One may think changing PHP session handler from file based to database driven is fully transparent. … based sessions PHP will lock session file for whole script execution duration, which means all requests from the same sessions will be serialized on PHP level, which means they also will be serialized for single user on database level. If you change to store PHP sessions…
Post: Worse than DDOS
August 18, 2008 By 5 Comments
…. If you’re using PHP functions make sure default_socket_timeout has proper value or set it per session. Set Curl Timeouts… stages and just setting timeout is not enough. Beware of PHP sessions “files” handler I already wrote about this topic, but when… are much easier with say memcached session storage – this does not cause any locks for parallel session use so only the process…
Post: Are PHP persistent connections evil ?
November 12, 2006 By 31 Comments
… pooling would be extremely helpful but with default Processed based PHP installations it does not work. Interesting enough these problem of… trouble back again, not to mention about possibly changed per session variables. Many applications are fine – ie if you have read… your site uses same charset and does not use per session variables in some tricky way it would work perfect for…
Comment: PHP Sessions - Files vs Database Based
March 27, 2007 By 38 Comments
… on the same session as you would have processes waiting on the same file in case of file based PHP sessions. If you have high concurrency within single session it of course does not work well but in this case plain MySQL sessions based session storage may not…
Comment: PHP Sessions - Files vs Database Based
April 5, 2007 By 38 Comments
…PHP Sessions – Files vs Database Based Dicas para utilização de mysql como “session handler”. Notei um dia desses que php 5.2… por padrão e com isso, suporte a sqlite como “session handler”. Verei algum esquema em breve para compartilhar sessão…
Comment: PHP Sessions - Files vs Database Based
June 28, 2009 By 38 Comments
….virtualthinking.com/loadhtml.php?where=scripts&what=art_show.php&db_target=00000000024 It doesn’t implement a custom session handler, but it works in a similar manner, and has the added benefit of being able to work with traditional PHP sessions…
Comment: Beyond great cache hit ratio
May 20, 2010 By 2 Comments
Jonathan, use repcached patch for memcached – it is stable solution that we used to share php session state over cluster (php stores session via memcache handler)
Post: Commodity Hardware, Commodity Software and Commodity People
June 15, 2007 By 9 Comments
…, MySQL is more simple to use than Oracle or DB2, PHP is more simple than Java. Even for the same Vendors… lighter top part ? The same way as you can run PHP as part of Apache but you can hook it up… are bunch of interfaces to talk to MySQL cluster as PHP session storage or as a REST Web Service, which are all…
Post: Percona sessions at the MySQL conference
March 15, 2010 By 6 Comments
…: Performance and Feature Enhancements to MySQL and InnoDB Fernando Ipar: PHP Object-Relational Mapping Libraries In Action Baron Schwartz: Read-Write… you, you might also want to attend the Maatkit BoF session. We look forward to seeing you there. It’s going…
Post: mk-query-digest, query comments and the query cache
…” SQL queries with additional information such as the PHP source line and user session information by embedding this information in a specially…, and that this comment includes important information, such as the PHP session ID, and the application user name. This allows mk-query… information to display only queries from a particular file, particular session or particular user for example. The –embedded-attributes option takes…