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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7360) Snapshot 0.94 Backport
Date Tue, 05 Mar 2013 15:45:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13593495#comment-13593495
] 

Ted Yu commented on HBASE-7360:
-------------------------------

What about maintenance cost for the two formats ?
I think Jesse, Matteo and I agree that:

having an upgrade script is lame (and annoying!).
                
> Snapshot 0.94 Backport 
> -----------------------
>
>                 Key: HBASE-7360
>                 URL: https://issues.apache.org/jira/browse/HBASE-7360
>             Project: HBase
>          Issue Type: New Feature
>          Components: snapshots
>    Affects Versions: 0.94.3
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>             Fix For: 0.94.6
>
>         Attachments: 7360-v1.patch, HBASE-7299-0.94.patch, HBASE-7360-jiras.txt, HBASE-7360-v0.patch
>
>
> Backport snapshot code to 0.94
> The main changes needed to backport the snapshot are related to the protobuf vs writable
rpc.
> Offline Snapshot
>  * HBASE-6610 HFileLink: Hardlink alternative for snapshot restore
>  * HBASE-6765 Take a Snapshot interface
> ** This patch is significantly different because of the RPC changes between 0.94/0.96
>  * HBASE-6571 Generic multi-thread/cross-process error handling framework
>  * HBASE-6353 Snapshots shell
>  * HBASE-7107 Snapshot References Utils (FileSystem Visitor)
>  * HBASE-6836 Offline snapshots
>  * HBASE-6865 Snapshot File Cleaners
>  * HBASE-6777 Snapshot Restore Interface
> ** This patch is significantly different because of the RPC changes between 0.94/0.96
>  * HBASE-6230 Clone/Restore Snapshots
>  * HBASE-6802 Export Snapshot
>  * HBASE-7240 Cleanup old snapshots on start
>  * HBASE-7174 Refactor snapshot file cleaner cache to use Snapshot
>  * HBASE-7367 Snapshot coprocessor and ACL security
>  * HBASE-7311 Add snapshot information to hbase master webui
> ** This patch is significantly different because of the RPC changes between 0.94/0.96
>  * HBASE-7418 HFileLink flaky test
>  * HBASE-7420 TestSnapshotExceptionSnare and TestWALReferenceTask missing test category
annotation and failing TestCheckTestClasses
>  * HBASE-7206 ForeignException framework v2 (simplifies and replaces HBASE-6571)
>  * HBASE-7430 TestSnapshotDescriptionUtils break compaction/scanner tests (EnvironmentEdge
issue)
>  * HBASE-7436 Improve stack trace info dumped by ForeignExceptionSnare#rethrowException
>  * HBASE-7339 Splitting an HFileLink causes region servers to go down.
>  * HBASE-7439 HFileLink should not use the configuration from the Filesystem
>  * HBASE-7452 Change ForeignExceptionListener#receive(String, FE)  to only be #receive(FE)
>  * HBASE-7208 Transition Offline Snapshots to ForeignExceptions and Refactor for merge
>  * HBASE-7207 Consolidate snapshot related classes into fewer packages
>  * HBASE-7400 ExportSnapshot mapper closes the FileSystem
>  * HBASE-7352 clone operation from HBaseAdmin can hang forever
>  * HBASE-7294 Check for snapshot file cleaners on start
>  * HBASE-7354 Snapshot Info/Debug Tool
>  * HBASE-7423 HFileArchiver should not use the configuration from the Filesystem
>  * HBASE-7453 HBASE-7423 snapshot followup
>  * HBASE-7212 Globally Barriered Procedure Mechanism
>  * HBASE-6864 Online snapshots scaffolding
>  * HBASE-7321 Simple Flush Snapshot
>  * HBASE-7496 TestZKProcedure fails interrmittently.
>  * HBASE-7484 Fix Restore with schema changes
>  * HBASE-7419 revisit hfilelink file name format
>  * HBASE-7467 CleanerChore checkAndDeleteDirectory not deleting empty directories
>  * HBASE-7214 CleanerChore logs too much, so much so it obscures all else that is going
on
>  * HBASE-7523 Snapshot attempt with the name of a previously taken snapshot fails sometimes.
>  * HBASE-7480 Explicit message for not allowed snapshot on meta tables
>  * HBASE-7537 .regioninfo not created by createHRegion()
>  * HBASE-7535 Fix restore reference files
>  * HBASE-7552 Pass bufferSize param to FileLinkInputStream constructor within FileLink.open
method, and remove unnecessary import packages.
>  * HBASE-7501 Introduce MetaEditor method that both adds and deletes rows in .META. table
>  * HBASE-7365/HBASE-7389 Safer table creation and deletion using .tmp dir
>  * HBASE-7547 Fix findbugs warnings in snapshot classes
>  * HBASE-7548 Fix javadoc warnings in snapshot classes
>  * HBASE-7538 Improve snapshot related error and exception messages
>  * HBASE-7536 Add test that confirms that multiple concurrent snapshot requests are rejected
>  * HBASE-7583 Fixes and cleanups
>  * HBASE-7604 Remove duplicated code from HFileLink
>  * HBASE-7616 NPE in ZKProcedure.nodeCreated
>  * HBASE-7625 Remove duplicated logFSTree() from TestRestoreFlushSnapshotFromClient
>  * HBASE-7627 UnsupportedOperationException in CatalogJanitor thread
>  * HBASE-7622 Add table descriptor verification after snapshot restore
>  * HBASE-7651 RegionServerSnapshotManager fails with CancellationException if previous
snapshot fails in per region task
>  * HBASE-7666 More logging improvements in online snapshots code
>  * HBASE-7689 CloneTableHandler notify completion too early
>  * HBASE-7699 Replace LOG.info() with LOG.debug() in FSUtils.listStatus()
>  * HBASE-7703 Eventually all online snapshots failing due to Timeout at same regionserver.
>  * HBASE-7720 Improve logging messages of failed snapshot attempts.
>  * HBASE-7795 Race in the Restore Archiving
>  * HBASE-7788 Fix flakey TestRestore*SnapshotFromClient#testCloneSnapshot
>  * HBASE-7858 cleanup before merging snapshots branch to trunk
>  * HBASE-7889 Fix javadoc warnings in snapshot classes
>  * HBASE-7911 Remove duplicated code from CreateTableHandler
>  * HBASE-7969 Rename HBaseAdmin#getCompletedSnapshots as HBaseAdmin#listSnapshots
>  * HBASE-7299 TestMultiParallel fails intermittently in trunk builds 

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