[PLESK] Utilizza tutte le risorse

[tecnolive]

Salve,

Ho un server con uno Xeon(R)CPU W3530 @ 2.80GHz con 24 GB di ram.... il server è completamente dedicato ad un dominio che genera circa 40.000 richieste al giorno.... con 10.000 utenti (gestisce applicazioni su facebook).

In 2 giorni plesk ha riempito tutti e 24 GB di ram e ha usato tutto lo swap.. collassando il server....

Ho provato ad accedere sul server cercando di liberare la memoria con sync e svuotare la cache di memoria... ma non ha funzionato....

Cosa posso fare per evitare tutto questo ?

[FlameNetworks]

Per un solo dominio, non ha senso usare un pannello di controllo.

Hai mai pensato di formattare e configurarti un sistema L.A.M.P. senza alcun pannello?

Che release di Plesk è? Sei sicuro che sia stato Plesk a saturare il sistema?

[tecnolive]

Ciao grazie per la risposta,

Plesk 11 l'ultima versione...

Serve il pannello perchè un domani il cliente deve poter aggiungere domini / crearsi account email / ftp / vedere le statistiche / gestire database / ecc in maniera semplice e veloce...

Avevo pensato a realizzare uno script SH che ogni XX Ore risvuotava l ram togliendo i processi "sleep" ... ma come potrei fare ?

[FlameNetworks]

Plesk 11 mmm...mi sembra un pò strano che sia lui la causa, o comunque stento a crederci. Notoriamente non è un peso piuma, ma non ho mai visto sistemi collassare per colpa di Plesk.
Mi viene più da pensare ad Apache, che potrebbe aver saturato la RAM.

Posta la configurazione del webserver, che gli do un'occhiata.

Hai una "foto" del sistema prima che andasse giù? Installa Munin e tieni d'occhio i grafici, così magari abbiamo una visione d'insieme.

[tecnolive]

Questi erano i processi di qulche gg fa..

12481 psaadm 20 0 347m 16m 9688 S 0.0 0.1 0:00.02 sw-engine-cgi
12620 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.93 sw-engine-cgi
12637 psaadm 20 0 366m 63m 37m S 0.0 0.3 0:00.45 sw-engine-cgi
12638 psaadm 20 0 363m 56m 33m S 0.0 0.2 0:00.26 sw-engine-cgi
12639 psaadm 20 0 358m 41m 24m S 0.0 0.2 0:00.18 sw-engine-cgi
12646 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.30 sw-engine-cgi
12664 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.09 sw-engine-cgi
12665 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12666 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12719 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.53 sw-engine-cgi
12736 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
12737 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12738 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12973 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.67 sw-engine-cgi
12975 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.33 sw-engine-cgi
12981 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.98 sw-engine-cgi
12991 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
12992 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12993 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12996 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
12997 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
12998 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.07 sw-engine-cgi
12999 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13000 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13001 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13087 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.82 sw-engine-cgi
13104 psaadm 20 0 357m 42m 25m S 0.0 0.2 0:00.19 sw-engine-cgi
13105 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13106 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi

13239 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.64 sw-engine-cgi
13244 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.90 sw-engine-cgi
13248 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.24 sw-engine-cgi
13256 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.94 sw-engine-cgi
13258 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13259 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13260 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13262 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13263 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13264 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13272 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13273 psaadm 20 0 355m 47m 32m S 0.0 0.2 0:00.37 sw-engine-cgi
13274 psaadm 20 0 356m 47m 31m S 0.0 0.2 0:00.40 sw-engine-cgi
13275 psaadm 20 0 354m 36m 22m S 0.0 0.1 0:00.19 sw-engine-cgi
13276 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13277 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi

