Ceph mons down

Author: fngg

August undefined, 2024

WebDec 17, 2024 · 当此种情况发生时，根据你运行的 Ceph 版本，可能看到类似下面的输出： root@OPS-ceph1:~# ceph health detail HEALTH_WARN 1 mons down, quorum 1,2 b,c … WebFirst of all, we need to make sure the monitor (mon) daemon processes (ceph-mon) are running. You would be amazed by how often Ceph admins forget to start the mons, or to …

ceph-mon -- ceph monitor daemon — Ceph Documentation

WebSep 3, 2024 · Hello, I have an old ceph 0.94.10 cluster that had 10 storage nodes with one extra management node used for running commands on the cluster. Over time we'd had some hardware failures on some of the storage nodes, so we're down to 6, with ceph-mon running on the management server and 4 of the storage nodes. WebJan 30, 2024 · ceph> health HEALTH_WARN 1/3 in osds are down or. ceph> health HEALTH_ERR 1 nearfull osds, 1 full osds osd.2 is near full at 85% osd.3 is full at 97% ... ceph.num_mons: number of monitor nodes available. ceph.aggregate_pct_used: percentage of storage capacity used. ceph.num_pools: number of pools. … shorts psg

ceph mons stuck in electing state - ceph-users - lists.ceph.io

WebIn Openshift Container Storage (OCS) 4. MONs not using PV's but rather are host mounted, print the following warning: # ceph status health: HEALTH_WARN mons x,x are low on available storage # ceph health detail HEALTH_WARN mons a,b,c are low on available space MON_DISK_LOW mons a,b,c are low on available space mon.a has 30% avail … WebDec 8, 2024 · we're experiencing a problem with one of our ceph monitors. Cluster uses 3 monitors and they are all up&running. They can communicate with each other and gives … WebIn this example, the Controllers are included because the Ceph mons need Ansible to change their OSD definitions. If config-download has generated an ansible-playbook-command.sh script, you can also run the script with the --limit option to pass the specified nodes to ceph-ansible: short spruce tree varieties

How To Set Up a Ceph Cluster within Kubernetes Using Rook

Re: 1/3 mons down! mon do not rejoin — CEPH Filesystem Users

WebSep 3, 2024 · To keep it down, there are 2 ways: - either set "ceph osd set noup", - or actually shut the OSD down. The first version will allow the OSD to keep running so you can talk to the daemon while it is marked "down" . Be aware that the OSD will be marked "out" after a while. You might need to mark it "in" manually when you are done with maintenance. WebJul 25, 2024 · CEPH Filesystem Users — Re: 1/3 mons down! mon do not rejoin. Re: 1/3 mons down! mon do not rejoin [Thread Prev][Thread ... mon is is not joining the ceph … sao md chef cookwareWebMar 12, 2024 · The general ceph.log doesn't show this, check your OSD logs to see more. One possibility, all MONs need to provide the same updated maps to clients, OSDs and MDS. Use one local timeserver (in hardware) to sync the time from. This way you can make sure, that all the nodes in the cluster have the same time. sao memory defrag hack ipa

"WebWe expect the MDS to failover to the standby instance dub-sitv-ceph-01 which is in standby-replay mode, and 80% of the time it does with no problems. However, 20% of the time it doesn't and the MDS_ALL_DOWN health check is not cleared until 30 seconds later when the rebooted dub-sitv-ceph-02 and dub-sitv-ceph-04 instances come back up. " - Ceph mons down

Ceph mons down

ceph-mon -- ceph monitor daemon — Ceph Documentation

WebDescription . ceph-mon is the cluster monitor daemon for the Ceph distributed file system. One or more instances of ceph-mon form a Paxos part-time parliament cluster that … WebOct 3, 2024 · Sometime you had Ceph MONs are down, and return out of quorum status. This tutorial you will learn How to recreate MON daemon on Ceph. Step 1 – Remove …

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WebJun 7, 2024 · In kubernetes, I have persisted my ceph mons as outlined on tickets here, specifically the "/var/lib/ceph/mon" directory. I am using a statefulsets (3 pods) with local-storage to persist them. When i first bring them up in a brand new cluster, they come up cleanly. When i shut them down, they shut down cleanly. WebFirst of all, we need to make sure the monitor (mon) daemon processes (ceph-mon) are running. You would be amazed by how often Ceph admins forget to start the mons, or to …

WebAs for the MONs you should either figure out why the srv2 and srv3 containers won't start ( cephadm logs --name ) or you just wipe them (carefully!!) and recreate them. … WebOtherwise, you will get duplicate alerts with multiple alert definitions. rulesNamespace: rook-ceph network: # toggle to use hostNetwork hostNetwork: false rbdMirroring: # The number of daemons that will perform the rbd mirroring. # rbd mirroring must be configured with "rbd mirror" from the rook toolbox. workers: 0 # enable the crash collector ...

WebIf you are able to start the ceph-mon daemon but is is marked as down, follow the steps in The ceph-mon Daemon Is Running, but Still Marked as down. The ceph-mon Daemon …

Web1. kubectl -n rook-ceph get deployment rook-ceph-mon-b -o yaml > rook-ceph-mon-b-deployment.yaml. Open the file and copy the command and args from the mon container (see containers list). This is needed for the monmap changes. Cleanup the copied command and args fields to form a pastable command. Example:

WebAs a reminder here is the list of requirements for production environments: One OCP 4.7 (or greater) cluster. OpenShift Data Foundation (ODF) 4.7 (or greater) Two (2) failure domains for OSD deployment. At least two (2) nodes in each availability zone. LSO is a requirement for UI deployment. shorts publicitairesWebThe operator will need to query the Ceph status periodically (perhaps every minute). If there is a change to the mons, the operator will update the local configmaps/secrets.\ If the local operator fails to see changes to the external mons, perhaps because it is down, the mon list could become stale. shorts psycho bunnyWeb@carmstrong here are some more detailed information using ceph admin socket, on the ceph page there are also no information about having two leaders and how to solve it. … shorts psdWebIf a Ceph Monitor has an outdated or corrupted Ceph Monitor map ( monmap ), it cannot join a quorum because it is trying to reach the other Ceph Monitors on incorrect IP … shorts puma hommeWebJul 18, 2024 · We have 3 Monitors in this Ceph cluster, one on each of the 3 Monitor hosts. Case: 1 out of 3 Monitor Processes is Down¶ This is to test a scenario when 1 out of 3 … shorts pub crossmaglenWebCategory. Configure. This solution is part of Red Hat’s fast-track publication program, providing a huge library of solutions that Red Hat engineers have created while supporting our customers. To give you the knowledge you need the instant it becomes available, these articles may be presented in a raw and unedited form. shorts pubgWebIf you want to tear down the cluster and bring up a new one, be aware of the following resources that will need to be cleaned up: rook-ceph namespace: The Rook operator … shorts pub bellaire mi