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[MAPREDUCE-6829] Add peak memory usage counter for each task - MapReduce - [issue]
...Each task has counters PHYSICAL_MEMORY_BYTES and VIRTUAL_MEMORY_BYTES, which are snapshots of memory usage of that task. They are not sufficient for users to understand peak memory usage by ...
http://issues.apache.org/jira/browse/MAPREDUCE-6829    Author: Yufei Gu , 2018-07-10, 23:52
[VOTE] Release Apache Hadoop 3.0.2 (RC0) - MapReduce - [mail # dev]
...Thanks Lei for working on this!+1 (non-binding)   - Downloaded the binary tarball and verified the checksum.   - Started a pseudo cluster inside one docker container ...
   Author: Yufei Gu , 2018-04-06, 23:40
[VOTE] Release Apache Hadoop 3.1.0 (RC1) - MapReduce - [mail # dev]
...Thanks Wangda for working on this!+1 (non-binding)   - Downloaded the binary tarball and verified the checksum.   - Started a pseudo cluster inside one docker container&n...
   Author: Yufei Gu , 2018-03-30, 05:37
[VOTE] Release Apache Hadoop 3.0.1 (RC1) - MapReduce - [mail # dev]
...Thanks Eddy!+1 (non-binding)   - Downloaded the hadoop-3.0.1.tar.gz fromhttp://home.apache.org/~lei/hadoop-3.0.1-RC1/   - Started a pseudo cluster inside one docker conta...
   Author: Yufei Gu , 2018-03-20, 21:07
[DISCUSS] official docker image(s) for hadoop - MapReduce - [mail # dev]
...It would be very helpful for testing the RC. To vote a RC, committers andPMCs usually spend lots of time to compile, deploy the RC, do severalsanity tests, then +1 for the RC. The docker ima...
   Author: Yufei Gu , 2017-09-13, 18:39
[MAPREDUCE-6878] Method length of MRAppMaster #serviceInit() is too long - MapReduce - [issue]
...Reported by style checking: Method length is 216 lines (max allowed is 150). [MethodLength]...
http://issues.apache.org/jira/browse/MAPREDUCE-6878    Author: Yufei Gu , 2017-04-19, 18:22
[VOTE] Release Apache Hadoop 2.8.0 (RC3) - MapReduce - [mail # dev]
...Thank Junping for working on this.I verified the following:1. Verified the md5 of binary tar ball.2. Deployed on a 4 node cluster with 3 node managers.3. Configured fair scheduler4. Ran Pi j...
   Author: Yufei Gu , 2017-03-21, 18:04
[MAPREDUCE-6858] HistoryFileManager thrashing due to high volume jobs - MapReduce - [issue]
...JHS log shows that it tried to move the same *.jhist twice, and the second moving causes FileNotFoundException's. JHS scans "done_intermediate" dir for files to process and adds them to a th...
http://issues.apache.org/jira/browse/MAPREDUCE-6858    Author: Yufei Gu , 2017-03-08, 19:40
[VOTE] Release Apache Hadoop 3.0.0-alpha2 RC0 - MapReduce - [mail # dev]
...Hi Andrew,Thanks for working on this.+1 (Non-Binding)1. Downloaded the binary and verified the md5.2. Deployed it on 3 node cluster with 1 ResourceManager and 2 NodeManager.3. Set YARN to us...
   Author: Yufei Gu , 2017-01-24, 22:32
[MAPREDUCE-6715] Fix Several Unsafe Practices - MapReduce - [issue]
...Null Dereference        CleanupQueue.java:139Weak SecurityManager Check: Overridable Method  LocalDistributedCacheManager.java:229Null Dereference     &nbs...
http://issues.apache.org/jira/browse/MAPREDUCE-6715    Author: Yufei Gu , 2017-01-06, 17:38