| Log Message: |
Initial support for testing multiple masters in hbase-89
Summary: Porting some plumbing from Apache HBase trunk to hbase-89 that would
allow to test multiple masters (e.g. various failure scenarios). To do that we
need to maintain a list of thread objects, each holding a reference to an
HMaster, instead of just a single HMaster reference. No multi-master tests are
being added yet -- before that is done, master znode wait needs to be moved out
from the constructor. However, I'd like to get this in as a first step towards
testing HBase 89 master more thoroughly. Most of the code in this diff comes
directly from Apache HBase trunk.
Test Plan: Existing unit tests pass.
Reviewers: kranganathan, jgray, nspiegelberg
Reviewed By: kranganathan
CC: hbase-eng@lists, kranganathan, mbautin
Differential Revision: 336813
Revert Plan: OK
|
hbase/branches/0.89/src/main/java/org/apache/hadoop/hbase/HConstants.java