Hello everybody,
shortly after starting haproxy on one of our servers, haproxy goes to
100% and stays there.
We have multiple instances of haproxy running on various servers, but
only one instance is consistently running at 100%.
We are running
* 3 instances with 1.4.24-1~bpo70+1 (Debian wheezy-backports)
* 2 instances with 1.4.18-0ubuntu1.2 (Ubuntu precise)
However only the one Debian instance is having the problem.
Note that haproxy 1.4.24-1~bpo70+1 should contain the latest CPU related
fixes discussed here.
When I strace that instance, it's showing lots and lots of:
epoll_wait(0, {}, 200, 0) = 0
Thus is seems very similar to the problem discussed here [1], which
seems not to have reached any solution (?).
I've seen this problem only lately. And there are two things that
happened lately:
* we upgraded from Ubuntu's 1.4.15-1ubuntu0.1 to Debian's 1.4.24-1~bpo70+1
* we've started to use TPROXY
Here's our configuration (all IPs have been replaced):
#############################################
global
log localhost local0
maxconn 10000
user root
group root
#pidfile /var/run/haproxy.pid
stats socket /var/run/haproxy_stats user haproxy group haproxy mode
660 level admin
daemon
defaults
mode http
balance roundrobin
log global
#option httplog [ clf ] format CLF pro analyzeri http logu
option dontlognull
# = Change log level for non-completely successful connections
option log-separate-errors
option abortonclose
option redispatch
retries 3
option httpchk HEAD /keepalive.html HTTP/1.0
timeout check 3s
timeout connect 30s
timeout client 30s
timeout server 30s
listen smtp 4.3.2.1:25,4.3.2.1:465 #smtp ssmpt
mode tcp
maxconn 100
source 0.0.0.0 usesrc clientip
server serverm 192.168.1.1
listen imap 4.3.2.1:143,4.3.2.1:993,4.3.2.1:4190 #imap imaps esieve
mode tcp
maxconn 100
timeout client 12h
timeout server 12h
source 0.0.0.0 usesrc clientip
server serverm 192.168.1.1
# --- scm.sourcepole.ch ---
listen git-ssh 4.3.2.1:22
mode tcp
maxconn 100
timeout client 30m
timeout server 30m
server servers 192.168.1.2
listen git 4.3.2.1:9418
mode tcp
maxconn 100
server servers 192.168.1.2
backend stats
stats enable
stats uri /
stats auth foo:bar
stats realm Lalala
stats refresh 2
#############################################
Any tips/ideas on how to proceed from here?
*t
[1] http://www.mail-archive.com/[email protected]/msg08467.html
