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From "Lou DeGenaro (JIRA)" <...@uima.apache.org>
Subject [jira] [Commented] (UIMA-5122) DUCC Database (db) admin tool for save & restore
Date Mon, 26 Sep 2016 19:51:21 GMT

    [ https://issues.apache.org/jira/browse/UIMA-5122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15523999#comment-15523999
] 

Lou DeGenaro commented on UIMA-5122:
------------------------------------

bash-4.1$ ./db_tool --help
Usage: db_tool [options]

Options:
  -h, --help         show this help message and exit
  --save             create snapshot of database; expects database to be up
  --restore          restore database from snapshot; expects database to be
                     down

  Advanced:
    --debug          display debugging messages
    --name=SNAPSHOT  name of the snapshot

  Auxiliary:
    --start          start the database
    --stop           stop the database


> DUCC Database (db) admin tool for save & restore
> ------------------------------------------------
>
>                 Key: UIMA-5122
>                 URL: https://issues.apache.org/jira/browse/UIMA-5122
>             Project: UIMA
>          Issue Type: Improvement
>          Components: DUCC
>            Reporter: Lou DeGenaro
>            Assignee: Lou DeGenaro
>             Fix For: 2.2.0-Ducc
>
>
> DUCC employs the Cassandra database, which in turn provides the nodetool command to create
snapshots of the database.  There is also a web site https://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_backup_noderestart_t.html
that comprises a labor intensive recipe for database restoration from snapshots.
> Provide a DUCC tool to aid in the creation of database snapshots and restoration therefrom.



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