Re: [OpenAFS] Re: Losing tokens

2010-09-09 Thread Jeff Blaine

Mystery solved.

The user was using GNU screen, starting the process,
detaching from screen, and terminating his original
SSH session to the host (which, with our PAM config,
destroys creds).

I've pointed him at our build of krenew.
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Re: [OpenAFS] Re: Losing tokens

2010-09-09 Thread Derrick Brashear
On Thu, Sep 9, 2010 at 5:09 PM, Jeff Blaine jbla...@kickflop.net wrote:
 Mystery solved.

 The user was using GNU screen, starting the process,
 detaching from screen, and terminating his original
 SSH session to the host (which, with our PAM config,
 destroys creds).

 I've pointed him at our build of krenew.

Someone posted some screen helper macroes a while ago, also.
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Re: [OpenAFS] Re: Losing tokens

2010-09-07 Thread Jeff Blaine

Jeff, is your usage low enough that logging all token
invalidations/destruction (and maybe acquisition) would be okay? Want to
run a debugging patch?


Sure, if it's something I can run just on the client side.
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Re: [OpenAFS] Re: Losing tokens

2010-09-04 Thread Simon Wilkinson

On 3 Sep 2010, at 21:56, Derrick Brashear sha...@dementia.org wrote:


run 'groups' before and after?


I'm away at the moment, so I'll be brief. When I investigated this my  
observations were that the user still had their original PAG group,  
and still had PAG related keyring entries. None of the token  
destruction code paths that log were being used. My plan was to  
instrument the remaining sites that mark a token for destruction (in  
particular the keyring destructor) and try to get it to fail again.


Sadly, we only seem to see this problem on heavily used hosts, and  
even then only after they've been running for a while.


Simon.



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Re: [OpenAFS] Re: Losing tokens

2010-09-04 Thread Jeff Blaine

On 9/4/2010 2:42 AM, Simon Wilkinson wrote:

On 3 Sep 2010, at 21:56, Derrick Brashear sha...@dementia.org wrote:


run 'groups' before and after?


With tokens and after tokens have been lost report this:

air blogint id: cannot find name for group ID 1098911902
1098911902


I'm away at the moment, so I'll be brief. When I investigated this my
observations were that the user still had their original PAG group, and
still had PAG related keyring entries. None of the token destruction
code paths that log were being used. My plan was to instrument the
remaining sites that mark a token for destruction (in particular the
keyring destructor) and try to get it to fail again.

Sadly, we only seem to see this problem on heavily used hosts, and even
then only after they've been running for a while.

Simon.





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Re: [OpenAFS] Re: Losing tokens

2010-09-03 Thread Jeff Blaine

On 9/3/2010 2:02 PM, Andrew Deason wrote:

On Fri, 03 Sep 2010 13:52:06 -0400
Jeff Blainejbla...@kickflop.net  wrote:


  [theu...@ourhost theproject]$ kinit
  Password for theu...@rcf.our.org:
  [theu...@ourhost theproject]$ aklog
  [theu...@ourhost theproject]$ tokens

  Tokens held by the Cache Manager:

  User's (AFS ID 3113) tokens for a...@rcf.our.org [Expires Sep
  10 09:58]
 --End of list--
  [theu...@ourhost theproject]$ ./eval.sh
  [theu...@ourhost theproject]$ ls
  ls: .: Permission denied
  [theu...@ourhost theproject]$ tokens

  Tokens held by the Cache Manager:

 --End of list--
  [theu...@ourhost theproject]$


Anything afs-related in dmesg or syslog, around this time?


Not a peep.
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Re: [OpenAFS] Re: Losing tokens

2010-09-03 Thread Derrick Brashear
run 'groups' before and after?

Derrick


On Sep 3, 2010, at 2:49 PM, Jeff Blaine jbla...@kickflop.net wrote:

 On 9/3/2010 2:02 PM, Andrew Deason wrote:
 On Fri, 03 Sep 2010 13:52:06 -0400
 Jeff Blainejbla...@kickflop.net  wrote:
 
  [theu...@ourhost theproject]$ kinit
  Password for theu...@rcf.our.org:
  [theu...@ourhost theproject]$ aklog
  [theu...@ourhost theproject]$ tokens
 
  Tokens held by the Cache Manager:
 
  User's (AFS ID 3113) tokens for a...@rcf.our.org [Expires Sep
  10 09:58]
 --End of list--
  [theu...@ourhost theproject]$ ./eval.sh
  [theu...@ourhost theproject]$ ls
  ls: .: Permission denied
  [theu...@ourhost theproject]$ tokens
 
  Tokens held by the Cache Manager:
 
 --End of list--
  [theu...@ourhost theproject]$
 
 Anything afs-related in dmesg or syslog, around this time?
 
 Not a peep.
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