<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[千里足迹]]></title><description><![CDATA[积累为王]]></description><link>https://blog.youkuaiyun.com/techsupporter</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; techsupporter]]></copyright><item><title><![CDATA[记一次secureCRT ssd连虚拟机Linux慢的问题]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/138824148</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/138824148</guid><author>techsupporter</author><pubDate>Mon, 13 May 2024 23:32:00 +0800</pubDate><description><![CDATA[4、最后，通过修改/etc/sshd/sshd_config里的UseDNS no，从yes改为no，service sshd restart之后一下就连上了。1、检查是防火墙firewalld，systemctl disable firewalld停止。问题现象：ssh连不上，telnet 22端口没问题 ping也是通的。2、selinux停止。]]></description><category></category></item><item><title><![CDATA[kubelet-config“ is forbidden]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/127405972</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/127405972</guid><author>techsupporter</author><pubDate>Wed, 19 Oct 2022 16:51:01 +0800</pubDate><description><![CDATA[kubernetes 集群安装问题处理]]></description><category></category></item><item><title><![CDATA[oracle11g asm单实例重建has]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/118441618</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/118441618</guid><author>techsupporter</author><pubDate>Sat, 03 Jul 2021 16:21:01 +0800</pubDate><description><![CDATA[最近到客户那里处理故障，客户说，他们修改了一下hostname，导到has出现了问题，当然，他们的数据库也就无法再启动，把处理过程记录下来，供大家参考！
在有些时候，我们修改了hostname，以及其它一些配置后，导至has、crs均无法启动，这时候，我们就需要对has、crs进行重建，其具体步骤如下。
1、首先修改hostname

[root@mydb ~]# vi /etc/hosts

# Do not remove the following line, or various programs
#]]></description><category></category></item><item><title><![CDATA[redhat 6.5(rhel-server-6.5-x86_x64)+oracle11gr2 rac]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/53401864</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/53401864</guid><author>techsupporter</author><pubDate>Sat, 03 Jul 2021 16:19:01 +0800</pubDate><description><![CDATA[VMware 9.0+redhat 6.5(rhel-server-6.5-x86_x64)+oracle11gr2
 rac
很久没有关注ORACLE了，官方发行版已经更新到12c了，考虑到目前大部分用户还在使用11g rac，今天在虚拟机上安装红帽最新版redhat6.5,并克隆，安装11G grid以及数据库，安装过程中有很多故事，搜集了很多其他网友的文章，记录了一些关键步骤与报错信息，]]></description><category></category></item><item><title><![CDATA[oracle 10g  rac vmware 安装问题]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/104183955</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/104183955</guid><author>techsupporter</author><pubDate>Wed, 05 Feb 2020 16:07:41 +0800</pubDate><description><![CDATA[问题一：节点2在执行./root.sh的时候，这里卡住了

NO KEYS WERE WRITTEN. Supply -force parameter to override.

-force is destructive and will destroy any previous cluster

configuration.

Oracle Cluster Registry for clus...]]></description><category></category></item><item><title><![CDATA[cpio的用法]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/104183818</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/104183818</guid><author>techsupporter</author><pubDate>Wed, 05 Feb 2020 15:52:20 +0800</pubDate><description><![CDATA[cpio的用法

cpio

这个命令挺有趣的，因为 cpio 可以备份任何东西，包括装置设备文件。不过 cpio 有个大问题， 那就是 cpio 不会主动的去找文件来备份！啊！那怎办？所以罗，一般来说， cpio 得要配合类似find等可以找到档名的命令来告知 cpio 该被备份的数据在哪里。




[root@www ~]# cpio -ovcB  &gt; [file|d...]]></description><category></category></item><item><title><![CDATA[Aix挂载Linux nfs，用于oracle expdp目录]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/100024336</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/100024336</guid><author>techsupporter</author><pubDate>Thu, 22 Aug 2019 21:07:46 +0800</pubDate><description><![CDATA[AIX导出本地没有空间，只能通过nfs服务端，Aix挂载

nfs服务端：

[root@rac1 /root]
#rpm -aq|grep nfs
texlive-psnfss-svn23394.9.2a-38.el7.noarch
texlive-mfnfss-svn19410.0-38.el7.noarch
libnfsidmap-0.25-19.el7.x86_64
nfs-utils-...]]></description><category></category></item><item><title><![CDATA[RAC单个节点执行expdp提示ORA-31693 ORA-31617 ORA-19505 ORA-27037错误]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/100023834</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/100023834</guid><author>techsupporter</author><pubDate>Thu, 22 Aug 2019 20:41:37 +0800</pubDate><description><![CDATA[1.在RAC单节点执行expdp，出现ORA-31693 ORA-31617 ORA-19505 ORA-27037错误



