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From "kcheng.mvp" <kcheng....@gmail.com>
Subject Is it safe to decrease the data region size for a live cluster
Date Mon, 24 Dec 2018 12:18:19 GMT
There are 3 nodes in our cluster with persistent enabled. 

each node has 256G memory

And there are already some data in the cluster.

here is my data region configuration.


    dataRegion:
      RP.initialSize: 50L * 1024 * 1024 * 1024
      RP.maxSize: 80L * 1024 * 1024 * 1024
      RR.initialSize: 20L * 1024 * 1024 * 1024
      RR.maxSize: 50L * 1024 * 1024 * 1024
      RMO.initialSize: 256L * 1024 * 1024
      RMO.maxSize: 2L * 1024 * 1024 * 1024

The max off-heap size is 80+50+2 = 132

off-heap / total = 132/256 =52 %

and my heap size is configured as 10G

just want to know max off-heap size is big or not (132G). if it's big(not
safe). then Can I stop one node first and decrease the data region size and
then start it.

follow above steps on all the other nodes.


Thank you very much!







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