Affects Version/s: 0.21.0
Fix Version/s: None
org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal fails sometimes in branch 0.21.
The test fails with following error:
Testcase: testDTRenewal took 15.606 sec
renew wasn't called as many times as expected expected:<5> but was:<4>
junit.framework.AssertionFailedError: renew wasn't called as many times as expected expected:<5> but was:<4>
In run of 5, the test failed twice.