BTW for anyone who hits this issue and needs an immediate solution, here's 
how I fixed it within my own project. Couldn't quite subclass as I 
mentioned earlier, due to LocalSnapshotStore being private, so I made a 
copy and tweaked as required to support timestamp handling in snapshot 
criterias:

https://github.com/stephenmcd/curiodb/commit/d034599d1f38077106c87a69b543a479c24efcb1

On Monday, 20 July 2015 11:36:54 UTC+10, Stephen McDonald wrote:
>
> Hi Hakkers,
>
> I came across some surprising behaviour with the LocalSnapshotStore - I 
> was trying to implement what I imagine would be a common pattern: remove 
> older snapshots each time a new snapshot is created. I did this with 
> `deleteSnapshots(SnapshotSelectionCriteria(meta.sequenceNr, meta.timestamp 
> - 1))`, only to find it would delete all snapshots for the given 
> persistence ID and sequenceNr, regardless of timestamp given.
>
> After staring at my own code for a very long time, I looked at the source 
> for LocalSnapshotStore and found that it seems to ignore timestamps 
> altogether:
>
>
> https://github.com/akka/akka/blob/master/akka-persistence/src/main/scala/akka/persistence/snapshot/local/LocalSnapshotStore.scala#L161
>
> I initially thought this to be a bug, but looking at the history it 
> appears to have been intentionally removed:
>
>
> https://github.com/akka/akka/commit/63baaf1b2b3d0fc6c1971307fd1e66d74106c968
>
> I was able to fix this with a minor change in the attached diff. Is there 
> any interest in this fix? Or am I naive to some history around this? 
>
> I guess if it's the intended behaviour, I can easily enough subclass it 
> and override the relevant bits to take timestamps into account - does that 
> sound reasonable?
>
> Thanks for Akka, it's amazing!
>
> -- 
> Stephen McDonald
> http://jupo.org
>  

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