Document directory
1. Design a CEpH Cluster
3. Configure the CEpH Cluster
4. Enable CEpH to work
5. Problems Encountered during setup
Appendix 1 modify hostname
Appendix 2 password-less SSH access
CEpH is a relatively new Distributed File
"Sammy", a banana-colored animal that contains no shells in the head and foot. These toutiao animals with multiple tentacles provide the most vivid metaphor for a distributed file system.
Multiple efforts are required to develop a distributed file system. However, if the problem can be solved accurately, it is price
component of the assignment is the cluster map. The cluster map is a valid representation of the device and shows the storage cluster. With Pgid and cluster mappings, you can locate any object.Ceph meta-Data serverThe work of the metadata server (CMDS) is to manage the namespace of the file system. While both metadata and data are stored in the object storage cluster, they are managed separately to support
object.
Ceph Meta Data server
The work of the metadata server (CMDS) is to manage the namespace of the file system. Although both metadata and data are stored in an object storage cluster, they are managed separately to support scalability. In fact, metadata is further split on a metadata server cluster, and metadata servers can adaptively replicate and allocate
file system using a client.I have read many articles on the Internet, but most of them are not suitable for 0.80 or can be omitted. For example, configure ceph. conf. Therefore, we have installed it several times and summarized this article. In addition, the company that acquired Ceph, Inktank, and released its own ve
]-admin ~]# ceph OSD Pool Create metadata the the[[Email protected]-admin ~]# ceph OSD Pool Create data the the[[Email protected]-admin ~]# ceph fs New filesystemnew metadata Data[[email protected]-admin ceph]# Ceph FSlsname:filesystemnew, metadata pool:metadata, data pool
Ceph file system getting started,
Zhang Yu (@ Yi Ling Yan), an open-source technical expert, shared Ceph at the C3 salon and recently wrote a series of blog posts about Ceph Analysis in one breath. There are 8 articles in total:
One of the "
This article is also published in the Grand game G-Cloud public number, pasted here, convenient for you to checkCeph, I believe many it friends have heard. Because of the OpenStack ride, ceph fires and gets more and more hot. However, it is not easy to use a good ceph, in the QQ group often hear beginners complain that ceph p
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 o
sequentially.
Import the prepared workstage script
Then submit
Run init-prepare-Main-cleanup-dispose in sequence.
Execution result
Description of each category in:Op-type-Operation TypeOp-count-Total number of operationsByte-count-byte totalAVG-restime-response time, which is the sum of data transmission time and processing timeAVG-procetime-read/write operation timeThroughput-throughput, number of operations per secondBandwidth-bandwidthSucc-ratio-operation success rate
The icon shows that the
Store data outside the database or file system to improve the performance and performance of the report system.
In report applications, the proportion of reports queried for historical data is large. Such reports have the following features: first, the data changes are small
One of the most important decisions that embedded developers make is the type of file system to deploy. Some file system performance is relatively high, some file system space utilizati
Tags: out-of-Library Computing File system report performance improvement set reportIn the report application, for the historical data query the proportion of the report is very large, this kind of report is characterized by: first, the data changes little, the historical data of the query will hardly change; second, the data volume is large, the data volume incr
1. ceph File System Overview Ceph was initially a PhD research project on storage systems, implemented by SageWeil in UniversityofCalifornia and SantaCruz (UCSC. Ceph is an open source distributed storage and part of the main Linux kernel (2.6.34. 1)
Article Title: Linux Log File System and Performance Analysis (group chart ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
The log file
The log file system can ensure the integrity of the overall data in the case of power failure or other system faults. Linux is one of the most supported operating systems, this article focuses on the common log file systems in Linux: ext3, reiserfs, XFS, and JFS log technologies, and tests them using standard test tool
.
Other file systems: fat/fat32 can also be used for extended memory (SD cards for actual embedded systems, such as PDA, Smartphone, and digital cameras ), this is mainly for better compatibility with the most popular Windows desktop operating systems. Ext2 can also be used as an embedded Linux File System, but using it in FLASH memory has many drawbacks.
2. RAM-
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