ORA-27301: OS failure message: Not enough space
OS:HP-UNIX
ORA-27300: OS system dependent operation:fork failed with status: 12
ORA-27301: OS failure message: Not enough space
ORA-27302: failure occurred at: skgpspawn3
swapinfo -mt
发现swap已经100percent了。sqlplus无法连接到数据库中。应用这边的人找过来了,说他们应用无法连上数据库了。
查看系统日志:
more /var/adm/syslog/syslog.log
发现系统频繁出现无法分配内存的错误
应用那边说今天早上他们把WebLogic中jdbc调大到了200,按说应该是没有问题,预计是jdbc没有释放,叫他们把连接数调整到原样,swap恢复到88percent。数据库恢复正常
看mos原文:
| Troubleshooting Guide ORA-3136: WARNING Inbound Connection Timed Out (Doc ID 465043.1) |
ToBottom |
![]() |
|
In this Document
APPLIES TO:Oracle Net Services – Version 10.2.0.5 to 11.2.0.4 [Release 10.2 to 11.2] PURPOSETroubleshooting guide for "ORA-3136 WARNING inbound connection timed out" seen in the alert log. TROUBLESHOOTING STEPSThe "WARNING: inbound connection timed out (ORA-3136)" in the alert log indicates that the client was not able to complete the authentication process You might also see the errors ORA-12170 or TNS-12535 in the sqlnet.log that is generated on the server. From 10.2.0.1 onwards the default setting for the parameter SQLNET.INBOUND_CONNECT_TIMEOUT is 60 seconds. If the client is not able to authenticate within 60 seconds, the warning would appear in the alert log and the client connection will be terminated.
Note: This timeout restriction was introduced to combat Denial of Service (DoS) attack whereby malicious clients attempt to flood database servers with connect requests that consumes
resources. The following are the most likely reasons for this error -
To understand what is causing this issue, following checks can be done The default value of 60 seconds is good enough in most conditions for the database server to authenticate a client connection. If it is taking longer, then it's worth checking 1. Check whether local connection on the database server is successful & quick. It is often necessary to increase the values for INBOUND CONNECT TIMEOUT at both the listener and the database in order to resolve this issue. It is usually advisable to set the database (sqlnet.ora) value slightly higher than the listener (listener.ora). To set these parameters to use values higher than the default of 60 seconds, follow these instructions and restart the listener. There is no need to restart Oracle: Edit the server side sqlnet.ora file and add this parameter: SQLNET.INBOUND_CONNECT_TIMEOUT=<n> Where <n> is the value in seconds. E.g.:
SQLNET.INBOUND_CONNECT_TIMEOUT = 120
Edit the listener.ora file and add this parameter: INBOUND_CONNECT_TIMEOUT_<listenername> = <n> Again, where <n> is the timeout value in seconds. For example if the listener name is LISTENER then use:
INBOUND_CONNECT_TIMEOUT_LISTENER = 110
From Oracle version 10.2.0.1 onwards the default value of INBOUND_CONNECT_TIMEOUT_<listenername> is 60 seconds. For previous releases it is zero or OFF by default.
How to check whether inbound timeout is active for the listener and database server: For example, INBOUND_CONNECT_TIMEOUT_<listener_name> =110 You can check whether the parameter is active or not by simply doing telnet to the listener port.
$ telnet 123.23.23.23 1521
The telnet session should disconnect after 110 seconds which indicates that the inbound connection timeout for the listener is active. Alternatively, check at the LSNRCTL prompt using: LSNRCTL>set current_listener <listener_name> To check whether database server SQLNET.INBOUND_CONNECT_TIMEOUT is active:
SQLNET.INBOUND_CONNECT_TIMEOUT=120
a. For Dedicated server setup, enable the support level sqlnet server tracing will show the timeout value as below:
niotns: Enabling CTO, value=120000 (milliseconds) <== 120 seconds
niotns: Not enabling dead connection detection. niotns: listener bequeathed shadow coming to life… b. For shared Server setup,
$ telnet 123.23.23.23 51658
The telnet session should disconnect after 120 seconds which indicates that the sqlnet.inbound_connect_timeout is active. If you have further questions regarding this issue then please create a Service Request in My Oracle Support and provide the following information: a. Client and matching server traces generated at support level. Note 395525.1 How to Enable Oracle Net Client,Server,Listener,Kerberos and External procedure Tracing from Net Manager b. Upload sqlnet.ora, listener.ora Sqlnet.log, & Alert_<sid>.log from database server REFERENCESNOTE:395525.1 - How to Enable Oracle id=730066.1&parent=DOCUMENT&sourceId=465043.1" style="">NOTE:730066.1 id=374116.1&parent=DOCUMENT&sourceId=465043.1" style="">NOTE:374116.1 |
ORA-27301: OS failure message: Not enough space的更多相关文章
- ORA-27300: OS system dependent operation:sendmsg failed with status: 105 ORA-27301: OS failure message: No buffer space available
早上查看数据库alert日志,发现如下ORA-报错: kgxpvfynet: mtype: 61 process 6460 failed because of a resource problem i ...
