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From "Kathey Marsden (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 04:10:12 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13497747#comment-13497747
] 

Kathey Marsden commented on DERBY-5232:
---------------------------------------

Hi Mamta,

I have not had a chance to look closely and won't until I get 10.8.3 out. I have some cosmetic
comments but can file a new issue once I get them together. I can just file a new issue if
preferrable.    The most significant is:
I would like to change
README_DONT_TOUCH_FILES.txt to
README_DO_NOT_TOUCH_FILES.txt

The contraction without an appostrophy is bothersome and since I am guessing the file name
is not localized, having separate words will be more clear to non-English readers.

I think it would be good for Kim to review the text.  I will sign up to buddy test this feature
for 10.10. Thank you so much for putting this warning to users in Derby!




                
> 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: 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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