Hi Koos, First thing -- it's generally a bad idea to run newer server versions with older clients (the opposite isn't true).
Second -- do you have any logging that you can share from the client itself? (dmesg, syslog, etc) A quick test may be to run 2.12.7 clients against your cluster to verify that there is no interop problem. -cf On Thu, Nov 18, 2021 at 8:58 AM Meijering, Koos via lustre-discuss < [email protected]> wrote: > Hi all, > > We have build a lustre cluster server environment on CentOS7 and lustre > 2.12.7 > The clients are using 2.12.5 > The setup is 3 clusters for a 3PB filesystem > One cluster is a two node cluster built for MGS and MDT's > The other two clusters are also two node cluster used for the OST's > The cluster framework is working as expected. > > The servers are connected in a multirail network, because some clients are > in IB and the other clients are on ethernet > > But we have the following problem. When an OST failover to the second node > the clients are unable to contact the OST that is started on the oder node. > The OST recovery status is waiting for clients > When we fail it back it starts working again and the recovery status is > compple > > We tried to abort the recovery but that does not work. > > We used these documents to build the cluster: > https://wiki.lustre.org/Creating_the_Lustre_Management_Service_(MGS) > https://wiki.lustre.org/Creating_the_Lustre_Metadata_Service_(MDS) > https://wiki.lustre.org/Creating_Lustre_Object_Storage_Services_(OSS) > > https://wiki.lustre.org/Creating_Pacemaker_Resources_for_Lustre_Storage_Services > > I'm not sure what the next steps must be to find the problem and where to > look. > > Best regards > Koos Meijering > ........................................................................ > HPC Team > Rijksuniversiteit Groningen > ........................................................................ > _______________________________________________ > lustre-discuss mailing list > [email protected] > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org >
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