NH_STAT_POLLS_PER_SECOND settings for SNMPv3 polling (Legacy KB ID CNC TS34879 )

Document ID : KB000051656
Last Modified Date : 14/02/2018
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Polling SNMPv3 agents adds additional load to the eHealth system due to the overhead associated with encryption and authentication. This  can cause missed polls for SNMPv3 elements and a corresponding loss of data granularity in reports.

If you are polling any SNMPv3 agents, verify that your setting for the NH_STAT_POLLS_PER_SECOND environment variable does not exceed 200 (+/- depending on the power of the eHealth polling server).   This setting establishes a performance boundary of 40,000 elements polled every 5 minutes. An indication that NH_STAT_POLLS_PER_SECOND is set too high is receipt of "no response" errors, specifically from SNMPv3 agents.


Related Issues/Questions:
NH_STAT_POLLS_PER_SECOND settings for SNMPv3 polling
Error:No response to SNMP requests
No response errors when polling SNMPv3 enabled devices

Problem Environment:
eHealth 6.0 and later

Additional Information:
Please reference TS14552 for more information regarding setting the  NH_STAT_POLLS_PER_SECOND environment variable.
This information supercedes recommendations provided in TS15045.

(Legacy KB ID CNC TS34879 )