AssertionError from tracopt/versioncontrol/git/PyGIT.py:554, in get_rev_cache

[yillkid@…]

How to Reproduce

While doing a GET operation on /browser, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'path': '/'}

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/31.0.1650.63 Chrome/31.0.1650.63 Safari/537.36

System Information

Trac	1.0.1
Genshi	0.6 (without speedups)
GIT	1.8.1.2
mod_wsgi	3.4 (WSGIProcessGroup WSGIApplicationGroup %{GLOBAL})
psycopg2	2.4.5
Python	2.7.4 (default, Sep 26 2013, 03:23:21) [GCC 4.7.3]
setuptools	2.0.1
jQuery	1.7.2

Enabled Plugins

graphviz	0.7.7dev-r13275
TracAccountManager	0.4.3
TracCodeReview	2.2dev

Python Traceback

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/trac/web/main.py", line 497, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/lib/python2.7/dist-packages/trac/web/main.py", line 214, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/local/lib/python2.7/dist-packages/trac/versioncontrol/web_ui/browser.py", line 392, in process_request
    context, all_repositories, order, desc)
  File "/usr/local/lib/python2.7/dist-packages/trac/versioncontrol/web_ui/browser.py", line 507, in _render_repository_index
    youngest = repos.get_changeset(repos.youngest_rev)
  File "/usr/local/lib/python2.7/dist-packages/trac/versioncontrol/api.py", line 875, in <lambda>
    youngest_rev = property(lambda self: self.get_youngest_rev())
  File "/usr/local/lib/python2.7/dist-packages/tracopt/versioncontrol/git/git_fs.py", line 393, in get_youngest_rev
    return self.git.youngest_rev()
  File "/usr/local/lib/python2.7/dist-packages/tracopt/versioncontrol/git/PyGIT.py", line 591, in youngest_rev
    return self.rev_cache.youngest_rev
  File "/usr/local/lib/python2.7/dist-packages/tracopt/versioncontrol/git/PyGIT.py", line 554, in get_rev_cache
    or not any(self.__rev_cache)
AssertionError

[Jun Omae]

I'll investigate.

[anonymous]

Thanks for help, the issue occurs after I installed this plug-in ​PeerReviewPlugin. The plugin need to upgrade database using trac-admin and make my browse code function broken. Now I want to remove the plugin temporarily, but I find there are no any uninstall method even I remove the tables and egg file on /usr/local/lib/python2.7/dist-packages/, the problem still happen … any idea? many thanks.

[Jun Omae]

Replying to anonymous:

Now I want to remove the plugin temporarily, but I find there are no any uninstall method even I remove the tables and egg file on /usr/local/lib/python2.7/dist-packages/, the problem still happen … any idea? many thanks.

Have you restarted Apache web server after removing the tables and the egg file?

[anonymous]

Yes I am, but still problem.

[anonymous]

I have a question. I used the method of uninstall ​PeerReviewPlugin as below:

• $ sudo rm -rf /usr/local/lib/python2.7/dist-packages/PeerReviewPlugin.egg
• Remove all tables relate this plugins

But the issue still exist, any idea ? many thanks.

[Jun Omae]

Sorry for delay.

I have a question. I used the method of uninstall ​PeerReviewPlugin as below:

• $ sudo rm -rf /usr/local/lib/python2.7/dist-packages/PeerReviewPlugin.egg
• Remove all tables relate this plugins

Basically right. If .egg-cache directory has been created, you should remove the directory. See TracPlugins. But I don't think the plugin leads something wrong.

But the issue still exist, any idea ? many thanks.

I guess your repository is broken, have permission problem, etc….

Please check the repository like this.

$ sudo -u www-data git --git-dir=/path/to/git-repo fsck

Also could you please try 1.0-stable with TracLogging which DEBUG level is enabled?

[anonymous]

Yes it's a permission problem, thank you very much. :-)

[Jun Omae]

Thanks for feedback, closing.