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Comment by darklajid | Hacker News Reader

Can you look at my other comment in this thread about MAM seemingly not being available for prosody < 0.10? What did I misunderstand? Is the documentation unclear, can you clarify the situation? Or .. are you running a 0.10 snapshot?

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I run 0.9, and the documentation says

   0.9  Works

and indeed it does (I am using it with the default storage backend).

Based on your statement I asked in the (excellent, friendly) prosody chat room. So, that mod_mam works for 0.9 because (from the mod_mam documentation) 'If no archive-capable storage backend can be opened then an in-memory one will be used as fallback.'

As far as I understand this means that a service restart (or a crash) wipes your archive and I assume you won't be able to migrate your archive between versions either?

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