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[HBASE-13151] IllegalArgumentException in compaction when table has a namespace - HBase - [issue]
...In the PartitionedMobFileCompactor we have a bulk load path, currently it directly use table.getNameAsString as part of the path, if the table has a namespace, the path contains character ":...
http://issues.apache.org/jira/browse/HBASE-13151    Author: Jingcheng Du, 2015-03-05, 05:32
[HBASE-13152] NPE in ExpiredMobFileCleanerChore - HBase - [issue]
...NullPointerException in ExpiredMobFileCleanerChore. In the ExpiredMobFileCleanerChore, we invoked ExpiredMobFileCleaner to clean the expired mob files. But we didn't pass the conf in which l...
http://issues.apache.org/jira/browse/HBASE-13152    Author: Jingcheng Du, 2015-03-04, 15:21
[HBASE-13012] Add a shell to trigger the mob file compactor by commands - HBase - [issue]
...Currently the MobFileCompactor is run by HMaster periodically, we need to add a shell to trigger the compactor by commands....
http://issues.apache.org/jira/browse/HBASE-13012    Author: Jingcheng Du, 2015-03-04, 06:06
[HBASE-11339] HBase MOB - HBase - [issue]
... It's quite useful to save the medium binary data like images, documents into Apache HBase. Unfortunately directly saving the binary MOB(medium object) to HBase leads to a worse perform...
http://issues.apache.org/jira/browse/HBASE-11339    Author: Jingcheng Du, 2015-02-26, 19:05
[HBASE-13013] Add read lock to ExpiredMobFileCleanerChore - HBase - [issue]
...Now we have two chores for mob, one is the cleaner of expired mob files, the other is for the mob file compactor. They might handle the same file set concurrently, and might impact each othe...
http://issues.apache.org/jira/browse/HBASE-13013    Author: Jingcheng Du, 2015-02-18, 03:59
[HBASE-12412] update the ref guide(currently Example 10.2) to show "update an existing CF" with the new API modifyFamily in master - HBase - [issue]
...In the new implementation of HTableDescriptor, updating an existing CF doesn't use the addFamily any more(An IllegalArgumentException is thrown in such a case.), the new API modifyFamily is ...
http://issues.apache.org/jira/browse/HBASE-12412    Author: Jingcheng Du, 2015-02-17, 08:04
[HBASE-12820] Use table lock instead of MobZookeeper - HBase - [issue]
...We had a lock to synchronize the major compaction, and sweep tool. Now we will have MR-less mob compaction in the HBase, and need the lock as well. And the table lock is a better choice. In ...
http://issues.apache.org/jira/browse/HBASE-12820    Author: Jingcheng Du, 2015-01-24, 06:09
[HBASE-12698] Add mob cell count to the metadata of each mob file - HBase - [issue]
... Currently we don't know the cell count according to the existing file information in the mob file. This value is very useful in the mob compaction, we should have it in the metadata of...
http://issues.apache.org/jira/browse/HBASE-12698    Author: Jingcheng Du, 2014-12-25, 22:02
[HBASE-12487] Explicitly flush the file name in sweep job - HBase - [issue]
...Currently in the implementation of sweeper, we need to remove the mob files that are not referenced by hbase any more. List the names of all the existing files and write them to a seq file. ...
http://issues.apache.org/jira/browse/HBASE-12487    Author: Jingcheng Du, 2014-11-21, 03:25
[HBASE-12486] Move the mob table name tag to the 2nd one - HBase - [issue]
...Currently the tag for the mob table name is in the last position in tags.In order to accelerate the reading in both mob and cloned mob data, it's better to move this tag to the 2nd position ...
http://issues.apache.org/jira/browse/HBASE-12486    Author: Jingcheng Du, 2014-11-21, 03:24
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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