- 1290 Views
- 1 replies
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Resolved! Databricks Spark Certification
Hello, I have been preparing for the for a while. I have seen here that the exam is mostly about remembering syntax details and some general understanding of the spark's internal architecture. I am VidMate just wondering if there are some exa Mobdro...
- 1290 Views
- 1 replies
- 2 kudos
- 2 kudos
I recommend practice tests on Udemy. There is also available practice exam from data-bricks training.I haven't found others.
- 2 kudos
- 1370 Views
- 1 replies
- 1 kudos
Resolved! Spark UI is not working for completed jobs
Spark UI is not working for completed jobs
- 1370 Views
- 1 replies
- 1 kudos
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Jobs executed from API jobs or Azure data factory are for example not available in spark management console.It can be also issue with community edition or spark settings.
- 1 kudos
- 2615 Views
- 1 replies
- 1 kudos
Resolved! Schema inferrence CSV picks up \r carriage returns
I'm using: frame = spark.read.csv(path=bucket+folder, inferSchema = True, header = True, multiLine=True ) to read in a series of CSV ...
- 2615 Views
- 1 replies
- 1 kudos
- 1 kudos
Files saved in Windows operation system contain carriage return and line feed in every line.Please add following option it can help: .option("ignoreTrailingWhiteSpace", true)
- 1 kudos
- 2770 Views
- 1 replies
- 4 kudos
Resolved! How to distinguish arrow-key from escape character with getch in C?
I want to know weather an arrow key or the escape character has ben pressed. But in order to check which arrow key has been pressed I need to do multiple blocking getch-calls bc the arrow-key sequence is bigger than 1 char. This is a problem when I c...
- 2770 Views
- 1 replies
- 4 kudos
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getch () function returns two keycodes for arrow keys. Arrow put to getch '\033' and '[' and letter from A to D (up, down, right, left) so code will be something like:if (getch() == '\033') { getch(); // [ value switch(getch()) { ...
- 4 kudos
- 4170 Views
- 3 replies
- 4 kudos
Resolved! Exception in thread "main" org.apache.spark.sql.AnalysisException: Cannot modify the value of a Spark config: spark.executor.memory;
I am trying to read a 16mb excel file and I was getting a gc overhead limit exceeded error to resolve that i tried to increase my executor memory with,spark.conf.set("spark.executor.memory", "8g")but i got the following stack :Using Spark's default l...
- 4170 Views
- 3 replies
- 4 kudos
- 4 kudos
On the cluster configuration page, go to the advanced options. Click it to expand the field. There you will find the Spark tab and you can set the values there in the "Spark config".
- 4 kudos
- 6924 Views
- 9 replies
- 8 kudos
Resolved! Getting Null values at the place of data which was removed manually from excel file( solved )
I was reading an excel file with one column,country india India india India indiadataframe i got from this data : df.show()+-------+ |country| +-------+ | india | | India | | india | | India | | india | +-------+In the next step i removed last value ...
- 6924 Views
- 9 replies
- 8 kudos
- 8 kudos
@sarvesh singh​ - Thank you for letting us know. Would you be happy to mark the best answer so others can find the solution easily?
- 8 kudos
- 3509 Views
- 4 replies
- 2 kudos
Resolved! How to transfer ownership of a Databricks cloud standard account?
My email address is the owner of an account in a particular standard plan tenancy. I would like to transfer ownership to another user so they can change billing details, and take admin access going forward. How can this be accomplished?
- 3509 Views
- 4 replies
- 2 kudos
- 2 kudos
Hi @David Allen​ To transfer account owner rights, contact your Databricks account representative. This is applicable for both legacy and E2 accounts.https://docs.databricks.com/administration-guide/account-settings/account-console.html#access-the-ac...
- 2 kudos
- 2867 Views
- 4 replies
- 3 kudos
- 2867 Views
- 4 replies
- 3 kudos
- 3 kudos
You may have noticed that the local SQL endpoint is not listed in the options for getting started with APEX. The local SQL endpoint is an extremely useful feature for getting ADO.NET web services started. I say check this uk-dissertation.com review f...
