Re: [PHP] Saving session to database
On Thu, May 16, 2013 at 2:49 PM, Lester Caine les...@lsces.co.uk wrote: Matijn Woudt wrote: On Thu, May 16, 2013 at 10:43 AM, Lester Caine les...@lsces.co.uk mailto:les...@lsces.co.uk wrote: I'm having a problem with webtrees ... http://webtrees.net/ My copy is running on http://webtrees.lsces.org.uk and you will see that it is throwing an error relating to the session handling. Running Apache 2.2.22, PHP5.4.14, MySQL 5.5.31 ( http://lsces.org.uk/phpinfo.__**phphttp://lsces.org.uk/phpinfo.__php http://lsces.org.uk/phpinfo.**php http://lsces.org.uk/phpinfo.php ) If I comment out the session_set_save_handler() section of session.php then I can log in and use the site. Have tried reworking that as a SessionHandlerInterface without any success. As far as I can see, the 'write' function of the handler is not being called and while there are various notes about problems with PHP5.4 blocking access to the write and close functions, none of the fixes I have tried have resulted in a working setup. Anybody seen this problem with PHP5.4? http://lsces.org.uk/hg/__**webtrees/file/dcf6ff358108/__** includes/session.php#l334http://lsces.org.uk/hg/__webtrees/file/dcf6ff358108/__includes/session.php#l334 http://lsces.org.uk/hg/**webtrees/file/dcf6ff358108/** includes/session.php#l334http://lsces.org.uk/hg/webtrees/file/dcf6ff358108/includes/session.php#l334 is the code that seems to be failing. What error do you get? I tried loading the site but it shows up fine. In general, you should post the error message in your email anyway, for two reasons: 1) Most people on this list don't bother to open a (terrible slow) website. 2) Archives, so if anyone after you comes up with the same problem, he will be able to refer to the archives to find his solution. Been working on this most of the morning without success :( Faulty version is back up, and showing all the error messages, but basically ... ERROR 2: session_regenerate_id(): Session object destruction failed 0 Error occurred on in function session_regenerate_id But I think it's the initial session write that is failing ERROR 2: session_write_close(): Failed to write session data (user). Please verify that the current setting of session.save_path is correct (/var/lib/php5) 0 Error occurred on in function session_write_close But it should be writing to the database not the file directory. It seems to me the session functions are failing, probably due to problems with the database. Have you checked that there actually is a ##session table in your database? You might want to add some debugging code to these functions, to check if errors occur with inserting or retrieving the sessions from the database. - Matijn
Re: [PHP] Saving session to database
Matijn Woudt wrote: It seems to me the session functions are failing, probably due to problems with the database. Have you checked that there actually is a ##session table in your database? You might want to add some debugging code to these functions, to check if errors occur with inserting or retrieving the sessions from the database. Well past that stage without making any progress. Using the write function outside of the session_set_save_handler() it works perfectly, and then the read can see the saved sessions and can load them. I am convinced that something is wrong with the general setup which is preventing the write and close from firing when it should. I can not trace any attempt to call the write function in the session handling. I'm currently checking out the adodb-session handler which WAS working in PHP5.3 but seems to be showing similar problems in PHP5.4 -- Lester Caine - G8HFL - Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Saving session to database
On Fri, May 17, 2013 at 8:07 PM, Lester Caine les...@lsces.co.uk wrote: Matijn Woudt wrote: It seems to me the session functions are failing, probably due to problems with the database. Have you checked that there actually is a ##session table in your database? You might want to add some debugging code to these functions, to check if errors occur with inserting or retrieving the sessions from the database. Well past that stage without making any progress. Using the write function outside of the session_set_save_handler() it works perfectly, and then the read can see the saved sessions and can load them. I am convinced that something is wrong with the general setup which is preventing the write and close from firing when it should. I can not trace any attempt to call the write function in the session handling. I'm currently checking out the adodb-session handler which WAS working in PHP5.3 but seems to be showing similar problems in PHP5.4 Well, I'm not sure what would be the problem here, but some general comments: There have been various changes in session handling between 5.3 and 5.4, so most likely it is in there. Check if there are any references to register_shutdown_function, and replace them with session_register_shutdown. Second, check the return value of session_set_save_handler, it is a bad habit not checking return value of a function, just because it works. If that doesn't help, take the session piece out of the big framework, and test it in a separate file. If that also fails, you've got a small piece of code you can post here which will encourage others to have a look at it at their box. - Matijn
Re: [PHP] Saving session to database
