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From Dmitriy Setrakyan <dsetrak...@apache.org>
Subject Re: IgniteSet implementation: changes required
Date Mon, 12 Feb 2018 23:14:54 GMT
On Fri, Feb 9, 2018 at 6:26 PM, Andrey Kuznetsov <stkuzma@gmail.com> wrote:

> Hi all,
>
> Current set implementation has significant flaw: all set data are
> duplicated in onheap maps on _every_ node in order to make iterator() and
> size(). For me it looks like simple yet ineffective implementation.
> Currently, these maps are damaged by checkpointing/recovery, and we could
> patch them somehow. Another future change to Ignite caches can damage them
> again. This looks fragile when datastructure is not entirely backed by
> caches. Pavel's proposal seems to be a reliable solution for non-collocated
> sets.
>

I would agree, but I was under an impression that non-collocated sets are
already implemented this way. Am I wrong?

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