发现有的时候，EBS会报连接数不足的问题。所以尝试着提高了processes和sessions，EBS安装完之后，数据库init参数processes默认为200,sessions默认为400.这里我把DB的processes和sessions提高到了500和1000。

processes                       = 500    # Max. no. of users x 2

sessions                        = 1000     # 2 X processes

修改完之后，重启DB，参数就会生效。

addbctl.sh stop  

addbctl.sh start

查看参数设置

show parameter processes

show parameter sessions

文章 里，有提到Oracle提供一个init parameter参考的设置。

关于Processes和sessions parameters,init.ora有相关描述

#########

#

# Processes and sessions parameters

#

# A database process can be associated with one or more database

# sessions. For all technology stack components other than Oracle

# Forms, there is a one-to-one mapping between sessions and processes.

#

# For Forms processes, there will be one database session per

# open form, with a minimum of two sessions per Forms user (one

# for the navigator form, and one for the active form).

#

# The sessions parameter should be set to twice the value of the

# processes parameter.

#

#########

另外如何查询当下数据的连接数和最大连接数

--当前的连接数 select count(*) from v$process; --设置的最大连接数（默认值为200） select value from v$parameter where name = 'processes'; ------------------------------------------------ --查看当前的session使用情况 SELECT Count(*) FROM v$session; 或 SELECT   username, machine, program, status, COUNT (machine) AS FROM v$session GROUP BY username, machine, program, status ORDER BY machine; --查看系统最大session数 select value from v$parameter where name = 'sessions';

转载请注明出处：

======EOF======