Powered by Redmine © 2006-2016 Jean-Philippe Lang Ceph health check status. num_mon. Number of monitor node. num_mon_quorum. Number of monitors in quorum. num_osd. Total number of OSD. num_osd_up. Number of OSDs that are up. num_osd_in. Number of OSDs that are in cluster. osd_epoch. Current epoch of OSD map. osd_bytes. Total capacity of cluster in bytes. osd_bytes_used. Number of used bytes on ...
One of them can be network problems. In such case, you may notice the cluster reaching quorum, OSD and monitor nodes going offline, data transfers taking a long time, or a lot of reconnect attempts. To check whether cluster performance is degraded by network problems, inspect the Ceph log files under the /var/log/ceph directory.

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Copy ceph configuration file ( ceph.conf ) from monitor node to client node and make sure it has permission of 644 # scp ceph.conf na_fedora19:/etc/ceph # chmod 644 ceph.conf. Copy the secret file from monitor node to client node under /etc/ceph. This allow filesystem to mount when cephx authentication is enabled ( we have done this earlier )
The monitor-count option gives the number of ceph-mon units in the monitor sub-cluster (where one ceph-mon unit represents one MON). The default value is '3' and is generally a good choice, but it is good practice to set this explicitly to avoid a possible race condition during the formation of the sub-cluster.

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Mar 19, 2014 · Ceph is a big system with lots of moving parts, and getting all of the pieces to fit together can be a chore without good tools. Thankfully, there's a new Ceph tool in town: ceph-deploy! The ceph-deploy tool allows you to install Ceph packages on remote hosts, initialize a cluster, add and remove nodes, and tear everything down again.
A Ceph Monitor maintains maps of the cluster state, including the monitor map, the OSD map, the Placement Group (PG) map, and If you need to remove a monitor for maintenance : ceph-deploy.

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Jan 23, 2017 · Install Ceph Server on Proxmox VE The video tutorial explains the installation of a distributed Ceph storage on an existing three node Proxmox VE cluster. At the end of this tutorial you will be able to build a free and open source hyper-converged virtualization and storage cluster.
--- # This playbook shrinks the Ceph monitors from your cluster # It can remove any number of monitor(s) from the cluster and ALL THEIR DATA # # Use it like this: # ansible-playbook shrink-mon.yml -e mon_host=ceph-mon01,ceph-mon02 # Prompts for confirmation to shrink, defaults to no and # doesn't shrink the cluster. yes shrinks the cluster. # # ansible-playbook -e ireallymeanit=yes|no shrink ...

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hello!最近也在研究ceph 也遇到了这样的问题,好像是monitor无法连接集群。 2014-03-21 10:51:46 点赞 只看TA 引用 举报 #2 得分 0
Nov 20, 2015 · The Ceph cluster consists of two types of daemons: Ceph OSD and Ceph Monitor. The Ceph OSD Daemon stores data in pools striped across one or more disks. Ceph OSDs also replicate, rebalance, and recover data, and report data usage. The Ceph Monitor maintains a master copy of the Ceph storage map and the current state of the storage cluster.

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Sep 01, 2015 · The MON map is used by the monitors in a Ceph cluster, where they keep track of various attributes relevant to the working of the cluster. Similar to the CRUSH map, a monitor map can be pulled out of the cluster, inspected, changed, and injected back to the monitors, manually.
It is helpful for the monitoring activity. The command also help us to be able to configure the arrays directly from the ESXi's shell without rebooting server to use HPE Smart Array Configuration Tool.

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May 11, 2019 · Ceph Monitors listen on port 6789 by default. Also daemons bind to ports within the 6800–7100 range. Install Ceph on all nodes: pveceph install --version luminous.
An update that solves one vulnerability and has 35 fixes is now available. SUSE Security Update: Security update for ceph, deepsea _____ Announcement ID: SUSE-SU-2020:3257-1 Rating: moderate References: #1151612 #1152100 #1155045 #1155262 #1156087 #1156409 #1158257 #1159689 #1160626 #1161718 #1162553 #1163119 #1164571 #1165713 #1165835 #1165840 #1166297 #1166393 #1166624 #1166670 #1166932 ...

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Copy ceph configuration file ( ceph.conf ) from monitor node to client node and make sure it has permission of 644 # scp ceph.conf na_fedora19:/etc/ceph # chmod 644 ceph.conf. Copy the secret file from monitor node to client node under /etc/ceph. This allow filesystem to mount when cephx authentication is enabled ( we have done this earlier )
install Install Ceph packages on remote hosts. mon Deploy ceph monitor on remote hosts. mds Deploy ceph MDS on remote hosts. gatherkeys Gather authentication keys for provisioning new nodes. disk Manage disks on a remote host. osd Prepare a data disk on remote host.

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As the title suggests, this article focuses on the administration of various services inside a Ceph cluster. A Ceph file system requires two pools to start with. One pool contains the data while another pool is meant for the metadata.

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I am running Proxmox with 2 nodes and Ceph. Recently I had a drive die and replaced it. In the process of trying to initialize it as an OSD, all I get are fault errors: 2017-07-31 15:05:05.278499
From excellent CEPH book ( I got it for free,but if you buy it, what I strongly advice, it worth the money you pay for it ) Learning CEPH we can read there A Ceph storage cluster requires at least one monitor to run. For high availability, a Ceph storage cluster relies on an odd number of monitors that’s more than one, for example, 3 or 5, to ...

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monitoring: Settings for monitoring Ceph using Prometheus. To enable monitoring on your cluster see the Similarly, nodes are only removed if the node is removed from the Ceph cluster resource.
Using the lvremove command, remove all volumes from the LVM setup on the drive. Follow the prompts and press "Y" to remove each LVM partition from the volume group.

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Ceph ansible is quickly catching up with ceph-deploy in terms of features. Last week, I was discussing the dm-crypt support . The ability to shrink a Ceph cluster, removing one or N monitors/OSDs wasn’t possible until very recently.
nmcli monitor. Observe NetworkManager activity. Watches for changes in connectivity state Add, modify or remove properties in the connection profile. To set the property just specify the property...

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Sep 12, 2016 · Monitors – Monitor health of Ceph cluster. One or more monitors forms a paxos part-time parliment, providing extreme reliability and durability of cluster membership. One or more monitors forms a paxos part-time parliment, providing extreme reliability and durability of cluster membership.
--remove ceph-deploy command line option ... Ceph Metadata Server Ceph Monitor Paxos bootstrapping monitors capacity planning clock cluster map configuring monitors

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Ceph monitoring icin 3 sey kullanabiliriz ; cli api 3th party gui Cluster saglik durumu ; [email protected]:~# ceph health HEALTH_WARN clock skew detected on mon.cephmon2; Monitor...
2.5.2 Removing a Ceph Monitor Node. 2.6 Upgrading Ceph Storage Cluster Nodes. 2.6.1 Upgrading Oracle Linux.

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Ceph is not abbreviated but a short form of cephalopod, an octopus like sea creature. As you may also notice all the ceph release is created with alphabetical order and lots of sea creatures as well. Argonaut, Bobtail, Cuttlefish, Dumpling, Emperor, Firefly, Giant, Hammer, Infernalis, Jewel, Kraken, Luminous, Mimic, Nautilus.

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