Tomasz Grabiec b224ff6ede Merge 'pdziepak/row-cache-wide-entries/v4' from seastar-dev.git ...

This series adds the ability for partition cache to keep information
whether partition size makes it uncacheable. During, reads these
entries save us IO operations since we already know that the partiiton
is too big to be put in the cache.

First part of the patchset makes all mutation_readers allow the
streamed_mutations they produce to outlive them, which is a guarantee
used later by the code handling reading large partitions.

(cherry picked from commit d2ed75c9ff)

2016-08-02 20:24:29 +02:00

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