Re: what happens if a server crashes with cephfs?

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More generally, as Manuel noted you can (and should!) make use of fsync et
al for data safety. Ceph’s async operations are not any different at the
application layer from how data you send to the hard drive can sit around
in volatile caches until a consistency point like fsync is invoked.
-Greg

On Wed, Dec 7, 2022 at 10:02 PM Dhairya Parmar <dparmar@xxxxxxxxxx> wrote:

> Hi Charles,
>
> There are many scenarios where the write/close operation can fail but
> generally
> failures/errors are logged (normally every time) to help debug the case.
> Therefore
> there are no silent failures as such except you encountered  a very rare
> bug.
> - Dhairya
>
>
> On Wed, Dec 7, 2022 at 11:38 PM Charles Hedrick <hedrick@xxxxxxxxxxx>
> wrote:
>
> > I believe asynchronous operations are used for some operations in cephfs.
> > That means the server acknowledges before data has been written to stable
> > storage. Does that mean there are failure scenarios when a write or close
> > will return an error? fail silently?
> >
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