Re: lua memory usage on haproxy 1.8.1

[Thierry Fournier]

Hi Laurent, I think that I catch the bug. Could you test the attached patch ? Just for information, this patch is not ready to be published, but it fix the bug. Thanks, thierry

0001-BUGFIX.patch
Description: Binary data

On 9 Dec 2017, at 00:37, Thierry Fournier <tfourn...@arpalert.org> wrote: Hi Laurent, I reproduce the bug with version 1.81 without thread support. I will check for this. Thierry On 8 Dec 2017, at 13:05, Laurent Penot <pen...@gmail.com> wrote: Hi list, Having added lua to haproxy is really very very helpful, thanks a lot for this. I’m using it heavily. I need to open a socket to get the content of a web page from my local network, and I do that every second using a task. It’s in production use since lua is available in haproxy, and it has always worked fine (for now, production servers are using haproxy 1.7.9 and lua 5.3.4). This task is running well on haproxy 1.7.9 and lua 5.3.4 but seems to not release memory when running on haproxy 1.8.1 with lua (either 5.3.3 or 5.3.4, result is the same) It’s running on a centox 7 box, kernel 3.10. Please find below the task, cfg, and result of haproxy –vv. Do you know if I need to change something in this task to release memory with haproxy 1.8.1 ? I removed all the unnecessary code, so here is the lua task : function updateTest()     local s     local msg     local infos     while true do         s = core.tcp()         s:connect("ipv4@172.16.1.1:10011")         s:send("GET / HTTP/1.0\r\n\r\n")         msg = s:receive("*a") --        if (msg ~= nil) then --            core.Info('msg:' .. tostring(msg)) --        end         msg = nil         -- close conection         s:close()         s = nil         infos = core.get_info()         core.Info('PoolUsed_MB:' .. tostring(infos['PoolUsed_MB']))         infos = nil         core.sleep(1)     end end core.register_task(updateTest) Here is the haproxy infos: HA-Proxy version 1.8.1 2017/12/03 Copyright 2000-2017 Willy Tarreau <wi...@haproxy.org> Build options :   TARGET  = linux2628   CPU     = generic   CC      = gcc   CFLAGS  = -m64 -march=x86-64 -O2 -g -fno-strict-aliasing -Wdeclaration-after-statement -fwrapv -Wno-unused-label   OPTIONS = USE_ZLIB=1 USE_REGPARM=1 USE_OPENSSL=1 USE_LUA=yes USE_DEVICEATLAS=1 USE_SYSTEMD=1 USE_STATIC_PCRE=1 USE_PCRE_JIT=1 Default settings :   maxconn = 2000, bufsize = 16384, maxrewrite = 1024, maxpollevents = 200 Built with OpenSSL version : OpenSSL 1.0.2k  26 Jan 2017 Running on OpenSSL version : OpenSSL 1.0.2k  26 Jan 2017 OpenSSL library supports TLS extensions : yes OpenSSL library supports SNI : yes OpenSSL library supports : SSLv3 TLSv1.0 TLSv1.1 TLSv1.2 Built with Lua version : Lua 5.3.3 Built with DeviceAtlas support. Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND Encrypted password support via crypt(3): yes Built with PCRE version : 8.41 2017-07-05 Running on PCRE version : 8.41 2017-07-05 PCRE library supports JIT : yes Built with zlib version : 1.2.7 Running on zlib version : 1.2.7 Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip") Built with network namespace support. 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. Available filters : [SPOE] spoe [COMP] compression [TRACE] trace Here is a part of the config file (defaults, timeout, … removed): global     chroot      /var/run/haproxy     pidfile     /var/run/haproxy.pid     user        haproxy     group       haproxy     master-worker     lua-load /etc/haproxy/lua/test.lua best regards Laurent