TestMergeTool is too sensitive to hanging HBase cluster from other test
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Key: HBASE-4264
URL: https://issues.apache.org/jira/browse/HBASE-4264
Project: HBase
Issue Type: Bug
Reporter: Ted Yu
The TestMergeTool.testMergeTool failure in build 2154 was due to the following
check:
{noformat}
HBaseAdmin.checkHBaseAvailable(getConf());
LOG.fatal("HBase cluster must be off-line.");
{noformat}
HBase cluster from some other test(s) was hanging since "merging regions 0 and
1" is the first merge.
The test can be made more robust by calling HBaseAdmin.shutdown() before making
the first merge.
In Merge.java, -1 is returned in 5 places. I think we should return different
values so that it is more obvious what the cause was.
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