mt.username,mt.passwd,a.retries from alerts a,media_type mt where a.mediatypeid=mt.mediatypeid and a.status=0 and a.alerttype=0 order by a.alertid]
2458:20140724:080617.808 [Z3005] query failed: [2006] MySQL server has gone away [begin;]
2459:20140724:080632.829 [Z3005] query failed: [2006] MySQL server has gone away [begin;]

[sccuser]

Sorry, I should close the thread as the new issue one is not related to the previous.

BTW, I would like to say thank you for your time, a lot!