sockets disabled, out-of-fds
Miroslav Lachman
000.fbsd at quip.cz
Thu Dec 8 11:55:03 CET 2016
Uz podruhe v relativne kratkem case se mi na jednom serveru stalo
nasledujici:
Dec 7 14:09:30 XXX kernel: sonewconn: pcb 0xfffff80185dad188: Listen
queue overflow: 193 already in queue awaiting acceptance (4946 occurrences)
Dec 7 14:10:24 XXX kernel: [zone: pf states] PF states limit reached
Dec 7 14:10:30 XXX kernel: sonewconn: pcb 0xfffff80185dad188: Listen
queue overflow: 193 already in queue awaiting acceptance (15373 occurrences)
Dec 7 14:11:30 XXX kernel: sonewconn: pcb 0xfffff80185dad188: Listen
queue overflow: 193 already in queue awaiting acceptance (13537 occurrences)
Kratce pred tim prestane odpovidat Lighttpd a v jeho logu je
2016-12-07 14:08:53: (connections.c.139) (warning) close: 55 Connection
reset by peer
2016-12-07 14:08:59: (server.c.1759) [note] sockets disabled, out-of-fds
Takze predpokladam, ze ta sonewconn hlaska a PF states limit je az
dusledek problemu Lighttpd.
Proces Lighttpd bezi, ale neodpovida, "service lighttpd restart" problem
vyresi.
Da se tomu nejak predejit? Je tu neco, co bych mohl na systemu "vytunit"?
Ten server je v provozu radu let a nikdy predtim jsem tento problem
nezpozoroval. Na grafech zateze a sitoveho provozu zadne vyrazne
anomalie nevidim. Takze jestli tam probehne nejaky velky sitovy provoz,
je to jen na tak kratkou dobu, ze se to neprojevi v grafu, ktery
zobrazuje prumer za 5 minut.
Mirek
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