Ceph installation in CentOS (rpm package depends on installation)
CentOS is a Community version of Red Hat Enterprise Linux. centOS fully supports rpm installation. This ceph installation uses the rpm package for installation. However, although the rpm package is easy to install, it depends too much, it is convenient to use the yum tool for installation, but it is greatly affected by the network bandwidth.
CentOS is the community version of RedHatEnterpriseLinux. centOS fully supports rpm installation. this ceph installation uses the rpm Package for installation. However, although the rpm Package is easy to install, it depends too much, it is convenient to use the yum tool for installation, but it is greatly affected by the network bandwidth. In practice, if the bandwidth is not good, it takes a long time to download and install the tool, this is unacce
1. Installation Environment|-----node1 (MON,OSD)SDA is the system disk, SDB and SDC are OSD disks||-----node2 (MON,OSD)SDA is the system disk, SDB and SDC are OSD disksAdmin-----||-----node3 (MON,OSD)SDA is the system disk, SDB and SDC are OSD disks||-----Client6789-Port communication is used by default between Ceph Monitors, and 6,800:7,300 ports in this range are used to communicate between OSD by default2. Preparation work (all nodes)2.1. Modify th
1. Current status
2. Add a Mon (mon.node2) SSH node2 to 172.10.2.172 (Node2)
vim/etc/ceph/ceph.conf Add Mon.node2 related configuration
Ceph-authtool/tmp/ceph.mon.keyring--import-keyring/etc/ceph/ceph.client.admin.keyring
Monmaptool--create--add node1 172.10.2.172--fsid
Mkdir-p/var/lib/ceph/mon/
Ceph deadlock failure under high IO
On a high-performance PC server, ceph is used for VM image storage. In the case of stress testing, all virtual machines on the server cannot be accessed.
Cause:
1. A website service is installed on the virtual machine, and redis is used as the cache server in the website service. When the pressure is high (8000 thousand accesses per second), all the VMS on the host machin
Here will encounter an err, because the jewel version of CEPH requirements journal need to be Ceph:ceph permissions, the error is as follows:
Journalctl-xeu ceph-osd@9.service
0月 09:54:05 k8s-master ceph-osd[2848]: Starting Osd.9 at:/0 osd_data/var/lib/c Eph/osd/ceph-9/var/lib/ce
The CEpH experiment environment has been used within the company for a period of time. It is stable to use the Block devices provided by RBD to create virtual machines and allocate blocks to virtual machines. However, most of the current environment configurations are the default CEpH value, but the journal is separated and written to a separate partition. Later, we plan to use
Centos7.1 manual installation of ceph
1. Prepare the environmentOne centos7.1 hostUpdate yum Source
[root@cgsl ]# yum -y update
2. Install the key and add it to the trusted Key List of your system to eliminate security alarms.
[root@cgsl ]# sudo rpm --import 'https://download.ceph.com/keys/release.asc'
3. To obtain the RPM Binary Package, you need to add a Ceph library in the/etc/yum. repos. d/directory: Cr
The Oepnstack Ceph series is a collection of notes based on Ceph Cookbook, divided into the following sections:1. "Ceph profile"2. "Ceph cluster Operations"3. "Ceph block Device Management and OpenStack configuration"4. "In-depth ceph
Redhat's Ceph and Inktank code libraries were hacked
RedHat claims that Ceph community projects and Inktank download websites were hacked last week and some code may be damaged.
Last week, RedHat suffered a very unpleasant accident. Both the Ceph community website and the Inktank download website were hacked. The former is the open-source
First, the environment Node Overview mon:ceph-node01 ceph-node02 ceph-node03osd:ceph-node01 ceph-node02 ceph-node03mds:ceph-node01 CEPH-NODE02 operating system: Ubuntu 14.10 Each OSD host has an OSD with a usable capacity of 15GB per OSD. Second, the test process 1.
[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
Summary of Ceph practice: CephFS client configuration, cephcephfsBecause CephFS is not very stable at present, it may be used in more experiments.
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
You can attach a file system to a VM or on an independent physical machine. do not perform the following operations on the machine in the
Someone asked me, how did you manage to do the unified storage? I smiled, loudly told him: Ceph in hand, the world I have.
Ceph is a unified distributed storage system designed for outstanding performance, reliability, and scalability. After the adoption of OpenStack as the eldest brother is a very out of hand, by everyone's extensive attention. Of course, this is because it provides a variety of reliabl
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