Disk space is allocated for uncompressed block size

[thilinamb]

This may cause underutilized disk spaces.

2020-03-27 00:42:32 DEBUG NodeStore:225 - Processing end session request. Dataset id: noaa_2015_jan, entity id:ff5m6, session id: 1
2020-03-27 00:42:32 DEBUG RoundRobinAllocationPolicy:24 - Chose path: /s/lattice-80/b/nobackup/granules/thilinab/sustain, requested space: 332, available space: 2076299468468
2020-03-27 00:42:32 DEBUG SSTableWriter:40 - Updated block index. Block Id: 0, Offset: 0
2020-03-27 00:42:32 DEBUG SSTableWriter:90 - Stored the final block of the SSTable on disk. Block Id: 0, block size: 332
2020-03-27 00:42:32 DEBUG SSTableWriter:107 - Completed moving a MemTable to SSTable on disk. Uncompressed size: 332, compressed size: 253