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Re: Consistency issue when a Put is in the memstore but a more recent Delete is cleaned in a major compaction - HBase - [mail # dev]
...On Tue, Mar 19, 2013 at 6:50 PM, lars hofhansl  wrote:  The bulk load case doesn't have those properties. The Delete is done in order, but it gets into an HFile before the Put is f...
   Author: Jean-Daniel Cryans, 2013-03-20, 18:01
Re: Does HBase RegionServer benefit from OS Page Cache - HBase - [mail # user]
...First, MSLAB has been enabled by default since 0.92.0 as it was deemed stable enough. So, unless you are on 0.90, you are already using it.  Also, I'm not sure why you are referencing t...
   Author: Jean-Daniel Cryans, 2013-03-20, 17:30
Consistency issue when a Put is in the memstore but a more recent Delete is cleaned in a major compaction - HBase - [mail # dev]
...Hey guys,  I looked around a bit and couldn't find a jira directly related to this. Here's an example of inconsistency in every HBase version (although the shell won't let you do it in ...
   Author: Jean-Daniel Cryans, 2013-03-19, 20:42
Re: HBase M/R with M/R and HBase not on same cluster - HBase - [mail # user]
...Checkout how CopyTable does it: https://github.com/apache/hbase/blob/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/CopyTable.java  J-D  On Mon, Mar 18, 2013 at...
   Author: Jean-Daniel Cryans, 2013-03-18, 22:26
[HBASE-7530] [replication] Work around HDFS-4380 else we get NPEs - HBase - [issue]
...I've been spending a lot of time trying to figure the recent test failures related to replication. One I seem to be constantly getting is this NPE:2013-01-09 10:08:56,912 ERROR [RegionServer...
http://issues.apache.org/jira/browse/HBASE-7530    Author: Jean-Daniel Cryans, 2013-03-13, 22:48
[HBASE-5359] Alter in the shell can be too quick and return before the table is altered - HBase - [issue]
...This seems to be a recent change in behavior but I'm still not sure where it's coming from.The shell is able to call HMaster.getAlterStatus before the TableEventHandler is able call AM.setRe...
http://issues.apache.org/jira/browse/HBASE-5359    Author: Jean-Daniel Cryans, 2013-03-13, 04:43
Re: GC performance/benchmark - HBase - [mail # user]
...As a datapoint, here's what I see most of the time and it happens every couple of seconds:  GC [ParNew: 115977K->13041K(118016K), 0.0483400 secs] 18741375K->18641240K(25337088K), ...
   Author: Jean-Daniel Cryans, 2013-03-07, 23:06
Re: reason to do major compaction after split - HBase - [mail # dev]
...Clean the parent would be another one.  J-D  On Thu, Mar 7, 2013 at 10:50 AM, Sergey Shelukhin  wrote:...
   Author: Jean-Daniel Cryans, 2013-03-07, 18:54
Re: Is there a way to view multiple versions of a cell in the HBase shell? - HBase - [mail # user]
...Hey Natty,  Have you tried setting VERSIONS?  J-D  On Thu, Mar 7, 2013 at 9:08 AM, Jonathan Natkins  wrote:...
   Author: Jean-Daniel Cryans, 2013-03-07, 17:21
[HBASE-6347] -ROOT- and .META. are stale in table.jsp if they moved - HBase - [issue]
...table.jsp does not use a lookup method on CatalogTracker that does not force a refresh of the cache, thus it can get a stale location if ROOT or .META. moved and the master hasn't tried to a...
http://issues.apache.org/jira/browse/HBASE-6347    Author: Jean-Daniel Cryans, 2013-03-05, 08:29
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