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Re: Export API using start and stop row key ! - HBase - [mail # user]
...You'd need to use 0.94 (or CDH4.2+ since you are mentioning being on CDH) to have access to TableInputFormat.SCAN_ROW_START and SCAN_ROW_STOP then all you need to do is to copy Export's code...
   Author: Jean-Daniel Cryans, 2013-09-25, 17:52
[HBASE-9642] AM ZK Workers stuck doing 100% CPU on HashMap.put - HBase - [issue]
...I just noticed on my test cluster that my master is using all my CPUs even though it's completely idle. 5 threads are doing this:"AM.ZK.Worker-pool2-t34" daemon prio=10 tid=0x00007f68ac17680...
http://issues.apache.org/jira/browse/HBASE-9642    Author: Jean-Daniel Cryans, 2013-09-25, 02:21
[HBASE-9591] [replication] getting "Current list of sinks is out of date" all the time when a source is recovered - HBase - [issue]
...I tried killing a region server when the slave cluster was down, from that point on my log was filled with:2013-09-20 00:31:03,942 INFO  [regionserver60020.replicationSource,1] org.apac...
http://issues.apache.org/jira/browse/HBASE-9591    Author: Jean-Daniel Cryans, 2013-09-24, 22:16
[HBASE-9314] Dropping a table always prints a TableInfoMissingException in the master log - HBase - [issue]
...Everytime I drop a table I get the same stack trace in the master's log:2013-08-22 23:11:31,939 DEBUG [MASTER_TABLE_OPERATIONS-jdec2hbase0403-1:60000-0] org.apache.hadoop.hbase.master.handle...
http://issues.apache.org/jira/browse/HBASE-9314    Author: Jean-Daniel Cryans, 2013-09-24, 21:32
Re: Hbase Compression - HBase - [mail # user]
...On flushing we do some cleanup, like removing deleted data that was already in the MemStore or extra versions. Could it be that you are overwriting recently written data?  48MB is the s...
   Author: Jean-Daniel Cryans, 2013-09-24, 17:19
Re: [VOTE] The 4th hbase-0.96.0 release candidate is available for download - HBase - [mail # dev]
...-1, HBASE-9642 seems like something that would kill clusters with a lot of region movements or just long running ones.  J-D   On Sat, Sep 21, 2013 at 3:50 PM, Stack  wrote: &n...
   Author: Jean-Daniel Cryans, 2013-09-24, 01:08
Random reads are 5x faster in 0.96.0! Or not - HBase - [mail # dev]
...Hey devs,  I was testing performance of 0.96.0RC3 vs 0.94.12 and found that random reads are 5x faster out of the box in the former, party! But wait, no, HBASE-7008 disabled Nagle's alg...
   Author: Jean-Daniel Cryans, 2013-09-24, 00:10
Re: [VOTE] The 3rd hbase 0.94.12 release candidate is available for download - HBase - [mail # dev]
...+1  I'm currently using it as a store for opentsdb in a pseudo-distributed mode.  I also did some PE testing on a cluster with 5 nodes when trying to compare thread and memory usag...
   Author: Jean-Daniel Cryans, 2013-09-23, 18:34
Re: Hbase ports - HBase - [mail # user]
...On Mon, Sep 23, 2013 at 9:14 AM, John Foxinhead wrote:    hbase.regionserver.info.port  The port for the HBase RegionServer web UI Set to -1 if you do not want the RegionServe...
   Author: Jean-Daniel Cryans, 2013-09-23, 18:14
[HBASE-9601] Use a faster balancer when the imbalance is in the hundreds of regions - HBase - [issue]
...Something I'm noticing is that the new balancer is good at optimizing the balance when it needs to move a handful of regions, but once the imbalance is in the hundreds then it might be bette...
http://issues.apache.org/jira/browse/HBASE-9601    Author: Jean-Daniel Cryans, 2013-09-20, 22:00
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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