SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus

[oracle@jtwy02 ~]$ sqlplus '/as sysdba'

SQL*Plus: Release 11.2.0.4.0 Production on Sat Oct 13 14:14:13 2018

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

ERROR:

ORA-00020: maximum number of processes (150) exceeded

解决方法:[root@oracle 11g ~]$ps -ef|grep "oracleXXXX (LOCAL=NO)"|grep -v grep|awk '{print $2}'|xargs kill -9

另外一种方法:

  lsnrctl stop 关掉监听器,等待一会 在连接 sqlplus '/as sysdba '

  然后连接数会降下来,在改连接数

  然后再启动监听器

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