+1 from me as well. On Wed, Mar 8, 2017 at 3:48 PM, Enis Söztutar <e...@apache.org> wrote:
> Thanks Vladimir for the write up and the work. Glad to see progress. > > Here is my +1. I'm pretty sure we can get the blockers in before the 2.0 > timeframe with the momentum, so it is a good idea to merge now so that > development can continue in master, and there is more exposure for testing, > etc. > > Enis > > On Wed, Mar 8, 2017 at 1:32 PM, Vladimir Rodionov <vladrodio...@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 on whether or not we should merge this into > the > > current master. > > > > -Vladimir Rodionov > > >
