[infinispan-dev] Throwing an IllegalStateException subclass when cache/cachemanager stopping/stopped Re: ISPN-4717

[William Burns]

+1

Actually while looking at [1] I encountered the same error you were
getting (not the same as the JIRA itself) and thought about how we
could remedy that issue on a get as well.  Being able to detect this
new CacheStoppingException would allow for some options.

[1] https://issues.jboss.org/browse/ISPN-4706

 - Will

On Thu, Sep 11, 2014 at 10:51 AM, Galder Zamarreño <galder at redhat.com> wrote:
> Hi,
>
> Re: https://issues.jboss.org/browse/ISPN-4717
>
> While investigating [1], I discovered that when clients send operations to terminated/terminating caches, these are not recovered from. To make this easier to handle, I’d like to change cache/cachemanager from throwing IllegalStateException to throwing a new exception that extends IllegalStateException, e.g. CacheStopping/StoppedException or similar. By making it IllegalStateException, it should create minimal disruption for anyone expecting IllegalStateException, although I don’t think this is documented per se. This, together with a HR error code that accompanies it, should make it easier for clients to deal with it and retry.
>
> A new error code will also be added for suspected caches since these are still propagated to clients. Up until know, this has been dealt with by checking the error message, but that could break easily, so again, the later stages of HR 2.0 protocol implementation is good moment for implement these two things.
>
> If anyone has any objections, speak up :)
>
> Cheers,
>
> [1] https://issues.jboss.org/browse/ISPN-4707
> --
> Galder Zamarreño
> galder at redhat.com
> twitter.com/galderz
>
>
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