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Ahoj, pokousim se nainstalovat kubernetes na CoreOS, rozebiham etcd2 a nejak mi to nechce fungovat, umi nekdo poradit?

Mam 3 coreOS systemy:

• 172.20.1.10 - host:coreos
• 172.20.1.11 - host:core1
• 172.20.1.12 - host:core2

Vsechny pocitace normalne pingnu pres IP i pres hostname.

Idea je, ze na coreOs pustim etcd2 a na ostatnich proxy

Vygeneroval jsem si na https://discovery.etcd.io/new?size=1 : https://discovery.etcd.io/7799977e92a7ec9d7f550fca178d938e.

Na coreos pustim:
etcd2 --name=coreos --discovery=https://discovery.etcd.io/7799977e92a7ec9d7f550fca178d938e --initial-advertise-peer-urls=http://coreos:2380 --listen-peer-urls=http://172.20.1.10:2380 --debug

na core1:
etcd2 --name=core1 --discovery=https://discovery.etcd.io/7799977e92a7ec9d7f550fca178d938e --initial-advertise-peer-urls=http://core1:2380 --listen-peer-urls=http://172.20.1.11:2380 --proxy=on --debug

na coreos pusim:
etcdctl set /message Hello
etcdctl get /message
a vypise Hello, ale kdyz pustim
etcdctl get /message na core 1, vypise asi 20x error:

http: Accept error: accept tcp 127.0.0.1:2379: too many open files; retrying in 5ms
proxy: client 127.0.0.1:42407 closed request prematurely
osutil: received interrupt signal, shutting down...

Nevi nekdo, co s tim?
Diky moc za odpovedi.