13506 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:01.01 sw-engine-cgi
13517 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.51 sw-engine-cgi
13523 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.07 sw-engine-cgi
13524 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13525 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13537 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13538 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13539 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13552 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.26 sw-engine-cgi
13569 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13570 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13571 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13704 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.31 sw-engine-cgi
13721 psaadm 20 0 349m 18m 9308 S 0.0 0.1 0:00.04 sw-engine-cgi
13722 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13723 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13736 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.86 sw-engine-cgi
13753 psaadm 20 0 366m 69m 44m S 0.0 0.3 0:00.80 sw-engine-cgi
13755 psaadm 20 0 371m 73m 42m S 0.0 0.3 0:00.84 sw-engine-cgi
13766 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.97 sw-engine-cgi
13778 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.58 sw-engine-cgi
13783 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13784 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13785 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13798 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13799 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13800 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13888 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.28 sw-engine-cgi
13905 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
13906 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
13907 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14033 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.94 sw-engine-cgi
14036 psaadm 20 0 357m 46m 29m S 0.0 0.2 0:00.15 sw-engine-cgi
14051 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14052 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14053 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14085 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.88 sw-engine-cgi
14102 psaadm 20 0 349m 19m 10m S 0.0 0.1 0:00.04 sw-engine-cgi
14103 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14104 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14119 postfix 20 0 51708 2384 1828 S 0.0 0.0 0:00.00 tlsmgr
14172 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.32 sw-engine-cgi
14189 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14190 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14191 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14229 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.82 sw-engine-cgi
14250 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.43 sw-engine-cgi
14267 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.09 sw-engine-cgi
14268 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14269 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14306 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.99 sw-engine-cgi
14323 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14324 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14325 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14442 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.34 sw-engine-cgi
14459 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14460 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14461 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14556 psaadm 20 0 355m 35m 20m S 0.0 0.1 0:00.11 sw-engine-cgi
14561 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.90 sw-engine-cgi
14572 psaadm 20 0 354m 33m 19m S 0.0 0.1 0:00.05 sw-engine-cgi
14575 psaadm 20 0 355m 35m 20m S 0.0 0.1 0:00.05 sw-engine-cgi
14580 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14581 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14582 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14648 apache 20 0 235m 9336 388 S 0.0 0.0 0:00.34 httpd
14690 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.79 sw-engine-cgi
14707 psaadm 20 0 358m 49m 32m S 0.0 0.2 0:00.28 sw-engine-cgi
14708 psaadm 20 0 355m 42m 28m S 0.0 0.2 0:00.25 sw-engine-cgi
14709 psaadm 20 0 356m 39m 23m S 0.0 0.2 0:00.11 sw-engine-cgi
14717 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.25 sw-engine-cgi
14734 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14735 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14736 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14826 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.97 sw-engine-cgi
14843 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
14844 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14845 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
14988 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.28 sw-engine-cgi
15005 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
15006 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15007 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15040 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.57 sw-engine-cgi
15057 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
15058 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15059 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi

15086 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.93 sw-engine-cgi
15103 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.07 sw-engine-cgi
15104 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15105 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15256 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.31 sw-engine-cgi
15267 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:01.88 sw-engine-cgi
15274 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
15275 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15276 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15285 psaadm 20 0 349m 18m 9308 S 0.0 0.1 0:00.04 sw-engine-cgi
15286 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15287 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15302 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.47 sw-engine-cgi
15319 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
15320 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15321 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15328 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:01.36 sw-engine-cgi
15345 psaadm 20 0 349m 18m 9308 S 0.0 0.1 0:00.03 sw-engine-cgi
15346 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15347 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15349 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:01.06 sw-engine-cgi
15366 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.07 sw-engine-cgi
15367 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15368 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15446 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:02.23 sw-engine-cgi
15463 psaadm 20 0 353m 40m 27m S 0.0 0.2 0:00.46 sw-engine-cgi
15464 psaadm 20 0 352m 38m 26m S 0.0 0.2 0:00.15 sw-engine-cgi
15465 psaadm 20 0 357m 49m 32m S 0.0 0.2 0:00.42 sw-engine-cgi
15572 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.49 sw-engine-cgi
15589 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
15590 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15591 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15614 psaadm 20 0 251m 15m 10m S 0.0 0.1 0:00.98 sw-engine-cgi
15631 psaadm 20 0 351m 25m 14m S 0.0 0.1 0:00.08 sw-engine-cgi
15632 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15633 psaadm 20 0 251m 4800 52 S 0.0 0.0 0:00.00 sw-engine-cgi
15840 psaadm 20 0 251m 15m 10m S 0.0

[FlameNetworks]

Ah ok, allora è proprio lui il colpevole.

Hai dato un'occhiata a questo articolo? KB Parallels

Dice che è relativo a Plesk 10, ma potrebbe servirti.

Che sistema operativo è? Nei log c'è qualcosa di utile da analizzare?

[tecnolive]

Centos 6.2 - Nei log ci sono solo tutte le richieste ai file.... quei processi si mettono in cache...

[tecnolive]

Ma come si può fare in centos un kill di tutti i processi inattivi ? potrebbe essere una soluzione...

[vhosting]

Come detto da flame segui quella guida e forse il problema sara' risolto. Tuttavia, giusto per curiosita', posti la versione del tuo kernel?

[andonio]

Hai per caso installato il kernel con la patch grsecurity? Credo che sia proprio quello il problema.

[vhosting]

Hai per caso installato il kernel con la patch grsecurity? Credo che sia proprio quello il problema.

Per questo avevo chiesto di postare la versione del kernel :P

[tecnolive]

kernel 3.2.13-grsec-xxxx-grs-ipv6-64

[tecnolive]

Credo di aver risolto però

[tecnolive]

Perchè la patch grsecurity dovrebbe causare questi problemi ?

[vhosting]

Cambia kernel senza il grsec e risolvi il tuo problema, molto probabilmente tu usi server OVH? ... (non conosco altri provider mettono il grsec di default sui kernel).

Il perche non te lo so dire pero' e' un problema conosciuto.

Ciao.