Summary of installation Step 0: Prerequisites Step 1: Create Openstack hostsystem Step 2: Config Openstack host system : Install Openstackplatform : Login Openstack Step 5: Config to access external network Step 0: Prerequisites Software ·Red Hat Ent…

Last three days, I want to install devstack on my virtual machine on Vmware Workstation.The VM'system is Ubuntu14.04. However,i met too many problem to install it successfully.When i cannot see the hope, i had to borrow a America VM from my workmate.…

Issue: There are many root causes to make your openstack vm instances cannot be reached from external network. But one of them in my case is VMs and Host (Openstack host) can only ping each other successfully; others are all failed, including vms can…

Hadoop MapReduce Next Generation - Setting up a Single Node Cluster. Purpose This document describes how to set up and configure a single-node Hadoop installation so that you can quickly perform simple operations using Hadoop MapReduce and the Hadoop…

Purpose(目标) This document describes how to set up and configure a single-node Hadoop installation so that you can quickly perform simple operations using Hadoop MapReduce and the Hadoop Distributed File System (HDFS). 这个文档描述了如何安装和配置一个单节点的Hadoop安装,这样很…

Hadoop: Setting up a Single Node Cluster. Hadoop: Setting up a Single Node Cluster. Purpose Prerequisites Supported Platforms Required Software Installing Software Download Prepare to Start the Hadoop Cluster Standalone Operation Pseudo-Distributed O…

issue==== INFO neutron.api.v2.resource [req-79a36d02-114b--b9ed-0a10c6d69451 ] update failed (client error): External network fb519e52-0f68-44c7-8d9e-a01cae24c0a6 is not reachable from subnet 05bf68d3-3bb4--8c30-c7bb8ead39a0. Therefore, cannot associ…

转载请注明出处:http://www.cnblogs.com/wubdut/p/4681286.html platform: Ubuntu 14.04 LTS hadoop 1.2.1 1. install ssh: $sudo apt-get install openssh-server $sudo apt-get install openssh-client 2. ssh no password access: $ssh wubin (your computer) $ssh-keygen $…

创建OpenStack的node环境脚本 使用source admin-openrc.sh来运行脚本 在任意目录下创建admin-openrc.sh文件 vim ~/admin-openrc.sh export OS_TENANT_NAME=admin export OS_USERNAME=admin export OS_PASSWORD=Abcd1234 export OS_AUTH_URL=http://controller:35357/v2.0 在任意目录下创建 demo-openrc.s…

all rows from client_id can grow infinitely compared to a single node when hashing by client_id Re: [pingcap/tidb] Performance comparison between TiDb and Vitess(#7160) Because of the range-sharding, many joins/inserts/updates/deletes become cross-no…