Hi everybody,
we have a few regarding load at our Haproxy 1.5-dev19 cluster. We run
constantly at a load of 12 - 15 most of it is system load. I started to do
debugging with strace and see constantly the following message:
epoll_ctl(0, EPOLL_CTL_ADD, 1541, {EPOLLIN|0x2000, {u32=1541, u64=1541}}) = 0
epoll_ctl(0, EPOLL_CTL_ADD, 1032, {EPOLLIN|0x2000, {u32=1032, u64=1032}}) = 0
epoll_wait(0, {{EPOLLIN|0x2000, {u32=3685, u64=3685}}}, 200, 0) = 1
splice(0xedb, 0, 0xf09, 0, 0x72b0, 0x3) = -1 EAGAIN (Resource temporarily
unavailable)
recvfrom(5110, 0xaeb50a4, 8192, 0, 0, 0) = -1 EAGAIN (Resource temporarily
unavailable)
On our old cluster i do not see any of the "Resource temporarily unavailable”
at splicing operation.
Could this lead to such a performance impact? Has something changed in kernel
3.11.5? Are there any things which can be tried out at staging cluster to break
down this problem?
Best regards,
Annika
---
Systemadministration
Travian Games GmbH
Wilhelm-Wagenfeld-Str. 22
80807 München
Germany
a.wick...@traviangames.com
www.traviangames.de
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