hi,all: I'm useing hbase 1.2.3 zookeeper 3.4.9 hadoop2.7.3 for test . there is some table with few data. and I use Phoenix4.9 for hbase1.2 as JDBC level . recently I got too many connections error , and I rise zookeeper's maxClientCnxns=300. but few days later I got the error again. and I fond one regionserver always create new connection to zookeeper. so I stop the regionserver. then I found another region will do the samething again ,always make new connection to zookeeper. I don't know why ? and from the web site I found something unusual:
only one region server memstore keep growing(dev1). If I stop dev1 , another regionserver maybe dev5 will be the same.?? 2016-12-16 lk_hbase