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[HBASE-18792] hbase-2 needs to defend against hbck operations - HBase - [issue]
...hbck needs updating to run against hbase2. Meantime, if an hbck from hbase1 is run against hbck2, it may do damage. hbase2 should defend itself against hbck1 ops....    Author: stack , 2018-10-18, 04:11
[HBASE-20716] Unsafe access cleanup - HBase - [issue]
...We have two means of getting at unsafe; UnsafeAccess and then internal to the Bytes class. They are effectively doing the same thing. We should have one avenue to Unsafe only.Many of our pat...    Author: stack , 2018-10-18, 04:05
[HBASE-21073] "Maintenance mode" master - HBase - [issue]
...Make it so we can bring up a Master in "maintenance mode". This is parse of master wal procs but not taking on regionservers. It would be in a state where "repair" Procedures could run; e.g....    Author: stack , 2018-10-18, 02:22
[HBASE-21269] Forward-port to branch-2 " HBASE-21213 [hbck2] bypass leaves behind     state in RegionStates when assign/unassign" - HBase - [issue]
...A bunch of this patch does not apply to branch-2 and master now we don't have AP or UP anymore. Need to figure if we need override in branch-2 and master. Let me upload the forward-port done...    Author: stack , 2018-10-18, 01:17
[HBASE-21307] [amv2] Deadlock when we move a Region from a not-online RegionServer - HBase - [issue]
...Perhaps this doesn't happen in branch-2, but its problem in branch-2.1.Highlevel, we go to move a region, its unassign subprocedure fails its dispatch because the server is not online so it ...    Author: stack , 2018-10-18, 01:11
[HBASE-21298] Improved scheduling ("Muzzled HBase") - HBase - [issue]
...Interesting paper on Thread scheduling with hbase for illustration. After study using interesting Thread analysis tooling, authors were able to improve HBase throughputs ("Muzzled-HBase").ht...    Author: stack , 2018-10-18, 00:51
[HBASE-21327] Fix minor logging issue where we don't report servername if no associated SCP - HBase - [issue]
...When reporting on whether an associated SCP, this is what we log:2018-10-16 14:05:57,607 ERROR org.apache.hadoop.hbase.master.RegionServerTracker: false has no matching ServerCrashProcedure2...    Author: stack , 2018-10-18, 00:46
[HBASE-21333] [amv2] large cluster startup is slow - HBase - [issue]
...Testing startup of cluster with 500+ nodes and .5M regions takes a few hours.This is a 2.1.x cluster with batching disabled.Looking at what the Master is doing, its mostly just parsing regio...    Author: stack , 2018-10-17, 21:47
[HBASE-21324] [balancer] Gives up too soon when lots of regions - HBase - [issue]
...When there a few regions, the balancer seems to do a poorish job. My cluster is all out of whack and while the balancer runs, it doesn't do anything. So, I need to configure the balancer to ...    Author: stack , 2018-10-17, 18:47
[VOTE] First release candidate for HBase 1.2.8 is available - HBase - [mail # dev]
...+1Checked signatures and hashes.Built bin from src tarball.Loaded data. Verified it landed.Reviewed logs. Looks good.Undid the bin tarball. Looks good.SOn Fri, Oct 12, 2018 at 3:19 PM Sean B...
   Author: Stack , 2018-10-17, 18:24