During normal operation, MemSQL logs writes and DDL commands to transaction log files. Periodically, a compact snapshot of the entire database is written out to disk and the logs are truncated.
You can determine the size of the transaction log files for a given memsql node by navigating to its data directory and running
master-ip-10-0-1-214 /ebs/memsql/master-3306/data $ du -h
master-ip-10-0-1-214 /ebs/memsql/leaf-3307/data $ du -h
- Transaction log files for the master aggregator node are consuming 144KB of disk space
- Transaction log files for leaf node on port 3307 are consuming 447MB of disk space