gnomad_qc.v5.annotations.batch_fanout
=====================================


Hail Batch relay fan-out for the v5 annotation scripts.

A Query-on-Batch run has one driver, and a driver crash loses everything it was
computing. The scripts therefore cut the genome into chunks and run each chunk from
its own small, non-spot Batch job (a "relay") that starts a QoB driver inside its
container. A crash then costs one chunk, and a rerun skips the chunks that already
have a ``_SUCCESS`` marker. The orchestrator that submits the relays never starts
Hail.

Chunk outputs are stored under a hash of the chunk layout. The layout is sampled
without a fixed seed, so each regeneration moves the cut points, and a chunk left
behind by an older layout must not be taken for a finished chunk of the new one.






Module Functions
****************

.. gnomad_automodulesummary:: gnomad_qc.v5.annotations.batch_fanout

.. automodule:: gnomad_qc.v5.annotations.batch_fanout
    :exclude-members: get_script_argument_parser