I've found database session storage requires extra diligence in error handling. When I see that error at 0 it is usually because something blew up either before the session handler was ready or after it was torn down. Andrew On May 17, 2013 2:42 PM, Matijn Woudt tijn...@gmail.com wrote: On Fri, May 17, 2013 at 8:07 PM, Lester Caine les...@lsces.co.uk wrote: Matijn Woudt wrote: It seems to me the session functions are failing, probably due to problems with the database. Have you checked that there actually is a ##session table in your database? You might want to add some debugging code to these functions, to check if errors occur with inserting or retrieving the sessions from the database. Well past that stage without making any progress. Using the write function outside of the session_set_save_handler() it works perfectly, and then the read can see the saved sessions and can load them. I am convinced that something is wrong with the general setup which is preventing the write and close from firing when it should. I can not trace any attempt to call the write function in the session handling. I'm currently checking out the adodb-session handler which WAS working in PHP5.3 but seems to be showing similar problems in PHP5.4 Well, I'm not sure what would be the problem here, but some general comments: There have been various changes in session handling between 5.3 and 5.4, so most likely it is in there. Check if there are any references to register_shutdown_function, and replace them with session_register_shutdown. Second, check the return value of session_set_save_handler, it is a bad habit not checking return value of a function, just because it works. If that doesn't help, take the session piece out of the big framework, and test it in a separate file. If that also fails, you've got a small piece of code you can post here which will encourage others to have a look at it at their box. - Matijn
Re: [PHP] Saving session to database
Andrew Ballard wrote: I've found database session storage requires extra diligence in error handling. When I see that error at 0 it is usually because something blew up either before the session handler was ready or after it was torn down. Found the culprit ... Suhosin http://www.simplemachines.org/community/index.php?topic=486606.0 gives the pointer but I've not followed through on an updated version. This is a stock SUSE install and I don't want to manually 'fix' it so I've just disabled Suhosin. -- Lester Caine - G8HFL - Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Saving session to database
On Thu, May 16, 2013 at 10:43 AM, Lester Caine les...@lsces.co.uk wrote: I'm having a problem with webtrees ... http://webtrees.net/ My copy is running on http://webtrees.lsces.org.uk and you will see that it is throwing an error relating to the session handling. Running Apache 2.2.22, PHP5.4.14, MySQL 5.5.31 ( http://lsces.org.uk/phpinfo.**php http://lsces.org.uk/phpinfo.php ) If I comment out the session_set_save_handler() section of session.php then I can log in and use the site. Have tried reworking that as a SessionHandlerInterface without any success. As far as I can see, the 'write' function of the handler is not being called and while there are various notes about problems with PHP5.4 blocking access to the write and close functions, none of the fixes I have tried have resulted in a working setup. Anybody seen this problem with PHP5.4? http://lsces.org.uk/hg/**webtrees/file/dcf6ff358108/** includes/session.php#l334http://lsces.org.uk/hg/webtrees/file/dcf6ff358108/includes/session.php#l334is the code that seems to be failing. What error do you get? I tried loading the site but it shows up fine. In general, you should post the error message in your email anyway, for two reasons: 1) Most people on this list don't bother to open a (terrible slow) website. 2) Archives, so if anyone after you comes up with the same problem, he will be able to refer to the archives to find his solution. - Matijn
Re: [PHP] Saving session to database
Matijn Woudt wrote: On Thu, May 16, 2013 at 10:43 AM, Lester Caine les...@lsces.co.uk mailto:les...@lsces.co.uk wrote: I'm having a problem with webtrees ... http://webtrees.net/ My copy is running on http://webtrees.lsces.org.uk and you will see that it is throwing an error relating to the session handling. Running Apache 2.2.22, PHP5.4.14, MySQL 5.5.31 ( http://lsces.org.uk/phpinfo.__php http://lsces.org.uk/phpinfo.php ) If I comment out the session_set_save_handler() section of session.php then I can log in and use the site. Have tried reworking that as a SessionHandlerInterface without any success. As far as I can see, the 'write' function of the handler is not being called and while there are various notes about problems with PHP5.4 blocking access to the write and close functions, none of the fixes I have tried have resulted in a working setup. Anybody seen this problem with PHP5.4? http://lsces.org.uk/hg/__webtrees/file/dcf6ff358108/__includes/session.php#l334 http://lsces.org.uk/hg/webtrees/file/dcf6ff358108/includes/session.php#l334 is the code that seems to be failing. What error do you get? I tried loading the site but it shows up fine. In general, you should post the error message in your email anyway, for two reasons: 1) Most people on this list don't bother to open a (terrible slow) website. 2) Archives, so if anyone after you comes up with the same problem, he will be able to refer to the archives to find his solution. Been working on this most of the morning without success :( Faulty version is back up, and showing all the error messages, but basically ... ERROR 2: session_regenerate_id(): Session object destruction failed 0 Error occurred on in function session_regenerate_id But I think it's the initial session write that is failing ERROR 2: session_write_close(): Failed to write session data (user). Please verify that the current setting of session.save_path is correct (/var/lib/php5) 0 Error occurred on in function session_write_close But it should be writing to the database not the file directory. -- Lester Caine - G8HFL - Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
