This merge vote passes with 4 binding +1's and 3 non-binding +1's.
Thanks everyone. I'll go ahead with the merge into master and see how
easily it comes back to branch-2.
On 2021/12/16 21:30:09 Josh Elser wrote:
Hi!
I'm extremely pleased to send this official vote to merge the feature
branch for HBASE-26067[1] into master and backport into branch-2 (2.x,
not 2.5.x). This feature branch introduces the pluggable
StoreFileTracker interface.
The StoreFileTracker allows the StoreFileEngine to be decoupled from
where the HFiles can be found. The DEFAULT implementation of this
StoreFileTracker (e.g. files in a family's directory) is still the
default implementation. This merge would introduce a FILE implementation
which uses a flat-file in each column family to track the files which
make up this Store. This feature is notable for HBase as it invalidate
the need for HBOSS (a distributed locking layer in hbase-filesystem)
when Amazon S3 is used for HBase data.
We had a DISCUSS thread [2] in which the overall sentiment was positive
to merge.
Covering some high-level details/FAQ on this work:
* Wellington and Szabolcs have successfully run ITBLL with Chaos Monkies
using this feature.
* YCSB (load) indicates a slight performance improvement when using S3
as the storage system for HBase as compared to using HBOSS [3]
* A new section was added to the HBase book which covers the feature and
how to use it.
* There is some follow-on work expected, tracked in HBASE-26584 [4],
which includes things like making user consumption easier and additional
metrics to measure effectiveness of the feature.
As is customary, this vote will be open for at least 3 days (2021/12/19
2130 GMT). We'll follow the standard ASF lazy-consensus rules for code
modification (though I do not expect to need the lazy-consensus caveat).
Please vote:
+1: Merge the changes from HBASE-26067 to master and branch-2
-1: Do not merge these changes because ...
Big thank you to all of the super hard work that Duo, Wellington, and
Szabolcs have put into this feature.
- Josh
[1] https://issues.apache.org/jira/browse/HBASE-26067
[2] https://lists.apache.org/thread/6dblom3tc2oz05d263pvmrywlthqq1c1
[3]
https://issues.apache.org/jira/browse/HBASE-26067?focusedCommentId=17448499&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17448499
[4] https://issues.apache.org/jira/browse/HBASE-26584
