title: Too much disk space used by Apache Kudu for WALs
body: <p>I have a <code>hive table</code> that is of 2.7 MB (which is stored in a parquet format). When I use <code>impala-shell</code> to convert this hive table to <code>kudu</code>, I notice that the <code>/tserver/</code> folder size increases by around 300 MB. Upon exploring further, I see it is the <code>/tserver/wals/</code> folder that holds the majority of this increase. I am facing serious issues due to this. If a 2.7 MB file generates a 300 MB WAL, then I cannot really work on bigger data. Is there a solution to this? </p>
  
  <p>My <code>kudu</code> version is <code>1.1.0</code> and impala is <code>2.7.0</code>. </p>