[Check_mk (english)] Smart ping, availability reports and host graphs

Archive checkmk-en
1

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

···

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

2

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/
cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

···

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en

3

Hi, perhaps I was not clear. The problem is that the historical data copied over from Nagios is correct and shows up fine even with CMC, but no new data is visible.

The availability for the period where CMC is running is showing up as NA.

We don't need ping times, but we do need the availability information.

···

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 13:46
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/
cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en

4

Hi Antti,

please try executing "cmk -R" as siteuser and check if the
availability is working after that.

If it's still not working I think that's a support case...

BTW: do you get host and service events displayed using the "events"
button at top of a view?

Regards,
Marcel

···

2017-07-20 12:54 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi, perhaps I was not clear. The problem is that the historical data copied over from Nagios is correct and shows up fine even with CMC, but no new data is visible.

The availability for the period where CMC is running is showing up as NA.

We don't need ping times, but we do need the availability information.

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 13:46
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/
cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en

5

Hi,

  cmk -R didn't help.

  Anyway, I (probably) found out what's the problem. We had no events since several of the hosts were consistently up during the migration and afterwards.

  There was a host that had been rebooted recently, so it was unavailable for a while.

  Since there never was an "UP" event for a host, it had no events whatsoever.

  We can probably fix the issue by disconnecting the monitoring host from network for e.g. ten minutes to generate lots of "DOWN" events for all hosts, and then connect it back (generating "UP" events). Will test this theory.

  Obviously, this should be handled a bit better...

···

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Marcel Schulte [mailto:schulte.marcel@gmail.com]
Sent: 20. heinäkuuta 2017 15:25
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antti,

please try executing "cmk -R" as siteuser and check if the availability is working after that.

If it's still not working I think that's a support case...

BTW: do you get host and service events displayed using the "events"
button at top of a view?

Regards,
Marcel

2017-07-20 12:54 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi, perhaps I was not clear. The problem is that the historical data copied over from Nagios is correct and shows up fine even with CMC, but no new data is visible.

The availability for the period where CMC is running is showing up as NA.

We don't need ping times, but we do need the availability information.

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 13:46
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and
host graphs

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/ cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en

6

"Fix" worked.

So from availability report's perspective the system was in NA state since no events had been generated. Despite copying over the Nagios history the "UP" state did not apparently carry over from Nagios.

Or was the mistake that we shut down Nagios before copying over the archive? Should we have copied it while Nagios was still running?

···

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Mäkelä, Antti
Sent: 20. heinäkuuta 2017 15:30
To: Marcel Schulte
Cc: checkmk-en@lists.mathias-kettner.de
Subject: RE: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi,

  cmk -R didn't help.

  Anyway, I (probably) found out what's the problem. We had no events since several of the hosts were consistently up during the migration and afterwards.

  There was a host that had been rebooted recently, so it was unavailable for a while.

  Since there never was an "UP" event for a host, it had no events whatsoever.

  We can probably fix the issue by disconnecting the monitoring host from network for e.g. ten minutes to generate lots of "DOWN" events for all hosts, and then connect it back (generating "UP" events). Will test this theory.

  Obviously, this should be handled a bit better...
--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Marcel Schulte [mailto:schulte.marcel@gmail.com]
Sent: 20. heinäkuuta 2017 15:25
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antti,

please try executing "cmk -R" as siteuser and check if the availability is working after that.

If it's still not working I think that's a support case...

BTW: do you get host and service events displayed using the "events"
button at top of a view?

Regards,
Marcel

2017-07-20 12:54 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi, perhaps I was not clear. The problem is that the historical data copied over from Nagios is correct and shows up fine even with CMC, but no new data is visible.

The availability for the period where CMC is running is showing up as NA.

We don't need ping times, but we do need the availability information.

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 13:46
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and
host graphs

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/ cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en

7

Hi Antii,

host and service states are not migrated, so usually all those items
should have started with no initial state. After some minutes the core
should have checked all items and have saved the state.

If this was not the case you may have found a bug.
If you should have copied some state files from nagios to the cmc core
state (making the state file corrupted), this could also have caused
the issue.

BTW: You were right to copy the history files while nagios was stopped.

Regards,
Marcel

···

2017-07-20 14:45 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

"Fix" worked.

So from availability report's perspective the system was in NA state since no events had been generated. Despite copying over the Nagios history the "UP" state did not apparently carry over from Nagios.

Or was the mistake that we shut down Nagios before copying over the archive? Should we have copied it while Nagios was still running?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Mäkelä, Antti
Sent: 20. heinäkuuta 2017 15:30
To: Marcel Schulte
Cc: checkmk-en@lists.mathias-kettner.de
Subject: RE: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi,

  cmk -R didn't help.

  Anyway, I (probably) found out what's the problem. We had no events since several of the hosts were consistently up during the migration and afterwards.

  There was a host that had been rebooted recently, so it was unavailable for a while.

  Since there never was an "UP" event for a host, it had no events whatsoever.

  We can probably fix the issue by disconnecting the monitoring host from network for e.g. ten minutes to generate lots of "DOWN" events for all hosts, and then connect it back (generating "UP" events). Will test this theory.

