[AVRO-1304] Python Avro match_schemas called redundantly

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.7.4
• Component/s: python
• Assignee: Unassigned
• Reporter: Uri Laserson
• Created: 20/Apr/13 00:26
• Updated: 23/Apr/13 20:18

Description

DatumReader.match_schemas(writers_schema, readers_schema) is called on every single read from the DatumReader. However, for almost every read, the schemas used are the object members self.writers_schema and self.readers_schema. match_schemas should be checked only once in this case, and only when the object members are modified. This takes up 20% of my parse time upon profiling.