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Opened 11 years ago

Closed 11 years ago

#12595 closed defect (bug) (fixed)

import from movable type can timeout and doesn't obey php max_execution_time

Reported by: stevecrozz Owned by:
Milestone: 3.0 Priority: normal
Severity: normal Version: 3.0
Component: Import Keywords: movable type, import, has-patch, needs-testing
Focuses: Cc:


When importing entries with large numbers of comments, the import script can timeout. Raising php's max_execution_time in php.ini doesn't help because the execution time is reset to a hardcoded 30 seconds in mt.php ironically to keep the script from timing out. In some cases it has the opposite effect and doesn't allow for larger timeouts to be set without modifying the import script.

I'm attaching a patch that works for me. This patch simply checks to see if max_execution_time has been set and uses its value (if set) to provide to set_time_limit(), otherwise it uses the same hardcoded 30 second limit.

Attachments (1)

mt-import-max-execution-time-fix.0.patch (580 bytes) - added by stevecrozz 11 years ago.
patch fixing max_execution_time hardcoding in mt.php

Download all attachments as: .zip

Change History (10)

11 years ago

patch fixing max_execution_time hardcoding in mt.php

#1 @stevecrozz
11 years ago

  • Keywords has-patch needs-testing added

Adding has-patch and needs-testing keywords

#2 @dd32
11 years ago

To quote PHP.net's set_time_limit() page:

When called, set_time_limit() restarts the timeout counter from zero. In other words, if the timeout is the default 30 seconds, and 25 seconds into script execution a call such as set_time_limit(20) is made, the script will run for a total of 45 seconds before timing out.

PHP may be configured to have a hard cutoff limit applied as well i believe, that cannot be extended via set_time_limit();

#3 @dd32
11 years ago

  • Resolution set to invalid
  • Status changed from new to closed

i'm closing this as invalid due to the function call. What could be useful however, is the importer broke up so that it can handle it over multiple steps. At least one other importer currently does it that way to ensure that memory usage and time used doesnt skyrocket.

#4 @stevecrozz
11 years ago

dd32: you may have misunderstood, the import script already uses this function call, my patch merely makes it so you can use a value other than 30.

#5 @nacin
11 years ago

  • Milestone set to Unassigned

Maybe we can just go with set_time_limit(0) and allow the script to be run at the mercy of the server. The Livejournal import currently uses this. It's an import, it's not like people won't expect it will take a while.

The real fix of course would be to have the importer do this in stages.

#6 @nacin
11 years ago

(In [13807]) Use set_time_limit(0) in import/mt.php. see #12595

#7 @nacin
11 years ago

  • Milestone changed from Unassigned to 3.0
  • Resolution invalid deleted
  • Status changed from closed to reopened

#8 @nacin
11 years ago

(In [13807]) Use set_time_limit(0) in import/mt.php. see #12595

#9 @nacin
11 years ago

  • Resolution set to fixed
  • Status changed from reopened to closed
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