Tham khảo tài liệu 'oracle applications dba field guide phần 6', công nghệ thông tin, cơ sở dữ liệu phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | CHAPTER 4 PERFORMANCE TUNING 117 ExpiresByType application x-javascript access plus 1 year ExpiresByType text javascript access plus 1 year Directory enable caching for OA_MEDIA Directory substitute_path_to_OA_MEDIA ExpiresActive On ExpiresByType image gif access plus 1 month ExpiresByType image jpeg access plus 1 month Directory JServ Tuning JServ processes are children processes of the httpd Apache process that run on the server. As with the Apache Server you should set JServ logging to its lowest level in order to minimize the performance degradation that is caused by logging. JServ logging is set in the and files. To reduce logging ensure that the JServ configuration files have the following parameter settings ApJServLogLevel warn Log false false false true Debug_switch OFF The FND View Object Max Fetch Size profile can be set to limit the number of rows an executed query returns to a user in an HTML application. You should set this profile to no greater than 200. If this number is increased JServ memory can be exhausted. If the value of 200 is not great enough you should set the profile at the application level for the application that requires the ability to return more rows. This will reduce the overall impact of the parameter. If the session timeout set by the parameter in the file is greater than 30 minutes session memory usage may result in performance degradation. Be certain to set the session timeout to the lowest acceptable level for your user community. 118 CHAPTER 4 PERFORMANCE TUNING This brings us to an integral tuning step for JServ tuning evaluating the heap memory settings for the JServs in the file. Additional details on monitoring the JVM heap size with the AM Pool Monitor are outlined in Chapter 3 of this guide. Improperly tuned memory settings may result in .
