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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5232) Put a stern README file in log and seg0 directories to warn users of corrpution they will cause if they touch files there
Date Thu, 15 Nov 2012 22:33:12 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498404#comment-13498404
] 

Mamta A. Satoor commented on DERBY-5232:
----------------------------------------

Hi Kim, thanks for taking the time to provide the feedback. I have changed the wording of
the readme files in messages.xml as per your suggestion. I would like us to stay consistent
with the error messages and use the term NON-RECOVERABLE in the readme files. Also, to avoid
the confusion and for the text to look consistent, I have changed "Do not touch files in this
directory!" to all upper case. I will go ahead and commit these changes shortly. 
                
> Put a stern README file in log and seg0 directories to warn users of corrpution they
will cause if they touch files there
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5232
>                 URL: https://issues.apache.org/jira/browse/DERBY-5232
>             Project: Derby
>          Issue Type: Improvement
>          Components: Store
>    Affects Versions: 10.8.1.2
>            Reporter: Kathey Marsden
>            Assignee: Mamta A. Satoor
>             Fix For: 10.10.0.0
>
>         Attachments: DERBY-5232-kim.diff, DERBY5232_patch1_diff.txt, DERBY5232_patch1_stat.txt,
DERBY5232_patch2_diff.txt, DERBY5232_patch2_stat.txt, DERBY5232_patch3_diff.txt, DERBY5232_patch3_stat.txt,
DERBY5232_patch4_diff.txt, DERBY5232_patch4_stat.txt, DERBY5232_patch5_diff.txt, DERBY5232_patch5_stat.txt,
DERBY5232_patch6_diff.txt, DERBY5232_patch6_stat.txt, DERBY5232_patch7_diff.txt, DERBY5232_patch7_stat.txt,
DERBY5232_test_patch1_diff.txt, DERBY5232_test_patch1_stat.txt, DERBY5232_test_patch2_diff.txt,
DERBY5232_test_patch2_stat.txt
>
>
> Users often on bad advice or desperation  touch or delete files in the log or seg0 directories
(mostly log).
> I think it would be good for new databases and on upgrade that a file be created in these
directories with a name like:
> TOUCHING_FILES_HERE_WILL_CORRUPT_DB_README.txt
> or some such to warn of the perils of doing this and the corrupting effects and how it
can eliminate any possibility of salvage. It should also encourage users to make a zip backup
of the database directory with no jvm currently accessing it before trying to do anything
with the database if it appears to be already corrupt.  Also point to backup/restore documentation
and encourage restore of a good backup into an empty directory if the database is corrupt.
> I'm not sure if it would help but it couldn't hurt.

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