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From Christian Müller <>
Subject Re: How to recover corrupted HawtDB files
Date Tue, 16 Jul 2013 21:22:36 GMT
I'm not sure whether this is the best forum for this kind of question. May
be posting on the HawtDB mailing list makes more sense...

Only my 0,02 €,

Software Integration Specialist

Apache Camel committer:
V.P. Apache Camel:
Apache Member:

On Tue, Jul 16, 2013 at 10:12 AM, Stefan Burkard <> wrote:

> Hi Camel users
> I have a component with 2 persistent aggregators. One receives all
> messages, one only a part of them. After a lot of test runs without
> problems I had yesterday a serious problem with the aggregator persistence
> (hawtdb).
> I don't know yet what causes the problems, but however, problems can
> occur. My problem is that I cannot recover the data from the hawtdb-files.
> Im my logs, I got first of all about 8 stacktraces like the attached
> "stacktrace1.txt". The number in the error message "The requested page was
> not an extent: 35" is growing from stacktrace to stacktrace from 35 to 1163.
> Then, I got some stacktraces like the attached "stacktrace2.txt".
> Finally I got A LOT of stacktraces like the attached "stacktrace3.txt".
> After shutting down the component gracefully, I tried to restart it, but
> this throws stacktraces like the attached "stacktrace-startup.txt".
> I can only start the component again if I rename the hawtdb-files so they
> are ignored and new hawtdb-files are created.
> This leaves me with the question: how can I recover the corrupted
> hawtdb-files? I didn't found anything about this subject and if this is not
> possible, this would be a real show-stopper.
> Thanks for any help
> Stefan

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