I lean towards the documentation approach vs complicating the
implementation.
For me personally: I regularly use shell commands to operate on snapshots.
That includes listing them. I probably should use nodetool for it all
instead though.
Jordan
On Fri, Aug 9, 2024 at 08:09 Štefan Miklošovič
wr
I understand and agree. It is just that it would be cool if we avoided the
situation when there is a figurative ABC company which has these "bash
scripts removing snapshots from cron by rm -rf every second Sunday at 3:00
am" because "that was their workflow for ages".
I am particularly sensitive t
If we have the documentation in place, we can then consider the cache to
be the master copy of metadata, and rely on it to be always accurate and
up to date. If someone deletes the snapshot files from filesystem, they
can't complain about Cassandra stopped working correctly - which is the
same
It is also worth to say that there are plans to include more snapshot
metadata in the future, for example, it would be nice if we had a way to
verify the consistency of a snapshot. That leads to a manifest.json file
which would contain checksums to each file of a snapshot and similar. The
result of
We could indeed do that. Does your suggestion mean that there should not be
a problem with caching it all once explicitly stated like that?
On Fri, Aug 9, 2024 at 12:01 PM Bowen Song via dev
wrote:
> Has anyone considered simply updating the documentation saying this?
>
> "Removing the snapshot
Has anyone considered simply updating the documentation saying this?
"Removing the snapshot files directly from the filesystem may break
things. Always use the `nodetool` command or JMX to remove snapshots."
On 09/08/2024 09:18, Štefan Miklošovič wrote:
If we consider caching it all to be too
If we consider caching it all to be too much, we might probably make
caching an option an admin would need to opt-in into? There might be a flag
in cassandra.yaml, once enabled, it would be in memory, otherwise it would
just load it as it was so people can decide if caching is enough for them
or th
