Hi all.

I just seen in the OpenShift repo the following comment.

https://github.com/openshift/origin/blob/master/images/router/haproxy/reload-haproxy#L61-L63

###
# We install the syn eater so that connections that come in during the restart don't
 # go onto the wrong socket, which is then closed.
###

The reload is done in line 84

https://github.com/openshift/origin/blob/master/images/router/haproxy/reload-haproxy#L84

They use

###
/usr/sbin/haproxy -vv
HA-Proxy version 1.5.14 2015/07/02
Copyright 2000-2015 Willy Tarreau <[email protected]>

Build options :
  TARGET  = linux2628
  CPU     = generic
  CC      = gcc
  CFLAGS  = -O2 -g -fno-strict-aliasing -DTCP_USER_TIMEOUT=18
OPTIONS = USE_LINUX_TPROXY=1 USE_ZLIB=1 USE_REGPARM=1 USE_OPENSSL=1 USE_PCRE=1

Default settings :
maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200

Encrypted password support via crypt(3): yes
Built with zlib version : 1.2.7
Compression algorithms supported : identity, deflate, gzip
Built with OpenSSL version : OpenSSL 1.0.1e-fips 11 Feb 2013
Running on OpenSSL version : OpenSSL 1.0.1e-fips 11 Feb 2013
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports prefer-server-ciphers : yes
Built with PCRE version : 8.32 2012-11-30
PCRE library supports JIT : no (USE_PCRE_JIT not set)
Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND

Available polling systems :
      epoll : pref=300,  test result OK
       poll : pref=200,  test result OK
     select : pref=150,  test result OK
Total: 3 (3 usable), will use epoll.
###

I know it's not the latest one ;-/.
Is there really a possibility that at soft-reload incoming request are failed?

Thanks for info.

Cheers Aleks

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