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[MAPREDUCE-5873] Shuffle bandwidth computation includes time spent waiting for maps - MapReduce - [issue]
...Currently ShuffleScheduler in ReduceTask JVM status displays bandwidth. Its definition however is confusing because it captures the time where there is no copying because there is a pause be...
http://issues.apache.org/jira/browse/MAPREDUCE-5873    Author: Siqi Li, 2014-10-16, 14:59
[MAPREDUCE-6059] Speed up history server startup time - MapReduce - [issue]
...When history server starts up, It scans every history directories and put all history files into a cache, whereas this cache only stores 20K recent history files. Therefore, it is wasting a ...
http://issues.apache.org/jira/browse/MAPREDUCE-6059    Author: Siqi Li, 2014-08-28, 19:22
[MAPREDUCE-6047] Introduce localization phase for mapreduce jobs - MapReduce - [issue]
...we have been experienced lots of task timeout due to localization of a large number of files. It would be great if we have an additional phase that keep track of how many files have been loc...
http://issues.apache.org/jira/browse/MAPREDUCE-6047    Author: Siqi Li, 2014-08-22, 19:11
[MAPREDUCE-5517] enabling uber mode with 0 reducer still requires mapreduce.reduce.memory.mb to be less than yarn.app.mapreduce.am.resource.mb - MapReduce - [issue]
...Since there is no reducer, the memory allocated to reducer is irrelevant to enable uber mode of a job...
http://issues.apache.org/jira/browse/MAPREDUCE-5517    Author: Siqi Li, 2014-07-08, 16:04
[MAPREDUCE-5771] Measure bw of a single copy call and display the correct aggregated bw - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-5771    Author: Siqi Li, 2014-02-27, 19:48
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