抛出的异常信息如下: java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(ClassLoader.java:800)at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)at java.net.U
PURPOSE When troubleshooting Ambari issues, it may be necessary to enable debug logging in the Ambari Server log /var/log/ambari-server/. PROCEDURE To enable debug logging in Ambari server follow the following steps: 1. Open the relevant configuratio
SQL SERVER升级2017 摘要 本文只介绍了SQL SERVER升级到2017(在简单环境下),分为开始升级前的检查事项,升级操作步骤,升级后对新实例的配置. 检查事项 1.检查当前版本是否可以升级到2017 SQL Server 2017 (14.x) supports upgrade from the following versions of SQL Server: SQL Server 2008 SP4 or later SQL Server 2008 R2 SP3 or lat
环境: Windows server 2008 r2 Standard +SqlServer2008R2 内网环境需要升级为SQL server 2012 升级安装时提示版本不支持 网上查询相关问题, 必须是SQL server2008 r2 sp1以上及需要安装Sp2补丁包才能升级为SQL server 2012 1)下载地址:微软官网 https://www.microsoft.com/zh-CN/download/details.aspx?id=30437 2)选择你对应的安装SQL s
Ambari server 搭建过程中到了revicw环境遇到点击deploy:发现页面没有响应 Console显示server 返回500 error错误,页面中没有提示更多的报错信息. 经过日志查看,发现日志中报了如下错误: 12 Mar 2018 21:25:41,903 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert hbase_regionserver_process for a