Agent Technology › Turn off Statistics Collection

Turn off Statistics Collection

The aws_sadmin service is responsible for processing all SNMP requests coming in from the various CA components and for the generation of SNMP traps. In addition to these functions, the aws_sadmin service also maintains the awsAdmin MIB and the associated awsAdmin agent. The awsAdmin MIB contains the following categories of information:

• Configuration information
• Agent and MIB information
• Statistical information

The statistical information is collected in the following different groups:

• AwsAdminAgentGroup
• AwsAdminSnmpGroup
• AwsAdminPerfGroup
• AwsAdminSourceGroup

The maintenance of the statistical information within the awsAdmin MIB represents an appreciable amount of work for the aws_sadmin service. In fact, benchmark tests have shown that as much as 40% of the CPU time spent by the aws_sadmin process is consumed by the updating of all of these statistics.

As a performance-enhancing feature, the following environment variables have been added to control the collection of the statistical information within the awsAdmin MIB. These environment variables let you turn off the collection of any (all) statistics, resulting in the reduction in CPU (as well as increased performance) for the aws_sadmin service. The environment variables, along with their possible values, are as follows:

AW_ADMIN_STAT_AGENT=ON/OFF
AW_ADMIN_STAT_SNMP=ON/OFF/NOTOTAL
AW_ADMIN_STAT_PERF=ON/OFF
AW_ADMIN_STAT_SOURCE=ON/OFF

The default value for each variable is ON. If you want to change this value (to improve performance and reduce CPU overhead), define the environment variable within the agentworks.profile file in the root Agent Technology directory ($AGENTWORKS_DIR) of your zFS.