  Obviously, this should be handled a bit better...
--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Marcel Schulte [mailto:schulte.marcel@gmail.com]
Sent: 20. heinäkuuta 2017 15:25
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antti,

please try executing "cmk -R" as siteuser and check if the availability is working after that.

If it's still not working I think that's a support case...

BTW: do you get host and service events displayed using the "events"
button at top of a view?

Regards,
Marcel

2017-07-20 12:54 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi, perhaps I was not clear. The problem is that the historical data copied over from Nagios is correct and shows up fine even with CMC, but no new data is visible.

The availability for the period where CMC is running is showing up as NA.

We don't need ping times, but we do need the availability information.

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 13:46
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and
host graphs

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/ cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en

8

I simply followed the instructions at https://mathias-kettner.com/cms_cmc_migration.html - namely

OMD[mysite]:~$ cp var/nagios/nagios.log var/check_mk/core/archive
OMD[mysite]:~$ cp var/nagios/archive/* var/check_mk/core/archive

And like I said, the state before the migration showed up perfectly.

Anyway, now we have a workaround - simply cause some events for all the hosts (perhaps just set a 1 minute downtime or something, or the more drastic one by disabling the network card for a while) monitored on a site. As it's a one-shot thing it's not a big deal now that we know about it.

···

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 17:00
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antii,

host and service states are not migrated, so usually all those items
should have started with no initial state. After some minutes the core
should have checked all items and have saved the state.

If this was not the case you may have found a bug.
If you should have copied some state files from nagios to the cmc core
state (making the state file corrupted), this could also have caused
the issue.

BTW: You were right to copy the history files while nagios was stopped.

Regards,
Marcel

2017-07-20 14:45 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

"Fix" worked.

So from availability report's perspective the system was in NA state since no events had been generated. Despite copying over the Nagios history the "UP" state did not apparently carry over from Nagios.

Or was the mistake that we shut down Nagios before copying over the archive? Should we have copied it while Nagios was still running?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Mäkelä, Antti
Sent: 20. heinäkuuta 2017 15:30
To: Marcel Schulte
Cc: checkmk-en@lists.mathias-kettner.de
Subject: RE: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi,

  cmk -R didn't help.

  Anyway, I (probably) found out what's the problem. We had no events since several of the hosts were consistently up during the migration and afterwards.

  There was a host that had been rebooted recently, so it was unavailable for a while.

  Since there never was an "UP" event for a host, it had no events whatsoever.

  We can probably fix the issue by disconnecting the monitoring host from network for e.g. ten minutes to generate lots of "DOWN" events for all hosts, and then connect it back (generating "UP" events). Will test this theory.

  Obviously, this should be handled a bit better...
--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

-----Original Message-----
From: Marcel Schulte [mailto:schulte.marcel@gmail.com]
Sent: 20. heinäkuuta 2017 15:25
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and host graphs

Hi Antti,

please try executing "cmk -R" as siteuser and check if the availability is working after that.

If it's still not working I think that's a support case...

BTW: do you get host and service events displayed using the "events"
button at top of a view?

Regards,
Marcel

2017-07-20 12:54 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi, perhaps I was not clear. The problem is that the historical data copied over from Nagios is correct and shows up fine even with CMC, but no new data is visible.

The availability for the period where CMC is running is showing up as NA.

We don't need ping times, but we do need the availability information.

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

________________________________________
From: Marcel Schulte <schulte.marcel@gmail.com>
Sent: Thursday, July 20, 2017 13:46
To: Mäkelä, Antti
Cc: checkmk-en@lists.mathias-kettner.de
Subject: Re: [Check_mk (english)] Smart ping, availability reports and
host graphs

Hi Antti,

1) The CMC writes its history files in another place than Nagios (but
is able to read the later). You can copy all history files from Nagios
location to the CMC location and restart the core:

cp ~/var/nagios/archive/* ~/var/check_mk/core/archive/ cmk -R

2) With smartping no performance data is written. That's why the host
graphs are empty from the time of migration. But the (old) data is not
removed and so the CMC finds the xml and rrd files which leds to
showing the graphs/graph-icons in the GUI.

HTH,
Marcel

2017-07-18 13:27 GMT+02:00 Mäkelä, Antti <Antti.Makela@vintor.fi>:

Hi,

  for testing, we just migrated one of our monitoring sites from Nagios to CMC. Two things...

  1) Availability reports. The hosts show N/A for availability ever since we switched to CMC. Is this normal? How can we get accurate availability reports for hosts or is it something that will start working later when enough data is gathered (I tried omd restart to check if status would be "flushed" by that).

  2) I know that to monitor ping times, you need to set up an explicit "PING" check. However, if I don't do that, what's the "host graph" for? So far it's been empty. The migration guide at https://mathias-kettner.com/cms_cmc_migration.html only mentions that "after a conversion from a Nagios core the host checks at first provide no performance data". What does this "at first" even mean?

--
- Dr. Antti Mäkelä | Senior Architect | CCIE #20962 -
- Vintor Oy, Itsehallintokuja 6, 02600 Espoo | www.vintor.fi -

_______________________________________________
checkmk-en mailing list
checkmk-en@lists.mathias-kettner.de
http://lists.mathias-kettner.de/mailman/listinfo/checkmk-en