-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 To whom it mat concern,
On 7/19/13 1:37 PM, Tomcat Random wrote: > We currently are setting a site that receives fairly heavy traffic > (5000 simultaneous users). We have two physical servers. > > As a general idea, is there performance to be gained by running > multiple instances of Tomcat 7.0? For example, two instances on one > physical server and two instances on the other physical server? > Assume all are running the same webapp. You are unlikely to see a performance benefit by running two (or more) Tomcat instances on the same server. There are other benefits, though. For instance, you can configure Tomcat for load-balancing and then use a fronting server like httpd to direct traffic to a subset of your instances in order to, for instance, upgrade each instance individually with no (perceived) downtime. You can of course do this with separate physical servers, too. Separate Tomcat instances means that you can run separate Tomcat versions and separate JVM versions in parallel. We find this very valuable at $WORK and so we run each webapp in a separate JVM even when multiple webapps are deployed on a single physical server. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJR7XVKAAoJEBzwKT+lPKRYaWgP/2ClDW8TF8bOCQPgisyDZ+JB tufmVcz5TZnmenvT2Tk9W8Qf9a/f37Ttv3u4h4OPmoUZLc4XmsPsLjQcRSNN3p76 xd401Ngj7WhuVxL+KescDxO0HApG/TDTNbcGeMgLXpYorAaqlVQZW3ADoQ0+vJGY KujBdlGYqmgoQETtd2ewqzn5OsLWiuNsgwnm9CiI1P658Ljaik/0Upr18rhP4uno eSkAH/y6Ojxd0pqQIoyrKPoW7xbcX476VIBc7VabSSQwV2MmEBm02SaJ4eq+Ms0/ nCosx8nt6DDwzeWEI4dzC3eGpJZ9bZoclpfjQyLEvHkODkTmds54YRvuzzlwlKus 59s3lckIL+WOmPTrCv5Jam6ReyuB/aCWlRNVOEBiiBiB40SN+yNwm878m4ALWmfK sr0zwMofJjFc/j3q3XCZzknvnga5MdBVaNYddOyWYcwILCK4ODrA6SxIkJ0X2Pah 0/MMQvkNYVN1HYm7z9IAKlN/SMoLiz+hmruCv/xnYpZKO0dxiX34fP++nnJFdpa3 gfu1U+7HJFWeY3xtBePDuoyVYhxK4tP3WKbG+gRr3d56k7mb8XkHqSguhvl5VlvN Y4h+VW1UOfem7swv8Y63ey9AykZamY/t+9dI9N88+hTDQCO4+UB/uEQn5ks5qsx6 qJvHUTt6zYIVhus6DiWj =F6ZA -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