ORA-31693:Tabledataobject"HR"."COUNTRIES"failedtoload/unloadandisbeingskippedduetoerror:

ORA-31617:unabletoopendump...]]></description><category></category></item><item><title><![CDATA[ssh 连接缓慢解决方法]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/86553331</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/86553331</guid><author>techsupporter</author><pubDate>Sat, 19 Jan 2019 15:58:47 +0800</pubDate><description><![CDATA[ssh 连接缓慢解决方法

重新安装机器的情况下我们经常会遇到的一个情况是telnet到server速度很快，但是ssh连接的时候却很慢，大概

要等半分钟甚至更久。ping的速度也非常好，让人误以为是ssh连接不上。

　

　　下面说下如何解决这样的问题，最为常见的原因是因为server的sshd会去DNS查找访问

client IP的hostname，如果DNS不可用或者没有相关记录，就会...]]></description><category></category></item><item><title><![CDATA[virtualbox 网络设置问题]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/80276037</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/80276037</guid><author>techsupporter</author><pubDate>Fri, 11 May 2018 04:59:50 +0800</pubDate><description><![CDATA[Virtualbox 5.1.36 版本今天又准备在搞rac，发现原来的环境不通了准备将rac1 public IP设为 192.168.56.101  eth0   private IP设置为 10.10.10.10rac2 public IP 设为 192.168.56.101  eth0  private IP 设置为 10.10.10.11发现原来环境有一点乱：1、网卡设备名 有Auth-...]]></description><category></category></item><item><title><![CDATA[VirtualBox 虚拟机主机可以通，之前也可以通，又可以要上网]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78761035</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78761035</guid><author>techsupporter</author><pubDate>Sat, 09 Dec 2017 19:31:07 +0800</pubDate><description><![CDATA[所以，要想达到主机与两台虚拟机之间都可以互通，虚拟机之间又可以互通，必须修改网卡1的连接方式为host-only，网卡2改成是内部网址，用与私网通讯如果要让两台虚拟机都可以上网，那么就需要配置win7上网的网络连接为共享，共享给VirtualBox生成的host-only网卡，这样两台虚拟机就可以通过host-only的网上，再由经过上网的网卡上网了。




为了在VirtualBox]]></description><category></category></item><item><title><![CDATA[单点节oracle+ASM中的一些概念]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78682335</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78682335</guid><author>techsupporter</author><pubDate>Thu, 30 Nov 2017 23:31:19 +0800</pubDate><description><![CDATA[NAME=ora.DATA.dg
TYPE=ora.diskgroup.type
TARGET=ONLINE
STATE=ONLINE on ora11g


NAME=ora.LISTENER.lsnr
TYPE=ora.listener.type
TARGET=ONLINE
STATE=ONLINE on ora11g


NAME=ora.asm
TYPE=ora.]]></description><category></category></item><item><title><![CDATA[linux 6下面用udev配置asm磁盘的注意事项]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78681654</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78681654</guid><author>techsupporter</author><pubDate>Thu, 30 Nov 2017 22:15:57 +0800</pubDate><description><![CDATA[实验环境:
虚拟机：virtualbox 5.0.24 r108355
操作系统：rhel-server-6.5-x86_64



