Hello List!
We're working on creating a new Lustre instance using Lustre 2.12.1 on Centos 7.6 and are running into problems when trying to mount OSTs. When trying to attach a new OST we get this message on the MDS server: LustreError:(events.c:305:request_in_callback()) event type 2, status -103, service mgs LustreError:(pack_generic.c:590:__lustre_unpack_msg()) message length 0 too small for magic/version check LustreError:(pack_generic.c:590:__lustre_unpack_msg()) Skipped 1 previous similar message LustreError:(sec.c:2191:sptlrpc_svc_unwrap_request()) error unpacking request from 12345=200.1.20.205@o2ib x1633617112465632 LustreError:(sec.c:2191:sptlrpc_svc_unwrap_request()) Skipped 1 previous similar message LustreError:(o2iblnd_cb.c:3325:kiblnd_check_txs_locked()) Timed out tx: active_txs, 0 seconds LustreError:(o2iblnd_cb.c:3400:kiblnd_check_conns()) Timed out RDMA with 200.1.20.205@o2ib (6): c: 8, oc: 0, rc: 8 LustreError:(events.c:305:request_in_callback()) event type 2, status -103, service mgs The confusing thing is that several OSTs had already been mounted successfully and we can find no configuration differences between the OSTs that mount and the OSTs that do not. The network is 100GB Ethernet using RoCE and lnetctl ping completes successfully on all the servers. Does anybody have any thoughts on what might be causing these errors and any way to address them? Thanks!
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