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Type:
Task
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Resolution: Unresolved
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Priority:
Minor - P4
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Affects Version/s: None
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Component/s: None
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None
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(copied to CRM)
Rarely, a user will run into an InvalidBSON exception when reading documents. When this happens it can be difficult to determine the problematic document(s). We should add a docs example for this scenario. One way is to use RawBSONDocument to find which specific document is invalid/corrupted:
import bson raw_coll = coll.with_options(codec_options=coll.codec_options.with_options(document_class=bson.raw_bson.RawBSONDocument)) for doc in raw_coll.find(): try: bson.decode(doc.raw) except bson.errors.BSONError as exc: print(f"Invalid document {exc}, raw bson: {doc.raw}")
RawBSONDocument lets them delay the BSON decoding so they can narrow down the problematic documents.
Or, if the InvalidBSON error is coming from database.command:
res = client.admin.command("serverStatus", codec_options=bson.raw_bson.DEFAULT_RAW_BSON_OPTIONS) try: bson.decode(res.raw) except bson.errors.BSONError as exc: print(f"Invalid BSON found in serverStatus response {exc}, raw bson: {res.raw}")