Redmine

Hi,
we use redmine a long time.

Now we update from version 1.4 to 2.1.4 and we have the problem that the thin service sporadic hang (every 15min to 1hour). We have only the change to restart the service.

No error - logging from thin.
We see only 502 Error in Apache log.

…
10.35.x.x - - [12/Dec/2012:09:18:10 +0100] "GET /redmine/issues/1964 HTTP/1.1" 502 417
10.35.x.x - - [12/Dec/2012:09:18:55 +0100] "GET /redmine/ HTTP/1.1" 502 395
…

Access to 127.0.0.1:4000/Redmine is not possible

We have standard installation from Redmine without plugins.
We only add additional_environment.rb (with config.relative_url_root = '/redmine') .

We start thin with:
thin start -p 4000 -e production --prefix /Redmine
Our System is Windows 7 Prof. 32bit.

gem list, rake about, apach log , thin log see attachment.

Please help us.
What can we do ?

Regards,
Daniel