xifenfei 发表于 2015-8-14 16:55:11

ORA-12516: TNS:listener could not find ………………

$ sqlplus system/oracle@t1/orcl

SQL*Plus: Release 11.2.0.1.0 Production on Fri Aug 14 16:14:17 2015

Copyright (c) 1982, 2009, Oracle.All rights reserved.

ERROR:
ORA-12516: TNS:listener could not find available handler with matching protocol stack


Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied


$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Fri Aug 14 16:15:14 2015

Copyright (c) 1982, 2009, Oracle.All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>
SQL>
SQL>
SQL>
SQL> show parameter process;

NAME                                 TYPE      VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes                      integer   0
cell_offload_processing            boolean   TRUE
db_writer_processes                  integer   1
gcs_server_processes               integer   0
global_txn_processes               integer   1
job_queue_processes                  integer   1000
log_archive_max_processes            integer   4
processes                            integer   150
SQL> select count(*) from v$process;

COUNT(*)
----------
       149

解决方法
alter system set processes=500 scope=spfile;
shutdown immediate
startup

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