| Variable | COMPRESSION_TYPE | |
| Description | Sets default compression levels for segments and minisegments | |
| Value Type | string | |
| Default | high | |
| Valid Values | extreme | Compress using Zstd in the digest pipeline; use Zstd when merging segments. |
fast | Compress using LZ4 in the digest pipeline; use LZ4 when merging segments. | |
high | Compress using LZ4 in the digest pipeline; use Zstd when merging segments. | |
Sets the compression level in the digest and segment pipelines. Extreme is not recommended as the extra compression is not worth the extra CPU time spent.
ini
COMPRESSION_TYPE=high
COMPRESSION_LEVEL=9
COMPRESSION_LEVEL_MINI=0
#VALUE_DEDUP_LEVEL=COMPRESSION_LEVEL
Recommended setting depends on the hardware and use case. The rule of
thumb is that high provides a two-times compression ratio over fast at the
cost of using more CPU time for decompressing while searching. See also
VALUE_DEDUP_LEVEL.