2012.09.24 14:55 Juergen Nickelsen rašė: > On 22.09.2012 09:40, Tomas Kuliavas wrote: > >> Juergen Nickelsen-3 wrote: > [...] >>> Yet, in a few single cases, users have complained that the download of >>> a >>> large attachment failed due to the object being no longer present, >>> according to SquirrelMail, and after clicking on the folder name, >>> SquirrelMail showed the folder as empty. Only after logout and login >>> again their messages were shown in the folder as before. > [...] >> What's your PHP memory limit and are APC or commercial Zend extensions >> used >> in your setup? > > 256 MB (we could increase that -- is that per Session or for all of > them?); no commercial extensions, rather PHP as it comes out of the > (Debian) box with a few common extensions: > > libapache2-mod-php5 5.3.3-7+squeeze14 > php-db 1.7.13-2 > php-mdb2 2.5.0b2-1 > php-mdb2-driver-mysql 1.5.0b2-1 > php-pear 5.3.3-7+squeeze14 > php5-cli 5.3.3-7+squeeze14 > php5-common 5.3.3-7+squeeze14 > php5-curl 5.3.3-7+squeeze14 > php5-gd 5.3.3-7+squeeze14 > php5-ldap 5.3.3-7+squeeze14 > php5-mysql 5.3.3-7+squeeze14 > php5-suhosin 0.9.32.1-1 PHP APC and Zend Accelerator (or some other component from Zend Platform package) extensions reduce peak memory usage. PHP APC is in main Debian package repo. In PHP 5.2.0+ it is possible to check memory usage with plugin attached to some standard SquirrelMail hooks. 256 MB is high enough and it should be difficult to hit that limit, but peak usage can be affected by memory usage in previous page load. Mailbox display and message view display can trigger higher usage under some conditions. Maybe others have different experience. For me reported peak memory usage differences made PHP APC a must in webmail. Do you have server side sorting enabled and server side threading disabled in SquirrelMail config? Do you use gpg or uudecode plugins? Do those large emails have more text in plain text or html message parts? If possible, check logs for suhosin related errors or try running webmail with suhosin set to simulation mode. -- Tomas ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users
