[AVRO-1200] DatumWriter can write malformed data if collection is modified during write

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.2
• Fix Version/s: 1.7.3
• Component/s: java
• Hadoop Flags: Reviewed
• Assignee: Thomas White
• Reporter: Thomas White
• Created: 08/Nov/12 21:54
• Updated: 10/Dec/12 17:57
• Resolved: 09/Nov/12 10:57

Description

GenericDatumWriter's writeArray and writeMap methods write the size of the collection/map before writing the entries, so it's possible that the sizes will not match, which can cause data corruption and read failures like AVRO-1198.

Issue Links

• is related to: AVRO-1198 Malformed Avro data may cause confusing ArrayIndexOutOfBoundsException