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Question
Julian Matthews · Nov 5, 2020

Impact of Journal File Size on MirrorDatabaseLatencyTime

Hey everyone.

I have noticed that my backup mirror is warning that the MirrorDatabaseLatencyTime is having a bad time (time in ms is 3000, and warnvalue is 3000). While I look into what may be causing this latency between the two servers, I was considering if reducing the size of the journal files would improve this value in any way.

My assumption is that reducing the file size would mean that the frequency of the journal files being created would be increased, but the reduced size would mean that the transfer and application of each file would be reduced.

Has anyone had experience in this area?

#Journaling #Mirroring #InterSystems IRIS for Health

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