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Subject:	Might want to try the
Author:	Jay Stanley
Posted:	2014-08-12 22:54

Might want to try the following community ZenPack:

http://wiki.zenoss.org/ZenPack:NaN_Threshold

A ZenPack which provides facility to alert on datapoints whose value is NaN (no data).

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Subject:	Thats a great zenpack,
Author:	[Not Specified]
Posted:	2014-08-13 04:16

Thats a great zenpack, exactly what I was looking for. I've installed the ZenPack but are unable to find the monitoring template, how can I connect this to my datapoints

Thanks for the help jstanley

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Subject:	I just found out how to do it
Author:	[Not Specified]
Posted:	2014-08-13 05:04

I just found out how to do it, unfortunately its not working the way I would like.

for example I got a datasource which checks the uptime of my hosts and graphs it, the datapoint for this graph is named days. So I've added a NaN monitoring datasource with in the datapoints field filled in "days" but this is not working.

What am I doing wrong here

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Subject:	zenoss@*:/usr/local/zenoss
Author:	[Not Specified]
Posted:	2014-08-13 05:37

zenoss@*:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons$ ./zennanthresh start
starting...
Traceback (most recent call last):
File "/mnt/data01/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/zennanthresh.py", line 27, in
from ZenPacks.community.NanThreshold.services.nanThreshConfig import getVarNames
ImportError: No module named NanThreshold.services.nanThreshConfig
zenoss@*:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons

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Subject:	as root it does work
Author:	[Not Specified]
Posted:	2014-08-13 05:47

as root it does work

root@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons# ./zennanthresh status
program running; pid=21762
root@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons# ./zennanthresh stop
stopping...
root@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons# ./zennanthresh start
starting...
root@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons# ./zennanthresh status
program running; pid=24398

as user zenoss it does not

zenoss@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons$ ./zennanthresh status
program running; pid=24398
zenoss@amo001:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons$ ./zennanthresh stop
stopping...
zenoss@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/daemons$ ./zennanthresh start
starting...
Traceback (most recent call last):
File "/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/zennanthresh.py", line 180, in
daemon = CollectorDaemon(myPreferences, myTaskSplitter)
File "/usr/local/zenoss/Products/ZenCollector/daemon.py", line 209, in __init__
super(CollectorDaemon, self).__init__(name=self.preferences.collectorName)
File "/usr/local/zenoss/Products/ZenRRD/RRDDaemon.py", line 61, in __init__
PBDaemon.__init__(self, noopts, name=name)
File "/usr/local/zenoss/Products/ZenHub/PBDaemon.py", line 545, in __init__
self.log.critical( traceback.format_exc( 0 ) )
AttributeError: 'CollectorDaemon' object has no attribute 'log'
zenoss@@:/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold

but when its started by root there is no events coming either

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Subject:	Never used this ZenPack, so I
Author:	Jay Stanley
Posted:	2014-08-13 18:20

Never used this ZenPack, so I am not 100% on usage. But if it has it's own daemon, then I would stop it. Then restart zenoss. then do zenoss status and see if the daemon is there.

I see two different errors in your posts. So, lets start with the above and see if the daemon is there and if it is started.

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Subject:	thanks for your answer
Author:	[Not Specified]
Posted:	2014-08-14 00:31

thanks for your answer jstanley.

I've restarted zenoss on the main server (got 3 remote collectors to collect data) but unfortunately the daemon is not starting up either.

zenoss@*:~$ zennanthresh status
not running

starting it manualy on the same server gives me the following error:

zenoss@*:~$ zennanthresh start
starting...
Traceback (most recent call last):
File "/usr/local/zenoss/ZenPacks/ZenPacks.community.NanThreshold-1.2.3-py2.7.egg/ZenPacks/community/NanThreshold/zennanthresh.py", line 180, in
daemon = CollectorDaemon(myPreferences, myTaskSplitter)
File "/usr/local/zenoss/Products/ZenCollector/daemon.py", line 209, in __init__
super(CollectorDaemon, self).__init__(name=self.preferences.collectorName)
File "/usr/local/zenoss/Products/ZenRRD/RRDDaemon.py", line 61, in __init__
PBDaemon.__init__(self, noopts, name=name)
File "/usr/local/zenoss/Products/ZenHub/PBDaemon.py", line 545, in __init__
self.log.critical( traceback.format_exc( 0 ) )
AttributeError: 'CollectorDaemon' object has no attribute 'log'

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Subject:	ah problem was the logfile,
Author:	[Not Specified]
Posted:	2014-08-14 00:41

ah problem was the logfile, it had the wrong permissions because it got created by root because I started the daemon as root yesterday. The daemon is running properly now, I will find out of it works.

