Refactor tsi.LogFile compaction.
Refactor tsi.LogFile compaction.

chenziliang/influxdb,vladlopes/influxdb,linearb/influxdb,vladlopes/influxdb,mark-rushakoff/influxdb,nooproblem/influxdb,influxdb/influxdb,linearb/influxdb,runner-mei/influxdb,runner-mei/influxdb,chenziliang/influxdb,influxdb/influxdb,chenziliang/influxdb,influxdb/influxdb,runner-mei/influxdb,benbjohnson/influxdb,mark-rushakoff/influxdb,influxdata/influxdb,linearb/influxdb,archsaber/influxdb,nooproblem/influxdb,mark-rushakoff/influxdb,mark-rushakoff/influxdb,vladlopes/influxdb,archsaber/influxdb,nooproblem/influxdb,mark-rushakoff/influxdb,benbjohnson/influxdb,linearb/influxdb,nooproblem/influxdb,influxdb/influxdb,linearb/influxdb,influxdb/influxdb,archsaber/influxdb,vladlopes/influxdb,benbjohnson/influxdb,archsaber/influxdb,benbjohnson/influxdb,li-ang/influxdb,runner-mei/influxdb,chenziliang/influxdb,nooproblem/influxdb,influxdata/influxdb,mark-rushakoff/influxdb,influxdb/influxdb,li-ang/influxdb