Hi All,
We have the following setup:
2 MDS's (active/passive pair), one is the MGC, while the other is the active
MDS.
On the MDS that also runs the MGC, we did this:
lctl nodemap_add_range --name anunna --range 192.168.48.100@tcp2
This results in the following nodemap ranges:
for node in mds200 mds201;do echo $node;ssh -x $node lctl get_param -R
nodemap.anunna.ranges;done
mds200
nodemap.anunna.ranges=
[
{ id: 11, start_nid: 192.168.48.232@tcp2, end_nid: 192.168.48.232@tcp2 },
{ id: 10, start_nid: 192.168.48.231@tcp2, end_nid: 192.168.48.231@tcp2 },
{ id: 9, start_nid: 192.168.48.249@tcp2, end_nid: 192.168.48.249@tcp2 },
{ id: 6, start_nid: 192.168.2.0@o2ib, end_nid: 192.168.2.255@o2ib },
{ id: 5, start_nid: 192.168.33.0@o2ib2, end_nid: 192.168.33.255@o2ib2 },
{ id: 4, start_nid: 192.168.32.0@o2ib2, end_nid: 192.168.32.255@o2ib2 }
]
mds201
nodemap.anunna.ranges=
[
{ id: 12, start_nid: 192.168.48.100@tcp2, end_nid: 192.168.48.100@tcp2 },
{ id: 11, start_nid: 192.168.48.232@tcp2, end_nid: 192.168.48.232@tcp2 },
{ id: 10, start_nid: 192.168.48.231@tcp2, end_nid: 192.168.48.231@tcp2 },
{ id: 9, start_nid: 192.168.48.249@tcp2, end_nid: 192.168.48.249@tcp2 },
{ id: 6, start_nid: 192.168.2.0@o2ib, end_nid: 192.168.2.255@o2ib },
{ id: 5, start_nid: 192.168.33.0@o2ib2, end_nid: 192.168.33.255@o2ib2 },
{ id: 4, start_nid: 192.168.32.0@o2ib2, end_nid: 192.168.32.255@o2ib2 }
]
As you can see mds201 (the one running the MGC) nicely has the additional IP
range, but the active MDS doesn't.
As one might imagine, this then results in a non working client, we get
permission denied errors if we want to access the mount.
As this is our production system, I would like to propagate the new nodemap
range to the active MDS from the MGC without having to restart the service, if
possible.
I haven't found the command to do this in the documentation, and our friendly
LLMs all give very bad advice.
Does anybody here have (a pointer to) a solution?
With kind regards,
--
Jan van Haarst
HPC Administrator
For Anunna/HPC questions, please use https://support.wur.nl (with HPC as
service)
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Afdeling Informatie Technologie
Postbus 59, 6700 AB, Wageningen
Gebouw 116, Akkermaalsbos 12, 6700 WB, Wageningen
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