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[HADOOP-10466] Lower the log level in UserGroupInformation - Hadoop - [issue]
...That's more or less the continuation of HADOOP-10015... Some info should be debug if we apply the same policy....
http://issues.apache.org/jira/browse/HADOOP-10466    Author: Nicolas Liochon, 2014-06-30, 09:18
[HADOOP-10095] Performance improvement in CodecPool - Hadoop - [issue]
...CodecPool shows up when profiling HBase with a mixed workload (it says we spend 1% of the time there).It could be a profiler side effect, but on the other hand we can save some 'Map#contains...
http://issues.apache.org/jira/browse/HADOOP-10095    Author: Nicolas Liochon, 2014-02-24, 20:58
[HADOOP-9973] wrong dependencies - Hadoop - [issue]
...See HBASE-9557 for the impact: for some of them, it seems it's pushing these dependencies to the client applications even if they are not used.mvn dependency:analyze -pl hadoop-common[WA...
http://issues.apache.org/jira/browse/HADOOP-9973    Author: Nicolas Liochon, 2013-09-17, 17:50
[expand - 1 more] - Re: rack awarness unexpected behaviour - Hadoop - [mail # user]
...When you rebalance, the block is fully written, so the writer locality does not have to be taken into account (there is no writer anymore), hence it can rebalance across the racks. That's wh...
   Author: Nicolas Liochon, 2013-08-22, 08:57
Re: replication factor - Hadoop - [mail # user]
...I would recommend this: http://www.aosabook.org/en/hdfs.html  Nicolas   On Tue, Feb 5, 2013 at 6:28 PM, Lin Ma  wrote:  ...
   Author: Nicolas Liochon, 2013-02-05, 17:34
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