glusterfs vs ceph

: Command_nginx_zhushi = "grep%s/etc/nginx/conf.d/panda.saicmotor.com.conf|grep ' # ' |wc-l"%ip ApacHe_connect_perform (Ip_nginx1,command_nginx_zhushi) if int (result) = = 0: NEW_DST = "' S/server%s/#/'"%ip dst = ["sed", "-I", NEW_DST, "/etc/nginx/conf.d/panda . saicmotor.com.conf "] Command_nginx_apache_stop =" ". Join (DST) New_command = ["sudo su-c", ' "', Command_nginx_apache_stop, '" ', "-"] New_command_split = "". Join (New_comm

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

message if the version number is larger than accepted, and to proposer reply Promise message that promises not to accept Prepare messages with a version number less than V ; Proposer received Promise message, statistics approved version V of the number of acceptor , if more than half, it is considered that this version is currently the latest (can be submitted). Phase2-a:proposer participation Proposer resets the timer Tp, sends the acceptrequest message to each a

Reprint annotated source, Chen Trot http://www.cnblogs.com/chenxianpao/p/5770271.htmlFirst, installation environmentos:centos7.2vsm:v2.1 releasedSecond, installation instructionsThe VSM system has two roles, one is Vsm-controller and the other is vsm-agent. The vsm-agent is deployed on a ceph node, and the Vsm-controller is deployed on a separate node. Vsm-controller should also be deployed on CEPH nodes wi

In the previous article, we introduced the use of CEpH-deploy to deploy the CEpH cluster. Next we will briefly introduce the CEpH operations. Block device usage (RBD)A. Create a user ID and a keyringCEpH auth get-or-create client. node01 OSD 'Allow * 'mon 'Allow * '> node01.keyringB. Copy the keyring to node01.SCP node01.keyring [email protected]:/root

Owncloud Introduction:is a free software developed from the KDE community that provides private WEB services. Current key features include file management (built-in file sharing), music, calendars, contacts, and more, which can be run on PCs and servers.Simply put is a PHP-based self-built network disk. Basically private use this, because until now the development version has not exposed the registration function. I use the php7.1-based lamp environment to build this owncloud next article will i

past interval. Last_epoch_started: Last peering after the Osdmap version number epoch. Last_epoch_clean: Last recovery or backfill after the Osdmap version number epoch. (Note: After the peering is finished, the data recovery operation is just beginning, so last_epoch_started and Last_epoch_clean may differ). For example: The current epoch value of the Ceph system is pg1.0, and the acting set and up set are all [0,1,2] Osd.3 failure resulte

Keyvaluestore is another storage engine that Ceph supports (the first is Filestore), which is in the Emporer version of Add LevelDB support to Ceph cluster backend store Design Sum At MIT, I put forward and implemented the prototype system, and achieved the docking with ObjectStore in the firely version. is now incorporated into Ceph's Master. Keyvaluestore is a lightweight implementation relative to Filest

I recently needed to test the rgw of CEpH in my work, so I learned while testing. First, the tool uses Intel's open-source tool cosbench, which is also the industry's mainstream object storage testing tool. 1. cosbench installation and startupDownload the latest cosbench packageWget https://github.com/intel-cloud/cosbench/releases/download/v0.4.2.c4/0.4.2.c4.zipExtractUnzip 0.4.2.c4.zip Install related ToolkitYum install java-1.7.0-openjdk NMAP-ncat

Because the kubelet itself does not support RBD commands, a kube system plugin is required:Download Plugin Quay.io/external_storage/rbd-provisioner：Https://quay.io/repository/external_storage/rbd-provisioner?tag=latesttab=tagsDownload Docker pull quay.io/external_storage/rbd-provisioner:latest on node of k8s clusterInstall only the plugin itself will error: need to install kube roles and permissions The following are:Https://github.com/kubernetes-incubator/external-storageHttps://github.com/kube

Using the Ceph OSD Tree command to view the Ceph cluster, you will find weight and reweight two values Weight weight and disk capacity, general 1T, value is 1.000, 500G is 0.5 It is related to the capacity of the disk and does not change due to reduced disk available space It can be set with the following command Ceph OSD Crush Reweight The reweight is a v

Ceph uses block storage, and the system kernel needs to 3.0 and above the kernel to support some ceph modules. You can specify a type when creating a block (Type1 and type2) , only type2 can protect the snapshot and protect it before cloning. Complete operation process with block device:1 , creating a block device ( in M)RBD Create yjk01--size 1024x768--pool vms--image-format 2RBD info yjk01--pool VMSRBD

Phenomenon:The question of request blocked is often found through the Ceph-w log (if the virtual machine system runs on Ceph, it will find a serious lag)Investigation:1, through the Dstat did not find a significant bottleneck (Dstat-tndr 2)2, through the Iostat also found no obvious bottleneck (IOSTAT-DX 2)3, through the Netstat also did not find the Storage Network network card send queue or receive queue

each object 2M capacity, the total capacity of this value is 100T)[Email protected] ~]# ceph OSD Pool Set-quota data max_objects 50000000Set-quota max_objects = 25000000 for pool dataSet the data pool to a maximum storage space of 100T[[email protected] ~]# ceph OSD Pool Set data target_max_bytes 100000000000000Set pool 0 target_max_bytes to 1000000000000004, data pool full problem resolution, now the

First, view QEMU-KVM/usr/libexec/qemu-kvm-drive=?Supported FORMATS:VVFAT VPC vmdk VHDX VDI Sheepdog RBD Raw host_cdrom host_floppy host_device file QED qcow2 qcow Paralle LS NBD iSCSI gluster dmg cloop Bochs blkverify blkdebugThe supported formats contains RBD to support Ceph RBDSecond, view qemu-imgQemu-img-Hsupported formats:vvfat VPC vmdk VHDX VDI Sheepdog RBD Raw host_cdrom host_floppy host_device file QE D qcow2 Qcow parallels NBD iSCSI gluster D

Official documents:http://docs.ceph.com/docs/master/cephfs/http://docs.ceph.com/docs/master/cephfs/createfs/(create CEPHFS file system)Ceph official Chinese Documentation:http://docs.ceph.org.cn/Configuration in OpenStack:http://docs.ceph.com/docs/master/rbd/rbd-openstack/Blogs, etc.:http://blog.csdn.net/dapao123456789/article/category/2197933Http://docs.openfans.org/ceph/ceph4e2d658765876863/

Tags: iostat dd smartctlTest disk usage in Ceph environment when writing to the cache drive[Email protected] ~]# lsblkNAME maj:min RM SIZE RO TYPE mountpointSr0 11:0 1 1024M 0 romSDB 8:16 0 20G 0 disk└─cachedev-0 (dm-4) 253:4 0 20G 0 dm/sandstone-data/sds-0SDA 8:0 0 50G 0 disk├─SDA1 8:1 0 500M 0 part/boot└─sda2 8:2 0 49.5G 0 part├─volgroup-lv_root (dm-0) 253:0 0 45.6G 0 LVM/└─volgroup-lv_swap (dm-1) 253:1 0 3.9G 0 LVM [swap]SDC 8:32 0 20G 0 disk├─vg_m