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use forkserver to avoid HDF5 deadlocks #217

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Merged
mirzaees merged 1 commit into from
Apr 14, 2026
Merged

use forkserver to avoid HDF5 deadlocks #217

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6 changes: 4 additions & 2 deletions src/opera_utils/disp/rebase_reference.py
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Original file line number Diff line number Diff line change
Expand Up @@ -631,7 +631,9 @@ def main(

# Transfer the quality layers (no rebasing needed)
all_products = DispProductStack.from_file_list(nc_files)
with multiprocessing.Pool(num_workers) as pool:
# Use 'forkserver' to avoid h5py/HDF5 mutex deadlocks that occur with 'fork'
mp_ctx = multiprocessing.get_context("forkserver")
with mp_ctx.Pool(num_workers) as pool:
list(
pool.starmap(
extract_quality_layers,
Expand Down Expand Up @@ -664,7 +666,7 @@ def main(
futures: set[Future] = set()
mask_dataset = QualityDataset.RECOMMENDED_MASK if apply_mask else None

with ProcessPoolExecutor(num_workers) as pool:
with ProcessPoolExecutor(num_workers, mp_context=mp_ctx) as pool:
# Submit time series rebase function
futures.add(
pool.submit(
Expand Down