It is always customary to compare with Oracle database when learning MySQL. When learning the storage structure of MySQL InnoDB, it is also unavoidable to compare with Oracle. Oracle's data storage is table space, segments, blocks, chunks, data files; MySQL InnoDB storage management is similar, but MySQL adds a concept of shared tablespace and stand-alone table space;First, the conceptShared tablespace: All
where is the member management system stand-alone version? "A single start" Any enterprise has a small to large development process, in order to meet the needs of a variety of individual entrepreneurs loyal customers, software companies launched a variety of version of the membership management system. such as stand-alone
separate data and indexes.Exclusive table SpaceEach table will be stored in a separate file, with each table having a .frm table description file and a .ibd file. This file includes the data content of a single table and the contents of the index.Advantages and disadvantages of shared tablespace and stand-alone table space share table space pros and cons
Advantages
You can divide a tablespac
1 installing spark-dependent Scala
1.2 Configure environment variables for Scala
1.3 validation Scala
2 Download and decompression spark
3 Spark-related configuration
3.1 Configuring environment variables
3.2 Configure the files in the Conf directory
3.2.1 New Spark-env.h file
3.2.2 New Slaves file
4 test stand-alone mode of spark
4.1 running Spark sample program in
=10synclimit=5datadir=/home/young/zookeeper/dataclientport=2181Don't forget to create a new DataDir directory:Mkdir/home/young/zookeeper/dataCreate an environment variable for zookeeper, open the/etc/profile file, and at the very end add the following:Vi/etc/profileAdd content as follows:Export Zookeeper_home=/home/young/zookeeperexport path=.: $ZOOKEEPER _home/bin: $JAVA _home/bin: $PATHAfter the configuration is complete, switch to the Zookeeper/bin directory and start the service:To close the
Creating a stand-alone Web Services application using Eclipse and Java SE 6, part 1th: Web Services server-side applications
Before you start
About this series
This series of tutorials demonstrates how to use Java SE 6 to create stand-alone Web services server and client applications that can easily run from the com
The environment of this article is as follows:Operating system: CentOS 6 32-bitZookeeper version: 3.4.8
0. Environmental requirementsZookeeper requires JDK1.6 above version of the Java environmentcan refer to:CentOS 6 Install JDK8 using rpm1. Download the packageDownload the package to the Zookeeper website http://zookeeper.apache.org/ , for example:"http://apache.opencas.org/zookeeper/stable/zookeeper-3.4.8.tar.gz"tar -xzvf zookeeper-3.4.8.tar.gzmv zookeeper-3.4.8 /opt2.
Turncate table for Innodb-plugin InnoDB also shrinks the space.For tables that use stand-alone table spaces, no matter how they are deleted, the fragmentation of the tablespace does not affect performance too severely, and there is a chance to process it.5) The efficiency and performance of using exclusive tablespaces are a bit higher.Disadvantages:1) Single table increased too large, such as more than 100
Stand-alone version of the kubernetes suitable for beginners, Kuber has a very good introduction.Because the CentOS system has a built-in installation source. We can install directly1. Yum install-y Etco kubernetes2, Whereis EtcdGrep-v ' ^# '/etc/etcd/etcd.confModify/etc/etcd/etcd.confare modified to:4, start the kuber of the various services:Kube-apiserver Kube-controller-manager Kube-scheduler Kubelet kub
First of all, the Hadoop 2.x version after the changes, here post an article, feel good to write.http://www.ibm.com/developerworks/cn/opensource/os-cn-hadoop-yarn/Next, we build the Hadoop stand-alone version, my next version is 2.7.3, the same we still download the bin file package, directly decompression can be used.Http://hadoop.apache.org/releases.html"Set host name, configure hosts""Login without passw
Zookeeper stand-alone installation configuration1. Preparation before installation
Linux System (this article environment is Centos6.5)
Zookeeper installation package, official website https://zookeeper.apache.org/, demo version zookeeper-3.4.7.tar.gz
2, Decompression: TAR-ZXVF zookeeper-3.4.7.tar.gz3. Modify the configuration file
CD zookeeper-3.
;telnet start the port number of the ZK machine node IP for external service (telnet 192.168.1.105 2181)--->statII: Zookeeper pseudo-cluster mode configuration"1" pseudo-cluster mode (a zookeeper machine forged into a cluster) configuration and cluster mode configuration is similar, there are differences on the configuration file.#server. Id=host:port1:port2---the same IP address as the >host--->follower and leader communicate the same port number.--->leader election is not the same number"2" Fi
Description
Operating system: CentOS 6.x 64-bit
Kafka version: kafka_2.11-0.8.2.1
To achieve the purpose:
Stand-alone installation Configuration Kafka
Specific actions:
First, close SELinux, open firewall 9092 port
1. Close SELinux
Vi/etc/selinux/config
#SELINUX =enforcing #注释掉
#SELINUXTYPE
the evolution process of large Web site system architecture from stand-alone to billion-level traffic
Stage One, stand-alone build Web site
At the beginning of the site, we often run all our programs and software on a single machine. At this point we use a container, such as Tomcat, Jetty, Jboos, and then use the Jsp
Monday, February 19, 2018 LeeThis experimental step is relatively simple, can only be used to demonstrate the construction process, the actual production environment is very complex. Lab Environment:centos6.5 x86_64ip:10.0.20.25Here the experiment is not used in HDFs, production environment, hbase or to save data to hdfs more secure. 1. Installing the stand-alone zookeepercd/root/Tar XF zookeeper-3.4.8.tar.
Tags: rewrite ORM end local counter x86 retrieve events ReasonAs a result of the online system disk stroke control too much resource consumption, resulting in server load is too high, often affect the stability of the intraday trading, recently decided to split the wind control into a separate library for calculation, and backfill operations. In general, some of the tables related to wind control calculations are synchronized to the repository, but the synchronized tables need to be from Db_act-
It is always customary to compare with Oracle database when learning MySQL. When learning the storage structure of MySQL InnoDB, it is also unavoidable to compare with Oracle. Oracle's data storage is table space, segments, blocks, chunks, data files; MySQL InnoDB storage management is similar, but MySQL adds a concept of shared tablespace and stand-alone table space;First, the conceptShared tablespace: All
Oracle ASM replaces storage and hosts:1. In the new host when installing a stand-alone grid, and the database software, you can copy from the source host, and then clone the operation2. Hang the new storage on the old host, set up a new disk group, back up the database to the new disk group with backup copy, andThe new storage is unmapped from the old host,3. Export the old OCR and import the new host,./OCR
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