Bug 122829 – CUPS loses print jobs if hot-pluggable printer removed while spooling.

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 122829 - CUPS loses print jobs if hot-pluggable printer removed while spooling.

Summary:	CUPS loses print jobs if hot-pluggable printer removed while spooling.

Status:	CLOSED UPSTREAM

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	cups (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Tim Waugh
QA Contact:
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2004-05-08 15:41 EDT by David Woodhouse
Modified:	2007-11-30 17:10 EST (History)
CC List:	0 users

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2004-05-12 05:04:49 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description David Woodhouse 2004-05-08 15:41:14 EDT

See the sentence "when this happens, CUPS loses the print job which
was currently being spooled" in #122827.

Cups shouldn't see this as a successful print job. The page was not
printed -- and probably wasn't even completely sent to the printer, or
the printer would have printed it. I suspect CUPS will lose the job
even if the printer is disconnected for other reasons during printing. 

Certainly the acknowledgment had not been received from the printer
telling us that it had actually been rendered.

Comment 1 Tim Waugh 2004-05-11 08:05:12 EDT

Seems that backends are meant to handle retries themselves.  This is
what the USB backend currently does:

while (stuff to do)
  try writing to fd
  if it failed, break
close fd
exit 0

In other words, the USB backend gives up instead of trying again: it
treats a failure to transfer the data as a permanent error.

Comment 2 Tim Waugh 2004-05-11 09:35:23 EDT

Reported upstream.

Comment 3 Tim Waugh 2004-05-12 05:04:49 EDT

http://www.cups.org/str.php?L715

Comment 4 David Woodhouse 2004-05-12 05:31:35 EDT

The fix is crap. We should be reading status back from the printer,
not just counting the bytes we threw at it.

Note You need to log in before you can comment on or make changes to this bug.