问题描述:在正式生产环境中,有的库建的process和session连接数目设置的较小,导致后期满了无法连接.因为正式库无法进行停库修改,只能释放连接,做个测试模拟 1. 修改现有最大会话与进程连接数 SQL> alter system set processes = 35 scope = spfile; System altered. SQL> alter system set sessions = 40 scope = spfile; System altered. 2.重启生效,加大连接…

转自:http://blog.51cto.com/lee90/1788124 今天java开发在连接线上的oracle大量导数据,一会提示连接不上数据库了.我本地用sqldeveloper也连接不上. 登录到服务器,重启oracle,本地还是不能连接. 在xshell里面登录oracle # su - oracle # sqlplus / as sysdba    连接Oracle 提示要输入用户名和密码. 并报错ORA-00020: maximumnumber of processes (30…

SQL> select count(*) from v$session; COUNT(*)---------- 98 SQL> select count(*) from v$process; COUNT(*)---------- 99 more odsprod.log 目前系统正常 检查结果如下: 系统的进程树最大150. 当前系统连接数目如下:SQL> select count(*) from v$session; COUNT(*)---------- 98 SQL> selec…

异常的含义 超过最大的进程数 我们使用下面的语句可以查看与进程(process)的相关参数: 如上所示,这里的最大进程数是150. 问题可能存在的原因 1.应用程序在使用数据库连接池时,使用完成后没有及时关闭,或者不正常的关闭导致数据库的Process处于inactive状态 2.连接数量确实比较多,进程数量150不满足需求 解决办法 1.加大进程数 SQL>alter system set processes=500 scope = spfile;(spfile是一个文本文件,但oracle的…

[oracle@db04-1 ~]$ sqlplus -prelim / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on 星期四 8月 31 10:00:51 2017 Copyright (c) 1982, 2011, Oracle. All rights reserved. SQL> oradebug setmypid已处理的语句SQL> oradebug unlimit已处理的语句SQL> oradebug dump sys…

网上很多同行应该都遇到过这个问题,百度一搜 千篇一律的处理办法,就是加大进程数. 但是我这边情况不一样,因为我的Oracle 11g是早上刚装的,跟本没人用,我用PLSQL链接照样说不能链接. 我就在想,到底哪里出了问题,很郁闷. 最后我就想,是不是跟服务启动的数量有关系?如下图: 结果就是服务一停掉,马上就能链接了.坑爹啊!!!!!!…

[root@localhost ~]# vi /etc/security/limits.conf # /etc/security/limits.conf # #Each line describes a limit for a user in the form: # #<domain> <type> <item> <value> # #Where: #<domain> can be: # - a user name # - a group nam…

ORA-00019: maximum number of session licenses exceededORA-00019: 超出最大会话许可数 Cause:       All licenses are in use.      所有许可都在使用中. Action:       Increase the value of the LICENSE MAX SESSIONS initialization parameter.      增加最大会话许可数的初始化参数值.…

ORA-00018: maximum number of sessions exceededORA-00018: 超出最大会话数 Cause:       All session state objects are in use.      所有会话状态对象都在使用中. Action:       Increase the value of the SESSIONS initialization parameter.      增加会话初始化参数的值. Oracle 默认 Processes 的…

我们大体都知道ArcSDE的连接数有 48 的限制,很多人也知道这个参数可以修改,并且每种操作系统能支持的最大连接数是不同的. 如果应用报错:超出系统最大连接数 该如何处理? 两种解决办法: 第一,首先确定是否一定需要增加这个最大连接数. 在我们平常的应用中, 特别是给多用户的实施过程中. 有时会出现图形库莫名的连接不上,如果用ARCMAP或ARCCATALOG连接的时候还会提示错误信息 “Failed to connect to database. Maximum number of cone…

Exceeded maximum number of retries. Exceeded max scheduling attempts 3 for instance…

Exceeded maximum number of retries. Exceeded max scheduling attempts 3 for instance 7d90eb80-29e2-4238-b658-ade407ff9456. Last exception: [u'Traceback (most recent call last):\n', u' File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py"…

POI操作Excel中,导出的数据不是很大时,则不会有问题,而数据很多或者比较多时, 就会报以下的错误,是由于cell styles太多create造成,故一般可以把cellstyle设置放到循环外面 报错如下: Caused by: java.lang.IllegalStateException: The maximum number of cell styles was exceeded. You can define up to 4000 styles in a .xls workbook…

