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HBase, mail # dev - 0.96.0 keep logging "Memstore is above high water mark"


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0.96.0 keep logging "Memstore is above high water mark"
Jean-Marc Spaggiari 2013-09-02, 19:04
While running PE with 10 clients, server keep logging:
2013-09-02 14:56:59,919 WARN  [RpcServer.handler=5,port=44439]
regionserver.MemStoreFlusher: Memstore is above high water mark and
block 2362ms
2013-09-02 14:56:59,919 WARN  [RpcServer.handler=18,port=44439]
regionserver.MemStoreFlusher: Memstore is above high water mark and
block 2363ms

Then when test is over:
2013-09-02 14:57:02,280 WARN
[NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181] server.NIOServerCnxn:
caught end of stream exception
EndOfStreamException: Unable to read additional data from client
sessionid 0x140dfdfc6270044, likely client has closed socket
    at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:220)
    at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208)
    at java.lang.Thread.run(Thread.java:662)

/hbase-0.96.0$ cat logs/hbase-jmspaggiari-master-t430s.log  | grep
"Memstore is above high water mark and block" | wc
   3555   49770  514558
/hbase-0.96.0$ cat logs/hbase-jmspaggiari-master-t430s.log  | grep
"Unable to read additional data from client sessionid" | wc
    102    1530   12852

I guess it's only because of PE, but is this something which need to
be looked at?

JM