檢視 BB站台連線異常的原始碼

Q: BB站台連線異常是的錯誤訊息ORA-00018: maximum number of sessions exceeded

A: 超出session最大值~可試試再增加oracle的process和session參數

原廠建議調校數據如下，請查照

I. Database changes
-------------------------------------
\*max number of semaphore identifiers:
set semsys:seminfo_semmni=50
\*
*max number of semaphores per identifier:
*semmsl=largest number of processes of all instances < 512
set semsys:seminfo_semmsl=500
*
*max number of semaphores: semmns=semmni*semmsl
*semmns>=sum of all processes of all instances
*semmns>=semmni*semmsl
set semsys:seminfo_semmns=25000
set semsys:seminfo_semopm=100
set semsys:seminfo_semvmx=32767


II. Appserver changes
*********************
bbconfig.unix.httpd.maxclients= 200
bbconfig.appserver.maxthreads= 200
bbconfig.database.bb_60.db.maxpoolsize= 200
bbconfig.database.bb_60.db.minpoolsize= 50
bbconfig.max.heapsize.tomcat= 1024m
bbconfig.min.heapsize.tomcat= 512m
bbconfig.unix.modperl.keepalive= Off
bbconfig.unix.modperl.maxclients= 20
bbconfig.unix.modperl.maxspareservers= 10
bbconfig.unix.modperl.minspareservers= 3 (or 5)
bbconfig.unix.modperl.startservers= 10
bbconfig.unix.httpd.maxspareservers= 50
bbconfig.unix.httpd.minspareservers= 10
bbconfig.unix.httpd.startservers= 50

另外原廠也建議，如果之後使用上遇到java.long.OutOfMemory error，可以把bbconfig.max.heapsize.tomcat= 1024m 改成1280m 或是1536m