One thing I am not really sure is if upgrading sstables is really a
must after the Cassandra 5 upgrade.

Thanks

Luciano Greiner


On Sun, Mar 16, 2025 at 2:33 PM Paul Chandler <p...@redshots.com> wrote:
>
> Yes, that should sort it out.
>
> Regards
>
> Paul
> Sent from my iPhone
>
> > On 16 Mar 2025, at 18:34, Luciano Greiner <luciano.grei...@gmail.com> wrote:
> >
> > Thank you Paul!
> >
> > So should I restart the nodes with UPGRADING mode and run the
> > upgradesstables again?
> >
> > Thank you!
> >
> > Luciano Greiner
> > (54) 996309845
> >
> >> On Sun, Mar 16, 2025 at 2:58 AM Paul Chandler <p...@redshots.com> wrote:
> >>
> >> Hi Luciano,
> >>
> >> It sounds like you could have the storage_compatibility_mode set to the 
> >> default CASSANDRA_4 value, check this and change it to UPGRADING or NONE.
> >>
> >> Full details can be found in the Cassandra.yaml 
> >> https://cassandra.apache.org/doc/latest/cassandra/managing/configuration/cass_yaml_file.html#storage_compatibility_mode
> >>
> >> Regards
> >>
> >> Paul
> >>
> >> Sent from my iPhone
> >>
> >> On 16 Mar 2025, at 07:48, Luciano Greiner <luciano.grei...@gmail.com> 
> >> wrote:
> >>
> >> Hi,
> >>
> >> We recently upgraded our clusters from 4.1.5 to 5.0.3 and now I’m
> >> trying to migrate SSTable files to the new oa-* format, but it’s not
> >> working as I expected.
> >>
> >> What I Tried:
> >>
> >> nodetool flush + upgradesstables → Completed quickly with success
> >> messages, but no SSTables were rewritten.
> >> nodetool upgradesstables -a → Triggered compactions, but new SSTables
> >> are still in the old nb-* format.
> >>
> >> What’s the recommended approach to ensure SSTables migrate to oa-*? Is
> >> it really necessary?
> >>
> >> Thanks!
> >>
> >> Luciano
>

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