openstack ceph

expansion requirements. Currently, open-source distributed Block Storage includes CEpH, glusterfs, and sheepdog. Compared with CEpH, the biggest advantage is that the Code is short and well maintained, and the hack cost is very small. Sheepdog also has many features not supported by CEpH, such as multi-disk and cluster-wide snapshot. In this article, Japanese NT

expansion requirements. Currently, open-source distributed Block Storage includes CEpH, glusterfs, and sheepdog. Compared with CEpH, the biggest advantage is that the Code is short and well maintained, and the hack cost is very small. Sheepdog also has many features not supported by CEpH, such as multi-disk and cluster-wide snapshot. In this article, Japanese NT

One, Ceph replacement drive process:1. Delete OSD:A, stop the OSD daemonStop Ceph-osd Id=xB, Mark OSD outCeph OSD out OSD. XC, OSD Remove from CrushmapCeph OSD Remove OSD. XD, Delete ceph anthentication keysCeph Auth del osd. XE, remove OSD from Ceph clusterCeph OSD RM OSD. X2, add OSD (warning: Add after deletion, OSD

ceph configuration parameters (i)6. Keyvaluestore CONFIG REFERENCEHttp://ceph.com/docs/master/rados/configuration/keyvaluestore-config-ref/KeyValueStore is an alternative OSD Backend compared to Filestore. Currently, it uses LevelDB as backend. Keyvaluestore doesn ' t need journal device. Each operation would flush into the backend directly. Back end (LEVELDB) used by the Keyvaluestore:keyvaluestore Backend (1) Queue Maximum num

Ceph configuration parameters (2)Ceph configuration parameters (a) 6, keyvaluestore config reference http://ceph.com/docs/master/rados/configuration/keyvaluestore-config-ref/ KeyValueStore is an alternative OSD backend compared to FileStore. currently, it uses LevelDB as backend. keyValueStore doesn' t need journal device. each operation will flush into the backend directly. the backend (leveldb) used by Ke

The basic idea of the cache tiering is the separation of hot and cold data, the use of relatively fast/expensive storage devices such as SSD disks to form a pool as the cache layer, the backend with relatively slow/inexpensive devices to form a cold data storage pool.The Ceph cache tiering Agent handles automatic migration of data from the cache layer and storage layer, transparently to client transparent operations. The Cahe layer has two typical mod

Have no time to write on business trip ...Create 150 OSD Today, find manual write ceph.conf a bit big, researched the increment function of vim.Very simple is a command:: Let I=0|g/reg/s//\=i/|let i=i+1It can match the Reg in your text and then follow your i+n, increasing +n per passThe function of the above command is to find the Reg character in the text, then replace it with 0 from the first, then +1So in the ceph.conf, we can first copy out 150 [OSD.GGGG], and then in the use of the above co

This is a creation in Article, where the information may have evolved or changed. All the places involved in storage are very prone to "pits", Kubernetes is no exception. First, the cause of the problem The problem began yesterday by upgrading the operation of a stateful service. The pod under the service is mounted with a persistent Volume provided with Ceph RBD. The pod is deployed with normal deployment and does not use the Petset in Alpha state. T

I. OverviewCephfs is a CEpH cluster-based file system that is compatible with POSIX standards.When creating a cephfs file system, you must add the MDS service to the CEpH cluster. This service processes the metadata part in the POSIX file system, and the actual data part is processed by the osds in the CEpH cluster.Cephfs supports loading by using INCORE modules

650) this.width=650; "title=" "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160403-1459686062320040176.jpg "style=" Border:none;color:rgb (51,51,51); font-family: ' Microsoft Yahei '; font-size:14px;line-height:26px; "/>Before learning about OpenStack services, let's build an experimental environment first.There is no doubt that OpenStack, which can see the touch and allow us to toss

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. 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

Ceph file system installation, Yum install-y wgetwget https://pypi.python.org/packages/source/p/pip/pip-1.5.6.tar.gz#md5=01026f87978932060cc86c1dc527903etar zxvf pip-1.5.6.tar.gzcd pip-1.5.6python setup. py buildpython setup. py installssh-keygen ################################## echo" ceph-admin ">/etc/hostname # echo" ceph-node1 ">/etc/hostname # echo"

Ceph crush the question to read over and over again, the relevant chapters of the CEPH source analysis book are summarized as follows:4.2.1 Hierarchical Cluster MapExample 4-1 Cluster map definitionHierarchical cluster map defines the static topology of the OSD cluster with hierarchical relationships. The level of the OSD enables the crush algorithm to realize the ability of the rack-aware (rack-awareness)

Ceph configuration parameters (1)1. POOL, PG AND CRUSH CONFIG REFERENCEConfiguration segment: [global] format: osd pool default pg num = 250 maximum pg count per storage pool: number of seconds between creation of pg in the same OSD Daemon in the mon max pool PG num: how many seconds does the mon pg create interval wait PG can be considered to be the master: mon pg stuck thresholdCeph OSD Daemon on PG flag bits: osd pg bitsCeph OSD Daemon PGP bits: os

1. Manually format each disk, such as/DEV/SDB1 for data partitioning and/DEV/SDB2 for log partitioning. 2. Mkallxfs 3. Modify the/etc/ceph/ceph.conf file: [Global]authsupported=noneosdpooldefaultsize=2osdcrush chooseleaftype=0objecter_inflight_op_bytes=4294967296objecter_inflight_ops=1024#debug filestore=100#debugosd=10debugjournal=1filestore blackhole=falsefilestorequeuemaxops=1024filestorequeuemaxbytes= 1073741824filestoremaxsyncinterval=5#osdopnumt