`
liufeng_king
  • 浏览: 35323 次
  • 性别: Icon_minigender_1
  • 来自: 天津
社区版块
存档分类
最新评论

oracle no appropriate service handler found ORA-12519

阅读更多

今天下午,开发人员突然说不能连接数据库了,提示相关的错误


OERR: ORA-12519 TNS:no appropriate service handler found

客户端连接间歇性失败,报错ORA-12519


Cause: the listener could not find any available service handlers that are
       appropriate for the client connection.

Action: run "lsnrctl services" to ensure that the instance(s) have registered
        with the listener, and are accepting connections. 检查lsnrctl service ,instance已经注册,
状态显示ready时,可以连接。

When the listener believes the current number of connections has reached maximum load,
it may set the state of the service handler for an instance to "blocked" and begin refusing
incoming client connections with either of the following errors: ora-12519 or ora-12516

采用服务动态注册的方式,由PMON 通过SERVICE_UPDATE 来得到目前连接情况,但SERVICE_UPDATE 有时间间隔,
所以,listener显示的连接数和当前实际的连接数可能不同。


查询解决方法:

查看一下数据库现有的进程数,是否已经达到参数processes的大小。

1.select count(*) from v$process;                         取得数据库目前的进程数。
2.select value from v$parameter where name = 'processes'; 取得进程数的上限。
3.如已达到上限,修改initSID.ora中的processes的大小。
4.重新启动数据库到nomount状态下,执行create spfile from pfile; 并startup open。


查询数据库自启动以来最大的并发数量

select * from v$license

------ end -------


本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/wyzxg/archive/2008/03/06/2154274.aspx

 

ORA-12519: TNS:no appropriate service handler found 的解决

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.

SQL> select count(*) from v$process;--当前连接数
     COUNT(*)
     63
SQL> select value from v$parameter where name = 'processes' --数据库允许的最大连接数
VALUE
500

修改最大连接数:
SQL> alter system set processes = 2000 scope = spfile;

重启数据库:
SQL> shutdown immediate;
SQL> 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;

--快速删除不活动进程
set heading off
spool on
select p.SPID from v$session s,v$process p where s.paddr= p.addr and s.machine='woogle';
spool off
set serveroutput on ;
declare
v_sid number;
v_serial number;
v_sql varchar2(200) ;
CURSOR cur_session is
   select sid, serial# from v$session where machine='woogle';
begin
open cur_session ;
fetch cur_session into v_sid , v_serial ;
while cur_session%found
loop
dbms_output.put_line(v_sid||' killed!') ;
v_sql:= 'alter system kill session '||''''||v_sid||','||v_serial||'''';
execute immediate v_sql ;
fetch cur_session into v_sid , v_serial ;
end loop ;
close cur_session ;
end ;
/

Linux 下快速删除不活动进程
#!/bin/bash

tmpfile=/tmp/tmp.$$

sqlplus ' / as sysdba' << EOF

set heading off
spool on
spool $tmpfile
select p.SPID from v$session s,v$process p where s.paddr= p.addr and s.STATUS='SNIPED';
spool off
set serveroutput on ;
declare
v_sid number;
v_serial number;
v_sql varchar2(200) ;
CURSOR cur_session is
   select sid, serial# from v$session where STATUS='SNIPED';
begin
open cur_session ;
fetch cur_session into v_sid , v_serial ;
while cur_session%found
loop
dbms_output.put_line(v_sid||' killed!') ;
v_sql:= 'alter system kill session '||''''||v_sid||','||v_serial||'''';
execute immediate v_sql ;
fetch cur_session into v_sid , v_serial ;
end loop ;
close cur_session ;
end ;
/

分享到:
评论

相关推荐

    ora-12519错误解决方案

    具体来说,“ORA-12519, TNS:no appropriate service handler found”意味着Oracle Net无法找到合适的处理程序来响应客户端的服务请求。为了解决这个问题,我们需要从多个角度进行排查与解决。 #### 二、Oracle参数...

