avro Questions
3
What are the common practices to write Avro files with Spark (using Scala API) in a flow like this:
parse some logs files from HDFS
for each log file apply some business logic and generate Avro f...
Facetious asked 23/11, 2015 at 18:53
1
I'm trying to use Apache Avro to enforce a schema on data exported from Elastic Search into a lot of Avro documents in HDFS (to be queried with Drill). I'm having some trouble with Avro defaults
G...
Staple asked 3/3, 2016 at 16:50
0
I have a file in Azure Storage which is zipped and then encoded by Avro as Blob. I read it and decode it as you see in the following code:
public static int decodeAvroFile(String avroFile) throws ...
1
I am trying to read avro files using python.
I installed Apache Avro successfully (I think I did because I am able to "import avro" in the python shell) following the instruction here
https://avr...
Iodize asked 22/11, 2016 at 1:35
1
Solved
I am trying to register an AVRO schema to Schema Registry. The schema contains a record and some fields. I post the schema as JSON to Schema Registry REST API and although the JSON look fine the se...
Daley asked 21/10, 2017 at 16:30
1
I'm getting a StackOverflowError from inside the createDataFrame call in this example. It originates in scala code involving java type inferencing which calls itself in an infinite loop.
final Eve...
Askja asked 10/4, 2016 at 16:17
1
Solved
We are writing a custom sink connector for writing content of a topic with avro messages to a CEPH storage.
To do this we are provided with SinkRecords which have a Kafka Connect schema which is a...
Muffler asked 19/9, 2017 at 13:6
1
Solved
I am experiencing a reproducible error while producing Avro messages with reactive kafka and avro4s. Once the identityMapCapacity of the client (CachedSchemaRegistryClient) is reached, serializatio...
Klausenburg asked 30/8, 2017 at 15:7
1
Is there a means to use Avro on the client side through javascript and REST or RPC or websocket?
If so, with with js library?
Imparipinnate asked 13/8, 2015 at 14:26
2
Is there any sample code in C# for reading the Azure Event Hub Archive files (Avro format)?
I am trying to use the Microsoft.Hadoop.Avro library. I dumped the schema out using a java avro tool whi...
Loment asked 16/5, 2017 at 6:8
2
Solved
In reviewing examples I see alot of this:
FlinkKafkaConsumer08<Event> kafkaConsumer = new FlinkKafkaConsumer08<>("myavrotopic", avroSchema, properties);
I see that they here already ...
Rancho asked 21/12, 2016 at 4:18
0
In Java Avro, how do I parse data1, data2 and data3 below to a GenericRecord.
//Schema
{
"type": "record", "name": "user",
"fields": [
{"name": "name", "type": "string"},
{"name": "colour", "t...
0
Parquet ClassCastException:parquet.io.MessageColumnIO cannot be cast to parquet.io.PrimitiveColumnIO
I try to write a simple Scala program that dumps data to Parquet files into HDFS.
I create an Avro schema, initialize a ParquetWriter with this schema, map my records to GenericRecords following ...
3
I am trying to use the Python Avro library (https://pypi.python.org/pypi/avro) to read a AVRO file generated by JAVA. Since the schema is already embedded in the avro file, why do I need to specify...
1
I am using Avro 1.8.1 and trying to parse the following schema_2. Can you please help?
val schema: Schema = new Schema.Parser().parse(StrSchema)
I am getting following exception.
Exception in ...
Shayneshays asked 13/2, 2017 at 0:53
2
val file = File.createTempFile("temp", ".avro")
val schema = new Schema.Parser().parse(st)
val datumWriter = new GenericDatumWriter[GenericData.Record](schema)
val dataFileWriter = new DataFileWrit...
Neoterism asked 13/6, 2017 at 14:47
1
The avro specification allows using different write and read schema provided they match. The specification further allows aliases to cater for differences between the read and write schema. The fol...
Slusher asked 11/6, 2017 at 19:7
4
I have a spark 2.0 application that reads messages from kafka using spark streaming (with spark-streaming-kafka-0-10_2.11).
Structured streaming looks really cool so I wanted to try and migrate th...
Vltava asked 20/11, 2016 at 15:40
2
I enabled Kryo serialization for my Spark job, enabled the setting to require registration, and ensured all my types were registered.
val conf = new SparkConf()
conf.set("spark.serializer", "org.a...
Summary asked 9/1, 2017 at 17:5
2
I have the JSON file & JSON Schema to be parsed into the AVRO Schema. I am little bit confused, do i have to write the manual AVRO schema using the data types defined in AVRO documentation. Or ...
2
I have data in Avro format in HDFS in file paths like: /data/logs/[foldername]/[filename].avro. I want to create a Hive table over all these log files, i.e. all files of the form /data/logs/*/*. (T...
Dongdonga asked 26/6, 2014 at 18:59
2
Solved
I just want to import avro in python3. And I get error just import avro schema.
import os
import string
import sys
from avro import schema
...
# others are not matter
And I can only read
Trace...
Theophany asked 29/1, 2017 at 18:21
2
Solved
I'm trying to use this avro shcema
{
"namespace": "nothing",
"name": "myAvroSchema",
"type": "record",
"fields": [
{
"name": "checkInCustomerReference",
"type": "string"
},
{
"name": "cu...
Stringendo asked 20/4, 2017 at 7:39
3
This is somewhat of a shot in the dark in case anyone savvy with the Java implementation of Apache Avro is reading this.
My high-level objective is to have some way to transmit some series of avro...
Gabbi asked 24/9, 2011 at 8:42
1
Perhaps this question may seem a bit abstract, here it is:
val originalAvroSchema : Schema = // read from a file
val rdd : RDD[GenericData.Record] = // From some streaming source
// Looking for a...
Deci asked 29/3, 2016 at 18:0
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