AVRO FORMAT

AVRO FORMAT

Avro is a row-based storage format for Hadoop, which is widely used as a serialization platform. Avro stores the schema in JSON format, making it easy to read and interpret by any program. The data itself is stored in a binary format making it compact and efficient.

Is Avro a compressed format

Avro provides: Rich data structures. A compact, fast, binary data format. … Code generation is not required to read or write data files nor to use or implement RPC protocols.

Can we convert Avro to JSON

You can use either ConvertRecord or ConvertAvroToJSON to convert your incoming Avro data to JSON.

Why do we need Avro

While we need to store the large set of data on disk, we use Avro, since it helps to conserve space. Moreover, we get a better remote data transfer throughput using Avro for RPC, since Avro produces a smaller binary output compared to java serialization.

How do I make an Avro file

Step 1 − Create schemas. …
Step 2 − Read the schemas into your program. …
Step 3 − Serialize the data using the serialization API provided for Avro, which is found in the package org….
Step 4 − Deserialize the data using deserialization API provided for Avro, which is found in the package org.

What is the difference between Avro and JSON?

Avro has a JSON like data model, but can be represented as either JSON or in a compact binary form. … It has a direct mapping to and from JSON. It has a very compact format. The bulk of JSON, repeating every field name with every single record, is what makes JSON inefficient for high-volume usage.