Zenoss ZenTech Community

I got some problems in Zenoss core. I am using version 6.2.1 at the moment and the graphs aren't showing any data. I tried rebooting the server and zenoss.core several times but it then works for a few hours.

The first thing was that some of the services where using more memory than they had. I fixed that problem by giving them more memory. But there a still 2 services who are failing the health check.

Subject:	RE: Zenoss Core Graphs Aren't showing
Author:	Jane Curry
Posted:	2019-01-14 08:17

It is opentsdb that you need to provide the graphs functionality so you need to get that going. How much memory in total do you have on your Zenoss server? I wouldn't start with less than 20GB.

Cheers,
Jane

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Jane Curry
Skills 1st United Kingdom
jane.curry@skills-1st.co.uk
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Subject:	RE: Zenoss Core Graphs Aren't showing
Author:	Hamza Aarab
Posted:	2019-01-14 08:22

Hello Jane,

The server has 32 gb of ram. Thats enought right?

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Hamza Aarab
PSIS
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Subject:	RE: Zenoss Core Graphs Aren't showing
Author:	Jane Curry
Posted:	2019-01-14 08:25

It should be :).

When you say "it works for a few hours", are you saying that opentsdb does come up and you do get graphs for a few hours, then it all stops?

If so, it has to be some sort of resources issue.
Cheers,
Jane

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Jane Curry
Skills 1st United Kingdom
jane.curry@skills-1st.co.uk
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Subject:	RE: Zenoss Core Graphs Aren't showing
Author:	Hamza Aarab
Posted:	2019-01-14 08:30

Yes opentsdb comes up and graph data. But for a few hours and then the opentsdb stops and i dont get any graph data anymore.

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Hamza Aarab
PSIS
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Subject:	RE: Zenoss Core Graphs Aren't showing
Author:	Ryan Matte
Posted:	2019-02-21 11:41

It sounds like your hbase data may possibly be broken/corrupted. You should attempt a repair and see if that helps...

serviced service attach hmaster
su - hbase
cd /opt/hbase/bin
./hbase hbck -ignorePreCheckPermission –fixAssignments
./hbase hbck -repairHoles
./hbase hbck -fix

If that doesn't fix it then you may need to blow away your hbase data and generate it from scratch (these steps should only be done as a last resort)...

First take a full backup of your system (just in case something goes wrong). After that, stop resource manager completely (but leave Control Center running), then on the master CC server (where <instance id> is your instance id)...

cd /opt/serviced/var/volumes/<instance id>
rm -rf hbase-*
rm -rf .hbase-*

Start resource manager back up.

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Ryan Matte
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Subject:	Zenoss Core Graphs Aren't showing
Author:	Hamza Aarab
Posted:	2019-01-14 02:43

Zenoss Core Graphs Aren't showing