看了刘相兵大大的：

在Linux
 6上使用UDEV解决RAC ASM存储设备名问题
自己操作了一把，先前在linux5 的时候我是用asmlib来绑定ASM的，参考三思笔记，我在创建虚拟硬盘的时候用的SCSI格式的硬盘，在linux 5的时候]]></description><category></category></item><item><title><![CDATA[oracle 安装 ./runInstaller loading setup drivers]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78681503</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78681503</guid><author>techsupporter</author><pubDate>Thu, 30 Nov 2017 21:56:55 +0800</pubDate><description><![CDATA[RHEL6.5 安装Oracle11.2.0.3的grid时在loading
 setup driver时出错 
因为/etc/hosts没有添加本机IP和名称。 或者 配错了
竟然把机器名写前面，IP写后面，反了，哎。。]]></description><category></category></item><item><title><![CDATA[安装oracle出现Could not execute auto check for display colors using command]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78681412</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78681412</guid><author>techsupporter</author><pubDate>Thu, 30 Nov 2017 21:45:42 +0800</pubDate><description><![CDATA[在centos上安装软件时出现Could not execute auto check for display colors using command

 

Two solutions:

 

1.use oracle login x-window, then ./runInstaller

 

2.use root login,then

#xhost +  ]]></description><category></category></item><item><title><![CDATA[【学习笔记】oracle11g multi column statistics深入研究笔记]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78571847</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78571847</guid><author>techsupporter</author><pubDate>Sat, 18 Nov 2017 22:37:50 +0800</pubDate><description><![CDATA[oracle研究中心：目前，CBO（Cost-Based Optimizer）是Oracle默认使用的查询优化器Query Optimizer模式。在CBO中，SQL执行计划的生成，是以一种寻找成本（Cost）最优为目标导向的执行计划探索过程。所谓成本（Cost）就是将CPU和IO消耗整合起来的量化指标，每一个执行计划的成本就是经过优化器内部公式估算出的数字值。

与RBO（Rule-Base]]></description><category></category></item><item><title><![CDATA[Linux 克隆虚拟机引起的“Device eth0 does not seem to be present, delaying initialization”]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78329576</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78329576</guid><author>techsupporter</author><pubDate>Tue, 24 Oct 2017 14:53:38 +0800</pubDate><description><![CDATA[虚拟机Vmware上克隆了一个Red Hat Enterprise Linx启动时发现找不到网卡，如下所示，如果你在命令窗口启动网络服务就会遇到”Device
 eth0 does not seem to be present, delaying initialization“错误



关于这个错误，搜索了一下网上的资料，发现还蛮多人遇到过这类错误，了解了一下错误产生的原因和解决方案]]></description><category></category></item><item><title><![CDATA[oracle用户密码过期问题]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/78241147</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/78241147</guid><author>techsupporter</author><pubDate>Sun, 15 Oct 2017 15:33:43 +0800</pubDate><description><![CDATA[[oracle@edbjr2p1 ~]$ rman target / catalog rc_admin/rc_admin@prod4


Recovery Manager: Release 11.2.0.3.0 - Production on Sat Oct 14 15:38:28 2017


Copyright (c) 1982, 2011, Oracle and/or its a]]></description><category></category></item><item><title><![CDATA[Dataguard网络优化调整]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/74391946</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/74391946</guid><author>techsupporter</author><pubDate>Wed, 05 Jul 2017 11:19:13 +0800</pubDate><description><![CDATA[Dataguard网络优化调整



Oracle Management（192） 

版权声明：本文为博主原创文章，未经博主允许不得转载。
author：skate
time：2011/09/07
 
Dataguard网络优化调整
  
Dataguard依赖一个健康的网络，尤其是高负载的系统和网络环境，网络上有调整的需求。
 
1.Oracle Net
 Ses]]></description><category></category></item><item><title><![CDATA[在11g中使用ASM功能实现两个存储做镜像的方法]]></title><link>https://blog.youkuaiyun.com/techsupporter/article/details/73896449</link><guid>https://blog.youkuaiyun.com/techsupporter/article/details/73896449</guid><author>techsupporter</author><pubDate>Thu, 29 Jun 2017 14:10:57 +0800</pubDate><description><![CDATA[据我目前所知:两个存储之间作镜像有以下几种方法
1.存储厂商自己的HA软件,其特点是高效安全.但是需要购买license.
2.存储厂商也提供了两个存储之间作mirror的方法,这个不需要购买license(注意在存储领域,存储的HA和mirror指不同的功能),但是数据同步有延时,延时大小取决于lun的大小和实际的数据量.
3.在主机层面作,主机上配置2个hba卡,分别连接不同的存储,使用]]></description><category></category></item></channel></rss>