Werk #6342: Fixed degraded SNMP check performance when using SNMP sub checks

Component

Checks & agents

Title

Fixed degraded SNMP check performance when using SNMP sub checks

Date

Jul 10, 2018

Level

Prominent Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

1.6.0b1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.5.0b9	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

When checking a host with SNMP sub checks which normally all get the same data, the data was fetched multiple times. One time for each subcheck used for monitoring a host.

This resulted in significantly increased check times and time outs. All 1.5 versions are affected by this issue.

We experienced this issue with a CMCiii device which is normally monitored by a set of sub checks (cmciii.*).

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