We are currently using -
Tomcat - 5.5.25 JDK 1.5 IIS 6 Windows XP 64bit and 32bit machines We are trying to upgrade to the latest connector. While going through the worker properties variables to set we have few questions regarding the following - 1) connection_pool_size - >> Usually this is the same as the number of threads per web server process. (cut-paste from the description for connection_pool_size) I am not familiar with IIS - so how do you determine the above? >> You should measure how many connections you need during peak activity without performance problems, and then add some percentage depending on your growth rate. How do you determine what is a good percentage? Also does this property have any correlation with the attribute MaxThreads in the <Connector> tag of server.xml? How do you determine what value should you put for MaxThreads? 2) connection_pool_timeout - The server.xml - the default value if not specified explicitly is 60000(60 secs). I see in our server.xml AJP connector tag - its not specified - which means I do need to specify this property connection_pool_timeout in our worker.properties as 60? The documentation says the default for connection_pool_timeout is 0, shouldn't it be 60 if this has to be in synch with server.xml? 3) The worker.loadbalancer.method property - currently not set - but we are thinking of doing as B instead of default R. What do you use in general? Is there a disadvantage to switching from Request to Busyness? 4) Question on server.xml - maxSpareThreads maxThreads minSpareThreads What are the criteria to select appropriate values? For production servers - how do you determine the values to set? Is there a correlation between the values for above(maxSpareThreads, maxThreads, minSpareThreads) - for example - does the maxSpareThreads have to be certain % of maxThreads? Thank you for reading the question. Regard, Rumpa Giri
