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ping die after down alert

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Kwo Aie
spam0cont's picture
ping die after down alert

I have last core version with Ubuntu 12.04.3

From 2 months, sometime, if one host is reporting down and is not comming back after 10-15 minutes, ping on OS, only for that host is not working, for rest is ok.

That host is reported down forever and is comming back only after restart Ubuntu.

Nothing on log.

Someone had this problem?

Duncan Ferguson
dferguson's picture
If I remember correctly, in

If I remember correctly, in that version host checks are only run when a service check is not-ok.  If all services are ok then that would explain why the host does not get checked and the state corrected.

You should be able to force check a host from the menu or even submit a non-okay check result for a service, which would then trigger a host check.

  Duncs

Kwo Aie
spam0cont's picture
icmp host checks is working

icmp host checks is working for up and down

Kwo Aie
spam0cont's picture
I have from 4 years this app,

I have from 4 years this app, and is working host checks for up and down alert.

Practical opsview working, but ping is not able to check this

Duncan Ferguson
dferguson's picture
What checks are on this host

What checks are on this host and what state are they in?  All OK or some not OK?

  Duncs

Kwo Aie
spam0cont's picture
50 hosts to check, all

50 hosts to check, all routers, all method to check is ping.

One host dead, opsview report this like down, rest of hosts is reported UP.

After 2 hours host is phisical comming up , but Opsview is not reporting host to be up because ping on machine is not working for that host, only for that host, ping for rest is ok. After restart Ubuntu ping is comming back for problem host, and reported ok.

Sorry i'm not native english to explain.

 

Duncan Ferguson
dferguson's picture
When Opsview said the host

When Opsview said the host was down, could you ping the host from a terminal on the server?  

Does that host have a 'host check command' set to "ping" or does it have something else set?

  Duncs

Kwo Aie
spam0cont's picture
Yes, host have a host check

Yes, host have a host check command set to ping to all devices (hosts)

From terminal I cannot ping that host, rest hosts I can ping, any other ip I can ping, only the host that was reported down cannot ping.

After restart Ubuntu ping is working and host reported UP.

Duncan Ferguson
dferguson's picture
Right, so this isn't an

Right, so this isn't an Opsview issue, it was an OS issue.  Is this host on its own network or are there other hosts on the same IP address range?  It is behind a VPN or anything like that?  Has it happened before or just the once?

  Duncs

Kwo Aie
spam0cont's picture
Tehncaly is problem of OS,

Tehncaly is problem of OS, but this problem is only when opsview alerting host as down, no other ip have this problem, practical is a problem generated by opsview.

Duncan Ferguson
dferguson's picture
Opsview is only reporting

Opsview is only reporting what the OS is saying, that the host cannot be contacted by ping.  There is nothing in Opsview that will change how the OS runs or returns the ping information.

  Duncs

Kwo Aie
spam0cont's picture
...then why OS is not

...then why OS is not reporting false other host that is UP, and error is genereted only by host that just reported as down?