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[HBASE-12915] Disallow small scan with batching - HBase - [issue]
...If user sets batching in Scan object, ClientSmallScanner may return unexpected result because data from same row may appear in multiple Result objects but ClientSmallScanner considers differ...
http://issues.apache.org/jira/browse/HBASE-12915    Author: Ted Yu, 2015-01-27, 01:04
[HBASE-12923] ResultScanner is not closed in ModifyTableHandler#removeReplicaColumnsIfNeeded() - HBase - [issue]
...In ModifyTableHandler#removeReplicaColumnsIfNeeded():      ResultScanner resScanner = metaTable.getScanner(scan);      for (Result result : resScanner...
http://issues.apache.org/jira/browse/HBASE-12923    Author: Ted Yu, 2015-01-26, 21:48
Re: TableMapReduceUtil.initTableMapperJob - HBase - [mail # dev]
...Please open a new JIRA and attach your patch there.CheersOn Mon, Jan 26, 2015 at 6:07 AM, William Temperley wrote: ...
   Author: Ted Yu, 2015-01-26, 17:33
[expand - 5 more] - Re: Very high read rate in a single RegionServer - HBase - [mail # user]
...Please try to determine how much percent of the reqs/sec metric is due toread.At this level, do your queries / jobs get slower ?CheersOn Sun, Jan 25, 2015 at 6:48 PM, Pun Intended wrote:&nbs...
   Author: Ted Yu, 2015-01-26, 04:45
[expand - 1 more] - Re: Delete a region from hbase - HBase - [mail # user]
...The benefit of online merge is that the table stays online for the durationof region merge.You can use hbase shell or Java API to offline region.In HBaseAdmin, we have:  public voi...
   Author: Ted Yu, 2015-01-25, 02:13
Re: Please don't skip fixes to 0.98 - HBase - [mail # dev]
...HBASE-10499 has been integrated to all branches.Will pay attention in the future.CheersOn Fri, Jan 23, 2015 at 12:44 PM, Andrew Purtell wrote: ...
   Author: Ted Yu, 2015-01-23, 22:05
[HBASE-7847] Use zookeeper multi to clear znodes - HBase - [issue]
...In ZKProcedureUtil, clearChildZNodes() and clearZNodes(String procedureName) should utilize zookeeper multi so that they're atomic...
http://issues.apache.org/jira/browse/HBASE-7847    Author: Ted Yu, 2015-01-23, 20:14
[expand - 1 more] - Re: HFileOutputFormat2.configureIncrementalLoad and HREGION_MAX_FILESIZE - HBase - [mail # user]
...bq. RS service the same N rows, but in 2 regions of N/2 rows eachIn the above case the client would be able to issue parallel scans on thisserver.CheersOn Fri, Jan 23, 2015 at 11:21 AM, Tom ...
   Author: Ted Yu, 2015-01-23, 19:33
Re: Disabling the HBase table - HBase - [mail # user]
...Can you pastebin master / region server log around the time table wasdisabled ?BTW can you rephrase '9 lakh records' ? I don't know how many records thatis.CheersOn Thu, Jan 22, 2015 at 11:2...
   Author: Ted Yu, 2015-01-23, 16:45
[HBASE-12848] Utilize Flash storage for WAL - HBase - [issue]
...One way to improve data ingestion rate is to make use of Flash storage.HDFS is doing the heavy lifting - see HDFS-7228.We assume an environment where:1. Some servers have a mix of flash, e.g...
http://issues.apache.org/jira/browse/HBASE-12848    Author: Ted Yu, 2015-01-23, 01:55
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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