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RE: issue about search speed and rowkey - HBase - [mail # user]
...decrease cache size (say, 1000)  and increase batch or just set it as default if #qualifiers in a row is not too many.   From: ch huang [mailto:[EMAIL PROTECTED]]  Sent: Wedne...
   Author: Lu, Wei, 2013-08-07, 12:11
[expand - 1 more] - RE: ‘split’ start/stop key range of large table regions for more map tasks - HBase - [mail # user]
...Hi, Michael,  Yes, I read some stuff in blogs and I did pre-split + large max region file size to avoid on line split. Also set region size large to reduce region server heap size, so I...
   Author: Lu, Wei, 2013-03-26, 02:33
[expand - 2 more] - RE: region server down when scanning using mapreduce - HBase - [mail # user]
...We turned the block cache to false and tried again, regionserver still crash one after another. There are a lot of scanner lease time out, and then master log info: RegionServer ephemeral n...
   Author: Lu, Wei, 2013-03-12, 08:12
[resend] region server of -ROOT- table is dead, but not reassigned - HBase - [mail # user]
...Hi, all,    When I scan any table, I got:    13/02/20 05:16:45 INFO ipc.HBaseRPC: Server at Rs1/10.20.118.3:60020 could not be reached after 1 tries, giving up.  ......
   Author: Lu, Wei, 2013-02-20, 05:36
[expand - 1 more] - RE: region server of -ROOT- table is dead, but not reassigned - HBase - [mail # user]
...By the way, the hbase version I am using is 0.92.1-cdh4.0.1  From: Lu, Wei Sent: Wednesday, February 20, 2013 1:28 PM To: [EMAIL PROTECTED] Subject: region server of -ROOT- table is dea...
   Author: Lu, Wei, 2013-02-20, 05:30
0.92 client fail to log in when using JNI - HBase - [mail # user]
...Hi,  When I use C++ to call 0.92 HBase java APIs, it failed to log in. I tried s imilar operation by directly using Java Api, and they succeed. So, is there any difference between using...
   Author: Lu, Wei, 2012-09-14, 03:50
[expand - 1 more] - RE: We cannot insert data to external table right? - Hive - [mail # user]
...Hi Bejoy.K.S  I can understand that we can create external table on hdfs, and we can also select/insert data for the external table. The question is I need to create the external table ...
   Author: Lu, Wei, 2012-03-14, 12:17
[expand - 1 more] - RE: Hive-645 is slow to insert query results to mysql - Hive - [mail # user]
...Hi Viral and Bejoy.K.S  I can see that both of you are suggesting Sqoop, and I will have a try ☺.  Thanks, Wei  From: Bejoy Ks [mailto:[EMAIL PROTECTED]] Sent: Saturday, March...
   Author: Lu, Wei, 2012-03-12, 01:17
[expand - 1 more] - re: Why Move Operations after MapReduce are in sequential? - Hive - [mail # user]
...Hi Bejoy.K.S,    Yes, there are two steps and as for my query, there will be 6 steps with one mapreduce and 5 move operations. My question is why the 5 move operations are executed...
   Author: Lu, Wei, 2012-03-07, 17:01
[expand - 2 more] - RE: how to split query result into several smaller tables without creating temp table?? - Hive - [mail # user]
...Sorry, query 1 should be: create table tmp__imp as select requestbegintime, count(*) from impressions2 where requestbegintime='1239572956000';  Do you have any idea about the failure of...
   Author: Lu, Wei, 2012-03-07, 02:13
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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