[HBASE-11341] ZKProcedureCoordinatorRpcs should respond only to members - ASF JIRA

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ZKProcedureCoordinatorRpcs nodeCreated() responds to events of every znode under the procedure and not only members.

INFO: Received created event: /hbase/<proc>/reached/<instance>
INFO: Received created event: /hbase/<proc>/reached/<instance>/<member>

the result is a warning (no other side effects)

WARN [main-EventThread] procedure.ProcedureCoordinator: Member '<instance>' is trying to release an unknown procedure 'reached

apurtell posted in ~~HBASE-10926~~ the steps to reproduce it:

$ cd ./src/hbase
$ git checkout master
$ mvn -DskipTests clean install

In one console:

$ ./bin/hbase master start

In another console:

$ ./bin/hbase org.apache.hadoop.hbase.util.LoadTestTool -num_keys 100000 \
    -read 10:100 -write 1:100:10

In a third console:

$ ./bin/hbase shell
hbase> while true do ; flush 'cluster_test' ; sleep 10 ; end