crysis ceph

CentOS 7 x64 Installing CephSecond, the experimental environmentNode IP host Name SystemMON 172.24.0.13 ceph-mon0 CentOS 7 X64MDS 172.24.0.13 ceph-mds0 CentOS 7 X64OSD0 172.24.0.14 ceph-osd0 CentOS 7 X64OSD1 172.24.0.14 CEPH-OSD1 CentOS 7 X64ClientThird, installation steps1, first establish the Machine SSH trust relati

Ceph Client mount file system, boot auto Mount[Admin-node node] installation Ceph-common, authorization apt-getinstallceph-common[emailprotected]:~#cat/ Etc/hosts172.16.66.143admin-node172.16.66.150node8172.16.66.144ceph-client [Emailprotected]:~#ssh-copy-idnode8[node8 node] installation ceph[emailprotected]:~# apt-getinstallceph-y[emailprotected]:~#

DirectoryChapter 1th Introduction1.1 Document Description1.2 Reference documentsThe 2nd chapter the concept and principle of erasure code2.1 Concepts2.2 Principle3rd Chapter Introduction of CEPH Erasure code3.1 Ceph Erasure code use3.2 Ceph Erasure code Library3.3 Ceph Erasure code data storage3.3.1 Encoding block read

1. Introduction Ceph is a unified, distributed storage system designed for outstanding performance, reliability, and scalability. It also provides three functions for object storage, block storage, and file system storage to simplify deployment and operations while meeting the needs of different applications. 2. Installation Preparation Note: The following command may appear in character format when pasting the copy, if the command prompt ca

Ceph Cluster report Monitor clock skew detected error troubleshooting, resolvingThe alarm information is as follows:[Email protected] ceph]# ceph-wCluster ddc1b10b-6d1a-4ef9-8a01-d561512f3c1dHealth Health_warnClock skew detected on mon.ceph-100-81, mon.ceph-100-82Monitor Clock Skew detectedMonmap E1:3 Mons at {ceph-100

Extended development of ceph management platform CalamariI haven't written logs for nearly half a year. Maybe I am getting lazy. But sometimes writing something can help you accumulate it. Let's record it. I have been familiar with some related work since I joined the company for more than half a year. Currently, I am mainly engaged in the research and development of distributed systems. The current development is mainly at the management level and ha

Ceph performance tuning-Journal and tcmalloc Recently, a simple performance test has been conducted on Ceph, and it is found that the performance of Journal and the version of tcmalloc have a great impact on the performance.Test Results # rados -p tmppool -b 4096 bench 120 write -t 32 --run-name test1 Object size Bw (MB/s) Lantency (s) Pool size Journal Tcmalloc version Max thre

[Email protected]:~# ceph OSD Tree # id Weight type name up/down reweight -1 0.05997 Root Default -2 0.02998 Host Osd0 1 0.009995 Osd.1 up 1 2 0.009995 Osd.2 up 1 3 0.009995 Osd.3 up 1 -3 0.02998 Host OSD1 5 0.009995 Osd.5 up 1 6 0.009995 Osd.6 up 1 7 0.009995 Osd.7 up 1 Storage nodeBefore you go any further, consider this: Ceph is a distributed storage system, regardless of the details

Solution to Ceph cluster disk with no available spaceFault description During use of the OpenStack + Ceph cluster, because the Virtual Machine crashes into a large amount of new data, the cluster disk is quickly consumed, there is no free space, the virtual machine cannot operate, and all operations of the Ceph cluster cannot be performed. Fault symptom An erro

If you want to reprint please indicate the author, original address: http://xiaoquqi.github.io/blog/2015/06/28/ceph-performance-optimization-summary/I've been busy with the optimization and testing of ceph storage, and have looked at various materials, but it seems that there is not an article to explain the methodology, so I would like to summarize here, a lot of content is not my original, but to do a sum

The use case is simple, I want to use both SSD disks and SATA disks within the same machine and ultimately create pools pointing to SSD or SATA disks. in order to achieve our goal, we need to modify the crush map. my example has 2 SATA disks and 2 SSD disks on each host and I have 3 hosts in total. To revoke strate, please refer to the following picture: I. Crush Map Crush is very flexible and topology aware which is extremely useful in our scenario. we are about to create two different root

About CephWhether you want to provide Ceph object storage and/or Ceph block devices for the cloud platform, or if you want to deploy a Ceph file system or use Ceph as his, all of the Ceph storage cluster deployments start with deploying a

1. Ceph integration with OpenStack (cloud-only features available for cloud hosts) Created: Linhaifeng, Last modified: about 1 minutes ago To deploy a cinder-volume node. Possible error during deployment (please refer to the official documentation for the deployment process) Error content: 2016-05-25 08:49:54.917 24148 TRACE Cinder runtimeerror:could Not bind to 0.0.0.0:8776 after trying for seconds Problem Analysis: runtim

The simplest ceph.conf configuration is as follows:= 798ed076-8094-429e-9e27-= ceph-192.168. 1.112 = = =192.168. 1.0/2The command is as follows:PS -aux| grep CephOutput on Ceph-admin:Ceph2108 0.2 2.2 873932 43060? Ssl -: - 0: -/usr/bin/ceph-osd-f--cluster Ceph--ID 2--setuser C