    Oracle sqldeveloper without jdk (win+linux)

    - Bug # 4918539: ORA-ORA-06502 or ORA-01460 may occurs if a procedure is executed through the Run PL/SQL dialog box and a string with multibyte characters is assigned to one of the parameters. ...

    oracle 10g-admin1 考试试题

    ### Oracle 10g Administration I (1Z0-042) Exam Knowledge Points #### 1. Determining the Size of the Undo Tablespace When deciding on the size of the undo tablespace in your Oracle database, three ...

    Prentice.Quality.Of.Service.For.Internet.Multimedia.eBook-LiB.chm

    The solution begins with service-differentiated networks capable of providing appropriate grades of service to each application. This book takes the next step, showing how continuous media ...

    Senfore_DragDrop_v4.1

    The library has been tested on NT4 service pack 5 and Windows 2000. Windows 95, 98, ME and XP should be supported, but has not been tested. Linux and Kylix are not supported. There are *NO* plans to ...

    Approximation-of-large-scale-dynamical-system.djvu

    The strength of the latter on the other hand, is that it can be implemented iteratively and is thus appropriate for application to high complexity systems. An effort to combine the best attributes of...

    Oracle Essbase

    appropriate fail-safe, backup, redundancy, and other measures to ensure its safe use. Oracle Corporation and its affiliates disclaim any liability for any damages caused by use of this software or ...

    SU-FTP-Server-Windows-v15.1.2

    After applying this hotfix, the issues outlined in the description should no longer occur. ------------------------- TO UNINSTALL: 1) Shut down all running Serv-U processes. i) Right-click the tray...

    Expert.Oracle.Indexing.and.Access.Paths.2nd.epub

    At the heart of any good-performing database lies a sound indexing strategy that makes appropriate use of indexing, and especially of the vendor-specific indexing features on offer. Few databases ...

    acpi控制笔记本风扇转速

    upsearch until a device scope is found before executing _ADR. This allows PCI_Config operation regions to be declared locally within control methods underneath PCI device objects. Fixed a problem ...

    (中文版)10gR2_openSUSE102_introduction.doc

    4. Adjust kernel parameters and start the Oracle service using `/etc/init.d/oracle start`. 5. Download and extract the Oracle 10gR2 database. 6. Edit `/database/install/oraparam.ini`, adding "SuSE-10...

    NIST SP800-152.pdf

    management functions, and to assist FCKMS procurers, administrators, service-providing organizations, and service-using organizations to select appropriate CKMSs or CKMS services. This Profile ...

    Appropriate-building-technology:图书馆、房间、流程、链接、杂志

    "Appropriate-building-技术"是一个项目或资源集合,聚焦于可持续和适应性的建筑设计与实践。这个主题涵盖了如何在建筑行业中采用适合当地环境、文化和经济条件的技术。图书馆可能包含各种资料,如研究报告、案例...

    Direct Oracle Access 413 Delphi XE6 Version

    In case the software product was ordered by company Purchase Order, the appropriate invoice sent afterwards was paid within 30 days after invoice date. In case the software product was ordered on-line...

    Expert one-on-one J2EE Design and Development(part2)

    In this book I aim to help professional J2EE developers and architects make the appropriate choices to deliver high-quality solutions on time and within budget. I'll focus on those features of J2EE ...

    Diskeeper 2008 v12.0.759.0

    No more need to run a manual and resource-intensive process. Frag Shield抯 MFT fragmentation prevention technology is now fully automatic and re-written to operate invisibly using InvisiTasking...

    TimesTen In-Memory Database Installation Guide

    - The use of this software in inherently dangerous applications is not recommended, and users are responsible for ensuring its safe use through appropriate fail-safe, backup, redundancy, and other ...

Global site tag (gtag.js) - Google Analytics