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How to clear/reset a corrupt session in Rails

+1 vote

We have a rails 2.3 app with a large number of live users, and we have recently done something to corrupt some users sessions in such a way that any attempt to use the session object itself raises an exception. "reset_session" is also raising the same exception, and not clearing the session.

Is there a lower-level way to clear the session from the app that doesn't require the session to be valid? We are using the cookie session_store.

What is really surprsing to me is that even "cookies['our_cookie_label']=nil" raises the exception.

The exception is this: "ActionController::SessionRestoreError (Session contains objects whose class definition isn't available. Remember to require the classes for all objects kept in the session.
(Original exception: #{const_error.message} [#{const_error.class}])"

Unfortunately, since we can't read the session at all, I can't figure out what object is in it that isn't defined.

posted May 22, 2014 by Deepankar Dubey

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1 Answer

+1 vote

Have you tried changing the secret, so all existing cookies are invalidated? Look in the initializers for secret_token.rb (may be somewhere else on 2.3, can't recall exactly).

answer May 22, 2014 by anonymous
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