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[expand - 2 more] - Re: GC recommendations for large Region Server heaps - HBase - [mail # user]
...yes, as Varun said, I am also decrease block cache ratio. because we always do random read, so if block cache size is too large, lots of blocks were promoted, then Full GC is very frequent. ...
   Author: Azuryy Yu, 2013-07-10, 03:24
[expand - 1 more] - Re: [ANNOUNCE] HBase 0.94.9 is available for download - HBase - [mail # user]
...yes, Lars, that's what I want to say. On Jul 6, 2013 4:07 PM, "lars hofhansl"  wrote:  ...
   Author: Azuryy Yu, 2013-07-06, 08:37
Re: question about clienttrace logs in hdfs and shortcircuit read - HBase - [mail # user]
...if SCR take effect, you can see releated logs in the datanode log.  On Jul 4, 2013 2:26 PM, "Viral Bajaria"  wrote:  ...
   Author: Azuryy Yu, 2013-07-04, 08:57
Re: unbalance number fo region in cluster - HBase - [mail # user]
...I supposed load balancer is enabled and there is no pre-split.  LB run periodicly, (5 mininutes by default), so after insert bulk data into HBase, the table is unbalance but there will ...
   Author: Azuryy Yu, 2013-07-04, 05:54
Re: HBase replication - EOF while reading - HBase - [mail # user]
...Generally, It's network issue to root cause these problems.   On Thu, Jul 4, 2013 at 12:12 AM, Patrick Schless wrote:  ...
   Author: Azuryy Yu, 2013-07-04, 01:28
[expand - 1 more] - Re: MapReduce job with mixed data sources: HBase table and HDFS files - HBase - [mail # user]
...Hi, 1) It cannot input two different cluster's data to a MR job. 2) If your data locates in the same cluster, then:      conf.set(TableInputFormat.SCAN, TableMapReduceUtil.con...
   Author: Azuryy Yu, 2013-07-04, 01:02
[expand - 1 more] - Re: data loss after cluster wide power loss - HBase - [mail # user]
...Thanks Dave.   On Tue, Jul 2, 2013 at 8:34 AM, Dave Latham  wrote:  ...
   Author: Azuryy Yu, 2013-07-02, 01:02
RE: Profiling map reduce jobs? - HBase - [mail # user]
...I just advice to use MultipleOutputFormat, instead of MultipleOurput.write  On Jun 29, 2013 9:16 PM, "David Poisson"  wrote:  ...
   Author: Azuryy Yu, 2013-06-29, 14:34
[expand - 3 more] - Re: 答复: flushing + compactions after config change - HBase - [mail # user]
...Hi Viral, the following are all needed for CMS:  -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseCMSCompactAtFullCol...
   Author: Azuryy Yu, 2013-06-28, 01:09
[expand - 1 more] - Re: Problems while exporting from Hbase to CSV file - HBase - [mail # user]
...Sorry, maybe Phonex is not suitable for you.   On Thu, Jun 27, 2013 at 3:21 PM, Azuryy Yu  wrote:  ...
   Author: Azuryy Yu, 2013-06-27, 07:22
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NEW: Monitor These Apps!
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