Hi Rajesh. Rajesh Kolli wrote on 08.09.2017:
> Hi Aleksandar, > Thank you for your response. Yes, I am using "Log-health-checks" in > my configuration and here is my HAProxy version information. Thanks. sorry to say that but for know you can only take a look into the source for documenation. http://git.haproxy.org/?p=haproxy-1.7.git&a=search&h=HEAD&st=grep&s=PR_O2_LOGHCHKS for example. http://git.haproxy.org/?p=haproxy-1.7.git;a=blob;f=src/checks.c;hb=640d526f8cdad00f7f5043b51f6a34f3f6ebb49f#l307 We are open for patches also for documentation to add this part to the docs ;-) To answer your question below I think layer 4 checks are 'only' tcp checks which sometimes are answered by some os when a service is listen on the specific port. This does not means that the App works properly. I'm open for any correction when my assumption is wrong. Regards Aleks > [root@DS-11-82-R7-CLST-Node1 ~]# haproxy -vv > HA-Proxy version 1.7.8 2017/07/07 > Copyright 2000-2017 Willy Tarreau <wi...@haproxy.org> > Build options : > TARGET = linux2628 > CPU = generic > CC = gcc > CFLAGS = -O2 -g -fno-strict-aliasing -Wdeclaration-after-statement -fwrapv > OPTIONS = > Default settings : > maxconn = 2000, bufsize = 16384, maxrewrite = 1024, maxpollevents = 200 > Thanks & Regards > Rajesh Kolli > -----Original Message----- > From: Aleksandar Lazic [mailto:al-hapr...@none.at] > Sent: Thursday, September 07, 2017 10:08 PM > To: Rajesh Kolli; haproxy@formilux.org > Subject: Re: Need to understand logs > Hi Rajesh. > Rajesh Kolli wrote on 07.09.2017: >> Hello, >> >> I am using HAProxy community version from a month, i need to >> understand logs of HAProxy for the i need your help. >> >> Here is a sample of my logs: >> Sep 6 17:03:31 localhost haproxy[19389]: Health check for server >> Netrovert-sites/DS-11-81-R7-CLST-Node2 succeeded, reason: Layer4 check >> passed, check duration: 0ms, status: 1/2 DOWN. >> Sep 6 17:03:33 localhost haproxy[19389]: Health check for server >> Netrovert-sites/DS-11-81-R7-CLST-Node2 succeeded, reason: Layer4 check >> passed, check duration: 0ms, status: 3/3 UP. >> Sep 6 17:03:33 localhost haproxy[19389]: Server >> Netrovert-sites/DS-11-81-R7-CLST-Node2 is UP. 2 active and 0 backup >> servers online. 0 sessions requeued, 0 total in queue. >> >> Here my doubts are, in first line health check is 1/2 DOWN and 2nd >> line it is 3/3 UP, in both cases Layer4 check passed. How to >> understand it? what exactly it is checking? what are these 1/2 & 1/3's? >> >> Finally, is there any document to understand its logging? > There is a logging part in the doc but I haven't seen such entries in the > document. > http://cbonte.github.io/haproxy-dconv/1.7/configuration.html#8 > Maybe you have activated > http://cbonte.github.io/haproxy-dconv/1.7/configuration.html#4.2-option%20log-health-checks > in your config. > It would be nice to know which haproxy version you use. > haproxy -vv > -- > Best Regards > Aleks > https://www.me2digital.com/ -- Best Regards Aleks
