crysis ceph

First, the basic Environment introduction:This article uses the Ceph-deploy tool for ceph installation,Ceph-deploy can be used as a single admin node or in any node node. 650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/82/A1/wKiom1ddI6STpLAkAAAvJVPW-Z4918.png "title=" 1.png " alt= "Wkiom1ddi6stplakaaavjvpw-z4918.png"/>The system environment is as follo

In the case of a network, Ubuntu installation software is very convenient, to install Ceph, also on a command to fix, want to install ceph0.72 on ubuntu14.04, because the official source of Ceph Ceph-extra does not contain ubuntu14.04 trusty package, Ceph, which uses 163 of its source, is an unwanted version, so it com

The pool is a logical partition of Ceph's stored data, and it acts as a namespace. Other distributed storage systems, such as MogileFS, Couchbase, and Swift, have the concept of pool, but they are called different. Each pool contains a certain number of objects in the PG,PG are mapped to different OSD, so pool is distributed throughout the cluster. Apart from isolating data, we can also set different optimization strategies for different pool, such as number of replicas, number of data cleansing

First, collocated group status1. CreatingWhen you create a storage pool, it creates a specified number of collocated groups. CEPH displays creating when creating one or more collocated groups, and when created, the OSD in the acting set of its collocated group will be interconnected; Once the interconnect is complete, the Collocated group state should become active+clean, meaning that the Ceph client can wr

Before starting the text, I would like to thank Unitedstack Engineer Zhu Rongze for his great help and careful advice on this blog post. This paper makes a more explicit analysis and elaboration on the calculation method of Ceph reliability (https://www.ustack.com/blog/build-block-storage-service/) for Unitedstack company at the Paris summit. For the interests of this topic friends to discuss, research, the article if there is inappropriate, but also

Ceph practice summary: configuration of the RBD block device client in Centos Before proceeding to this chapter, you need to complete the basic cluster building, please refer to the http://blog.csdn.net/eric_sunah/article/details/40862215 Ceph Block devices are also calledRBDOrRADOS. Block Device During the experiment, a virtual machine can be used as the ceph-c

Learn about Ceph, an open source distributed storage system that enhances your OpenStack environment Ceph is an open-source, distributed storage System that complies with POSIX (Portable operating system for UNIX) and runs under the GNU general Public License. Originally developed by Sage Weill in 2007, the project was founded on the idea of proposing a cluster without any single point of failure to ensure

Operation: The Ceph cluster expands several nodes.Anomaly: When the Ceph cluster synchronizes, the OSD process is always abnormally down (after a period of time data is synchronized).Ceph Version: 9.2.1Log:July 2509:25:57ceph6ceph-osd[26051]:0>2017-07-2509:25:57.471502 7f46fe478700-1common/HeartbeatMap.cc:Infunction ' Boolceph:: Heartbeatmap::_ch7 Month 2509:25:5

Redhat 6.2 Installation Configuration ceph (former) 1. Install Ceph-deploy Vim/etc/yum.repos.d/ceph.repo [Ceph] Name=ceph Packages for $basearch Baseurl=http://ceph.com/rpm-giant/el6/x86_64 Enabled=1 Gpgcheck=1 Type=rpm-md Gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc [

Telegraf is a collection of monitoring agents, there are support to collect a variety of data plug-ins such as Ceph,apache,docker,haproxy,system, but also support a variety of output plug-ins such as Influxdb,graphite and so on.Influxdb is a time series database and is used for monitoring scenariosGrafana is a great drawing tool.The combination of the three has three main processes: Nbsp;1. The Telegraf installed on all nodes of the

As we mentioned earlier, Ceph is a distributed storage service that supports a unified storage architecture. A brief introduction to the basic concepts of ceph and the components that the infrastructure contains, the most important of which is the underlying rados and its two types of daemons, OSD and Monitor. We also dug a hole in the previous article and we mentioned crush. Yes, our tutorial is an incompl

1. Installing the PYTHON,UWSGI,NGINX EnvironmentPIP installation omittedYumgroupinstall "Developmenttools" Yuminstallzlib-develbzip2-develpcre-developenssl-develncurses-develsqlite-develreadline-develtk-develyuminstallpython-dev Elpipinstalluwsgi2. Understand the Restful APIHttp://www.ruanyifeng.com/blog/2014/05/restful_api.html3. Understanding the Flask FrameworkHttp://www.pythondoc.com/flask-restful/first.html4. Call the Python plugin libraryhttp://docs.ceph.org.cn/rbd/librbdpy/5. Write Interf

Thomas is my pseudonym used by the Ceph China Community Translation team, which was first published in the Ceph China community. Now reproduced to my blog, for everyone to circulateCEPH ObjectStore API IntroductionThis article was translated by the Ceph China Community-thomas, Chen School Draft.English Source: The CEPH

Summary of common Hadoop and Ceph commandsIt is very practical to summarize the commonly used Hadoop and Ceph commands.HadoopCheck whether the nm is alive. bin/yarn node list deletes the directory and hadoop dfs-rm-r/directory.Hadoop classpath allows you to view the paths of all classes.Hadoop leave safe mode method: hadoop dfsadmin-safemode leave wordcount program: generate random text bin/hadoop jar hadoo

based on the high-speed configuration of the Ceph storage cluster environment, it is possible to do related object operations:1. Set the OSD pool Min_sizefirst look at the pool with the Rados command such as the following:#rados LspoolsDatametadataRBDThe default OSD number of Min_size is configured to 2, where an OSD example is required to set it to 1ceph OSD Pool get {pool-name} {key}ceph OSD Pool set {Poo

In planning the CEPH distributed storage cluster environment, the choice of hardware is very important, this is related to the performance of the entire Ceph cluster, the following comb to some of the hardware selection criteria, for reference:1) CPU SelectionCeph metadata server will dynamically redistribute the load, which is CPU sensitive, so metadata server should have better processor performance (such

1. Disable the CEpH OSD process. Service CEpH stop OSD 2. Balance the data in the CEpH Cluster 3. Delete the OSD node when all PG balances are active + clean. CEpH cluster status before deletion [[Email protected] ~] # CEpH OSD tree # ID weight type name up/down reweight -1

1. Overview The entire deployment architecture of calamari can be simplified to the following illustration, including the client and calamari systems. The calamari system consists of the calamari server and the agents running on the Ceph cluster. The agent keeps sending data to the Calamari server, which stores the data in the database. The client can connect the Calamari server through the HTTP protocol and show the State and information of the

# # # #ceph系统 # #1. Linux version: Centos Linux release 7.1.1503 2, kernel version: Linux version 3.10.0-229.20.1.el7.x86_64 # # # #前期准备 # #1, a complete Ceph platform (including Admin-node, Monitor, OSD). # # # #在admin-node shut down the firewall, selinux####1. Turn off the firewall. #systemctl Stop Firewalld #systemctl disable FIREWALLD 2, turn off SELinux. #setenforce 0 #vim/etc/selinux/config selinu

This section reads as follows:Increase Monitoring NodeAdding OSD NodesRemove the OSD node1: Increase monitoring nodeHere we use the last environment, to increase the monitoring node is very simpleLet's get the Monitoring node environment ready: Change the Hosts file and hostname, and update the hosts file for the Deploy nodeOn the Deployment nodeCD first-ceph/Ceph-deploy new Mon2 Mon3//here refers only to w