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agranell

54 Posts

170667

March 18th, 2015 07:00

8.0 question concerning alarms

Testing 8.0 and really like the performance so far. I get this message in the console and can't find any doc to respond to this message. Has anyone else gotten this with 8.0 before I go and open a ticket. Is there a task to do this?

The number of alarms stored in the Foglight database has exceeded 10000.0. There are over 35456.0 alarms thathave been cleared for over a week. Please consider clearing.

Message and Help

 

DELL-Golan S-T

54 Posts

March 25th, 2015 11:00

Hi, 

I think this is related to the following   (I did copy/paste to some of the text). 

Motivation
A lot of the information presented in the browser interface is derived from alarms (alarm counts, topology object states, and so on). If rules are configured poorly, this can result in the creation of a very large number of alarms within the system. The server imposes a default limit of 10000 alarms that can be displayed and used to calculate object states. When the server enforces this limit, it gives preference to the current alarms so that objects are presented in the correct state.
Symptom
The browser interface performance is poor (that is, it responds slowly), especially when displaying the alarms table.
Diagnosis / Verification
The server is not overloaded, and is still processing data.
CPU usage on the server is high when it is providing alarm information.
Threads may become blocked for several seconds, intermittently, when attempting to load alarm details.

It is not just a Foglight performance issue it is also a question of  "can you really manage an environment that has so many alarms?" .
You probably want to clear alarms.
You can also tweak alarms by individually disabling noisy alarms, changing thresholds or disabling warning alarm levels (different environment run with different settings and the out of the box settings may fit some but not all environments. 

You can also go to VMWare Environment Dashboard > Administration (Tab)  >  Set Alarm Sensetivity level     and switch to essential alarms. 



Hope this helps. 


Golan

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