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Anoop Sam John
Stephen Yuan Jiang
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[HBASE-15816] Provide client with ability to set priority on Operations
...First round will just be to expose the ability to set priorities for client operations. For more background: http://mail-archives.apache.org/mod_mbox/hbase-dev/201604.mbox/%3CCA+RK=_BG...
, 2016-06-24, 16:49
[HBASE-16086] TableCfWALEntryFilter and ScopeWALEntryFilter should not redundantly iterate over cells.
...TableCfWALEntryFilter and ScopeWALEntryFilter both filter by iterating over cells. Since the filters are chained we do this work twice. Instead iterate over cells once and apply ...
, 2016-06-23, 06:35
[HBASE-15727] Canary Tool for Zookeeper
...It would be nice to have the canary tool also monitor zookeeper. Something simple like doing a getData() call on zookeeper.znode.parentIt would be nice to create clients for every inst...
, 2016-06-08, 12:51
[HBASE-15130] Backport 0.98 Scan different TimeRange for each column family
...branch 98 version backport for HBASE-14355...
, 2016-06-07, 23:19
[HBASE-15321] Ability to open a HRegion from hdfs snapshot.
...Now that hdfs snapshots are here, we started to run our mapreduce jobs over hdfs snapshots. The thing is, hdfs snapshots are read-only point-in-time copies of the file system. Th...
, 2016-03-02, 23:59
[HBASE-11352] When HMaster starts up it deletes the tmp snapshot directory, if you are exporting a snapshot at that time the job will fail
...We are exporting a very large table. The export snapshot job takes 7+ days to complete. During that time we had to bounce HMaster. When HMaster initializes, it initializes ...
, 2016-02-23, 17:38
[HBASE-12889] Add scanner caching and batching options for the CopyTable job.
...We use the copy table job to ship data between clusters. Sometimes we have very wide rows and it is nice to be able to set the batching and caching. I'll attach trivial patches f...
, 2016-02-23, 17:33
[HBASE-13031] Ability to snapshot based on a key range
...Posted on the mailing list and seems like some people are interested. A little background for everyone.We have a very large table, we would like to snapshot and transfer the data to an...
, 2016-02-23, 17:31
[HBASE-12890] Provide a way to throttle the number of regions moved by the balancer
...We have a very large cluster and we frequently add remove quite a few regionservers from our cluster. Whenever we do this the balancer moves thousands of regions at once. Instead...
, 2016-02-23, 17:31
[HBASE-14129] If any regionserver gets shutdown uncleanly during full cluster restart, locality looks to be lost
...We were doing a cluster restart the other day. Some regionservers did not shut down cleanly. Upon restart our locality went from 99% to 5%. Upon looking at the AssignmentMa...
, 2016-02-11, 01:10
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