[jira] [Reopened] (HBASE-8530) Refine error message from ExportSnapshot when there is leftover snapshot in target cluster

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

     [ https://issues.apache.org/jira/browse/HBASE-8530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu reopened HBASE-8530:
---------------------------


Patch for 0.94 coming soon.
                
> Refine error message from ExportSnapshot when there is leftover snapshot in target cluster
> ------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8530
>                 URL: https://issues.apache.org/jira/browse/HBASE-8530
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>            Priority: Minor
>             Fix For: 0.98.0, 0.95.1
>
>         Attachments: 8530-v1.txt
>
>
> ExportSnapshot performs the following validation check before starting export:
> {code}
>     // Check if the snapshot already in-progress
>     if (outputFs.exists(snapshotTmpDir)) {
>       System.err.println("A snapshot with the same name '" + snapshotName + "' is in-progress");
>       return 1;
>     }
> {code}
> The intention was to prevent concurrent snapshot export when snapshot with the same name may be outstanding.
> Here is sample output:
> {code}
> hbase@ip-10-165-36-226 root$ hbase org.apache.hadoop.hbase.snapshot.ExportSnapshot -snapshot snapone -copy-to hdfs://10.12.113.22:8020/apps/hbase/data -mappers 1
> A snapshot with the same name 'snapone' is in-progress
> {code}
> We should note the actual path in the error message so that user can check whether the snapshot with same name is still pending.

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