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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15411) Rewrite backup with Procedure V2
Date Fri, 11 Mar 2016 18:47:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191364#comment-15191364

Ted Yu commented on HBASE-15411:

In test run of TestFullBackup#testFullBackupSingle, even though snapshot succeeded:
2016-03-10 20:33:13,000 DEBUG [B.defaultRpcServer.handler=1,queue=0,port=56481] snapshot.SnapshotManager(359):
Snapshot '{ ss=snapshot_1457670792650_default_test-1457670784996   table=test-1457670784996
type=FLUSH }' has completed, notifying client.
there was no occurrence of the following log at the beginning of state 3 (test finished soon
after taking snapshot):
        case SNAPSHOT_COPY:
          // do snapshot copy
          LOG.debug("snapshot copy");
Tried moving snapshot action into FullTableBackupProcedure - result was the same.

> Rewrite backup with Procedure V2
> --------------------------------
>                 Key: HBASE-15411
>                 URL: https://issues.apache.org/jira/browse/HBASE-15411
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 15411-v1.txt, 15411-v3.txt, 15411-v5.txt, 15411-v6.txt, FullTableBackupProcedure.java
> Currently full / incremental backup is driven by BackupHandler (see call() method for
> This issue is to rewrite the flow using Procedure V2.
> States (enum) for full / incremental backup would be introduced in Backup.proto which
correspond to the steps performed in BackupHandler#call().
> executeFromState() would pace the backup based on the current state.
> serializeStateData() / deserializeStateData() would be used to persist state into procedure

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