Sometime just before Thursday 25 April 2002 07:52 pm Horst Wrote about:[EUG-LUG:2424] asynchronous file access: ? use chattr +S ? yeah.... and for that matter, how about if your using raid drives? Jamie : On kernel 2.2 and 2.4, both ext2: : : What happens if a cronjob(root) attempts : mv /var/spool/mail/bucket someOtherFilename : while sendmail is appending another message to user bucket's inbox at : the same time. : : - Is there a chance to corrupt the file, or the file system? : : - a quick search points to 'chattr +S fileName' to achieve synchronous : behavior -- a more extented search extended the confusion on my end... : How does the kernel respond to a second write/move request while the : file is written to? a) reject the request, or b) wait and do it later? : : - because of potential risks I hesitate to simply 'try it' : : I am more interested in a general clarification than a work-around for : the mv command, : a) because it is a general issue : b) because the script logic depends on the presence of the two files : involved. : : - Horst : : P.S. This is on a running, remote system where modification of fstab and : reboot is not a good option.
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