avro Questions
4
I want to get started with using Avro with Map Reduce. Can Someone suggest a good tutorial / example to get started with. I couldnt find much through the internet search.
2
I am new to avro and am trying to implement avro schema serialization in a new project. I saw that there are two different NuGet packages available and was wondering what the differences between bo...
1
I have implemented Avro schema in node.js with schema being sent with the message payload. And it is working fine. I am looking if there is any way I can use schema-registry with Kafka-node module....
Dill asked 25/10, 2017 at 10:48
2
In python 2.7, using Avro, I'd like to encode an object to a byte array.
All examples I've found write to a file.
I've tried using io.BytesIO() but this gives:
AttributeError: '_io.BytesIO' obje...
Recursion asked 12/5, 2014 at 16:48
2
I am building a pipeline that reads Avro generic records. To pass GenericRecord between stages I need to register AvroCoder. The documentation says that if I use generic record, the schema argument...
Dotson asked 13/12, 2018 at 14:53
0
My application has been using json schema (org.everit.json.schema.Schema ) to validate JSON messages whether they comply to a particular format. We are now thinking of moving to the Avro sche...
Galah asked 16/9, 2019 at 23:48
2
Solved
Im trying to merge avro files into one big file, the problem is concat command does not accept the wildcard
hadoop jar avro-tools.jar concat /input/part* /output/bigfile.avro
I get:
Exception...
Avon asked 18/1, 2016 at 14:15
1
Solved
I write a sample with avro library. It generate java class source code User from schema record User.
I want to encode User to byte[], and decode byte[] to User.
When decoding, I've got error mess...
1
Solved
I am new to Avro and trying to define a schema. Wondering if I am trying to default a value to null, should it be:
a. "default": null
b. "default": "null"
Does it matter what the data type is? ...
1
I'm loading data from HDFS to mySQL using SQOOP, in this data one record has got more than 70 fields, making it difficult to define the schema while creating the table in RDBMS.
Is there a way to ...
0
As a user, the requirement is clear. I have a record with an Avro Logical Type Decimal(20,3) and want to put a value into it. So I expect to write
genericrecord.put("Quantity", 4.0);
genericrecord...
6
Solved
I can't find a way to deserialize an Apache Avro file with C#. The Avro file is a file generated by the Archive feature in Microsoft Azure Event Hubs.
With Java I can use Avro Tools from Apache to...
3
Looking for a concise example on how to read and write Map<String, Object> from/to parquet file in Java or Scala?
Here is expected structure, using com.fasterxml.jackson.databind.ObjectMappe...
1
Solved
While running kafka consumer, i am getting following error:
Caused by: org.apache.kafka.common.errors.SerializationException: Error deserializing Avro message for id 13
Caused by: org.apache.avro....
Kirkpatrick asked 18/7, 2019 at 12:36
2
Solved
I would like to customize the naming strategy of the Avro schema subjects in Spring Cloud Stream Producers, Consumers and KStreams.
This would be done in Kafka with the properties key.subject.name...
Sharilyn asked 24/4, 2019 at 9:23
2
Solved
I have some json data that looks like this:
{
"id": 1998983092,
"name": "Test Name 1",
"type": "search string",
"creationDate": "2017-06-06T13:49:15.091+0000",
"lastModificationDate": "2017-...
Mallen asked 13/8, 2017 at 16:24
1
Solved
I have a spark dataframe that I want to save as parquet then load it using the parquet-avro library.
There is a timestamp column in my dataframe that is converted to a INT96 timestamp column in pa...
Offhand asked 13/6, 2019 at 14:16
1
I'm writing a mapReduce Job to read and process an Avrofile.
The input file is a Avro
The output format is Avro
When I'm executing the Mapreduce Job, I'm getting the following exception in the red...
1
from python prompt:
>>> import avro
>>> import avro.schema
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module name...
Messiaen asked 27/3, 2018 at 12:46
3
Solved
With the Avro Java API, I can make a simple record schema like:
Schema schemaWithTimestamp = SchemaBuilder
.record("MyRecord").namespace("org.demo")
.fields()
.name("timestamp").type().longTyp...
2
Reading https://avro.apache.org/docs/current/spec.html it says a schema must be one of:
A JSON string, naming a defined type.
A JSON object, of the form:
{"type": "typeName" ...attributes...} whe...
Overact asked 19/10, 2017 at 21:51
3
Solved
I have a GenericRecord with nested fields. When I use genericRecord.get(1) it returns an Object that contains the nested AVRO data.
I want to be able to access that object like genericRecord.get(...
1
I have been working with apache avro lately, where i was writing the avro schema files by myself, now i am dealing with other developers schema and looking for a tool to visualize the schema to sav...
Agrigento asked 6/3, 2016 at 16:14
3
I cloned a project from github and now have it open as a project in IntelliJ.
The project is written in Scala.
The project depends on some objects defined in an avro schema that is in another pr...
Erleena asked 10/12, 2015 at 18:35
3
Initial situation
AVRO serialized events are sent to an azure event hub. These events are stored persistently using azure event hubs capture feature. Captured data, along with event hub metadata, ...
Supermarket asked 7/11, 2018 at 21:6
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