[ic] Purging session/ and tmp/ - expireall, or rm?
paul at gishnetwork.com
Fri Nov 21 09:47:48 EST 2003
ICdev [interchange.mail at virgin.net] wrote:
> Mike Heins wrote:
>> Quoting ICdev (interchange.mail at virgin.net):
>>> I'm not quite clear on which method I should use in crontab to
>>> clear the contents of the 'session' and 'tmp' directories.
>>> In the icadvanced document, it says that if you're using DBM
>>> sessions, you should use expireall. I am using standard session
>>> files, but having searched the archives, people seem to be using
>>> expireall or plain old rm arbitrarily, or even both, one after the
>>> So, which of the following should I use?:
>>> 20 4 * * * su -c "/usr/lib/interchange/bin/expireall -r" interch
>>> 20 4 * * * find /var/lib/interchange/store_name/session -type f
>>> -mtime +2
>>>> xargs rm -fv
>>> 20 4 * * * find /var/lib/interchange/store_name/tmp -type f -mtime
>>> +2 | xargs rm -fv
>>> , or doesn't it matter? Shouldn't the parent directories of the
>>> session files be deleted too?
>>> I tried expireall manually - it took its time executing, but didn't
>>> seem to have any affect on the stuff in session and tmp; I'm
>>> guessing that's because it's less than a day old.
>>> *Finally*, what if someone is placing an order just as their session
>>> files are deleted with rm?
>> I use a very simple little script I call clean_session_tmp to do it:
>> for DIR in $*
>> for i in session tmp
>> if test -d $DIR/$i
>> find $DIR/$i -type f -mmin +480 | xargs
>> --no-run-if-empty rm find $DIR/$i -type d -empty -depth -mindepth 1
>> | xargs --no-run-if-empty rmdir else echo "$0:
>> $DIR/$i doesn't exist." fi
>> The 480 is 8 hours. You can change the number to what you want.
>> It is called in cron:
>> 22 4 * * * /usr/local/interchange/bin/clean_session_tmp
> Thank you Mike, that's very helpful.
> I'm just wondering; if this is done *during* order processing, does
> IC (4.8.7)
> have some kind of error handling in the event of a partially read
> session file?
I am not quite sure if I understand your question, but I believe in the above
code, it will only delete session files older than 8 hours, so recent ones are
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