[HBASE-11341] ZKProcedureCoordinatorRpcs should respond only to members

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.99.0, 0.94.20, 0.98.3
• Fix Version/s: 0.99.0, 0.94.21, 0.98.4
• Assignee: Matteo Bertozzi
• Reporter: Matteo Bertozzi
• Created: 13/Jun/14 10:37
• Updated: 11/Jul/14 06:26
• Resolved: 17/Jun/14 10:44

Description

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