IBM Support

ITCAM4Tx: ISM - tuning MaxCCA for multi threaded monitors

Question & Answer


Question

When would I need to set-up and increase "MaxCCA" parameter in the [monitor_type].props file?

Answer

Increasing the MaxCCA parameter would be worthwhile only if you are not able to poll all the elements within the X minutes poll interval that is specified in [monitor_type].xml

You will be able to see if you need to do such thing if you are getting warning messages
like :
"Warning: Message queue full. Old event overwritten
in the [monitor_type].log about the polls falling behind.

For reference, possible values of MaxCCA parameter are defined at this link:
http://www-01.ibm.com/support/knowledgecenter/SS5MD2_7.4.0.1/com.ibm.itcamt.doc/ism/dita/ag/concept/ISM_deploy_monproperty.html?lang=en
10 for low volume polling
50 for high volume polling (more than 500 profile elements)

So try and increase gradually maxcca in [monitor_type].props and bridge.props; recycle the ISM agent, and verify if things improve.

[{"Product":{"code":"SS5MD2","label":"Tivoli Composite Application Manager for Transactions"},"Business Unit":{"code":"BU004","label":"Hybrid Cloud"},"Component":"ITCAM TRANSACT ISM 5724S79IS v710","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"7.4","Edition":""}]

Product Alias/Synonym

itcam itcam4transactions Internet services monitoring itcam4t itcam4tx

Document Information

Modified date:
17 June 2018

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swg21574736