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From "Mike Drob (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18431) Mitigate compatibility concerns between branch-1.3 and branch-1.4
Date Mon, 31 Jul 2017 23:37:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16108163#comment-16108163
] 

Mike Drob commented on HBASE-18431:
-----------------------------------

[~apurtell], I've got a lot on my plate right now, would you mind giving me until the end
of the week to look? If stack's PB changes would make this too hard and you need to land before
that, let me know and I'll look at it after it's in and file follow on issues if I see things.

> Mitigate compatibility concerns between branch-1.3 and branch-1.4
> -----------------------------------------------------------------
>
>                 Key: HBASE-18431
>                 URL: https://issues.apache.org/jira/browse/HBASE-18431
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Blocker
>             Fix For: 1.4.0, 1.5.0
>
>         Attachments: HBASE-18431-branch-1.4.patch, HBASE-18431-branch-1.patch, HBASE-18431-branch-2-WIP.patch
>
>
> There are compatibility concerns with branch-1.4. 
> {noformat}
> Library Name	HBase
> Version #1	1.3.1
> Version #2	1.4.0-SNAPSHOT
> Subject	Binary Compatibility
> Compatibility - 89.9%
> Added Methods - 305
> Removed Methods - 105
> Problems with Data Types
> 	High - 23
> 	Medium - 9
> 	Low - 21
> {noformat}
> {noformat}
> Library Name	HBase
> Version #1	1.3.1
> Version #2	1.4.0-SNAPSHOT
> Subject	Source Compatibility
> Compatibility- 86.5%
> Added Methods - 305
> Removed Methods - 105
> Problems with Data Types
> 	High - 88
> 	Medium - 0
> 	Low - 0
> Other Changes in Data Types	 - 25
> {noformat}
> This report includes HBASE-15816 which hasn't been committed yet. Otherwise it's current.
> I'm not generally concerned with added methods. 
> The following methods have been added to Public/Evolving interface Table. Pointing them
out in case it merits review.
> \\
> * Abstract method Table.getReadRpcTimeout ( ) has been added to this interface.	No effect.
> * Abstract method Table.getWriteRpcTimeout ( ) has been added to this interface.	No effect.
> * Abstract method Table.setReadRpcTimeout ( int ) has been added to this interface.	No
effect.
> * Abstract method Table.setWriteRpcTimeout ( int ) has been added to this interface.
> The Public/Evolving interface Admin has some signature changes equating to removed methods.
I don't think this is allowed in a minor release.
> \\
> * Abstract method Admin.isSnapshotFinished ( HBaseProtos.SnapshotDescription ) has been
removed from Admin.
> *  Abstract method Admin.snapshot ( String, TableName, HBaseProtos.SnapshotDescription.Type
) has been removed from Admin.
> * Abstract method Admin.snapshot ( HBaseProtos.SnapshotDescription ) has been removed
from Admin.
> *  Abstract method Admin.takeSnapshotAsync ( HBaseProtos.SnapshotDescription ) has been
removed from Admin.
> The LimitedPrivate(CONFIG) interface AsyncRpcClient has been removed. This change is
debatable but I think we can allow it.
> \\
> * AsyncRpcClient has been removed
> The Public/Evolving class FastLongHistogram has been removed. I don't believe this change
is allowed in a minor release.
> \\
> * FastLongHistogram has been removed
> Method signatures in LimitedPrivate(COPROC) interfaces MasterObserver and RegionObserver
have changed, equating to removed methods. The first set of changes is due to move of SnapshotDescription
from HBaseProtos to SnapshotProtos:
> \\
> * Abstract method MasterObserver.postCloneSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription, HTableDescriptor ) has been removed from MasterObserver.
> * Abstract method MasterObserver.postDeleteSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription ) has been removed from MasterObserver.
> * Abstract method MasterObserver.postListSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription ) has been removed from MasterObserver.
> * Abstract method MasterObserver.postRestoreSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription, HTableDescriptor ) has been removed from MasterObserver.
> * Abstract method MasterObserver.postSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription, HTableDescriptor ) has been removed from MasterObserver.
> * Abstract method MasterObserver.preCloneSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription, HTableDescriptor ) has been removed from MasterObserver.
> * Abstract method MasterObserver.preDeleteSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription ) has been removed from MasterObserver.
> * Abstract method MasterObserver.preListSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription ) has been removed from MasterObserver.
> * Abstract method MasterObserver.preRestoreSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription, HTableDescriptor ) has been removed from MasterObserver.
> * Abstract method MasterObserver.preSnapshot ( ObserverContext<MasterCoprocessorEnvironment>,
HBaseProtos.SnapshotDescription, HTableDescriptor ) has been removed from MasterObserver.
> Here, maybe DeleteTracker moved packages?
> \\
> * Abstract method RegionObserver.postInstantiateDeleteTracker ( ObserverContext<RegionCoprocessorEnvironment>,
DeleteTracker ) has been removed from RegionObserver.
> The LimitedPrivate(COPROC) interface Store has method signature changes equating to removed
methods. The changes are debatable. I am thinking we can allow them. Anyone implementing their
own Stores?
> \\
> * Abstract method Store.bulkLoadHFile ( String, long ) has been removed from Store.
> * Abstract method Store.getScanners ( List<StoreFile>, boolean, boolean, boolean,
boolean, ScanQueryMatcher, byte[ ], byte[ ], long, boolean ) has been removed from Store.
> * Abstract method Store.getScanners ( boolean, boolean, boolean, boolean, ScanQueryMatcher,
byte[ ], byte[ ], long ) has been removed from Store.
> * Abstract method Store.upsert ( Iterable<Cell>, long ) has been removed from Store.



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