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Re: Altering table column family attributes without disabling the table - HBase - [mail # user]
...You could always set hbase.online.schema.update.enable to true on your master, restart it (but not the cluster), and you could do what you are describing... but it's a risky feature to use b...
   Author: Jean-Daniel Cryans, 2013-07-23, 20:06
[HBASE-9021] Create a unit test for ReplicationHLogReaderManager - HBase - [issue]
...Currently ReplicationHLogReaderManager is only tested indirectly in TestReplicationKillRS tests, I think it would be nice to have some more lower level coverage....
http://issues.apache.org/jira/browse/HBASE-9021    Author: Jean-Daniel Cryans, 2013-07-23, 05:02
[HBASE-8961] Make TestReplicationQueueFailover less integration-y by splitting it up - HBase - [issue]
...Currently TestReplicationQueueFailover.queueFailover does this: start loading a table kill a RS on the master midway kill a a RS on the slave a few seconds after that wait for it all to blow...
http://issues.apache.org/jira/browse/HBASE-8961    Author: Jean-Daniel Cryans, 2013-07-21, 03:56
[HBASE-8975] NPE/HTTP 500 when opening the master's web UI too early - HBase - [issue]
...I'm getting an ugly NPE when trying to open the master's web UI too fast after starting it:java.lang.NullPointerException at org.apache.hadoop.hbase.master.HMaster.getCoprocessors(HMaster.ja...
http://issues.apache.org/jira/browse/HBASE-8975    Author: Jean-Daniel Cryans, 2013-07-19, 19:27
[HBASE-8987] ProtobufUtil.toException doesn't handle plain RemoteException, gets a NoSuchMethodException - HBase - [issue]
...From this build: https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/622/testReport/junit/org.apache.hadoop.hbase.replication/TestReplicationKillMasterRSCompressed/killOneMasterRS/The ...
http://issues.apache.org/jira/browse/HBASE-8987    Author: Jean-Daniel Cryans, 2013-07-19, 16:40
[HBASE-8855] TestTableInputFormatScan1/2 fail semi-silently with the hadoop 2 profile - HBase - [issue]
...It looks like TestTableInputFormatScan1 and TestTableInputFormatScan2 never complete and surefire doesn't complain about it. Sure, you may see this:Tests run: 6, Failures: 5, Errors: 1, Skip...
http://issues.apache.org/jira/browse/HBASE-8855    Author: Jean-Daniel Cryans, 2013-07-19, 01:21
Re: Bulk Load on HBase 0.95.1-hadoop1 - HBase - [mail # user]
...0.95.1 is a developer preview release, if you are just starting with HBase please grab the stable release from 0.94, for example http://mirrors.sonic.net/apache/hbase/stable/  J-D  ...
   Author: Jean-Daniel Cryans, 2013-07-18, 20:55
[expand - 3 more] - Re: Memory leak in HBase replication ? - HBase - [mail # user]
...Yes... your master cluster must have helluva backup to replicate :)  Seems to make a good argument to lower the default setting. What do you think?  J-D   On Wed, Jul 17, 2013...
   Author: Jean-Daniel Cryans, 2013-07-17, 22:40
Re: several doubts about region split? - HBase - [mail # user]
...Inline.  J-D  On Wed, Jul 17, 2013 at 7:10 AM, yonghu  wrote:  Usually a matter of 1-2 seconds.   It's not a load problem it's a data problem. We're splitting when w...
   Author: Jean-Daniel Cryans, 2013-07-17, 16:38
[HBASE-3732] New configuration option for client-side compression - HBase - [issue]
...We have a case here where we have to store very fat cells (arrays of integers) which can amount into the hundreds of KBs that we need to read often, concurrently, and possibly keep in cache....
http://issues.apache.org/jira/browse/HBASE-3732    Author: Jean-Daniel Cryans, 2013-07-17, 13:47
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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