openstack ceph

This tutorial is based on the Ubuntu12.04 edition, and it will help readers build a openstack minimized installation. I am the top of the Wuyue, translation more use of transliteration method, so the individual words and the original discrepancy, please understand. I am not a major in English, I think the most important thing is to understand the technology, and not the four level and grind in the boring English-Chinese translation, so my goal is loya

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

Ceph source code analysis: Network Module Because Ceph has a long history, the network does not use the epoll model that is currently commonly used, but uses a multi-threaded model similar to MySQL. Each connection (socket) has a read thread, read data from the socket continuously. A write thread writes data to the socket. Multi-threaded implementation is simple, but the concurrency performance is not flatt

storage monitoring when the object is stored as Ceph instead of Swfit, using the polling mechanism to obtain data using Ceph's Rados Gateway API interface, the specific design document: https://github.com/ Openstack/ceilometer-specs/blob/master/specs/kilo/ceilometer_ceph_integration.rst Ceilometer API RBAC-finer granularity of permissions control: Https://github.com/

production businesses, the goal is to provide customers with a high-performance, highly reliable, vendor-free, and open infrastructure cloud service platform (IAAS. Unitedstack will provide out-of-the-box openstack cloud services to enterprise users through the UOS public cloud and UOS hosting cloud. Cheng hui told reporters that the UOS public cloud is a high-performance, fast-response infrastructure cloud service. In the development process of UOS

Application and fault handling of CEPH in KVM virtualizationIn a distributed cluster, the user is provided with object storage, block storage and file storage.Benefits: Unified StorageNo single point of failureData multi-split redundancyScalable storage CapacityAutomatic fault tolerance and fault self-healingThree major role components of ceph and their rolerepresented as 3 daemonsCeph OSDMonitorMdsThere ar

Ceph's data management begins with the Ceph client's write operation, and since Ceph uses multiple replicas and strong consistency policies to ensure data security and integrity, a write request data is written to the primary OSD first and then primary The OSD further copies the data to the secondary and other tertiary OSD and waits for their completion notification before sending the final completion confi

Hardware requirements Installing OpenStack 1 Installing the CentOS 65 system and emptying the Iptables firewall rules 2 The required toolkit for installing the system includes OpenStack-dependent and cloudfoundry-dependent 3 Installing Epel Repo 4 Upgrade Current system 5 Installing OpenStack Repo currently cloudfoundry can

Ceph RADOSGW Object Storage interface, research configuration for a long time, now share the following. The prerequisite for configuring RADOSGW first is that you have successfully configured the Ceph cluster to view the Ceph cluster through Ceph–s, in the health state. Here, the auth configuration of the

Nova ConfigurationDisk_cachemodes = "Network=writeback" (enabled)Change to Disk_cachemodes = "Network=none" (off) Ceph Configuration Open Ceph RBD CacheClientRbd_cache = TrueRbd_cache_writethrough_until_flush = TrueAdmin_socket =/var/run/ceph/guests/$cluster-$type. $id. $pid. $cctid. AsokLog_file =/var/log/qemu/qemu-guest-$pid. logRbd_concurre

[TOC]k8s Mount Ceph RBDk8s Mount Ceph RBD There are two ways, one is the traditional way of PVPVC, which means that the administrator needs to pre-create the relevant PV and PVC, and then the corresponding deployment or replication to mount the PVC use. After k8s 1.4, Kubernetes provides a more convenient way to dynamically create PV, that is, Storageclass. Using Storageclass, you do not have to create a fi

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

Openstack official website content: http://docs.openstack.org/grizzly/openstack-object-storage/admin/content/ Because I only focus on the part of openstack Object Storage, I did not write anything related to other modules (or I am relatively lazy). I may add it if necessary in the future. The translation level is limited. If a netizen finds an error during re

server downtime, VMware's HA feature protects virtual machines running on corrupted servers, and automatically migrates to other working hosts in a reboot without manual manual intervention. OpenStack If you enable Ceph distributed storage, you can take time to heat the migration, but need manual operation, for unexpected physical machine failure downtime, but also need to post-mortem manual intervention t

Ceph practice summary: the configuration of the RBD block device client in Centos, cephrbd 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