Advanced ORC properties
Usually, you do not need to modify ORC properties, but occasionally, Hortonworks Support advises making such changes.
| Key | Default Setting | Notes |
|---|---|---|
| orc.compress | ZLIB | Compression type (NONE, ZLIB, SNAPPY). |
| orc.compress.size | 262,144 | Number of bytes in each compression block. |
| orc.stripe.size | 268,435,456 | Number of bytes in each stripe. |
| orc.row.index.stride | 10,000 | Number of rows between index entries (>= 1,000). |
| orc.create.index | true | Sets whether to create row indexes. |
| orc.bloom.filter.columns | -- | Comma-separated list of column names for which a Bloom filter must be created. |
| orc.bloom.filter.fpp | 0.05 | False positive probability for a Bloom filter. Must be greater than 0.0 and less than 1.0. |