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Posted to dev@avro.apache.org by "Alperen Koksel (Jira)" <ji...@apache.org> on 2019/10/11 08:16:00 UTC
[jira] [Created] (AVRO-2591) Getting error when reading avro
message python
Alperen Koksel created AVRO-2591:
------------------------------------
Summary: Getting error when reading avro message python
Key: AVRO-2591
URL: https://issues.apache.org/jira/browse/AVRO-2591
Project: Apache Avro
Issue Type: Bug
Components: python
Affects Versions: 1.9.1
Environment: Windows
Reporter: Alperen Koksel
I can't read avro messages in python in windows environment.
We 're using avro templates on kafka. I get the avro serialized message using kafkaconsumer but I can't deserialize using avro.io.
{code:java}
// code placeholder
schema_path = "x.avsc"
schema = avro.schema.Parse(open(schema_path).read())
def from_avro(msg):
bytes_reader = io.BytesIO(msg)
decoder = avro.io.BinaryDecoder(bytes_reader)
reader = avro.io.DatumReader(schema, schema)
user1 = reader.read(decoder)
return user1
consumer = KafkaConsumer('avro_topic',
bootstrap_servers=['0.dual.kafka.qa-us.com:9092',
'1.dual.kafka.qa-us.com:9092',
'2.dual.kafka.qa-us.com:9092'],
auto_offset_reset='earliest',
group_id='my_group',
value_deserializer=from_avro
)
for msg in consumer:
print(msg){code}
{code:java}
// code placeholder
File "C:\Users\alpl\PycharmProjects\WorkOn\venv\lib\site-packages\avro\io.py", line 240, in read_bytes
assert (nbytes >= 0), nbytes
AssertionError: -45
{code}
I found following stackoverflow post which posted more than a year ago.
[https://stackoverflow.com/questions/50106662/error-reading-avro-file-in-python/58336209#58336209]
I tried several versions of avro. Results are same.
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