RE: encounter a problem when testing HAProxy
I didn't find this error message in /var/log/messages on any of these three servers. Thanks for your advice, is there any possibility that could cause this? Date: Tue, 14 Aug 2012 13:43:24 -0700 From: mandm_z...@yahoo.com Subject: Re: encounter a problem when testing HAProxy To: jerrythrill...@hotmail.com; haproxy@formilux.org Check your /var/log/messages, you must be hitting a “nf_conntrack: table full, dropping packet” error From: jerry liu To: haproxy@formilux.org Sent: Tuesday, August 14, 2012 9:05 AM Subject: encounter a problem when testing HAProxy Hi, When I was doing a test with HAProxy, I bumped into a problem, I didn't know why it happened, I wish you could help me out. Here's the scenario, I set up HAProxy on server A and apache on server B, I used gatling as the test client that was running on server C to send 1000 requests per second to HAProxy, I noticed that, the current sessions is growing rapidly and when it hit around 9000, the gatling client got the "connection timed out" error. Below is the conf of the HAProxy I was using and attached is the screenshots that shows the status of HAProxy from the beginning of starting test client to the time when the error happened. I'm looking forward to hearing from you soon. globallog 127.0.0.1 local0maxconn 131086 daemon< div>stats socket/tmp/haproxy.sock defaultslog globalmodehttpoption httplog option httpcloseoption dontlognulloption abortonclose log 127.0.0.1 local3retries 3option redispatchmaxconn 131086timeout connect 2contimeout 5 clitimeout 5srvtimeout 5 listen web_proxy ip address of Server A mode http balance roundrobin# cookie SERVERID insert indirect nocache#option httpchk HEAD /index.html HTTP/1.0server webA ip address of Server B stats enablestats hide-versionstats uri /haproxy-stats stats realm Haproxy\ statisticsstats auth admin:adminstats refresh 3sstats admin if TRUE
Detecting Flapping Service
Hi, I have a Ubuntu Server 10.04 (64-bit) running HAProxy 1.4.21 in TCP mode and I was wondering if HAProxy is capable of detecting and removing a flapping service from the pool. If not, is there any workaround that'll take care of flapping services? Any help would be appreciated. Thanks, Amit
Re: encounter a problem when testing HAProxy
Check your /var/log/messages, you must be hitting a “nf_conntrack: table full, dropping packet” error From: jerry liu To: haproxy@formilux.org Sent: Tuesday, August 14, 2012 9:05 AM Subject: encounter a problem when testing HAProxy Hi, When I was doing a test with HAProxy, I bumped into a problem, I didn't know why it happened, I wish you could help me out. Here's the scenario, I set up HAProxy on server A and apache on server B, I used gatling as the test client that was running on server C to send 1000 requests per second to HAProxy, I noticed that, the current sessions is growing rapidly and when it hit around 9000, the gatling client got the "connection timed out" error. Below is the conf of the HAProxy I was using and attached is the screenshots that shows the status of HAProxy from the beginning of starting test client to the time when the error happened. I'm looking forward to hearing from you soon. global log 127.0.0.1 local0 maxconn 131086 daemon< div> stats socket /tmp/haproxy.sock defaults log global mode http option httplog option httpclose option dontlognull option abortonclose log 127.0.0.1 local3 retries 3 option redispatch maxconn 131086 timeout connect 2 contimeout 5 clitimeout 5 srvtimeout 5 listen web_proxy ip address of Server A mode http balance roundrobin # cookie SERVERID insert indirect nocache # option httpchk HEAD /index.html HTTP/1.0 server webA ip address of Server B stats enable stats hide-version stats uri /haproxy-stats stats realm Haproxy\ statistics stats auth admin:admin stats refresh 3s stats admin if TRUE
