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[HBASE-21217] Revisit the executeProcedure method for open/close region - HBase - [issue]
...Currently we just call openRegion and closeRegion directly, which is a bit buggy. For example, in order to not fail all the open region requests while there is only one failure, we will catc...
http://issues.apache.org/jira/browse/HBASE-21217    Author: Duo Zhang , 2018-09-25, 13:17
[HBASE-21226] Revisit the close region related code at RS side - HBase - [issue]
...We use the closeRegion method to close a region and it will schedule a CloseRegionHandler(before HBASE-21217). The problem here is that, the CloseRegionHandler and closeRegion method are mai...
http://issues.apache.org/jira/browse/HBASE-21226    Author: Duo Zhang , 2018-09-25, 13:17
[HBASE-21227] Implement exponential retrying backoff for Assign/UnassignRegionHandler introduced in HBASE-21217 - HBase - [issue]
http://issues.apache.org/jira/browse/HBASE-21227    Author: Duo Zhang , 2018-09-25, 13:17
[HBASE-21199] Race in region opening and load balancing can cause region stuck in RIT - HBase - [issue]
...After HBASE-20881, when region server calls reportRegionTransition with OPEN state, we will update the hbase:meta directly and finish the TRSP. So it is possible that we schedule a new TRSP ...
http://issues.apache.org/jira/browse/HBASE-21199    Author: Duo Zhang , 2018-09-22, 12:53
[HBASE-16225] Refactor ScanQueryMatcher - HBase - [issue]
...As said in HBASE-16223, the code of ScanQueryMatcher is too complicated. I suggest that we can abstract an interface and implement several sub classes which separate different logic into dif...
http://issues.apache.org/jira/browse/HBASE-16225    Author: Duo Zhang , 2018-09-20, 18:38
[HBASE-21188] Print heap and gc informations in our junit ResourceChecker - HBase - [issue]
http://issues.apache.org/jira/browse/HBASE-21188    Author: Duo Zhang , 2018-09-17, 04:52
[HBASE-21172] Reimplement the retry backoff logic for ReopenTableRegionsProcedure - HBase - [issue]
...Now we just do a blocking sleep in the execute method, and there is no exponential backoff....
http://issues.apache.org/jira/browse/HBASE-21172    Author: Duo Zhang , 2018-09-16, 13:02
[HBASE-19064] Synchronous replication for HBase - HBase - [issue]
...The guys from Alibaba made a presentation on HBaseCon Asia about the synchronous replication for HBase. We(Xiaomi) think this is a very useful feature for HBase so we want to bring it into t...
http://issues.apache.org/jira/browse/HBASE-19064    Author: Duo Zhang , 2018-09-14, 02:29
[HBASE-21187] The HBase UTs are extremely slow on some jenkins node - HBase - [issue]
...Looking at the flaky dashboard for master branch, the top several UTs are likely to fail at the same time. One of the common things for the failed flaky tests job is that, the execution time...
http://issues.apache.org/jira/browse/HBASE-21187    Author: Duo Zhang , 2018-09-13, 13:34
[HBASE-21140] Backport 'HBASE-21136 NPE in MetricsTableSourceImpl.updateFlushTime' to branch-1 . (and backport HBASE-15728  for branch-1) - HBase - [issue]
...There is no computeIfAbsent method on branch-1 as we still need to support JDK7, so the fix will be different with branch-2+....
http://issues.apache.org/jira/browse/HBASE-21140    Author: Duo Zhang , 2018-09-11, 20:04