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From Vladimir Rodionov <vladrodio...@gmail.com>
Subject Re: [VOTE] Backup/Restore feature for HBase 2.0, vote closing 3/11/2017
Date Wed, 08 Mar 2017 23:52:55 GMT
No problem, we can extend deadline.

On Wed, Mar 8, 2017 at 3:31 PM, Ted Yu <yuzhihong@gmail.com> wrote:

> March 11th is on weekend.
>
> Do you want to give people who haven't looked at the mega patch in depth
> some more time ?
>
> Cheers
>
> On Wed, Mar 8, 2017 at 1:32 PM, Vladimir Rodionov <vladrodionov@gmail.com>
> wrote:
>
> > Hello, HBase folks
> >
> > For your consideration today is Backup/Restore feature for Apache HBAse
> > 2.0.
> > Backup code is available as a mega patch in HBASE-14123 (v61), applies
> > cleanly to the current master, all test PASS, patch has no other issues.
> >
> > The patch has gone through numerous rounds of code reviews and has
> probably
> > the most lengthy discussion thread on Apache JIRA (HBASE-14123) :)
> >
> > The work has been split into 3 phases (HBASE-14030, 14123, 14414) Two
> first
> > are complete, third one is still in progress.
> >
> >
> > *** Summary of work HBASE-14123
> >
> > The new feature introduces new command-line extensions to the hbase
> command
> > and, from the client side, is accessible through command-line only
> > Operations:
> > * Create full backup on a list of tables or backup set
> > * Create incremental backup image for table list or backup set
> > * Restore list of tables from a given backup image
> > * Show current backup progress
> > * Delete backup image and all related images
> > * Show history of backups
> > * Backup set operations: create backup set, add/remove table to/from
> backup
> > set, etc
> >
> > In the current implementation, the feature is already usable, meaning
> that
> > users can backup tables and restore them using provided command-line
> tools.
> > Both: full and incremental backups are supported.
> > This work is based on original work of IBM team (HBASE-7912). The full
> list
> > of JIRAs included in this mega patch can be found in three umbrella
> JIRAs:
> > HBASE-14030 (Phase 1), HBASE-14123 (Phase 2) and HBASE-14414 (Phase 3 -
> all
> > resolved ones made it into the patch)
> >
> > *** What are the remaining work items
> >
> > All remaining items can be found in Phase 3 umbrella JIRA: HBASE-14414.
> > They are split into 3 groups: BLOCKER, CRITICAL, MAJOR
> > Only BLOCKERs and CRITICALs are guaranteed for HBase 2.0 release.
> >
> > ***** BLOCKER
> >
> > * HBASE-14417 Incremental backup and bulk loading ( Patch available)
> > * HBASE-14135 HBase Backup/Restore Phase 3: Merge backup images
> > * HBASE-14141 HBase Backup/Restore Phase 3: Filter WALs on backup to
> > include only edits from backup tables (Patch available)
> > * HBASE-17133 Backup documentation
> > * HBASE-15227 Fault tolerance support
> >
> > ***** CRITICAL
> >
> > * HBASE-16465 Disable split/merges during backup
> >
> > We have umbrella JIRA (HBASE-14414) to track all the remaining work
> > All the BLOCKER and CRITICAL JIRAs currently in open state will be
> > implemented by 2.0 release time. Some MAJOR too, but it depends on
> resource
> > availability
> > The former development branch (HBASE-7912) is obsolete and will be
> > closed/deleted after the merge.
> > We want backup to be a GA feature in 2.0
> > We are going to support full backward compatibility for backup tool in
> 2.0
> > and onwards.
> >
> > **** Configuration
> >
> > Backup is disabled, by default. To enable it, the following configuration
> > properties must be added to hbase-site.xml:
> >
> > hbase.backup.enable=true
> > hbase.master.logcleaner.plugins=YOUR_PLUGINS,org.
> > apache.hadoop.hbase.backup.master.BackupLogCleaner
> > hbase.procedure.master.classes=YOUR_CLASSES,org.
> > apache.hadoop.hbase.backup.master.LogRollMasterProcedureManager
> > hbase.procedure.regionserver.classes=YOUR_CLASSES,org.
> > apache.hadoop.hbase.backup.regionserver.LogRollRegionServerProcedureMa
> > nager
> >
> >
> > I would like to thank IBM team and Jerry He for original work,
> >
> > Enis, Ted, Stack, Matteo, Jerry for time spent on code reviews
> >
> > Special thanks to Ted Yu for his co-development work.
> >
> > References:
> >
> > https://issues.apache.org/jira/browse/HBASE-7912 (original IBM, contains
> > design doc)
> > https://issues.apache.org/jira/browse/HBASE-14030 (Phase 1)
> > https://issues.apache.org/jira/browse/HBASE-14123 (Phase 2)
> > https://issues.apache.org/jira/browse/HBASE-14414 (Phase 3)
> >
> > Please  vote +1/-1 by midnight Pacific Time (00:00
> > -0800 GMT) on March 11th  ‚Äčon whether or not we should merge this into
> the
> > current master.
> >
> > -Vladimir Rodionov
> >
>

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