Home Database Mysql Tutorial ORA-00020:maximum number of processes (500) exceeded 错误解决方法

ORA-00020:maximum number of processes (500) exceeded 错误解决方法

Jun 07, 2016 pm 03:21 PM

今天刚以上收到了系统预警短信,是OA的数据库系统,登录到服务器上,发现链接数据库报错。ORA-00020: maximum number of process

今天刚以上收到了系统预警短信,是OA的数据库系统,登录到服务器上,发现链接数据库报错。

[Oracle@oadb ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Tue Jul 21 10:38:28 2015

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

ERROR:
ORA-00020: maximum number of processes (500) exceeded

根据报错信息是由于processes进程数达到了最大值。

 此参数是静态参数,修改后需要启动数据库。

SQL> set linesize 1000
SQL> show parameter processes

NAME        TYPE      VALUE
 ------------------------------------ ---------------------- ------------------------------
 aq_tm_processes        integer      1
 db_writer_processes      integer      3
 gcs_server_processes      integer      0
 global_txn_processes      integer      1
 job_queue_processes      integer      1000
 log_archive_max_processes      integer      4
 processes        integer      500

系统生产系统,不能重启数据库,好在系统过了一会儿恢复正常了。
 此系统是一套OA系统,,由于早晨过多人处理办公事务,过多的用户访问造成的。
 解决方案:
 在系统空闲时,修改系统参数,重启数据库。
SQL> alter system set processes=1000 scope=spfile;
 SQL>SHUTDOWN IMMEDIATE;
 SQL>STARTUP;
 SQL> show parameter processes

NAME        TYPE      VALUE
 ------------------------------------ ---------------------- ------------------------------
 aq_tm_processes        integer      1
 db_writer_processes      integer      3
 gcs_server_processes      integer      0
 global_txn_processes      integer      1
 job_queue_processes      integer      1000
 log_archive_max_processes      integer      4
 processes        integer      1000

本文永久更新链接地址

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