Re: Problem with BOM in healthcheck-file?
Hello, Am 20.07.2017 um 17:28 schrieb rai...@ultra-secure.de: > > >> od -c bomfile. > > > 000 377 376 s \0 e \0 r \0 v \0 e \0 r \0 _ \0 > 020 u \0 p \0 \r \0 \n \0 > 030 > Obviously haproxy can't match this. Not only because of the BOM, but also because it really is UTF-16-le (note \0 after each character). "http-check expect string" matches an exact ASCII string. I'm unable to reproduce the hang in freebsd 10.1/amd64. Does it reliably hang in your setup? When it hangs, do you see high CPU usage in haproxy or the system? Regards, Lukas
Re: Problem with BOM in healthcheck-file?
Am 2017-07-20 14:18, schrieb Jarno Huuskonen: Can you share how you've configured health checks in haproxy.cfg ? backend site-back balance roundrobin mode http option httpchk GET /healthcheck.htm HTTP/1.1\r\nHost:\ site.com\r\nConnection:\ close http-check expect string server_up http-check disable-on-404 cookie SERVERID insert indirect nocache server SERVER1 ip1:80 check maxconn 3000 cookie s1 server SERVER2 ip2:80 check maxconn 3000 cookie s2 And can you show curl -v output of the BOM response and (lb2-beeline-prod ) 0 # curl -v -H "Host: site.com" http://ip1:80//Healthcheck_broken.htm * Trying ip1... * TCP_NODELAY set * Connected to ip1 (ip1) port 80 (#0) GET //Healthcheck_broken.htm HTTP/1.1 Host: site.com User-Agent: curl/7.50.3 Accept: */* < HTTP/1.1 200 OK < Content-Type: text/html < Last-Modified: Thu, 20 Jul 2017 15:18:51 GMT < Accept-Ranges: bytes < ETag: "4d832b7e6b1d31:0" < Server: Microsoft-IIS/8.5 < Date: Thu, 20 Jul 2017 15:27:08 GMT < Content-Length: 24 < ��server_up * Curl_http_done: called premature == 0 * Connection #0 to host ip1 left intact od -c bomfile. 000 377 376 s \0 e \0 r \0 v \0 e \0 r \0 _ \0 020 u \0 p \0 \r \0 \n \0 030
Re: Problem with BOM in healthcheck-file?
Hi, On Thu, Jul 20, rai...@ultra-secure.de wrote: > I had a very strange situation earlier. > > He have a site behind a haproxy/nginx combination, it has been > working for years. > (It's Windows). > > However, suddenly I get L7 timeouts. > > But curl to the healthcheck URL works perfectly. > > The output I get looks like this: > > ��server_up > > Piping curl through cat -v looks like this: > > M-^?M-~s^@e^@r^@v^@e^@r^@_^@u^@p^@^M^@ > ^@ > > They have started to generate this file via a powershell script and > it has inserted a byte-order-mark into the file (BOM). > Took a while to figure this out ;-) > > haproxy 1.6.9 (FreeBSD 10-amd64) seems to actually choke on these > files and hang - I had to kill -9 it. > > After replacing the file with its previous, ASCII-only copy, > everything started to work again. > > Can anyone reproduce this? Can you share how you've configured health checks in haproxy.cfg ? And can you show curl -v output of the BOM response and od -c bomfile. > Maybe it's fixed in later versions? (AFAIK 1.6.13 has some freebsd related fixes (http://www.haproxy.org/download/1.6/src/CHANGELOG)). (https://www.mail-archive.com/haproxy@formilux.org/msg25807.html) -- Jarno Huuskonen
Problem with BOM in healthcheck-file?
Hi, I had a very strange situation earlier. He have a site behind a haproxy/nginx combination, it has been working for years. (It's Windows). However, suddenly I get L7 timeouts. But curl to the healthcheck URL works perfectly. The output I get looks like this: ��server_up Piping curl through cat -v looks like this: M-^?M-~s^@e^@r^@v^@e^@r^@_^@u^@p^@^M^@ ^@ They have started to generate this file via a powershell script and it has inserted a byte-order-mark into the file (BOM). Took a while to figure this out ;-) haproxy 1.6.9 (FreeBSD 10-amd64) seems to actually choke on these files and hang - I had to kill -9 it. After replacing the file with its previous, ASCII-only copy, everything started to work again. Can anyone reproduce this? Maybe it's fixed in later versions? Regards Rainer
