Configuring the Parquet Block Size
The default value for the store.parquet.block-size
parameter is
268435456 (256 MB), the same size as file system chunk sizes. In
previous versions of Drill, the default value was 536870912 (512 MB).
If you change the file system chunk size, change the Parquet
block size to match using the ALTER SYSTEM or SET
commands, as shown:
ALTER SYSTEM SET `store.parquet.block-size` = <value>;
[ALTER SESSION] SET `store.parquet.block-size` = <value>
Alternatively, you can override the default setting in the
<DRILL_HOME>/conf/drill-override.conf
file, as
shown:drill.exec: {
...
options.store.parquet.block-size = 268435456
}
For information about setting the file system chunk size, see Setting Chunk Size.