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+
+Another partial batch of pure `file_meta` updates to file entities. These came
+from new purpose-specific wayback CDX fetch script, then running pdfextract
+worker.
+
+See cleanups `file_meta` document for prep details.
+
+
+## Production Commands
+
+    git log | head -n1
+    # commit 9ad198b7a1e12504e3d4718e56edd0a7e8b5e61a
+
+    export FATCAT_API_AUTH_TOKEN=[...]  # sandcrawler-bot
+
+Start with a small sample:
+
+    zcat /srv/fatcat/datasets/files_missing_sha256.file_meta.json.gz \
+        | head -n100 \
+        | ./fatcat_import.py --editgroup-description-override 'backfill of full file-level metadata for early-imported papers' file-meta -
+    # Counter({'total': 100, 'update': 94, 'skip-existing-complete': 6, 'skip': 0, 'insert': 0, 'exists': 0})
+
+Looks good, so run full batch in parallel:
+
+    zcat /srv/fatcat/datasets/files_missing_sha256.file_meta.json.gz | wc -l
+    # 345,860
+
+    zcat /srv/fatcat/datasets/files_missing_sha256.file_meta.json.gz \
+        | parallel -j8 --round-robin --pipe -q ./fatcat_import.py --editgroup-description-override 'backfill of full file-level metadata for early-imported papers' file-meta -
+
+    # HTTP response body: {"success":false,"error":"ConstraintViolation","message":"unexpected database error: duplicate key value violates unique constraint \"file_edit_editgroup_id_ident_id_key\""}
+
+    Counter({'total': 32302, 'update': 28080, 'skip-existing-complete': 3112, 'skip-no-match': 1110, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 32302, 'update': 27995, 'skip-existing-complete': 3263, 'skip-no-match': 1044, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 32303, 'update': 27997, 'skip-existing-complete': 3225, 'skip-no-match': 1081, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 32302, 'update': 28008, 'skip-existing-complete': 3218, 'skip-no-match': 1076, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 32301, 'update': 28084, 'skip-existing-complete': 3154, 'skip-no-match': 1063, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 32302, 'update': 27890, 'skip-existing-complete': 3378, 'skip-no-match': 1034, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 32301, 'update': 28095, 'skip-existing-complete': 3216, 'skip-no-match': 990, 'skip': 0, 'insert': 0, 'exists': 0})
+
+So roughly 224k updated out of ~258k attempted. Going to try again, with a shuffle, to see if more are updated:
+
+    zcat /srv/fatcat/datasets/files_missing_sha256.file_meta.json.gz \
+        | shuf \
+        | pv -l \
+        | parallel -j8 --round-robin --pipe -q ./fatcat_import.py --editgroup-description-override 'backfill of full file-level metadata for early-imported papers' file-meta -
+
+    # 345k 0:08:16 [ 697 /s]
+
+    Counter({'total': 41532, 'skip-existing-complete': 31130, 'update': 9027, 'skip-no-match': 1375, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 41529, 'skip-existing-complete': 31057, 'update': 9096, 'skip-no-match': 1376, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 41529, 'skip-existing-complete': 31015, 'update': 9190, 'skip-no-match': 1324, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 41530, 'skip-existing-complete': 31074, 'update': 9121, 'skip-no-match': 1335, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 41533, 'skip-existing-complete': 31163, 'update': 9049, 'skip-no-match': 1321, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 46145, 'skip-existing-complete': 34505, 'update': 10175, 'skip-no-match': 1465, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 46146, 'skip-existing-complete': 34551, 'update': 10101, 'skip-no-match': 1494, 'skip': 0, 'insert': 0, 'exists': 0})
+    Counter({'total': 45916, 'skip-existing-complete': 34530, 'update': 9878, 'skip-no-match': 1508, 'skip': 0, 'insert': 0, 'exists': 0})
+
+Another ~80k, so ~300k total. Good progress, though still at least a few tens
+of thousands of these to track down and update (or just remove/delete).