Hello Apache Community! I'm looking for some assistance. We're running Apache 2.4.41 on Windows Server 2012R2 as a reverse proxy load balancer.
Sometimes, when not serving any requests, the balancer workers report a busyness count greater than 0 (usually 1, but currently 2 and 1) on the balancer-manager status page. They remain 'stuck' and as a result, the requests are unevenly distributed between the 2 workers (load balanced by busyness). Restarting Apache clears the count, but it eventually comes back after a few hours. It has cleared itself once in the past (that I noticed), but happened again later. I tried to debug the process, but the instructions for Windows seems to be outdated: http://httpd.apache.org/dev/debugging.html#backtrace-win I can't find the *-symbols.zip download and drwtsn32 is an old tool from the XP era. Is there updated instructions to debug Apache on Windows? Our environment: - OS: Windows Server 2012 R2 (x64) - Server Version: Apache/2.4.41 (Win64) OpenSSL/1.1.1c - Server Built: Aug 10 2019 13:33:27 - Distributed by: The Apache Haus - Compiled with: Visual Studio 2017 Our configuration: - Single process (winnt mpm) - ThreadsPerChild 15000 - Virtual host with proxy_balancer (HTTP/1.1 TLS 1.2) - 2 balancer workers (https to the 2 application servers) - lbmethod=bybusyness - stickysession=JSESSIONID I don't know if this issue affects other Apache versions. What can I do to troubleshoot this further? Thank you for your time, Maxime Boyer IT Specialist COTS & Web Services Section Information Technology Branch | Direction générale de l'informatique Canada Revenue Agency | Agence du revenu du Canada Government of Canada | Gouvernement du Canada --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
