Tomasz Grabiec 4712af2c21 row_cache: Use allocating_section in row_cache::populate() ...

Cache has a tendency to eat up all available memory. It is evicted
on-demand, but this happens at certain points in time (during large
allocation requests). Small allocations which are served from small
object pools won't usually trigger this. Large allocations happen for
example when LSA region needs a new segment, eg. when row cache is
populated. If large allocations happen for certain period only inside
row_cache::update(), then eviction will not be able to make forward
progress because cache's LSA region is locked inside
row_cache::update(). While it's locked, data can't be evicted from
it.

The solution is to use allocating_section.

Fixes #376.

2015-09-21 13:25:13 +03:00

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