[jira] [Commented] (HBASE-15227) HBase Backup Phase 3: Fault tolerance (client/server) support

["Ted Yu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-15227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15390076#comment-15390076 ] 

Ted Yu commented on HBASE-15227:
--------------------------------

Can the recovery be done server side ?
{code}
221	    try{
222	      admin.disableTable(sysTable);
223	      admin.snapshot(snapshot, sysTable);
224	      admin.enableTable(sysTable);
225	      backupId = admin.backupTables(userRequest);
226	      return backupId;
227	    } catch (IOException e){
{code}
In the catch block, we don't know which step in the try block fails.
You can use a flag to record last successful step.

But I think recovery on server side makes more sense.

> HBase Backup Phase 3: Fault tolerance (client/server) support
> -------------------------------------------------------------
>
>                 Key: HBASE-15227
>                 URL: https://issues.apache.org/jira/browse/HBASE-15227
>             Project: HBase
>          Issue Type: Task
>    Affects Versions: 2.0.0
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>              Labels: backup
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15277-v1.patch
>
>
> System must be tolerant to faults. Backup operations MUST be atomic (no partial completion state in system table)



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