-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/04/2012 16:20, Christopher Schultz wrote: > On 4/12/12 4:37 AM, Mark Thomas wrote:
>> In short, disabling mod_jk keep-alive frequently has no >> noticeable performance impact (some customers of mine reported a >> performance improvement!) > > That sounds suspicious to me. Not really. If cpong/cping isn't set up correctly and you are taking Tomcat hosts up and down regularly (or the hosts are failing to respond for other reasons) then without keep-alive disabled some requests are going to get delayed by a timeout before httpd retries another Tomcat instance. Those timeouts could impact the average response time. A correctly configured mod_jk setup should perform about the same with or without keep-alive. The point is that without keep-alive the config is usually far easier to get right. Mark -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJPhwSrAAoJEBDAHFovYFnndpgP/jhHXv5H8SMl+uE+3Wppp/2Z TQKG4HtqAtdcXi/yyYYro0t3BzknekUDVEX39qIFdDrBK1ogwZc6/bAZhrXGo+wx dCwPdm1m34RpXGF5mWBYqVHdx/RvmgrKMM/Wt/P58nGL1NU7tOvbupPbtZ1CNig7 t/FCzMSxl7V0DzNHgtxlfOfWBNP8te2Eu9LsBxKNyZbUOEf6/yOoXZlGozIPdKKB 7/23FCnwHtAE2vLh0kvpTNlv0f6hj2Rgx3s/XX+Snc7LLbqRyzWOyvkEn0PrfV+5 Mgl4F+pcShd35CeKRD4+g0VdteJULdeT0LO816hRKDO7e/UNr/CVTh5xsXHVjwdK 59lVtACoNEysy/Tucm28ZEfIIosjRKvseEOhRhHZKWiAOXoL7++XYUkdixaiZ5ZX c40FQ225H38emQb10wTEuhFCrqAZWFDlR+6W0ySL391lFXHuiPEGgekDRzNAm6Uh Gy3uczA6q4NldnN2SvCr/8mx+iawkV+kLgsdIAluIKg/K0/yiT7+S6QUpAMgeyc5 z2RtLdfpMeqGW8mvf3QDa+z9ojMy3nUK7ukgB3ENBgOcpuJNSW1zYjXmRmMGJALr FZ50aFhn+FLVwMd6OIggo/4faQ1hr4SrZTMlmnb6BNHMi0Oy3HK7yqV5g0pTKq8h 11WtLxb707rXbBd3kpAU =Qnhw -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
