Summary:
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There could be cases, albeit unlikely, that logs could be appended for the current state indefintely that would ultimate fail due to not having enough memory.
This change puts a cap on that.
Reviewed By: mweststrate
Differential Revision: D42313904
fbshipit-source-id: 7fd96be822c9427720bccb41c6c32a39213c7652
a040fb8d4e