[lustre-discuss] 2.15.4 hangs during mount using TCP

[Hans Henrik Happe]

Hi,

I'm happy to report that LU-17664 fixed this.

Cheers,
Hans Henrik

On 22/03/2024 16.23, Hans Henrik Happe via lustre-discuss wrote:
> Hi,
>
> After updating to lustre 2.15.4 I've had trouble mounting over TCP. 
> Using Infiniband works fine, but over TCP it just hangs without errors 
> on client or servers.
>
> OS is Rocky 9.2 on client and CentOS 7.9 on servers running 2.12.9.
>
> Rocky 9.2 + 2.15.3 works, but both Rocky 9.2 and 9.3 with 2.15.4 hangs.
>
> Anyone having the same issue?
>
> A few notes about our system:
>
> - It's ZFS based.
> - It was created back in 2015. MGS, and MDTs have survived since then 
> (zfs send/receive), while new OSTs have been added over time an old 
> ones have been taken out.
> - There are 2 filesystems on an MDS pair. One MDT on each MDS. Both 
> have the hanging problem.
> - Dual network stack with Infiniband and TCP. For historical reasons 
> we are using tcp1 and not the default tcp0. No routers.
>
> I'll dive into getting more debugging info out. Any pointers on how to 
> do this efficiently would be much appreciated.
>
> Cheers,
> Hans Henrik
>
>
>
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