Difference between revisions of "Haproxy hitless reload"
Jump to navigation
Jump to search
| (11 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
| + | - https://www.haproxy.com/blog/haproxy-process-management/ | ||
| + | - https://serverfault.com/questions/1088261/haproxy-apis-reload-config | ||
| + | ``` | ||
| + | echo "show proc" | socat stdio tcp4-connect:192.168.48.2:1234 | ||
| + | echo "reload" | socat stdio tcp4-connect:192.168.48.2:1234 | ||
| + | ``` | ||
| + | |||
| + | ## 2.5 multithreading via nbthread | ||
| + | -https://www.haproxy.com/documentation/hapee/latest/management/multi-threading/ | ||
| + | |||
| + | Older | ||
| + | |||
| + | https://www.haproxy.com/blog/get-to-know-the-haproxy-process-manager/ | ||
| + | https://www.haproxy.com/blog/multithreading-in-haproxy/ | ||
| + | ``` | ||
| + | global | ||
| + | nbproc 1 # haproxy_1 | [ALERT] (7) : config : parsing [/usr/local/etc/haproxy/haproxy.cfg:10] : nbproc is not supported any more since HAProxy 2.5. Threads will automatically be used on multi-processor machines if available. | ||
| + | nbthread 6 | ||
| + | cpu-map auto:1/1-4 0-3 | ||
| + | ``` | ||
| + | |||
| + | Show threads with -T option | ||
| + | ``` | ||
| + | ps -aux | ||
| + | ps -T -p 9 | ||
| + | |||
| + | # ps -aux | ||
| + | USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND | ||
| + | root 1 0.2 0.0 2420 596 ? Ss 16:51 0:00 /bin/sh -c /usr/local/sbin/haproxy -S 0.0.0.0:1234 -W -db -f /usr/local/etc/haproxy/haproxy.cfg | ||
| + | root 7 0.3 0.0 89244 10500 ? S 16:51 0:00 /usr/local/sbin/haproxy -S 0.0.0.0:1234 -W -db -f /usr/local/etc/haproxy/haproxy.cfg | ||
| + | root 9 0.5 0.1 483484 39624 ? Sl 16:51 0:00 /usr/local/sbin/haproxy -S 0.0.0.0:1234 -W -db -f /usr/local/etc/haproxy/haproxy.cfg | ||
| + | root 16 0.1 0.0 2420 584 pts/0 Ss 16:51 0:00 sh | ||
| + | root 22 0.0 0.0 6700 2900 pts/0 R+ 16:51 0:00 ps -aux | ||
| + | # ps -T -p 9 | ||
| + | PID SPID TTY TIME CMD | ||
| + | 9 9 ? 00:00:00 haproxy | ||
| + | 9 10 ? 00:00:00 haproxy | ||
| + | 9 11 ? 00:00:00 haproxy | ||
| + | 9 12 ? 00:00:00 haproxy | ||
| + | 9 13 ? 00:00:00 haproxy | ||
| + | 9 14 ? 00:00:00 haproxy | ||
| + | ``` | ||
| + | |||
| + | |||
| + | # More | ||
| + | |||
https://www.haproxy.com/documentation/hapee/latest/api/runtime-api/overview/ | https://www.haproxy.com/documentation/hapee/latest/api/runtime-api/overview/ | ||
| Line 7: | Line 53: | ||
https://stackoverflow.com/questions/52725226/docker-compose-entrypoint-using-command-exit-code-as-a-failure-detection-mechani | https://stackoverflow.com/questions/52725226/docker-compose-entrypoint-using-command-exit-code-as-a-failure-detection-mechani | ||
| + | |||
| + | |||
| + | https://cdn.haproxy.com/wp-content/uploads/2020/04/20.-Master-CLI_Configuration.png | ||
| + | |||
| + | https://www.haproxy.com/blog/truly-seamless-reloads-with-haproxy-no-more-hacks/ | ||
| + | |||
| + | https://www.haproxy.org/download/2.6/doc/configuration.txt | ||
Latest revision as of 17:27, 26 July 2022
- https://www.haproxy.com/blog/haproxy-process-management/
- https://serverfault.com/questions/1088261/haproxy-apis-reload-config
echo "show proc" | socat stdio tcp4-connect:192.168.48.2:1234 echo "reload" | socat stdio tcp4-connect:192.168.48.2:1234
2.5 multithreading via nbthread
-https://www.haproxy.com/documentation/hapee/latest/management/multi-threading/
Older
https://www.haproxy.com/blog/get-to-know-the-haproxy-process-manager/ https://www.haproxy.com/blog/multithreading-in-haproxy/
global nbproc 1 # haproxy_1 | [ALERT] (7) : config : parsing [/usr/local/etc/haproxy/haproxy.cfg:10] : nbproc is not supported any more since HAProxy 2.5. Threads will automatically be used on multi-processor machines if available. nbthread 6 cpu-map auto:1/1-4 0-3
Show threads with -T option
ps -aux
ps -T -p 9
# ps -aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.2 0.0 2420 596 ? Ss 16:51 0:00 /bin/sh -c /usr/local/sbin/haproxy -S 0.0.0.0:1234 -W -db -f /usr/local/etc/haproxy/haproxy.cfg
root 7 0.3 0.0 89244 10500 ? S 16:51 0:00 /usr/local/sbin/haproxy -S 0.0.0.0:1234 -W -db -f /usr/local/etc/haproxy/haproxy.cfg
root 9 0.5 0.1 483484 39624 ? Sl 16:51 0:00 /usr/local/sbin/haproxy -S 0.0.0.0:1234 -W -db -f /usr/local/etc/haproxy/haproxy.cfg
root 16 0.1 0.0 2420 584 pts/0 Ss 16:51 0:00 sh
root 22 0.0 0.0 6700 2900 pts/0 R+ 16:51 0:00 ps -aux
# ps -T -p 9
PID SPID TTY TIME CMD
9 9 ? 00:00:00 haproxy
9 10 ? 00:00:00 haproxy
9 11 ? 00:00:00 haproxy
9 12 ? 00:00:00 haproxy
9 13 ? 00:00:00 haproxy
9 14 ? 00:00:00 haproxy
More
https://www.haproxy.com/documentation/hapee/latest/api/runtime-api/overview/
https://www.haproxy.com/blog/haproxy-process-management/
https://github.com/snorwin/haproxy-reload-wrapper/blob/main/main.go
https://cdn.haproxy.com/wp-content/uploads/2020/04/20.-Master-CLI_Configuration.png
https://www.haproxy.com/blog/truly-seamless-reloads-with-haproxy-no-more-hacks/