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Forum Posts

Hubert-Dudek
by Esteemed Contributor III
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databricks Photon is a next-generation engine on the Databricks Lakehouse Platform that provides speedy query performance at a low cost.- Its function...

databricks Photon is a next-generation engine on the Databricks Lakehouse Platform that provides speedy query performance at a low cost.- Its function coverage is growing, and UDF under Photon is coming, which can bring significant improvements in us...

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Hubert-Dudek
Esteemed Contributor III
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kk007
by New Contributor III
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Photon engine throws error "JSON document exceeded maximum allowed size 400.0 MiB"

I am reading a 83MB json file using " spark.read.json(storage_path)", when I display the data is seems displaying fine, but when I try command line count, it complains about file size , being more than 400MB, which is not true.Photon JSON reader erro...

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Anonymous
Not applicable
  • 4 kudos

@Kamal Kumar​ :The error message suggests that the JSON document size is exceeding the maximum allowed size of 400MB. This could be caused by one or more documents in your JSON file being larger than this limit. It is not a bug, but a limitation set ...

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HariSelvarajan
by New Contributor III
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DAIWT22_RadicalSpeenInLakehouse_Photon

Topic: Radical Speed on the Lakehouse: Photon under the hoodI am Hari and I works as a Specialist Solutions Architect at Databricks. I specialise in Data engineering and Cloud platforms problems helping client in EMEA.Purpose:I recently presented a t...

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  • 5 kudos
Pragan
by New Contributor
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  • 5 replies
  • 1 kudos

Resolved! Cluster doesn't support Photon with Docker Image enabled

I enabled Photon 9.1 LTS DBR in cluster that was already using Docker Image of the latest version, when I ran a SQL QUery using my cluster, I could not see any Photon engine working in my executor that should be actually running in Photon Engine.When...

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Anonymous
Not applicable
  • 1 kudos

Hello @Praganessh S​ , Photon is currently in Public Preview. The only way to use it is to explicitly run Databricks-provide Runtime images which contain it. Please see: https://docs.databricks.com/runtime/photon.html#databricks-clustersandhttps://do...

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MoJaMa
by Valued Contributor II
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MoJaMa
Valued Contributor II
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It's our new high-performance runtime, using a native vectorized engine developed in C++.Please see our blog for a great overview. https://databricks.com/blog/2021/06/17/announcing-photon-public-preview-the-next-generation-query-engine-on-the-databri...

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User16826994223
by Honored Contributor III
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How is the photon engine different to catalyst optimizer

How is the photon engine different to catalyst optimizer

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User16826994223
Honored Contributor III
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I got this question from some customers and I want ti clarify here tooI think we are conflating two things:Catalyst optimizer is about coming up "Steps to take to execute the query". For example, the optimizer will decide how and when to do the join...

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