What is Apache Beam?

I was going through the Apache posts and found a new term called Beam. Can anybody explain what exactly Apache Beam is? I tried to google out but unable to get a clear answer.

Explain Apache Beam python syntax

I have read through the Beam documentation and also looked through Python documentation but haven't found a good explanation of the syntax being used in most of the example Apache Beam code. Can...

What are the benefits of Apache Beam over Spark/Flink for batch processing?

Apache Beam supports multiple runner backends, including Apache Spark and Flink. I'm familiar with Spark/Flink and I'm trying to see the pros/cons of Beam for batch processing. Looking at the Beam...

run apache beam on apache flink

I want to run a Python code using Apache beam on Apache Flink. The command that the apache beam site for launching Python code on Apache Flink is as follows: docker run --net=host...

Apache Beam euphoria Issue

I have built the apache beam un-official version from github.com/apache/beam their was a new class to use DataSet Facility euphoria but after Putting all the jar in .m2 repository on my PC i am...

pip search showed apache-beam 2.9 but pip install apache-beam only get apache-beam2.2 installed

In my fresh new virtual environment. I run pip search apache-beam I got apache-beam (2.9.0) Then I run pip install apache-beam pip list But I got apache-beam 2.2 installed, instead of...

Spring with Apache Beam

I want to use Spring with Apache Beam that will run on Google Cloud Data flow Runner. Dataflow job should be able to use Spring Runtime application context while executing the Pipeline steps. I...

Difference between Apache Beam and Apache Nifi

What are the use cases for Apache Beam and Apache Nifi? It seems both of them are data flow engines. In case both have similar use case, which of the two is better?

Apache Beam Gradle build

I was able to build Apache beam new version using pom but while using gradle I am facing issues with it like repository issues and I am also not known about after build our jar goes to which place...

Apache Beam java Testing ExpectedLogs Maven

I'm using apache beam with Maven and in the pom.xml the dependency is <dependency> <groupId>org.apache.beam</groupId> ...

Apache Beam - DataStoreIO.v1().write() namespace?

How do we specify namespace for datastore in apache beam datastore api when writing the entities into Datastore? I see the apache beam sdk api has DataStoreIO.v1.read().withNamespace(). How do we...

Left join operation in apache beam

I have two datasets with a common key column and I want to perform left join operation. Is there any corresponding function in apache beam that performs the left join operation in apache beam ?

Apache Beam over Apache Kafka Stream processing

What are the differences between Apache Beam and Apache Kafka with respect to Stream processing? I am trying to grasp the technical and programmatic differences as well. Please help me understand...

Using PANDAS with Apache Beam

I am new to Apache Beam and just started working on it with Python SDK. Regarding Apache beam I know high level of Pipelines, Pcollections, Ptransforms, ParDo and DoFn. In my current project...

NotImplementedError apache beam python

I'm writing a json to gcs using apache beam. But encountered the following error NotImplementedError: offset: 0, whence: 0, position: 50547, last: 50547 [while running 'Writing new data to...

How to use Pandas in apache beam?

How to implement Pandas in Apache beam ? I cannot perform left join on multiple columns and Pcollections does not support sql queries. Even the Apache Beam document is not properly framed. I...

Accessing BigQuery table through Apache Beam

I am retrieving the schema of BigQuery tables using DataFlow v1.9 using below code: Bigquery bigQueryClient=Transport.newBigQueryClient(options.as(BigQueryOptions.class)).build(); Tables...

Performance of Apache Beam vs Apache Spark

If any one has compared performance of Apache Beam vs Apache Spark code, could you please share results?

unable to install apache-beam on macOS

I'm trying to install apache-beam on my python vertical environment but it didn't work! I followed the steps provided by apache beam org [Apache Beam Python SDK Quickstart], but when executing...

Left join in apache beam

Which is the better way to left join following Pcollection in apache beam? pcoll1 = [('key1', [[('a', 1)],[('b', 2)], [('c', 3)], [('d', 4)],[('e',...

Can Apache beam support Parallel Sorting?

Could you please tell me if I can achieve parallel sorting using Apache beam? For the documentation it is given that Apache Beam can sort using a single machine. Is there any way to achieve...

Joining rows in Apache Beam

I'm having trouble understanding if the joins in Apache Beam (e.g. http://www.waitingforcode.com/apache-beam/joins-apache-beam/read) can join entire rows. For example: I have 2 datasets, in CSV...

How Apache Beam manage kinesis checkpointing?

I have a streaming pipeline developed in Apache Beam (using Spark Runner) which reads from kinesis stream. I am looking out for options in Apache Beam to manage kinesis checkpointing (i.e. stores...

Apache beam, FileBasedSink.CompressionType.GZIP is deprecated?

I have code in my apache beam 2.2.0 pipeline which is responsible for writing a json file to Google Cloud Storage. The code is as follows: results.apply(ParDo.of(new TableRowToString())) ...

Apache beam PubSubIO write

Unable to write to PubSub using Apache Beam JavaSDK. I am trying to use beam to read from PubSub, do processing and then write the data to a PubSub topic, but i am unable to find working example...

Apache Beam - JSON grouping

I'm new to apache beam in python3, I have to build certain pipeline with it, and I have one last step that I am clueless how to perform. I have transformed and clean JSON elements per line, and I...

Apache Beam pipeline with JdbcIO

I have an Apache Beam pipeline which tries to write to Postgres after reading from BigQuery. The code uses JdbcIO connector and Dataflow runner. I am using Python 3.8.7 and Apache Beam 2.28.0 I...

Nesting pipelines in apache beam

I am looking do to the following with apache beam. Specifically pre-processing for a tensorflow neural network. for each file from a folder. for each line from a file process line to 1d...

Apache beam BigQuery view

In GCP BigQuery, you can create a view of a table. Documentation here: https://cloud.google.com/bigquery/docs/views. I would like to know whether it is possible to create a view in BigQuery via...

Gamma Distribution in Apache beam

I'm trying to implement Gamma Distribution in apache beam. First,I'm reading a CSV file CSV file using the TextIO class of Apache beam : Pipeline p = Pipeline.create(); ...