Server Exception Error

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The novice to do Hadoop most headaches all kinds of problems, I put my own problems and solutions to sort out the first, I hope to help you. First, the Hadoop cluster in namenode format (Bin/hadoop namenode-format) After the restart cluster will appear as follows (the problem is very obvious, basically no doubt) incompatible namespaceids in ...: Namenode Namespaceid = ...

Phenomenon will host network cable unplugged, regionserver over a period of time will be shutdown out, regionserver abnormal timeout detection mechanism is controlled by which parameter? Regionsever exception shutdown log: 2017-08-03 21:17:42,762 WARN [Main-sendthread (ocscloud07:9501)]zookeeper. Clientcnxn:session 0x25ce ...

Hdp hadoop installation is not a smooth success every time, inevitably will always report a lot of errors, here are some wrong solutions.

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Zookeeper cluster mode can not deploy the cloud server [java.net.BindException: Unable to specify the requested address (Bind failed)] solution. The main text In the cloud server (Aliyun, Tencent cloud) on the deployment of Zookeeper cluster mode, there are many reasons for the failure, the Internet mainly refers to the port is occupied (not open) and firewall open two kinds of problems, a lot of similar blog, this article is not To repeat. If you've already made changes for both of the above two cases and still have not been successful, then maybe ...

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In the process of writing this series of articles, I have summed up a number of best practices. In this article, I've covered more things to consider when protecting your Windows Azure application. Here are some tools and coding tips and best practices: running on the operating system to get the latest security patches as much as possible to run error handling in partial trust mode how to implement a retry logical record error in Windows Azure storage access to a Blob of access rights storage connection string Guard mode ...