Discussion :

[garcimor07]

Bonjour,

J'ai un serveur linux Ubuntu (ubuntu 14.04_LTS-server (64BITS)) loué ici : https://www.online.net/fr/serveur-dedie/dedibox-pro

Mon problème, j'ai en moyenne 45 connectés simultanément sur le site.

Au bout de quelques minutes, le site devient lent, très lent.

Et dès que je fais un :

/etc/init.d/apache2 restart

Boom ! Ca repart, c'est rapide pendant quelques minutes (une dizaine), puis rebelote.

À votre avis pourquoi ?

Merci pour votre aide.

[Invité]

Salut,

Peut-être une fonctionnalité foireuse du site qui ralentit le service web ou le backend?

Il faudrait monitorer le système et regarder dans les logs(apache, db) pour essayer d'avoir un peu plus d'infos.

[garcimor07]

Merci Mygale pour ta réponse,

Voici les dernières lignes de mon log Apache :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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[Tue Apr 21 15:27:40.767225 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 21868 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:28:24.007846 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 22336 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:29:08.070723 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 22731 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:29:08.070770 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 22502 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:29:08.070778 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 22501 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:29:20.008552 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 22499 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:29:20.008595 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 22822 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:30:08.037067 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23183 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:30:16.041121 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23184 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:30:16.041162 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23185 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:30:28.005830 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23253 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:31:08.010120 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23570 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:31:24.544443 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23615 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:31:24.544486 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23617 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:31:38.936201 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23739 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:31:56.941114 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23697 graceful kill fail, sending SIGKILL
libpng warning: Buffer error in compressed datastream in iCCP chunk
libpng warning: Profile size field missing from iCCP chunk
libpng warning: Buffer error in compressed datastream in iCCP chunk
libpng warning: Profile size field missing from iCCP chunk
[Tue Apr 21 15:32:21.139944 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 23950 graceful kill fail, sending SIGKILL
libpng warning: Buffer error in compressed datastream in iCCP chunk
libpng warning: Profile size field missing from iCCP chunk
[Tue Apr 21 15:32:47.415884 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 24032 graceful kill fail, sending SIGKILL
libpng warning: Buffer error in compressed datastream in iCCP chunk
libpng warning: Profile size field missing from iCCP chunk
[Tue Apr 21 15:33:15.746943 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 24167 graceful kill fail, sending SIGKILL
libpng warning: Buffer error in compressed datastream in iCCP chunk
libpng warning: Profile size field missing from iCCP chunk
libpng warning: Buffer error in compressed datastream in iCCP chunk
libpng warning: Profile size field missing from iCCP chunk
[Tue Apr 21 15:33:49.504503 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 24459 graceful kill fail, sending SIGKILL
[Tue Apr 21 15:34:21.717655 2015] [fcgid:warn] [pid 17191] mod_fcgid: process 24529 graceful kill fail, sending SIGKILL

[Invité]

Re,

Aurais-tu d'autres erreurs dans le log qui apparaissent avant l'erreur mod_fcgid: process xxxx graceful kill fail, sending SIGKILL?

[Tlams]

Bonjour,

Il nous faudrait vraiment plus d'informations... 'site lent' n'est pas très explicite.

Au moment des lenteurs:
- Consommation CPU.
- Consommation RAM et Swap.
- Consommation bande passante en up et down.
- Consommation des processus en RAM/cpu (htop).
- Quel est l'URL du site.
- Quels sont les langages de prog utilisés.
- si c'est un cms, le quel.
- S'il y a des scripts 'maison' ?
- Système de cache statique mis en œuvre
- Système de cache dynamique mis en œuvre.
- Toutes spécificités non commune.
- Extrait des log plus complet.
...