There are some container diagnostic messages currently malformed, like below
017-12-05 11:43:21,319 INFO mapreduce.Job: map 28% reduce 0%
2017-12-05 11:43:22,345 INFO mapreduce.Job: Task Id : attempt_1512384455800_0003_m_000012_0, Status : FAILED
[2017-12-05 11:43:21.265]Container Killed to make room for Guaranteed Container[2017-12-05 11:43:21.265]
[2017-12-05 11:43:21.265]Container is killed before being launched.
such logs are presented both in console and RM UI, we need to remove the duplicated trailing timestamp from the log message. This is due to the mis-use of addDiagnostics function in these places.