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This script is used to "partition" (split up) a complete JSON dump by some key.
For example, split release dump JSON lines into separate files, one per
journal/container.
Example parititoning a sample by release type:
cat release_export_expanded_sample.json | jq .release_type -r > release_export_expanded_sample.release_type
cat release_export_expanded_sample.release_type | sort | uniq -c | sort -nr > release_export_expanded_sample.release_type.counts
cat release_export_expanded_sample.json | paste release_export_expanded_sample.release_type - | sort > out
More production-y example using ISSN-L:
# will append otherwise
rm -rf ./partitioned
# it's a pretty huge sort, will need 300+ GB scratch space? this might not scale.
zcat release_export_expanded.json.gz | jq .container.issnl -r > release_export_expanded.issnl
zcat release_export_expanded.json.gz | paste release_export_expanded.issnl - | sort | ./partition_script.py
# for verification/stats
cat release_export_expanded.issnl | sort | uniq -c | sort -nr > release_export_expanded.issnl.counts
# cleanup
rm release_export_expanded.issnl
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