[774] in arla-drinkers
severe cache coherency problem
daemon@ATHENA.MIT.EDU (Mattias Engdegård)
Wed Apr 21 21:56:16 1999
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Date: Thu, 22 Apr 1999 01:05:52 +0200 (MET DST)
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From: "Mattias Engdegård" <f91-men@nada.kth.se>
To: arla-drinkers@stacken.kth.se
Subject: severe cache coherency problem
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I'm creating 2 files, a and b, on host X (Solaris, transarc AFS client).
They are visible and readable from host Y (Linux 2.2.6, arla 0.23, libc5.4.46).
When X removes file a, arlad on Y says:
Thu Apr 22 00:45:31 1999: arlad: callback (130.237.42.231)
Thu Apr 22 00:45:31 1999: arlad: -1: (536880467, 23, 517742)
Thu Apr 22 00:45:31 1999: arlad: callback for non-existing file (-1, 536880467, 23, 517742)
but ls on Y can see both. When X removes file b, arlad reports nothing
(running with debug=almost-all).
Trying to open the files produces
Thu Apr 22 00:46:46 1999: arlad: worker 0: processing
Thu Apr 22 00:46:46 1999: arlad: Rec message: opcode = 12 (open), size = 40
Thu Apr 22 00:46:46 1999: arlad: read_data
Thu Apr 22 00:46:46 1999: arlad: Error reading length: Network dropped connection because of reset
Thu Apr 22 00:46:46 1999: arlad: multi-sending wakeup: seq = 28, error = 102
Thu Apr 22 00:46:46 1999: arlad: worker 0: done
Thu Apr 22 00:46:46 1999: arlad: worker 0 waiting
Thu Apr 22 00:46:46 1999: arlad: worker 0: processing
Thu Apr 22 00:46:46 1999: arlad: Rec message: opcode = 10 (inactivenode), size = 32
Thu Apr 22 00:46:46 1999: arlad: worker 0: done
Thu Apr 22 00:46:46 1999: arlad: worker 0 waiting
cat: b: Network dropped connection because of reset
When I (needlessly) re-authenticate with kauth, arla seems be re-synched with
reality again.
What can I do to help debug this mess?
(I don't subscribe to the list, so please CC any answers back to me.)
