On Sep 24, 7:34 am, Horse <[EMAIL PROTECTED]> wrote:
> I've written a python script that copies a nightly Oracle backup file
> to another server. Every couple days, the script fails with this
> error message:
>
> Error copying Q:/Oradata/GISPROD/Backups/3UISN35R_1_1 to s:/gisprod/
> backups/3UISN35R_1_1
> [Errno 22] Invalid argument
>
> Here's the code for the function I'm running. The path names are all
> correct, and it works *most of the time*. It only fails about once or
> twice a week. Anyone know where I can get more info on this "errno 22
> invalid argument"?
>
> def CopyNewFiles(SOURCE_DIR, DEST_DIR):
> global STATUS
> try:
> os.chdir(SOURCE_DIR)
> for x in os.listdir(SOURCE_DIR):
> int_time = os.stat(x)[stat.ST_CTIME]
> str_time = time.ctime(int_time)
> if datetime.date.fromtimestamp(int_time + 0.00) >
> YESTERDAY:
> try:
> DEST_FILE = os.path.join(DEST_DIR, x)
> logfile.write(" Copying " + SOURCE_DIR + x + "
> to " + DEST_FILE + "\n")
> logfile.flush()
> if not os.path.isfile(DEST_FILE):
> shutil.copy2(x, DEST_FILE)
I'm not sure of the error; but one possibility is that the source-
directory contents may be modified by some other process, while you
are looping here copying one-by-one the files.
So a file 'x' could be present at the time you enter loop, but gone by
the time you try the shutil.copy2. Again this is just a guess...
Yet another possibility is 'x' is not a regular file (say in unix it
could be a named pipe).. you can try adding a check for x (like
os.path.isfile(x)) and copy only regular files.
Karthik
> else:
> logfile.write(" File exists. Skipping.
> \n")
> logfile.flush()
> except (IOError, os.error), why:
> logfile.write("\n\nError copying " + SOURCE_DIR +
> x + " to " + DEST_FILE + "\n\n")
> logfile.write("\n" + str(why) + "\n")
> logfile.flush()
> STATUS = "FAILED"
> except:
> logfile.write("\n\nUnhandled error in CopyNewFiles\n\n")
> logfile.write("SOURCE_DIR = " + SOURCE_DIR + "\n")
> logfile.write("DEST_DIR = " + DEST_DIR + "\n")
> logfile.flush()
> STATUS = "FAILED"
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