Re: Was able to reproduce "cp: cannot stat file.x: Input/output error"

[Hans Reiser <reiser@namesys.com>]

David Dabbs wrote:

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>>-----Original Message-----
>>From: Hans Reiser [mailto:reiser@namesys.com]
>>Sent: Friday, August 06, 2004 11:16 PM
>>To: David Dabbs
>>Cc: 'Philippe Gramoullé'; 'ReiserFS List'
>>Subject: Re: Was able to reproduce "cp: cannot stat file.x: Input/output
>>error"
>>
>>David Dabbs wrote:
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>>>i.e.
>>>
>>>	"%.c", '`' + (char) rnd
>>>
>>>If you exceed 26 then you will generate filenames that may cause
>>>      
>>>
>>problems.
>>    
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>>>      
>>>
>>Problems that indicate reiser4 bugs or mongo bugs?
>>
>>    
>>
>
>Mongo. The pipe character is not legal in a filename as an example.
>
>I think I have discovered the problem - unless there was a reason mongo was
>issuing mount/unmount commands at the start/end of a mongo 'run' as well as
>before/after _each phase_. I just removed the mount/unmount calls that
>bracket each phase execution and I am not seeing the errors. In addition,
>reiser4 is running much faster. For instance, with the 'extra'
>mount/unmounts r4 reported a REAL TIME stats of approximately 700 & 40 for
>CREATE and MKFILES. After removing the mount/un calls it is reporting 224 &
>50 REAL TIME.
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>
can you quote code more in these emails?

>I will reboot and run a sequence of each of the filesystem configs overnight
>and see what happens.
>
>David
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Probably someone wanted to separate the measurement of the phases.  It 
has been a while since I read mongo.....