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Forum Posts
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Resolved! Azure Databricks container runtime broken in 9.1 LTS, how to fix?
For stability, I've stuck with LTS. Last Friday my containers stopped working with error message:Py4JException: An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last): File "/databricks/spark/python/lib/py4j-...
- 10257 Views
- 10 replies
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This is getting worse. Now JDBC write to SQL is failing for same reason. I haven't yet found a solution for this.Am I not supposed to use containers? Python?This is not cool.
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- 6962 Views
- 4 replies
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How to force pandas_on_spark plots to use all dataframe data?
When I load a table as a `pandas_on_spark` dataframe, and try to e.g. scatterplot two columns, what I obtain is a subset of the desired points. For example, if I try to plot two columns from a table with 1000000 rows, I only see some of the data - i...
- 6962 Views
- 4 replies
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@Kaniz Fatma The problem is not about performance or plotly. It is about the pandas_on_spark dataframe arbitrarily subsampling the input data when plotting, without notifying the user about it.While subsampling is comprehensible and maybe even nece...
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- 12348 Views
- 12 replies
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Resolved! JSON validation is getting failed after writing Pyspark dataframe to json format
Hi We have to convert transformed dataframe to json format. So we used write and json format on top of final dataframe to convert it to json. But when we validating the output json its not in proper json format.Could you please provide your suggestio...
- 12348 Views
- 12 replies
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@Sailaja B - Does @Aman Sehgal's most recent answer help solve the problem? If it does, would you be happy to mark their answer as best?
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- 4825 Views
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@Anand Ladda @André Monteiro From comments in the code:Indicates whether the task should be run in a REPL. This value must be true to run on an existing cluster. Please ignore the 'run_as_repl' parameters it will be removed from public docs as it i...
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- 5457 Views
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Where / how does DBFS store files?
I tried to use %fs head to print the contents of a CSV file used in a training%fs head "/mnt/path/file.csv"but got an error saying cannot head a directory!?Then I did %fs ls on the same CSV file and got a list of 4 files under a directory named as a ...
- 5457 Views
- 2 replies
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Hi @Al Jo , are you still seeing the error while printing the contents of te CSV file?
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- 861 Views
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- 9828 Views
- 8 replies
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Resolved! Unable to start SQL End point in DATABRICKS SQL
Hello All, I am trying to use Databricks SQL but somehow the SQL end point is not getting started. It is in starting state for long time and then session is getting expired. Please note , the default SQL End point also not getting started. I am using...
- 9828 Views
- 8 replies
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@AMZ DUD did you get this working? With a quota of 500, 43 mins is a long time for a cluster to launch. Perhaps a something in the account isn’t set up correctly. Can you please email me your workspace ID please at bilal dot aslam at databricks dot ...
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- 835 Views
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- 6866 Views
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Resolved! Hi Experts I want to know the difference between connecting any BI Tool to Spark SQL and Databricks SQL end point?
Its all about spinning the spark cluster and both spark Sql api and databricks does the same operation what difference does it make to BI tools ?
- 6866 Views
- 6 replies
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Latest Reply
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Thanks @Bilal Aslam and @Aman Sehgal for jumping in! @Basavaraj Angadi I want to make sure you got your question(s) answered! Will you let us know? Don't forget, you can select any reply as the "best answer" !
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- 4148 Views
- 4 replies
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Azure DBR - Have to load list of json files but the column has special character.(ex: {"hydra:xxxx": {"hydra:value":"yyyy", "hydra:value1":"zzzzz"}
Azure DBR - Have to load list of json files into data frame and then from DF to data bricks table but the column has special character and getting below error.Both column(key) and value (as json record) has special characters in the json file. # Can...
- 4148 Views
- 4 replies
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Latest Reply
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The best is just define schema manually. There is nice article from person who had exactly the same problem https://towardsdev.com/create-a-spark-hive-meta-store-table-using-nested-json-with-invalid-field-names-505f215eb5bf
- 8 kudos
- 1890 Views
- 1 replies
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Resolved! Feature request for spark performance tuning
Hi, I don't think there's a place to see this, please correct me if I'm wrong.Now to see performance tuning tips I have to go to spark UI, then to SQL view and on top I could see performance alerts that help me know If I need apply a spark config, co...
- 1890 Views
- 1 replies
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Latest Reply
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I think that can be requested at ideas.databricks.com
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- 13917 Views
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Resolved! Send UPDATE from Databricks to Azure SQL DataBase
Hello.I want to know how to do an UPDATE on Azure SQL DataBase from Azure Databricks using PySpark.I know how to make query as SELECT and turn it into DataFrame, but how to send back some data (as UPDATE on rows)?I want to use build in pyspark istead...
- 13917 Views
- 4 replies
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This is discussed on Stack Overflow. As you see for Azure Synapse there is a way, but for a plain SQL database you will have to use some kind of driver like odbc/jdbc.
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- 4686 Views
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the spilled data is written to some object store on the cloud provider.I believe all of them apply encryption by default.Of course it is up to you (or your colleagues) to restrict access to the storage.
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- 7193 Views
- 3 replies
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Resolved! Reading multiple parquet files from same _delta_log under a path
I have a path where there is _delta_log and 3 snappy.parquet files. I am trying to read all those .parquet using spark.read.format('delta').load(path) but I am getting data from only one same file all the time. Can't I read from all these files? If s...
- 7193 Views
- 3 replies
- 4 kudos
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@Werner Stinckens Thanks for the reply and explanation, that was helpful to understand the delta feature.
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