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Re: Time until a datanode is marked as dead - Hadoop - [mail # user]
...Note that there is a difference between being dead and being stale. stalemeans "avoid as much as possible" while dead means "avoid absolutely ANDinitiate a recovery, i.e. copy all the data (...
   Author: Nicolas Liochon, 2015-01-26, 16:02
[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
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB