Chkconfig Add Example

Refer to Hadoop_hdfs system dual-machine hot standby scheme. PDF, after the test has been added to the two-machine hot backup scheme for Hadoopnamenode 1, foreword currently hadoop-0.20.2 does not provide a backup of name node, just provides a secondary node, although it is somewhat able to guarantee a backup of name node, when the machine where name node resides ...

It must be understood that vncserver, when invoked, will enable the server-side listening port based on your configuration, with the port default starting from 5900, plus your desktop number. For example, if your desktop number is 1, then VNC's connection port number is 5900+1=5901 For example, your desktop number is 10000, then VNC's connection port number is 5900+10000=15900 ===================================== ===================...

Kafka configures SASL authentication and permission fulfillment documentation. First, the release notes This example uses: zookeeper-3.4.10, kafka_2.11-0.11.0.0. zookeeper version no requirements, kafka must use version 0.8 or later. Second, zookeeper configuration SASLzookeeper cluster or single node configuration the same. Specific steps are as follows: 1, zoo.cfg file configuration add the following configuration: authProvider.1 = org.apa ...

Here's an excerpt of the background, followed by a record of the operations I migrated from MySQL 5.5.31 to mariadb 5.5.31 on CentOS 6.4. 　　Finally, I found a better way to migrate. 1. Background introduction MySQL is the world's most popular open source relational database. 2008, Sun acquired MySQL. Then, in 2010, Oracle bought Sun, and MySQL fell into Oracle's hands. Oracl ...

Docker study notes one. Update kernel, upgrade kernel to 3.x two. Install docker:rpm--import/etc/pki/rpm-gpg/rpm-gpg-key-epel-6 yum-y install Docker-io three. Start Docker:service Docker start Chkconfig Docker on four. Download base Mirror: Docker Pull Centos:lat ...

Here are some examples of using the rsync server. Running the Rsync service on the production server Assumption Network has the following 3 computer production servers-Pandr (192.168.0.220) Backup host A-backupa (192.168.0.221) Backup host B-BACKUPB (192.168.0.222) Configure rsync service 1 on Pandr, edit configuration file # Vi/etc/rsyncd ...

IBM Smartcloud™init (an IBM SmartCloud support package) is the first startup script developed from an Open-source cloud-init package. It was originally developed in the form of icon bundle in the integration context between Image construction and composition Tools (icon) and IBM SmartCloud Provisioning 1.2 ...

The previous section describes the contents of synchronizing and backing up using the rsync client command. Rsync can also be run as a daemon (daemon), and if a host runs rsync in daemon mode, it is generally called an rsync server. The mode of operation of the C/s mode of rsync is summarized as follows: Rsync client connects remote rsync daemon for data synchronization. Rsync server to open the RSYNCD service, the default listening to 873 ports, waiting for clients to connect ...