ZF-1276: add ignore_user_abort to Zend_Cache_Backend_File

Issue Type: New Feature Created: 2007-04-14T10:58:11.000+0000 Last Updated: 2008-03-21T16:25:47.000+0000 Status: Resolved Fix version(s): - 1.5.0 (17/Mar/08)

Reporter: Marc Bennewitz (GIATA mbH) (mben) Assignee: Fabien MARTY (fab) Tags: - Zend_Cache

Related issues: Attachments:


If the user disconnect during the write process the cache contains not clompleted data. This can shirk by set the ignore_user_abort to off and after writing to prior value again.


Posted by Gavin (gavin) on 2007-04-16T13:04:20.000+0000

I suggest considering adding this as an option to Zend_Cache.

Posted by Fabien MARTY (fab) on 2007-04-16T15:33:18.000+0000

IMHO, this is useless.

With the default configuration, the hash key won't be ok so the cache will be dropped.

So it's not really a problem if the cache contains not completed data because it won't be used (readControl feature)

Posted by Gavin (gavin) on 2007-04-16T16:03:52.000+0000

True, but in some situations, a failed cache write could be avoided using ingore_user_abort().

Posted by Fabien MARTY (fab) on 2007-04-16T16:33:01.000+0000

sure but is it enough to add a new option in Zend_Cache core ?

I prefer to keep the core away from "not really usefull" options because : - the code is cleaner - perfs are better

Posted by Gavin (gavin) on 2007-04-16T16:47:33.000+0000

I don't have any strong feelings on this, and won't object if you close the issue, because developers could call ignore_user_abort() themselves. However, I doubt adding the following would affect perfs in any meaningful way for those not enabling the proposed option:

<pre class="highlight">
if ($this->_options['user_abort']) { $abort = ignore_user_abort(true); }
if ($this->_options['user_abort']) { ignore_user_abort($abort); }

On the other hand, if something slow and costly was calculated and written by Zend_Cache* corrupted because of a user abort not ignored, the perf cost could be large.

Posted by Fabien MARTY (fab) on 2007-04-19T14:52:17.000+0000

I don't know. I prefer to take some time to think about it.

Posted by Thomas Weidner (thomas) on 2007-05-06T09:30:25.000+0000

Zend_Cache related issue, assigned to Fabien until he has thought about it ;-)

Posted by Fabien MARTY (fab) on 2007-05-08T07:49:34.000+0000

ok for 1.1.0

Posted by Fabien MARTY (fab) on 2008-01-13T12:48:10.000+0000

fixed in SVN

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