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Old 05-29-2009, 04:21 AM   #1
prollocks
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Registered: May 2006
Distribution: Arch 64
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Question Deleted log file - how to get back via file descriptor and keep alive?


Hi all,

I thought I'd rotate a log file manually not realising the Flexlm daemon was still holding onto it. The new file was 0 bytes and would not update.

I managed to find the old file was still being written to via its inode - I can copy the file back from /proc/PID/fd/1

However this is just a copy - is there any way I can point the writing to this file without re-starting the daemon?

( I followed instructions at http://www.finalcog.com/undelete-open-file-from-inode if anyones interested )

Cheers for any help.

P.
 
Old 05-29-2009, 09:08 AM   #2
prollocks
LQ Newbie
 
Registered: May 2006
Distribution: Arch 64
Posts: 25

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Ok - looks like it may be possible as detailed at :-

http://glandium.org/blog/?p=87%22%20...22glandium.org

However it uses debugfs - has anyone ever used this?

I'm weary as this is a Red Hat ES4 machine using LVM/ext3 and from reports it doesn't look safe - looks like I'll have to leave it until its rebooted.

Cheers for looking

P.
 
  


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