标题: ORA-00020:maximum number of processes (500) exceeded 错误解决方法 [打印本页] 作者: jiawang 时间: 2019-3-8 16:06 标题: ORA-00020:maximum number of processes (500) exceeded 错误解决方法 [Oracle@database~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Tue Jul 21 10:38:28 2018
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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
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