triggerTSDBCompaction#

swordfish.function.triggerTSDBCompaction()#

Use this command to manually trigger the compaction of TSDB level files at specific level for optimal reading performance.

Note

The compaction of level 3 files can only be performed when configuration parameter allowTSDBLevel3Compaction is set to true and for tables with keepDuplicates=FIRST/LAST specified.

Parameters:

  • chunkId (Constant) – A STRING scalar indicating the chunk ID.

  • level (Constant, optional) –

    Specify at which level the compaction is triggered, by default DFLT. It can be an integer in [-1,3].

    • If level is an integer in [0,3], compaction is triggered at the specified level.

    • When level = -1, all level files are compacted into a single level file.