IBM FileNet P8, Version 5.2.1            

Setting the indexing work capacity of subsystem dispatchers

You can set an upper limit to the number of index worker threads for a Content Platform Engine instance. By doing so, you control the indexing work capacity of the instance.

About this task

Content Platform Engine uses the configured upper limit to automatically scale the maximum number of worker threads for the instance. The intent of automatic scaling is to keep the following items proportionate: the amount of incoming work for IBM® Content Search Services and the capacity of IBM Content Search Services to handle that work. Specifically, the value of the Maximum worker threads property is used as an upper limit in the following way:

    Maximum workers per CPE instance = upper limit * (running CSS servers / configured CSS servers)

In this calculation, CPE instance refers to a Content Platform Engine instance, and server refers to an IBM Content Search Services index server. Configured CSS servers includes all registered index servers that have a status of either UNAVAILABLE or ENABLED (that is, any status other than DISABLED). Running CSS servers includes all configured servers that have a status of ENABLED. For example, suppose that you register four index servers with Content Platform Engine, enable them, and set the upper limit to 20. In the normal situation, all configured servers are running, and the calculated maximum number of worker threads is the same as the upper limit: 20 * (4 / 4) = 20. Otherwise, if not all configured servers are running, the calculated maximum is some fraction of the upper limit. For instance, if only three index servers are running, the calculated maximum is 15: 20 * (3 / 4) = 15.

Procedure

To set the upper limit for the maximum number of worker threads of a subsystem dispatcher:

  1. Open the object in the administration console for the wanted subsystem level. For example, to open an object at the domain or site level:
    Option Description
    Domain level In the domain navigation pane, click the name of the domain (the top-level item).
    Site level In the domain navigation pane, expand the Global Configuration > Administration > Sites folder and click the site.
  2. In the details pane, click the Text Search Subsystem tab.
  3. Enter a value for the Maximum worker threads for indexing property.
  4. Save your changes.


Last updated: October 2015
p8pcc211.htm

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