最近几天什么都没动无法创建云主机了,经过一番查询 1.查日志 /data/jumpserver/logs 得到错误 HTTP exception thrown: Maximum number of ports exceeded 2.百度查了下,说是ip满了 于是修改/etc/neutron/neutron.conf vim /etc/neutron/neutron.conf # quota_subnet = 10 quota_subnet = 30 //修改subnet数量 # quota_po…

Error: 实例 "ddd" 执行所请求操作失败,实例处于错误状态.: 请稍后再试 [错误: Exceeded maximum number of retries. Exhausted all hosts available for retrying build failures for instance 6f60bc06-fcb6-4758-a46f-22120ca35a71.].…

用一个普通的域帐号玩私有云的时候,遇到了如下的报错. "Your computer could not be joined to the domain. You have exceeded the maximum number of computer accounts you are allowed to create in this domain. Contact your system administrator to have this limit reset or increased.&…

使用POI导出xls文件,由于数据过多,导致导出xls报错如下: The maximum number of cell styles was exceeded. You can define up to 4000 styles in a .xls workbook 原因: 代码中创建 HSSFCellStyle cellStyle = hssfWorkbook.createCellStyle(); 次数过多,导致报错. 解决方法: 把创建HSSFCellStyle对象放在循环之外,或者放在全局,…

错误: 实例 "ahwater-linux-core" 执行所请求操作失败,实例处于错误状态.: 请稍后再试 [错误: Exceeded maximum number of retries. Exceeded max scheduling attempts 3 for instance 7c1609c9-9d0f-4836-85b3-cefd45f942a7. Last exception: [u'Traceback (most recent call last):\n', u' Fi…

How do I increase the maximum number of open files under CentOS Linux? How do I open more file descriptors under Linux? The ulimit command provides control over the resources available to the shell and/or to processes started by it, on systems that a…

Jmeter运行的时候出现的重定向超过n次的问题: When trying to test a Silverlight application, I get the below error. Has anybody experienced this before and advise me? Many thanks, Koen Thread Name: Thread Group 1-1Sample Start: 2009-05-11 17:48:41 BSTLoad time: 55Latenc…

ORA-01925:maximum of 80 enabled roles exceeded max_enabled_roles 9i的參数,10g及以后都不用了. 指定用户session的最大enabled roles数. MAX_ENABLED_ROLES specifies the maximum number of database roles that users can enable, including roles contained within other roles. The…

真机调试免费App ID出现的问题The maximum number of apps for free development profiles has been reached.免费应用程序调试最大限度苹果免费App ID只能运行2个应用程序,当调试第三个的时候就会报这个错误,必须把之前的应用程序删除,才能调试新的 解决办法:1.连接iPhone 打开Xcode->Window->Devices     2.接着出现这个界面   3.删除其中一个,不是本次运行的应用程序 4.接着会弹框  …

Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexity must be in O(n). Example 1: Input: [3, 2, 1] Output: 1 Explanation: The third maximum is 1. Examp…

Given two arrays of length m and n with digits 0-9 representing two numbers. Create the maximum number of length k <= m + n from digits of the two. The relative order of the digits from the same array must be preserved. Return an array of the k digit…

Problem: Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexity must be in O(n). Example 1: Input: [3, 2, 1] Output: 1 Explanation: The third maximum is…

Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2102   Accepted: 975 Description A tournament can be represented by a complete graph in which each vertex denotes a player and a directed edge is from vertex x to vertex y if player x beats…

Given two arrays of length m and n with digits 0-9 representing two numbers. Create the maximum number of length k <= m + n from digits of the two. The relative order of the digits from the same array must be preserved. Return an array of the k digit…

1.INFO: Maximum number of threads (200) created for connector with address null and port 8091 说明:最大线程数错误 解决方案: 使用线程池,用较少的线程处理较多的访问,可以提高tomcat处理请求的能力.使用方式: 首先.打开/conf/server.xml,增加 <Executor name="tomcatThreadPool" namePrefix="catalina-ex…

The maximum number of apps for free development profiles has been reached. 源引:http://www.jianshu.com/p/99c441070b22…

The Maximum Number of Strong Kings   Description A tournament can be represented by a complete graph in which each vertex denotes a player and a directed edge is from vertex x to vertex y if player x beats player y. For a player x in a tournament T,…