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Error in logs

listener failed: zbx_tcp_listen() fatal error: unable to serve on any address [[-]:10051]

[root@abc-zabserver-b zabbix]# netstat -lntp | grep 10051
tcp        0      0 0.0.0.0:10051               0.0.0.0:*                   LISTEN      2150/zabbix_server
tcp        0      0 :::10051                    :::*                        LISTEN      2150/zabbix_server

Service status and when trying to start

[root@abc-zabserver-b zabbix]# service zabbix-server status
zabbix_server is stopped
[root@abc-zabserver-b zabbix]# service zabbix-server start
Starting Zabbix server:                                    [  OK  ]
[root@abc-zabserver-b zabbix]# service zabbix-server status
zabbix_server is stopped

Process is running (sometimes shows multiple processes running)

[root@abc-zabserver-b zabbix]# ps afx | grep -i zabbix
 3852 pts/1    S+     0:00  |       \_ grep -i zabbix
 2150 ?        S      0:00 zabbix_server -c /etc/zabbix/zabbix_server.conf

But service still stopped

[root@abc-zabserver-b zabbix]# service zabbix-server status
zabbix_server is stopped
John Test
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4 Answers4

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Late but i hope it could help.

In my case it happened just because there was already a zabbix process running in background.

> service zabbix-agent status
 * zabbix_agentd is not running

But if i check PIDS

> pgrep zabbix
   14430
   14431
   14432

So kill them manually

> pgrep zabbix | xargs kill

And just restart and verify the service

> service zabbix-agent restart
> service zabbix-agent status
 * zabbix_agentd is running
Juan-Kabbali
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1

It can't start because it's already running (and the pid file somehow doesn't reflect that). Kill it yourself, then restart it.

Michael Hampton
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0

I was deploying Zabbix with puppet and I had 

ensure => installed (instead of specific version)

What this did is install a newer version of Zabbix whereas the config file I sourced was still from an older version resulting in this issue. Although I am surprised to see this since they are both within 2.4.x but I have verified this to be the case. I have not gone into details of config parameters etc.

John Test
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I had the same problem on Ubuntu 14.04.5 LTS with multiple network interfaces eth0 and eth1. As it turned out, Zabbix couldn't listen to 0.0.0.0 but worked fine when listening to eth0's address. Hope this helps someone else having this problem for the same reason.

ListenIP=111.222.111.222
Kaivosukeltaja
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