[ovs-dev] [PATCH v2 4/9] ovsdb-server: Integrate stream replay engine.

[Dumitru Ceara]

On 4/13/21 12:00 AM, Ilya Maximets wrote:
> This change adds support of stream record/replay functionality to
> ovsdb-server.
> 
> Since current replay engine doesn't work well with time-based
> events generated locally, it will work only with standalone databases
> for now (raft heavily depends on time).
> 
> To use this functionality run:
> 
>   Recording:
> 
>     # create a directory for replay files.
>     mkdir replay_dir
>     # copy current db for later use by replay
>     cp my_db ./replay_dir/my_db
>     ovsdb-server --replay-record=./replay_dir <OVSDB_ARGS> my_db
>     # connect some clients and run some ovsdb transactions
>     ovs-appctl -t ovsdb-server exit
> 
>   Replay:
> 
>     # restore db from the copy
>     cp ./replay_dir/my_db my_db.for_replay
>     ovsdb-server --replay=./replay_dir <OVSDB_ARGS> my_db.for_replay
>     At this point ovsdb-server should execute all the same commands
>     and transactions.  Since the last command was 'exit' via unixctl,
>     ovsdb-server will exit in the end.
> 
> Signed-off-by: Ilya Maximets <i.maximets at ovn.org>
> ---

Acked-by: Dumitru Ceara <dceara at redhat.com>

Regards,
Dumitru