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[expand - 2 more] - Re: You Are Dead Exception due to promotion failure - HBase - [mail # user]
...It reads that it spent 89 seconds doing a CMS concurrent mark, but really just spent 14 seconds of user CPU and 4 seconds of system CPU doing it. Where are the other 70 seconds? It's often j...
   Author: Jean-Daniel Cryans, 2013-11-01, 15:27
[expand - 1 more] - Re: HBase ShutdownHook problem - HBase - [mail # user]
...Is it just me or your classpath contains both Hadoop 1.2.1 and Hadoop 2.0.5-alpha jars? You might want to get that cleared up first.  J-D   On Wed, Oct 30, 2013 at 12:48 AM, Salih ...
   Author: Jean-Daniel Cryans, 2013-10-31, 20:26
[HBASE-8713] [hadoop1] Log spam each time the WAL is rolled - HBase - [issue]
...Testing 0.95.1 RC1, I see these 2 lines every time the WAL is rolled:2013-06-07 17:19:33,182 INFO  [RS_CLOSE_REGION-ip-10-20-46-44:50653-1] util.FSUtils: FileSystem doesn't support getD...
http://issues.apache.org/jira/browse/HBASE-8713    Author: Jean-Daniel Cryans, 2013-10-19, 20:27
[HBASE-9744] Set io.serializations correctly in HFileOutputFormat.configureIncrementalLoad - HBase - [issue]
...HFileOutputFormat.configureIncrementalLoad is not setting all the io serializations correctly so custom bulk loaders (like ImportTsv) need to set it. Simple fix, just add what's missing.In c...
http://issues.apache.org/jira/browse/HBASE-9744    Author: Jean-Daniel Cryans, 2013-10-11, 13:59
Re: HBase Random Read latency > 100ms - HBase - [mail # user]
...On Wed, Oct 9, 2013 at 10:59 AM, Vladimir Rodionov wrote:   See "OS cache + SCR" VS "HBase CRC over OS cache+SCR" in this document I shared some time ago: https://docs.google.com/spread...
   Author: Jean-Daniel Cryans, 2013-10-09, 18:09
[HBASE-9428] Regex filters are at least an order of magnitude slower since 0.94.3 - HBase - [issue]
...I found this issue after debugging a performance problem on an OpenTSDB cluster, it was basically unusable after an upgrade from 0.94.2 to 0.94.6. It was caused by HBASE-7279 (ping Lars Hofh...
http://issues.apache.org/jira/browse/HBASE-9428    Author: Jean-Daniel Cryans, 2013-10-08, 03:41
Re: Upcoming HBase bay area user and dev meetups - HBase - [mail # dev]
...While we're on the topic of upcoming meetups, there's also a meetup at Facebook's NYC office the week of Strata/Hadoop World (10/28). There's still room for about 50 attendees.  http://...
   Author: Jean-Daniel Cryans, 2013-10-07, 21:15
Re: hbase.master parameter? - HBase - [mail # user]
...hbase.master was removed when we added zookeeper, so now a client will do a lookup in ZK instead of talking to a pre-determined master. So in a way, hbase.zookeeper.quorum is what replaces h...
   Author: Jean-Daniel Cryans, 2013-10-04, 16:22
[HBASE-9707] [ref guide] make the client configurations easier to find - HBase - [issue]
...From irc:10:15 < mgmuscari> may i suggest a note in the quickstart guide10:16 < mgmuscari> something like "For information on configuring your HBase client to connect to a remote...
http://issues.apache.org/jira/browse/HBASE-9707    Author: Jean-Daniel Cryans, 2013-10-03, 18:34
Re: HBase stucked because HDFS fails to replicate blocks - HBase - [mail # user]
...I like the way you were able to dig down into multiple logs and present us the information, but it looks more like GC than an HDFS failure. In your region server log, go back to the first FA...
   Author: Jean-Daniel Cryans, 2013-10-03, 17:42
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