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Re: RegexStringComparator problem: Why pattern "u" has the same result as ".*u.*" ? - HBase - [mail # user]
...You can pass a subclass of RegexStringComparator to SingleColumnValueFilter.This subclass can use matches() to suit your needs.RegexStringComparator has been in 0.94 release for so long, its...
   Author: Ted Yu, 2014-06-16, 04:07
Re: Does compression ever improve performance? - HBase - [mail # user]
...Data block encoding enables block cache to hold more entries, therebylifting performance.You can find coverage of data block encoding in this wiki as well:https://blogs.apache.org/hbase/Chee...
   Author: Ted Yu, 2014-06-15, 22:47
Re: if/when zookeeper goes down, how to recover? - HBase - [mail # user]
...Cycling old bits:http://search-hadoop.com/m/WsPol11E4ss1/Zookeeper+ec2&subj=Best+practices+for+using+zookeeper+in+an+Amazon+EC2+environmentOn Jun 14, 2014, at 2:10 PM, S Ahmed  wrote:&n...
   Author: Ted Yu, 2014-06-14, 21:57
[HBASE-11309] Remove USE_POSITION_BEFORE and related code from PrefixTreeSeeker - HBase - [issue]
...This constant is always false in PrefixTreeSeeker.We can remove this variable and the code depending on this boolean to be true.Thanks to Matt Corgan who confirmed the above....
http://issues.apache.org/jira/browse/HBASE-11309    Author: Ted Yu, 2014-06-14, 21:30
Re: master caught a ClosedChannelException - HBase - [mail # user]
...The exception means an attempt is made to invoke or complete an I/Ooperation upon channel that is closed.The ip's in log snippets were different. Have you checked server logs onthose machine...
   Author: Ted Yu, 2014-06-14, 14:28
Re: HFile V2 vs HFile V3 - HBase - [mail # user]
...w.r.t. columnar format, there were discussions in the past:https://issues.apache.org/jira/browse/HBASE-5313?focusedCommentId=13203324&page=com.atlassian.jira.plugin.system.issuetabpanels:com...
   Author: Ted Yu, 2014-06-13, 15:42
[HBASE-11107] Provide utility method equivalent to 0.92's Result.getBytes().getSize() - HBase - [issue]
...Currently user has to write code similar to the following for replacement of Result.getBytes().getSize() :+            Cell[] cellValues = resultRow.rawCells();...
http://issues.apache.org/jira/browse/HBASE-11107    Author: Ted Yu, 2014-06-13, 12:42
Re: [VOTE] Merge branch HBASE-10070 to trunk - HBase - [mail # dev]
...bq. zk-less assignments and region replicas to not be turned on at the sametimeInteresting. Do we need to add a configuration check for the above ?On Thu, Jun 12, 2014 at 2:12 PM, Mikhail An...
   Author: Ted Yu, 2014-06-12, 21:33
Re: Fork protobuf? - HBase - [mail # dev]
...I think we should do this - opening door for further optimizations.CheersOn Wed, Jun 11, 2014 at 8:57 PM, Andrew Purtell  wrote: ...
   Author: Ted Yu, 2014-06-12, 04:12
Re: high load average in one region server - HBase - [mail # user]
...Which hbase release are you using ?Could this be related to how your schema is designed ?Have you run jstack for region server on mphbase2 ?BTW the tables are not easy to read.If you have pi...
   Author: Ted Yu, 2014-06-12, 01:49
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