Guangxu Cheng created HBASE-16462:
-------------------------------------
Summary: Test failure TestRSGroupsBase.testGroupBalance
Key: HBASE-16462
URL: https://issues.apache.org/jira/browse/HBASE-16462
Project: HBase
Issue Type: Bug
Reporter: Guangxu Cheng
show this fail when TestRSGroupsBase
{code}
testGroupBalance(org.apache.hadoop.hbase.rsgroup.TestRSGroups) Time elapsed:
309.517 sec <<< FAILURE!
java.lang.AssertionError: Waiting timed out after [300,000] msec
at org.junit.Assert.fail(Assert.java:88)
at org.apache.hadoop.hbase.Waiter.waitFor(Waiter.java:209)
at org.apache.hadoop.hbase.Waiter.waitFor(Waiter.java:143)
at
org.apache.hadoop.hbase.HBaseTestingUtility.waitFor(HBaseTestingUtility.java:3816)
at
org.apache.hadoop.hbase.rsgroup.TestRSGroupsBase.testGroupBalance(TestRSGroupsBase.java:434)
{code}
The exception may be caused by a bug.
{code:title=TestRSGroupsBase.java|borderStyle=solid}
rsGroupAdmin.balanceRSGroup(newGroupName);
TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {
@Override
public boolean evaluate() throws Exception {
for (List<String> regions :
getTableServerRegionMap().get(tableName).values()) {
if (2 != regions.size()) {
return false;
}
}
return true;
}
});
{code}
The new Group has one table and three servers, and the table has six regions.
Beginning, all regions are located on a single server.
After balance, regions distributed on three server, preferably each server on
two region.
However,this is not absolute. Maybe one server has one region, another server
has three regions.
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