- mysql Communication link failure, message from server: "Can't get hostname for your address"
在连接mysql jdbc时候,抛出了 com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communicat ...
- 性能测试过程中oracle数据库报ORA-27301 ORA-27302错
最近在性能测试过程中发现,发现虚拟用户数上不去,加载到一定的数量应用端就报错,提示连接数据库出错.在测试的过程中查看web容器的线程池 数据源的连接池 都还有空闲,同时查看oracle的v$sessi ...
- 一次goldengate故障引发的操作系统hang起,HA自动切换
现场: 跑着数据库的主机A报警应用连接不上数据库,我们无法ssh到主机.第一反应是通过telnet到远程控制口,发现数据库资源和硬件资源在被切换到HA架构的主机B(备机,通常性能比主机A的差,抗不住应 ...
- 苏大文正节点一 ORA-00603 ORA-27504 ORA-27300 ORA-27301 ORA-27302 BUG
Problem Description --------------------------------------------------- Tue Sep 01 04:05:33 2020 s ...
- ORA-27154: post/wait create failed ORA-27300 ORA-27301 ORA-27302
今天刚装了Oracle 11g,配制好了之后启动数据库时遇到下面的错误:SQL> startupORA-27154: post/wait create failedORA-27300: OS s ...
- 转载:oracle 启动过程--oracle深入研究
Oracle数据库的启动-nomount状态深入解析 通常所说的Oracle Server主要由两个部分组成:Instance和Database.Instance是指一组后台进程(在Windows上是 ...
- oracle之 Got minus one from a read call 与 ORA-27154: post/wait create failed
在部署应用的时候,有时候应用可以直接启动,但偶尔应用却无法启动,报错信息是: java.sql.SQLRecoverableException: IO Error: Got minus one fro ...
- 从ORA-27300,ORA-27301到ORA-00064
近期因为session数量添加,须要调整session,也就是要调整process參数. 看是比較简单的一个问题,却遭遇了ORA-27300,ORA-27301.因为这个涉及到了有关内核參数k ...
随机推荐
- 语法错误1:TabError: Inconsistent use of tabs and spaces in indentation
如图错误: 出错原因: 由于写代码过程用的tab缩进 解决方法: 把tab缩进改用空格缩进
- PHP中的魔术方法和魔术常量
看上去好像挺烦人,但只要通过例子测试一下,就明白了.不做测试,只是看,第二天还是不明白.当然我在抄其他人的日志,然后希望能是自己的理解就好,原文地址PHP的魔术方法和魔术敞亮简介和使用--LaraBo ...
- P1796 汤姆斯的天堂梦_NOI导刊2010提高(05)
题目描述 汤姆斯生活在一个等级为0的星球上.那里的环境极其恶劣,每天12小时的工作和成堆的垃圾让人忍无可忍.他向往着等级为N的星球上天堂般的生活. 有一些航班将人从低等级的星球送上高一级的星球,有时需 ...
- 大白话理解箭头函数this
var obj1={ num:4, fn:function(){ num:5; var f=() => { num:6; console.log(this.num); //4 外层非箭头函数包裹 ...
- (转)vuex2.0 基本使用(2) --- mutation 和 action
我们的项目非常简单,当点击+1按钮的时候,count 加1,点击-1按钮的时候,count 减1. 1, mutation The only way to actually change state ...
- 关于ListView中item与子控件抢夺焦点的解决方法
1.在开发中,listview可以说是我们使用最频繁的控件之一了,但是关于listview的各种问题也是很多.当我们使用自定义布局的Listview的时候,如果在item的布局文件里面存在Button ...
- WEB笔记-2 剖析CSS规则
2.1 剖析CSS规则 规则即指令,其声明了需要修改的元素及要应用给元素的样式. 2.2 为文档添加样式的三种方法 行内样式:直接写在HTML文档标签中的style属性当中,行内元素只 ...
- 实验8 标准模板库STL
一.实验目的与要求: 了解标准模板库STL中的容器.迭代器.函数对象和算法等基本概念. 掌握STL,并能应用STL解决实际问题. 二.实验过程: 完成实验8标准模板库STL中练习题,见:http:// ...
- java中负数的补码转换为十进制
一个数如果为正,则它的原码.反码.补码相同:一个正数的补码,将其转化为十进制,可以直接转换. 已知一个负数的补码,将其转换为十进制数,步骤: 1.先对各位取反: 2.将其转换为十进制数: 3.加上负号 ...
- (转)Arcgis for Js之GeometryService实现测量距离和面积
http://blog.csdn.net/gisshixisheng/article/details/40540601 距离和面积的测量时GIS常见的功能,在本节,讲述的是通过GeometryServ ...
To.gif)