A lot of processes respond to a hangup signal, and release and regrab file descriptors without shutting down. You just do a kill -HUP pid and it should do the trick. Athough I highly doubt the -HUP signal would cause any problem, you may want to wait until a time where it wouldn't cause as many problems if it did cause a problem with the process. You might be able to find info in the applications documentation about whether or not it responds to a hangup. Doing a kill -HUP on a process is how many systems handle rotating logfiles: move logfile create new logfile kill -HUP the process so it releases the handle on the old file and grabs the new file --James Cooley > Hi All, > > I have a process which has opened about ten files but > only one of them is currently in use. Each of these > ten files is quite large (about 100MB per each file) > and the partition is getting full now (80% full). > Therefore, I use gzip to compress the other nine files > to save some space. However, I found that the disk > usage is not decreased but increased to 85% after > gzip! > > When I use lsof to check the files opened by that > process, it shows some files are marked deleted as > below > > tecs 17138 tecs 9w REG 104,3 113490637 > 98458 /logs/output.log.20050308 (deleted) > > The system is still holding the file descriptors and > not released. What should I do to free the space? I > cannot stop the process because it is on production > now. > > If I use cp /proc/17138/fd/9 to > /logs/output.log.20050308, it will > recover the original file, but lsof still shows > deleted. Therefore, I cannot use cat /dev/null > > /logs/output.log.20040308 to truncate the file. > Is there any method which can recover the original > file such that I can truncate it and save the disk > space? > > Or, how do I close the file descriptor on other > process without stopping the process (assumed that I > have root priviledge)? > > Thanks in advance. > > Anson > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
