Raft: Check suspect info once per suspect interval (bp #1600) #1601
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Today's existing suspect logic has a periodic checker, which checks every 10s if the Raft cluster still has quorum. If the cluster has lost quorum, it marks the time this event begins, then, every 10s checks to see if 'enough' time has elapsed since the quorum was lost to suspect that the OSN has been evicted. If the OSN has not been evicted, or cannot determine its eviction status, then every 10s the OSN attempts to re-check its suspicion status, which can lead to large volumes of network traffic, especially in significiantly multichannel environments. This commit modifies the logic to track the number of times that the suspect checking logic has actually executed, to ensure that we check no more than once every suspect interval (by default every 10m, instead of every 10s). Signed-off-by: Jason Yellick <jyellick@us.ibm.com> (cherry picked from commit c90015c)
lindluni
approved these changes
Jul 15, 2020
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