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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8465) Improvement for snapshot restore
Date Tue, 30 Apr 2013 09:06:15 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-8465:
--------------------------

    Description: 
Below is an excerpt from snapshot restore javadoc:
{code}
   * Restore the specified snapshot on the original table. (The table must be disabled)
   * Before restoring the table, a new snapshot with the current table state is created.
   * In case of failure, the table will be rolled back to the its original state.
{code}
We can improve the handling of rollbackSnapshot in two ways:

1. give better name to the rollbackSnapshot (adding {code}'-for-rollback-'{code}). Currently
the name is of the form:
    String rollbackSnapshot = snapshotName + "-" + EnvironmentEdgeManager.currentTimeMillis();

2. drop rollbackSnapshot at the end of restoreSnapshot() if the restore is successful. We
can introduce new config param, named 'hbase.snapshot.restore.drop.rollback', to keep compatibility
with current behavior.

  was:
Below is an excerpt from snapshot restore javadoc:
{code}
   * Restore the specified snapshot on the original table. (The table must be disabled)
   * Before restoring the table, a new snapshot with the current table state is created.
   * In case of failure, the table will be rolled back to the its original state.
{code}
We can improve the handling of rollbackSnapshot in two ways:

1. give better name to the rollbackSnapshot (adding '-for-rollback-'). Currently the name
is of the form:
    String rollbackSnapshot = snapshotName + "-" + EnvironmentEdgeManager.currentTimeMillis();

2. drop rollbackSnapshot at the end of restoreSnapshot() if the restore is successful. We
can introduce new config param, named 'hbase.snapshot.restore.drop.rollback', to keep compatibility
with current behavior.

    
> Improvement for snapshot restore
> --------------------------------
>
>                 Key: HBASE-8465
>                 URL: https://issues.apache.org/jira/browse/HBASE-8465
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>
> Below is an excerpt from snapshot restore javadoc:
> {code}
>    * Restore the specified snapshot on the original table. (The table must be disabled)
>    * Before restoring the table, a new snapshot with the current table state is created.
>    * In case of failure, the table will be rolled back to the its original state.
> {code}
> We can improve the handling of rollbackSnapshot in two ways:
> 1. give better name to the rollbackSnapshot (adding {code}'-for-rollback-'{code}). Currently
the name is of the form:
>     String rollbackSnapshot = snapshotName + "-" + EnvironmentEdgeManager.currentTimeMillis();
> 2. drop rollbackSnapshot at the end of restoreSnapshot() if the restore is successful.
We can introduce new config param, named 'hbase.snapshot.restore.drop.rollback', to keep compatibility
with current behavior.

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