Corrupt Repository

["Thamm, Russell" <ru...@dsto.defence.gov.au>]

Hi,

This morning, I tried to check-out a fresh copy of my repository and I got the error:

REPORT request failed on '/svn/ssc/!svn/vcc/default blah blah blah

In the apache error log, I found the following error:

Checksum mismatch on rep 'kn':\n blah blah blah

Can I repair my repository?

I have an up-to-date working directory. I could use this to recreate my repository
but I would then lose my history.

The really annoying thing is that the corrupt file hasn't be modified since day 1, it is still
version 1.

thanks
Russell Thamm

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Re: Corrupt Repository

[Max Bowsher <ma...@ukf.net>]

kfogel@collab.net wrote:
> "Thamm, Russell" <ru...@dsto.defence.gov.au> writes:
>> This morning, I tried to check-out a fresh copy of my repository and
>> I got the error:
>>
>> REPORT request failed on '/svn/ssc/!svn/vcc/default blah blah blah
>>
>> In the apache error log, I found the following error:
>>
>> Checksum mismatch on rep 'kn':\n blah blah blah
>>
>> Can I repair my repository?
>>
>> I have an up-to-date working directory. I could use this to recreate
>> my repository but I would then lose my history.
>>
>> The really annoying thing is that the corrupt file hasn't be
>> modified since day 1, it is still version 1.
>
> We'd love a lot more detail about your setup: version of Subversion,
> type of repository, the exact file, etc.  Has your disk filled up
> recently or anything?  Is the repository large, can you save it before
> you do anything further?

Reiterating that the above would be very interesting.

Regarding repair:

FIRST, MAKE A BACKUP OF THE REPOSITORY

I'm going to assume you have the Berkeley DB db_dump and db_load programs 
available.

cd repository/db
db_dump -p representations > reps.txt
your-favourite-editor reps.txt

Find the line which is exactly the string " kn".
On the line below, look for the substring that is like:

(md5 16 some-mess-here))

Change the some-mess-here to 16 repetitions of the 3-character string "\00".

Save and exit.

db_load representations < reps.txt

Now, try "svnadmin dump" on the repository.

If there are further errors, the best course of action would probably be for 
you to give me a tarball of the repository for repair.

Max.


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Re: Corrupt Repository

[kf...@collab.net]

"Thamm, Russell" <ru...@dsto.defence.gov.au> writes:
> This morning, I tried to check-out a fresh copy of my repository and
> I got the error:
> 
> REPORT request failed on '/svn/ssc/!svn/vcc/default blah blah blah
> 
> In the apache error log, I found the following error:
> 
> Checksum mismatch on rep 'kn':\n blah blah blah
> 
> Can I repair my repository?
> 
> I have an up-to-date working directory. I could use this to recreate
> my repository but I would then lose my history.
> 
> The really annoying thing is that the corrupt file hasn't be
> modified since day 1, it is still version 1.

We'd love a lot more detail about your setup: version of Subversion,
type of repository, the exact file, etc.  Has your disk filled up
recently or anything?  Is the repository large, can you save it before
you do anything further?

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