On 11/22/10 8:55 PM, Andrey Repin wrote:
> Greetings, Les Mikesell!
>> Realistically, you probably don't need to kick off the job the instant
>> the filesystem changes - you'll at least want to wait until the file
>> transfer completes. I'd expect a scheduled job running from cron on
>> linux or the windows task scheduler checking for new files every few
>> minutes to work at least as well as your existing manual process and
>> avoid any OS/filesystem dependencies (i.e. it could run from linux
>> checking a smb/cifs mounted windows filesystem or the reverse if you want).
> Cron job won't be able to know if file transfer is completed. It will have to
> guess from, e.g., testing the archive (if it's archive) for integrity.
> filesystem notification mechanism will for sure know, when the iostream got
> filewriteclose event.
You can wait until the file timestamp stops changing for a while - but neither
that nor a filesystem notification will tell you if the transfer actually
completed or if it failed midway. However, many transfers use a temporary name,
renaming only when successful and complete so just looking for an expected name
may be enough.
Received on 2010-11-23 05:02:09 CET
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