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[HBASE-17739] BucketCache is inefficient/wasteful/dumb in its bucket allocations
...By default we allocate 14 buckets with sizes from 5K to 513K. If lots of heap given over to bucketcache and say no allocattions made for a particular bucket size, this means we have a bunch ...
, 2017-03-23, 01:54
[HBASE-17814] Move hbasecon site to hbase.apache.org
...Moving our hbasecon pages from a site that Cloudera sponsored.We want to be able to point hbasecon our new hosts for this year (and keep around links to the old content which while it is all...
, 2017-03-21, 23:51
[HBASE-16983] TestMultiTableSnapshotInputFormat failing with Unable to create region directory: /tmp/...
...Test is using /tmp. We failed creating dir in /tmp in a few tests from this suite just now:https://builds.apache.org/job/PreCommit-HBASE-Build/4253/testReport/org.apache.hadoop.hbase.mapred/...
, 2017-03-21, 20:07
[HBASE-16023] Fastpath for the FIFO rpcscheduler
...This is an idea copied from kudu where we skip queuing a request if there is a handler ready to go; we just do a direct handoff from reader to handler.Makes for close to a %20 improvement in...
, 2017-03-20, 09:15
[HBASE-17802] Add note that minor versions can add methods to Interfaces
...Clarify that adding methods to Interfaces in minor releases is allowed and that we'll always try to do it in a backward compatible way.Here is discussion from the list:http://search-hadoop.c...
, 2017-03-20, 03:00
[HBASE-17229] Backport of purge ThreadLocals
...Backport HBASE-17072 and HBASE-16146. The former needs to be backported to 1.3 (Mikhail Antonov) and 1.2 (Sean Busbey). The latter is already in 1.3. Needs to be backported to 1.2....
, 2017-03-17, 08:38
[HBASE-16290] Dump summary of callQueue content; can help debugging
...Being able to get a clue what is in a backedup callQueue could give insight on what is going on on a jacked server. Just needs to summarize count, sizes, call types. Useful debugging. In a s...
, 2017-03-15, 12:59
[HBASE-15314] Allow more than one backing file in bucketcache
...Allow bucketcache use more than just one backing file: e.g. chassis has more than one SSD in it....
, 2017-03-15, 10:26
[HBASE-17788] Procedure V2 performance improvements
...This is a list of items to work on to improve framework perf taken from https://docs.google.com/document/d/1kEWzyA0iCyRjdogjju9JNMDT9ODHaKcyoAJTMXkDpxc/edit# Make sub-issues to work on each ...
, 2017-03-14, 21:39
[HBASE-17787] Drop rollback for all procedures; not useful afterall
...Quote from Matteo Bertozzi from https://docs.google.com/document/d/1kEWzyA0iCyRjdogjju9JNMDT9ODHaKcyoAJTMXkDpxc/edit#"Looking back rollback support is not really useful in our operations. We...
, 2017-03-14, 20:16
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