[1.4.2svn]: ZBX_TCP_READ() failed [Interrupted system call]

[kloczek]

Zabbix agent is not avalaible.
After enable debug messages on server side I see in server logs:

6661:20070712:201224 Get value from agent failed. Error: ZBX_TCP_READ() failed [Interrupted system call]
6661:20070712:201224 Host [backup02] will be checked after 60 seconds

[kloczek]

Similar when trying connect to zabbix agent 1.1.7:

6661:20070712:202230 Timeout while answering request
6661:20070712:202230 Get value from agent failed. Error: ZBX_TCP_READ() failed [Interrupted system call]
6661:20070712:202230 Host [sql01]: another network error, wait for 15 seconds

[Alexei]

Are you sure the pre1.4.2 is running?

[manfro]

Hello,
I've the same issue but I think is due to network configuration.
If I try to reach the zabbix agent via an internal IP, without any firewall it works.
Else if try the external, public IP address, passing through IPTables it doesn't work properly.
IPTables is open on the correct ports and telnet on the agentd port from server and on the server port agentd works.

[cbidwell]

Has anyone solved this issue here? I'm running several clients behind several different makes of firewalls, however I am running a Juniper Netscreen firewall that seems to be causing problems for my clients behind it. I can't figure out why. I've got tcp/10050 open as well as on my iptables. The client is reachable and zabbix server shows it available, however after a period of time, it would go unreachable again. Very strange. If I restart the zabbix_agentd service on the client, it will reestablish connectivity again. Can anyone help me with this?

[skaze]

We just encountered this issue. Restarting the agent on the client kept the server up.

[Alexei]

Probably the firewall have some kind of maximum number of established connections per minute/hour limit, so it just rejects everything after the point is reached.