Redmine

This repository has 100000+ files,when firstly browsing it,the browser wait long time and show err:
'''
Internal error
An error occurred on the page you were trying to access.
If you continue to experience problems please contact your redMine administrator for assistance.
Back
'''

And the redmine log err:
'''
Processing RepositoriesController#show (for 10.125.25.55 at 2010-11-29 13:49:16) [GET]
Parameters: {"action"=>"show", "id"=>"android1", "controller"=>"repositories"}

ActiveRecord::StatementInvalid (Mysql::Error: Lock wait timeout exceeded; try restarting transaction: INSERT INTO `changesets` (`committed_on`, `comments`, `commit_date`, `scmid`, `user_id`, `revision`, `repository_id`, `committer`) VALUES('2010-11-25 14:27:10', 'init', '2010-11-25 14:27:10', '6c8534b1713a29cfcc2fdaa7faee604a81fdbbce', 16, '6c8534b1713a29cfcc2fdaa7faee604a81fdbbce', 9, 'zhang <zhang@mymail.com>')):
lib/redmine/scm/adapters/abstract_adapter.rb:298:in `save'
lib/redmine/scm/adapters/abstract_adapter.rb:289:in `save'
app/models/repository/git.rb:65:in `fetch_changesets'
app/models/repository/git.rb:65:in `each'
app/models/repository/git.rb:65:in `fetch_changesets'
app/controllers/repositories_controller.rb:77:in `show'

Rendering D:/webserver/Redmine/public/500.html (500 Internal Server Error)
'''