Hello!
I have some problems with NFS. Actually, I think, with cached data.
(May be that's not NFS problem, but I wanto understand where it is)
My test is very simply: two processes on two machines. First process
writes data to file via NFS. Then second process reads this file and checks.
Then first writes another data, and then second reads it and
checks. (Totally 10 iterations).
All times processes are syncronized.
First ---WRITE--+-----------+--WRITE2---+-------+--...
| | | ...
Second----------+---READ----+-----------+--READ-+--...
^ ^ ^ ^
\ | / /
\ | / /
----BARIERS------+------
On second or third iteration second process often reads
OLD data! (I guess cached).
Can you help me in this case?
Serg.
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Message-ID: <34B0DA07.FB40015F@vvv.srcc.msu.su>
Date: Mon, 05 Jan 1998 16:03:03 +0300
From: Sergey Zhumatiy <serg@vvv.srcc.msu.su>
Organization: SRCC
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To: Majordomo@vger.rutgers.edu
Subject: NFS troubles
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Hello!
I have some problems with NFS. Actually, I think, with cached data.
(May be that's not NFS problem, but I wanto understand where it is)
My test is very simply: two processes on two machines. First process
writes data to file via NFS. Then second process reads this file and checks.
Then first writes another data, and then second reads it and
checks. (Totally 10 iterations).
All times processes are syncronized.
First ---WRITE--+-----------+--WRITE2---+-------+--...
| | | ...
Second----------+---READ----+-----------+--READ-+--...
^ ^ ^ ^
\ | / /
\ | / /
----BARIERS------+------
On second or third iteration second process often reads
OLD data! (I guess cached).
Can you help me in this case?
Serg.
--------------851DF90254FE122B329FAFA2--