Interruption intermittente de Pg.dll sur PostgreSQL 9.0.1 + ActivePerl 1007 + Apache 2.2.17 sur Win2k3sp2

Question

Nous avons eu des crash Apache mystérieux et intermittents ces derniers temps, quelques fois par jour, mais sans motif quant à quand et combien de temps entre ou à quelle heure de la journée.

Je voudrais mettre à jour DBD :: Pg, mais je ne pouvais pas trouver de fichier PPD pour quelque chose de plus récent que celui que nous utilisons (2.14.1). Cela dit, les changements depuis lors ne semblent pas particulièrement pertinents à notre utilisation.

L'Observateur d'événements Windows affiche ceci:

Event Type: Error 
Event Source: Application Error 
Event Category: (100) 
Event ID: 1000 
Date:  2010-11-01 
Time:  9:55:28 AM 
User:  N/A 
Computer: myserver 
Description: 
Faulting application httpd.exe, version 2.2.17.0, faulting module Pg.dll, version 0.0.0.0, fault address 0x0000e8a5. 

Je regardais dans les journaux Apache, qui a dit:

[Mon Nov 01 09:55:32 2010] [notice] Parent: child process exited with status 3221225477 -- Restarting. 

Pas très utile, alors j'ai regardé dans les journaux de PostgreSQL (p. dll fait partie de DBD::Pg), et ils ont dit:

2010-11-01 09:55:32 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:32 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 
2010-11-01 09:55:33 EDT LOG: could not receive data from client: No connection could be made because the target machine actively refused it. 


2010-11-01 09:55:33 EDT LOG: unexpected EOF on client connection 

Mais autre que je n'ai aucune idée quant à la cause, sauf peut-être les temps de plus haut (mais pas si élevé - nous avons très peu d'utilisateurs) charge du serveur.

Des idées de quoi cela pourrait-il être responsable?

Answer 1

Des problèmes de réseau intermittents peuvent en être la cause. J'ai essayé de me connecter à PostgreSQL en utilisant psql de Turnkey fonctionnant sur VirtualBox sur le même serveur que PostgreSQL, et les threads de PostgreSQL prendraient beaucoup plus de CPU, et ne permettraient pas la connexion à la fin. L'installation de PostgreSQL sur clé en main a fait que cela s'arrête, il est donc possible qu'il y ait un problème de réseau général au niveau de Windows qui provoque le blocage de PostgreSQL et Pg.dll, qui plante alors Apache, car DBD :: Pg est chargé via mod_perl .