ORA-12519: TNS:no appropriate service handler found 解决
2013-07-10 11:32
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向数据库中导数据,一直报错。如下:
SQLExcepeion:listener refused the connection with the following error
ORA-121519,TNS:no appropriate service handler found
The connection deseriptor used by the client was:
192.168.1.221:1521:gadb
翻译后:
SQLExcepeion:监听器拒绝连接 与以下错误
ora - 121519,TNS:没有适当的服务处理程序发现
连接deseriptor客户机使用的是:
192.168.1.221:1521:gadb
有时候连得上数据库,有时候又连不上.
可能是数据库上当前的连接数目已经超过了它能够处理的最大值.
解决:
select count(*) from v$process --当前的连接数
select value from v$parameter where name = 'processes' --数据库允许的最大连接数
修改最大连接数:
alter system set processes = 300 scope = spfile;
重启数据库:
shutdown immediate;
startup;
--查看当前有哪些用户正在使用数据
SELECT osuser, a.username,cpu_time/executions/1000000||'s', sql_fulltext,machine
from v$session a, v$sqlarea b
where a.sql_address =b.address order by cpu_time/executions desc;
SQLExcepeion:listener refused the connection with the following error
ORA-121519,TNS:no appropriate service handler found
The connection deseriptor used by the client was:
192.168.1.221:1521:gadb
翻译后:
SQLExcepeion:监听器拒绝连接 与以下错误
ora - 121519,TNS:没有适当的服务处理程序发现
连接deseriptor客户机使用的是:
192.168.1.221:1521:gadb
有时候连得上数据库,有时候又连不上.
可能是数据库上当前的连接数目已经超过了它能够处理的最大值.
解决:
select count(*) from v$process --当前的连接数
select value from v$parameter where name = 'processes' --数据库允许的最大连接数
修改最大连接数:
alter system set processes = 300 scope = spfile;
重启数据库:
shutdown immediate;
startup;
--查看当前有哪些用户正在使用数据
SELECT osuser, a.username,cpu_time/executions/1000000||'s', sql_fulltext,machine
from v$session a, v$sqlarea b
where a.sql_address =b.address order by cpu_time/executions desc;
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