1 Reply Latest reply on Aug 30, 2013 11:03 AM by lukasz74nj

    Replication count very high (5.3.0)

    lukasz74nj
    lukasz74nj Aug 27, 2013 1:35 PM

      Hi,

       

      Replication count appears to be very high, which in turn causes high CPU, timeouts and makes the application unresponsive.

       

      I have 4 nodes in a cluster running in an asynchronous replication mode.  JConsole shows the following statistics:

       

      1) Node 1

       

      - number of entries: 16

      - hits: 305

      - misses: 7

      - replication count: 1,282,634

       

      2) Node 2

       

      - number of entries: 15

      - hits: 547

      - misses: 11

      - replication count: 1,299,519

       

      3) Node 3

       

      - number of entries: 14

      - hits: 576

      - misses: 6

      - replication count: 657,917

       

      4) Node 4

       

      - number of entries: 16

      - hits: 548

      - misses: 6

      - replication count: 94,669

       

      Why are replication counts so high? Does Infinispan replicate data when there is a cache hit?

       

      The above setup doesn't use a replication queue (it was removed, since I was getting OOM errors and first wanted to test a simplified configuration).

       

      Thanks,

      Lukasz