ceph releases

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

Job Responsibilities:Participate in building cloud storage services, including development, design, and operational work?Requirements for employment:1, Bachelor degree or above, more than 3 years of storage system development, design or operation and maintenance work experience;2, familiar with the Linux system and understanding of the kernel, cloud computing, virtualization have some knowledge;3, have Ceph, Glusterfs and other distributed storage of

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

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

In centos6.3, to use CEpH block device, you must install a later version of qemu.Install qemu-1.5.2 after CEpH is installed# Tar-xjvf qemu-1.5.2.tar.bz2# Cd qemu-1.5.2#./Configure -- enable-RBDYou must add the -- enable-RBD option so that qemu can support the RBD protocol.In this step, an error may be reported:Error: user requested feature rados block DeviceConfigure was not able to find itThis is because t

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 Cluster Problem Grooming Created: Linhaifeng, last modified: Yesterday 5:35 afternoon 1: Will the data be sent to the log disk and deleted immediately or delayed?Validation: Tuning Parameters#从日志到数据盘最大同步间隔间隔秒数, Default: 5Filestore Max sync interval = 15Process Analysis: A client object sent to Ceph's PG, note that the log is written to return the results, and then within 15 seconds of the interval,Three OSD node data is synchronized

1 Describe my deployment environment first:2 osd,1 monitor,1 Console Management Server, 1 client, are 24 cores, 64G memory, 1.6T SSD flash card, gigabit network card; The Ceph version currently installed is 0.94.7.2 Current statusI use the DD command to write 5G data, using Iostat to observe%util immediately 100% Ah, while the await indicators are more than 4,000, and at this time the network bandwidth is only used around 10M.650) this.width=650; "Src

, type_zmfuz3pozw5nagvpdgk =) Add a new file: echo "Deb http://download.proxmox.com/debian/pve stretch PVE-no-subces">/etc/APT/sources. list. d/pve-install-repo.list! [] (Http://i2.51cto.com/images/blog/201811/02/d7f8fc1ea50ea3a7c2f87b8cb537ef17.jpg? X-OSS-process = image/watermark, size_16, expires, color_ffffff, t_100, g_se, x_10, y_10, shadow_90, type_zmfuz3pozw5nagvpdgk =) download key: wget http://download.proxmox.com/debian/proxmox-ve-release-5.x.gpg-O/etc/APT/trusted. GPG. d/proxmox-ve-re

Machine Room operation error caused the rack or host power down is the occasional thing, then how in this case, let the Ceph service with the OS startup and fast start? Here is a simple method:Execute the following command on the OSD host:sudo ln-s/usr/lib/systemd/system/[email protected]/etc/systemd/system/multi-user.target.wants/[email protected]sudo systemctl enable [email protected]sudo systemctl is-enabled [email protected]Execute the following c

K8s Cluster Install the client on each of the above:Ceph-deploy Install k8s IP addressCreate a k8s action user :Ceph auth Add client.k8s mon ' Allow rwx ' OSD ' Allow rwx 'Ceph auth get client.k8s-o/etc/ceph/ceph.client.k8s.keyring #导出新建用户的钥匙 to place the exported keys under the/etc/ceph/of each k8sCeph Auth List #查看权限

[Ceph_deploy] [ERROR] Runtimeerror:failed to execute Command:ceph-disk-activate–mark-init sysvinit–mount/dev/sdb1To be honest, the question is two.I put the OSD in a separate partition SDB executes the commands that are:Ceph-deploy OSD Prepare NETWORK:/DEV/SDB1Ceph-deploy OSD Activate NETWORK:/DEV/SDB1The above is wrong.The right thing isCeph-deploy Osd–zap-disk Create Network:sdbCeph-deploy OSD Prepare NETWORK:/DEV/SDB1:/DEV/SDB2Ceph-deploy OSD Activate NETWORK:/DEV/SDB1:/DEV/SDB2The problem is

Have you modified/sys/block/sdk/queue/read_ahead_kb read_ahead?Modified to 8192, the default value is 128;is the SATA disk OSD changed to 8192? How much of a performance boost?In addition, this value should be modified at any time, right? Can it be dynamically adjusted after deployment?What effect will it have on the OSD?can improve read performanceCan be modified in real timeWhat does this parameter mean?Pre-read bytes?This parameter is useful for sequential reads, meaning how much content to r