On Mon, May 3, 2021 at 6:36 AM Lokendra Rathour <lokendrarathour@xxxxxxxxx> wrote: > > Hi Team, > I was setting up the ceph cluster with > > - Node Details:3 Mon,2 MDS, 2 Mgr, 2 RGW > - Deployment Type: Active Standby > - Testing Mode: Failover of MDS Node > - Setup : Octopus (15.2.7) > - OS: centos 8.3 > - hardware: HP > - Ram: 128 GB on each Node > - OSD: 2 ( 1 tb each) > - Operation: Normal I/O with mkdir on every 1 second. > > T*est Case: Power-off any active MDS Node for failover to happen* > > *Observation:* > We have observed that whenever an active MDS Node is down it takes around* > 40 seconds* to activate the standby MDS Node. > on further checking the logs for the new-handover MDS Node we have seen > delay on the basis of following inputs: > > 1. 10 second delay after which Mon calls for new Monitor election > 1. [log] 0 log_channel(cluster) log [INF] : mon.cephnode1 calling > monitor election In the process of killing the active MDS, are you also killing a monitor? -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat Sunnyvale, CA GPG: 19F28A586F808C2402351B93C3301A3E258DD79D _______________________________________________ Dev mailing list -- dev@xxxxxxx To unsubscribe send an email to dev-leave@xxxxxxx
