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Questions tagged [apache-beam-internals]

29 questions
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I am getting this error Getting SEVERE Channel ManagedChannelImpl{logId=1, target=bigquerystorage.googleapis.com:443} was not shutdown properly

I have created a beam script to get data from kafka and push it to BigQuery using Apache Beam. For now I am using java-direct-runner and just need to push data to my bigquery. This is my code:- package com.knoldus.section8; import…
Niraj Kumar
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In Apache Beam, what is the Control service and Provision service?

In the Apache Beam Fn API, what are the responsibilities of the Control service and Provision service? How do they interact with the SDK Harness Container? Does the Control/Provision service contact the SDK Harness Container (to control, or…
cozos
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Using Numba in Flink Python UDFs

I'd like to use a Python library (pyod, latest) in a UDF that has a dependency on Numba (>= 0.50). I created an Aggregation UDF in Python and I am not new to the concept. I got an error during while starting the job immediately after job…
Metehan Yıldırım
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Apache Beam update current row values based on the values from previous row

Apache Beam update values based on the values from the previous row I have grouped the values from a CSV file. Here in the grouped rows, we find a few missing values which need to be updated based on the values from the previous row. If the first…
User27854
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Error in running Apache Beam Python SplittableDoFn

Error encountered while trying pubsub io > splittable dofn RuntimeError: Transform node AppliedPTransform(ParDo(TestDoFn)/ProcessKeyedElements/GroupByKey/GroupByKey, _GroupByKeyOnly) was not replaced as expected. Can someone help me with…
max_new
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How beam estimate watermarks

I am a beginner in Apache Beam and very curious to understand the internals of Apache Beam. I read some pages and watched some videos and all are explaining how watermarks help to handle the readiness and obsolescence of an infinite…
arora
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apache_beam, read data from GCS buckets during pipeline

I have a pub/sub topic, which gets message as soon as a file is created in the bucket, with the streaming pipeline, I am able to get the object path. Created file is AVRO. Now in my pipeline I want to read all the content of the different files,…
Daljeet Singh
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In Apache Beam's SparkRunner, how does the DOCKER environment_type affect an existing Spark cluster?

In Apache Beam's Spark documentation, it says that you can specify --environment_type="DOCKER" to customize the runtime environment: The Beam SDK runtime environment can be containerized with Docker to isolate it from other runtime systems. To…
cozos
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Remove duplicates on column based in apache beam java sdk

How do I remove multiple occurrences of row based on SessionId in apache beam java skd. I have tried with Distinct as well as Deduplicate but that takes entire row based and removes. import org.apache.beam.sdk.io.TextIO; import…
Ashok
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Difference between a pane and window apache beam

What's the difference between pane and window? The incoming elements are grouped into windows. Then what does a pane contain? I took the following code from beam docs .of(new DoFn() { public void processElement(@Element String…
bigbounty
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Apache Beam- Filter the Lines and select only those lines having specific keywords and store these lines in a Pandas DataFrame

I have a text file having 10000 log lines like 2022-12-27T00:00:00+00:00 VM_DEV02 sshd[25690]: pam_unix(sshd:session): session closed for user USER7 Main tasks are: Filter only those lines having-['unauthorized','error','kernel error','OS…
samh125679
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In GCP Dataflow/Apache Beam Python SDK, is there a time limit for DoFn.process?

In Apache Beam Python SDK running on GCP Dataflow, I have a DoFn.process that takes a long time. My DoFn takes a long time for reasons that are not that important - I have to accept them due to requirements out of my control. But if you must know,…
cozos
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Find error record file while processing too many files in same bucket in apache beam java sdk

I have 20 files (csv files) in the same bucket. I am able to read all the file in one go and load on to bigquery. But when there is some data type mismatches, im able to get that row into invalidDataTag where as i am unable to find the file name…
raj
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How to find rejected files due to errors in apache beam java sdk

I Have N number of same type files to be processed and I will be giving a wildcard input pattern(C:\\users\\*\\*). So now how do I find the file name and record ,that has been rejected while uploading to bigquery in java.
raj
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Can Apache Beam Pipeline be used for batch orchestration?

I am newbie in apache beam environment. Trying to fit apache beam pipeline for batch orchestration. My definition of batch is as follows Batch==> a set of jobs, Job==> can have one or more sub-job. There can be dependencies between…
Rahul Ranjan
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