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Subject:	the daemon is running but it
Author:	[Not Specified]
Posted:	2014-08-14 01:21

the daemon is running but it is not generating any events yet

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Subject:	damn Im stupid, ofcourse I
Author:	[Not Specified]
Posted:	2014-08-14 01:27

damn Im stupid, ofcourse I should be running the daemon on the remote collector because all the graph's are on that server.

Installing the zenpack on the remote collector gives me the following error:

zenoss@*:~/ZenPacks.community.NanThreshold-master$ zenpack --install ZenPacks.community.NanThreshold-1.2.3-py2.7.egg
WARNING:relstorage.adapters.mysql:Unable to connect: (2002, "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)")
ERROR:zen.ZenPackCmd:zenpack command failed
Traceback (most recent call last):
File "/usr/local/zenoss/Products/ZenUtils/zenpack.py", line 487, in
zp.run()
File "/usr/local/zenoss/Products/ZenUtils/zenpack.py", line 143, in run
self.connect()
File "/mnt/data01/usr/local/zenoss/Products/ZenUtils/ZenScriptBase.py", line 46, in connect
self.db, self.storage = connectionFactory.getConnection(**self.options.__dict__)
File "/mnt/data01/usr/local/zenoss/Products/ZenUtils/MySqlZodbFactory.py", line 165, in getConnection
storage = relstorage.storage.RelStorage(adapter, **relstoreParams)
File "/mnt/data01/usr/local/zenoss/lib/python/relstorage/storage.py", line 167, in __init__
self._adapter.schema.prepare()
File "/mnt/data01/usr/local/zenoss/lib/python/relstorage/adapters/schema.py", line 856, in prepare
self.connmanager.open_and_call(callback)
File "/mnt/data01/usr/local/zenoss/lib/python/relstorage/adapters/connmanager.py", line 73, in open_and_call
conn, cursor = self.open()
File "/mnt/data01/usr/local/zenoss/Products/ZenUtils/patches/mysqladaptermonkey.py", line 46, in open
conn, cursor = original(self, *args, **kwargs)
File "/mnt/data01/usr/local/zenoss/lib/python/relstorage/adapters/mysql.py", line 231, in open
conn = MySQLdb.connect(**self._params)
File "/mnt/data01/usr/local/zenoss/lib/python/MySQLdb/__init__.py", line 81, in Connect
return Connection(*args, **kwargs)
File "/mnt/data01/usr/local/zenoss/lib/python/MySQLdb/connections.py", line 187, in __init__
super(Connection, self).__init__(*args, **kwargs2)
OperationalError: (2002, "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)")

He is looking for mysql but its not running on the collector, only on the main server. Does this mean that this zenpack is only usable on a zenoss server that has both the mysql server and the rrd files

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Subject:	Dont install the zenpack
Author:	Jay Stanley
Posted:	2014-08-15 14:00

Dont install the zenpack manually.. update the collectors using the webui or 'dc-admin update'

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Subject:	i've done what you've said
Author:	[Not Specified]
Posted:	2014-08-18 07:02

i've done what you've said and the zenpack is successfully installed on the remote collectors.

Next i've created a datasource into the same monitoring template as the datasource/datapoints of the value's I would like to monitor:

https://www.dropbox.com/s/6zzqt8ma2eyaro1/Screenshot%202014-08-18%2014.0...
https://www.dropbox.com/s/i3c9i5u6q908lsf/Screenshot%202014-08-18%2014.0...

I know for sure that some of the datapoints (avg, min, max, loss) are not working and therefore have a nan value, but unfortunately it is not generating events for them.

thanks in advance jstanley.

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Subject:	Did you add NAN to the
Author:	[Not Specified]
Posted:	2014-08-26 13:11

Did you add NAN to the monitoring template you want to check for NaNs It doesn't necessarily work how you think. You go to a monitoring template, add a datasource of type NaN and then pick the datasources to check...

James Pulver

ZCA Member

CLASSE Computer Group

Cornell University

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Subject:	If graph has nan value, then
Author:	Jan Garaj
Posted:	2014-08-27 03:22

If graph has nan value, then also source rrd file must have nan value -> new task - find rrd files with nan value;
you can try https://github.com/jangaraj/zenoss/blob/master/scripts/findNANrrds.sh script (poc) - probably you will need to tweak --start --end values for right results.

If you want to monitor nan values, then nan zenpack is right solution of course.

Devops Monitoring Expert advice: Dockerize/automate/monitor all the things.

DevOps stack: Docker / Kubernetes / Mesos / Zabbix / Zenoss / Grafana / Puppet / Ansible / Vagrant / Terraform / Elasticsearch