Hi all,I'm new to apache. I am experiencing a problem with apache load balancer. I configured the load balancer across 10 app servers (glassfish domains), but when I see the way the cookies (and load) are distributed I see a very uneven distribution. Here is my proxy configuration:
fc112959@kenstgweb01$ more proxy_cluster.conf # configuration for clustering more then one glassfish ProxyPass / balancer://cluster/ stickysession=JSESSIONID nofailover=Off ProxyPassReverse / http://kenstgapp01:8080 ProxyPassReverse / http://kenstgapp01:8280 ProxyPassReverse / http://kenstgapp01:8380 ProxyPassReverse / http://kenstgapp01:8480 ProxyPassReverse / http://kenstgapp01:8580 ProxyPassReverse / http://kenstgapp01:8780 ProxyPassReverse / http://kenstgapp01:8880 ProxyPassReverse / http://kenstgapp01:8980 ProxyPassReverse / http://kenstgapp01:9080 ProxyPassReverse / http://kenstgapp01:9180 <Proxy balancer://cluster/ >BalancerMember http://kenstgapp01:8080 route=kenstgapp01_8080 loadfactor=1 BalancerMember http://kenstgapp01:8280 route=kenstgapp01_8280 loadfactor=1 BalancerMember http://kenstgapp01:8380 route=kenstgapp01_8380 loadfactor=1 BalancerMember http://kenstgapp01:8480 route=kenstgapp01_8480 loadfactor=1 BalancerMember http://kenstgapp01:8580 route=kenstgapp01_8580 loadfactor=1 BalancerMember http://kenstgapp01:8780 route=kenstgapp01_8780 loadfactor=1 BalancerMember http://kenstgapp01:8880 route=kenstgapp01_8880 loadfactor=1 BalancerMember http://kenstgapp01:8980 route=kenstgapp01_8980 loadfactor=1 BalancerMember http://kenstgapp01:9080 route=kenstgapp01_9080 loadfactor=1 BalancerMember http://kenstgapp01:9180 route=kenstgapp01_9180 loadfactor=1
</Proxy> fc112959@kenstgweb01$And here is how the load gets distributed across jmeter 10 clients: as you can see, only 7 of the jvms get work, and among them the amount of work they do is very uneven (second to last entry in each row is % of cpu used by the process). These domains are exactly the same. I've checked the cookie distribution and reflects the load distribution (uneven). If I increase clients I eventually get work in all jvms (still uneven), and that just proves that all jvms can be routed thru apache load balancer. I am generating load with jmeter. Any hints of what am I doing wrong? how to fix it?
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP 1388 root 3338M 3257M sleep 0 0 9:08:45 6.5% java/89
1414 root 3332M 3253M cpu28 0 0 7:32:01 4.2% java/92 1417 root 3333M 3253M cpu9 0 0 7:14:39 2.3% java/96 1424 root 3332M 3254M cpu12 0 0 7:03:12 2.2% java/89 1420 root 3332M 3254M cpu6 0 0 7:35:40 2.1% java/89 1411 root 3333M 3253M cpu29 0 0 7:31:31 1.9% java/87 3461 webservd 40M 32M sleep 0 0 0:00:03 0.3% httpd/1 3460 webservd 36M 26M sleep 0 0 0:00:03 0.3% httpd/1 3462 webservd 36M 26M sleep 0 0 0:00:03 0.3% httpd/1 3457 webservd 32M 27M cpu24 0 0 0:00:02 0.3% httpd/1 1423 root 3333M 3256M sleep 0 0 7:00:01 0.2% java/88 3348 webservd 40M 32M sleep 0 0 0:00:04 0.2% httpd/1 995 root 3536K 3072K sleep 100 - 0:00:46 0.1% cpustat/33 1360 webservd 43M 35M sleep 0 0 0:00:14 0.1% httpd/1 1337 webservd 43M 35M sleep 0 0 0:00:13 0.1% httpd/1 3559 webservd 13M 11M cpu20 0 0 0:00:00 0.1% hgwebdir.cgi/1 883 root 3848K 3832K cpu25 0 0 0:00:13 0.1% prstat/1 1011 webservd 43M 36M sleep 0 0 0:00:15 0.1% httpd/1 77 webservd 9016K 7832K sleep 0 0 0:16:18 0.1% memcached/1 Total: 166 processes, 1525 lwps, load averages: 10.00, 10.20, 10.03 TIA, fdo --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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