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Re: svnsync checksum error

From: opensrcguru <opensrcguru_at_gmail.com>
Date: Wed, 10 Nov 2010 13:39:08 -0600

On Wed, Nov 10, 2010 at 10:49 AM, Daniel Shahaf <d.s_at_daniel.shahaf.name> wrote:
> OSG wrote on Tue, Nov 09, 2010 at 20:58:53 -0600:
>> On 11/09/2010 06:41 PM, Daniel Shahaf wrote:
>> > Edward Ned Harvey wrote on Sat, Nov 06, 2010 at 20:29:18 -0400:
>> >>> From: opensrcguru [mailto:opensrcguru_at_gmail.com]
>> >>>
>> >>> Today, the sync process started failing on 1 repo (all others were
>> >>> unaffected) on both r/o copies at the exact same time/same revision
>> >>> with errors similar to the following...
>> >>>
>> >>> Transmitting file data .svnsync: Base checksum mismatch on
>> >>> '/path/to/file/foo/bar':
>> >>>    expected:  2f2e025c4c4855e7466799a877b3e23d
>> >>>      actual:  272214b9518d352e16e7eeceeb22f573
>> >>
>> >
>> > Can you compare the contents of /path/to/file/foo/bar between the master
>> > and mirror, as of the last revision successfully synced to the mirror?
>> Yes, I had done that and yes, the last sync'd revs were in tact and accurate.
> So they are textually identical?

> Can you compare their checksums to the two checksums in the error message?
I hadn't yet, but I can. What is being used to perform the sum (md5/sha1/???)?

>> > If you create a fresh mirror and svnsync it, from r0 to that revision,
>> > does the file /path/to/file/foo/bar in the fresh mirror differ from the
>> > one in the master?
>> No, a resync from r0 to current does not result in any differences.
> Meaning, a fresh resync is successful and doesn't cause any error messages?
> Or meaning, it results in the same error messages as before?

Correct. A new/fresh resync from r0 (including the previously troubled
revision) to latest completes successfully with no errors. That
process was the last in my troubleshooting process and is how I worked
around the problem.


In my case, I do not believe it to be hardware related because I had
two r/o copies that exhibited the same behavior at the same rev at the
same time. That is, unless there was a hardware issue on the source
copy. Although possible, pretty unlikely.
Received on 2010-11-10 20:39:44 CET

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