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depends on how your PHP module is compiled for instance taking a borland compiled module for Apache (mod_php) and forcing it to work on Unix which has a different memory model would cause segfault so we would need to know the specifics of deployed platform OS Compiler version to determine the cause of this error greetings Martin Gainty ______________________________________________ Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung fuer den Inhalt uebernehmen. Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le destinataire prévu, nous te demandons avec bonté que pour satisfaire informez l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est interdite. Ce message sert à l'information seulement et n'aura pas n'importe quel effet légalement obligatoire. Étant donné que les email peuvent facilement être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité pour le contenu fourni. > Date: Wed, 28 Oct 2009 09:25:53 +0900 > To: vladimir.klykov@xxxxxxxxx > CC: pgsql-general@xxxxxxxxxxxxxx > Subject: Re: PHP + PDO + PGPOOL = Segmentation fault > From: ishii@xxxxxxxxxxxxxx > > I assume you get segfault of pgpool. > Can you take a coredump and backtrace? That will be very helpfull to > inspect your problem. > -- > Tatsuo Ishii > SRA OSS, Inc. Japan > > > Hello, > > > > I have a script which is written in PHP (5.2.8) + PDO (1.0.3). It's stable, > > but actual version of PGSQL driver for PDO don't allow persistent > > connections. > > > > So we decided to use PGPOOL-II-2.2.5. It's configured to work in connection > > pool mode with following settings: > > > > # number of pre-forked child process (I know it's many, but we test from 32 > > till 256) > > num_init_children = 256 > > > > # Number of connection pools allowed for a child process (tested from 2 till > > 10) > > max_pool = 2 > > > > # If idle for this many seconds, child exits. 0 means no timeout. > > child_life_time = 300 > > > > # If idle for this many seconds, connection to PostgreSQL closes. > > # 0 means no timeout. > > connection_life_time = 30 > > > > # If child_max_connections connections were received, child exits. > > # 0 means no exit. > > child_max_connections = 0 > > > > # If client_idle_limit is n (n > 0), the client is forced to be > > # disconnected whenever after n seconds idle (even inside an explicit > > # transactions!) > > # 0 means no disconnect. > > client_idle_limit = 10 > > > > no replication or parallel query support enabled. > > > > When our script establish connection to PGPOOL, it can work well or can fail > > with "Segmentation fault". Measurement shows that 40% of script executions > > failed with "Segmentation fault" and always under heavy stress. > > > > Does anyone faced with such problem? > > -- > > View this message in context: http://www.nabble.com/PHP-%2B-PDO-%2B-PGPOOL-%3D-Segmentation-fault-tp26071405p26071405.html > > Sent from the PostgreSQL - general mailing list archive at Nabble.com. > > -- > Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general Windows 7: It helps you do more. Explore Windows 7. |
