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Bob Briody commented on TINKERPOP3-932:
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I don't think it is very common to have intermediate commit()'s, and if you do,
you should understand that. So to optimize for the common use case, I think
that rolling bindings back by default is the most intuitive behavior.
Just to add another option for completeness (which honestly I'm not even a fan
of)... It might be possible to specify how bindings are handled when the
cancellation is issued. Something like {{rollbackBindings: true/false}}.
> Add ability to cancel script execution associated with a Gremlin Server
> Session
> --------------------------------------------------------------------------------
>
> Key: TINKERPOP3-932
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-932
> Project: TinkerPop 3
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.0.2-incubating
> Reporter: Zachary Kurey
> Assignee: stephen mallette
>
> Currently with a {{SessionedClient}} there is no way to cancel a long running
> script and the client has to depend on Gremlin Server side configured
> timeouts before they can execute another script associated with the same
> session id.
> There is a way we can forcefully close a session from the client side, or
> just close the entire Gremlin client. But it would be useful for client side
> applications to be able to cancel script execution, have its intermediate
> effects rolled back, and be able to continue interacting with the session
> without losing session variable state maintained on the Gremlin server side.
> Unsure where this should live at an API level, since canceling by session id
> isn't relevant for all {{Client}} implementations. If somehow when the
> {{CompletableFuture<ResultSet>}} returned by {{Client.submitAsync}} could do
> this when the {{Future}} is canceled, that would be a nice way to bridge
> implementations.
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