Hello All,
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We have apache servers running on RedHat Linux physical servers, all 4 servers are balanced by Citrix Netscaler 8.1 load balancer with round robin weight load sharing algorithm.
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However when I check the server status page to find the number of requests are served by each Apache server is showing uneven load / number of requests being processed by each Apache.
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I notice the load always getting processed by two specific Apache instances, here are the configuration details.
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Attached here the server status screen shot page of all 4 web servers.
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[root@web bin]# ./apachectl -version
Server version: Apache/2.2.6 (Unix)
Server built:�� Sep 26 2007 11:18:50
[root@web bin]#
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Operating System:
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Linux Host1 2.4.21-53.ELsmp #1 SMP Wed Nov 14 03:54:12 EST 2007 i686 i686 i386 GNU/Linux
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Hardware configuration are same for all 4 physical Linux servers.
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Please advice.
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Best Regards,
Arun J
Title: Apache Status
Apache Server Status for Server_NameServer Version: Apache/2.2.6 (Unix) mod_ssl/2.2.6 /content/openContent.do?contentId=14806&wtGroup=HWREDIRECT&wtID=firstladies [R=301,L,NC] PHP/5.2.4 Server Built: Sep 26 2007 11:18:50 Current Time: Tuesday, 26-Jan-2010 14:10:42 EST Restart Time: Tuesday, 19-Jan-2010 17:18:15 EST Parent Server Generation: 2 Server uptime: 6 days 20 hours 52 minutes 27 seconds Total accesses: 4533268 - Total Traffic: 129.2 GB CPU Usage: u1268.46 s135.24 cu0 cs0 - .236% CPU load 7.64 requests/sec - 228.2 kB/second - 29.9 kB/request 9 requests currently being processed, 41 idle workers W___W....C...__W_.____._.__._.__.C._..____.._...W.W_____._____.W._.._..___._W.__..._............................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ Scoreboard Key: |
Apache Server Status for Server_NameServer Version: Apache/2.2.6 (Unix) mod_ssl/2.2.6 xΒ PHP/5.2.4 Server Built: Sep 26 2007 11:18:50 Current Time: Tuesday, 26-Jan-2010 16:05:14 EST Restart Time: Monday, 25-Jan-2010 13:09:57 EST Parent Server Generation: 9 Server uptime: 1 day 2 hours 55 minutes 17 seconds Total accesses: 940921 - Total Traffic: 25.2 GB CPU Usage: u2432.93 s350.65 cu0 cs0 - 2.87% CPU load 9.71 requests/sec - 272.3 kB/second - 28.0 kB/request 229 requests currently being processed, 41 idle workers CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCC_C_CCCCCCCCC__CC_CCC_C_CCCCCCC_CCCCC_WC_CCCWC CCCCCCCCW_CCCC_CCWC_CCCCC_CCC__CC_CC_CC_C_C___C_CC___CCCC_C___CC C_C___C____W__.................................................. ................................................................ ................................................................ ................................................................ Scoreboard Key: |
Apache Server Status for Server_NameServer Version: Apache/2.2.6 (Unix) mod_ssl/2.2.6 `] P[ È[ n[
Server Built: Sep 26 2007 11:18:50 Current Time: Tuesday, 26-Jan-2010 16:00:20 EST Restart Time: Tuesday, 19-Jan-2010 20:35:14 EST Parent Server Generation: 1 Server uptime: 6 days 19 hours 25 minutes 5 seconds Total accesses: 4571364 - Total Traffic: 128.2 GB CPU Usage: u1064.76 s103.29 cu0 cs0 - .199% CPU load 7.77 requests/sec - 228.6 kB/second - 29.4 kB/request 4 requests currently being processed, 44 idle workers _______..__W__._..__.__......W___.._______._.___.__.._..._._.W__ .W..._.._.....___....._...._.................................................................................................... ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ Scoreboard Key: |
Apache Server Status for Server_NameServer Version: Apache/2.2.6 (Unix) mod_ssl/2.2.6 ¸ÞB PHP/5.2.4 Server Built: Sep 26 2007 11:18:50 Current Time: Tuesday, 26-Jan-2010 14:10:38 EST Restart Time: Monday, 25-Jan-2010 13:10:24 EST Parent Server Generation: 9 Server uptime: 1 day 1 hour 13 seconds Total accesses: 833777 - Total Traffic: 22.7 GB CPU Usage: u2439.42 s337.69 cu0 cs0 - 3.09% CPU load 9.26 requests/sec - 264.1 kB/second - 28.5 kB/request 204 requests currently being processed, 45 idle workers CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC_CCCW_CCC_C_CC_CCCCCCC_CC CCCC_C_CCC_CCCCCC__CCCCCC_CC_CCCCCC_CCCCCC_CCCCCC_C_CCC_CCCCCCCC C_CCCC_C___CCC__WCC___CCCCW_CCC_CCC_W__CCC_____C_W_C_____....... ................................................................ ................................................................ ................................................................ ................................................................ Scoreboard Key: |
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