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Difference between revisions of "ars.cfg"
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→CMOD Database Configuration
m (One more link for IBM CMOD ars.cfg ARS_USE_OLD_STYLE_CASE.) |
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;ARS_NUM_DBSRVR | ;ARS_NUM_DBSRVR | ||
: The ARS_NUM_DBSRVR parameter specifies the number of 'subservers' or database connections to create to the database. In larger systems, increasing this number may have performance benefits, at the expense of using additional RAM. | : The ARS_NUM_DBSRVR parameter specifies the number of 'subservers' or database connections to create to the database. In larger systems, increasing this number may have performance benefits, at the expense of using additional RAM. | ||
: The default of four should work for most non-public-facing CMOD servers. If your IBM CMOD server is exposed to external customers (via ODWEK / or ICN) you may need to increase this value. We recommend increasing 2-3x and testing the performance using the [[arssockd]] command with the -px options. | |||
: Increasing ARS_NUM_DBSRVR number too high may result in poor performance if not enough RAM is available. | : Increasing ARS_NUM_DBSRVR number too high may result in poor performance if not enough RAM is available. | ||
: Setting ARS_NUM_DBSRVR to 0 (zero) on large systems may cause performance issues during spikes in activity, as each new connection to CMOD creates a new Subserver, which may consume all available RAM. | : Setting ARS_NUM_DBSRVR to 0 (zero) on large systems may cause performance issues during spikes in activity, as each new connection to CMOD creates a new Subserver, which may consume all available RAM. | ||