- 3 kudos
- 4302 Views
- 6 replies
- 1 kudos
Hi Guys Is there any documentation on where the /databricks-datasets/ mount is actually served from?We are looking at locking down where our workspace...
Hi GuysIs there any documentation on where the /databricks-datasets/ mount is actually served from?We are looking at locking down where our workspace can reach out to via the internet and as it currently stands we are unable to reach this.I did look ...
- 4302 Views
- 6 replies
- 1 kudos
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Hello Mat, Thanks for letting us know. Would you be happy to mark your answer as best if that will solve the problem for others? That way, members will be able to find the solution more easily.
- 1 kudos
- 2712 Views
- 2 replies
- 1 kudos
2021-08-Best-Practices-for-Your-Data-Architecture-v3-OG-1200x628
Thanks to everyone who joined the Best Practices for Your Data Architecture session on Getting Workloads to Production using CI/CD. You can access the on-demand session recording here, and the code in the Databricks Labs CI/CD Templates Repo. Posted ...
- 2712 Views
- 2 replies
- 1 kudos
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Here's the embedded links list!Jobs scheduling and orchestrationBuilt-in job scheduling: https://docs.databricks.com/jobs.html#schedule-a-job Periodic scheduling of the jobsExecute notebook / jar / Python script / Spark-submitMultitask JobsExecute no...
- 1 kudos
- 3976 Views
- 7 replies
- 5 kudos
Resolved! Why adding the package 'org.apache.spark:spark-sql-kafka-0-10_2.12:3.0.1' failed in runtime 9.1.x-scala2.12 but was successful using runtime 8.2.x-scala2.12 ?
Using Databricks spark submit job, setting new cluster1] "spark_version": "8.2.x-scala2.12" => OK, works fine2] "spark_version": "9.1.x-scala2.12" => FAIL, with errorsException in thread "main" java.lang.ExceptionInInitializerError at com.databricks...
- 3976 Views
- 7 replies
- 5 kudos
- 5 kudos
this has been resolved by adding the following spark_conf (not thru --conf) "spark.hadoop.fs.file.impl": "org.apache.hadoop.fs.LocalFileSystem"example:------"new_cluster": { "spark_version": "9.1.x-scala2.12", ... "spark_conf": { "spar...
- 5 kudos
- 2831 Views
- 2 replies
- 4 kudos
Resolved! display() function always return connection refused on tunneling despite successfully retrieving the schema
Hi everyone,I am using SSH tunnelling with SSHTunnelForwarder to reach a target AWS RDS PostgreSQL database. The connection got through, however when I tried to display the retrieved data frame it always throws "connection refused" error. Please see ...
- 2831 Views
- 2 replies
- 4 kudos
- 4 kudos
hi @Kurnianto Trilaksono Sutjipto​ ,This seems like a connectivity issue with the url you are trying to connect to. It fails during the display() command because read is a lazy transformation and it will not be executed right away. On the other hand,...
- 4 kudos
- 4207 Views
- 5 replies
- 11 kudos
Resolved! Runtime SQL Configuration - how to make it simple
Hi, I'm running couple of Notebooks in my pipeline and I would like to set fixed value of 'spark.sql.shuffle.partitions' - same value for every notebook. Should I do that by adding spark.conf.set.. code in each Notebook (Runtime SQL configurations ar...
- 4207 Views
- 5 replies
- 11 kudos
- 11 kudos
Hi, Thank you all for the tips. I tried before to set this option in Spark Config but didn't work for some reason. Today I tried again and it's working :).
- 11 kudos
- 3645 Views
- 3 replies
- 5 kudos
Resolved! Delta Tables incremental backup method
Hello,Does anyone tried to create an incremental backup on delta tables? What I mean is to load into the backup storage only the latest parquet files part of the Delta Table and to refresh the _delta_log folder, instead of copying the whole files aga...
- 3645 Views
- 3 replies
- 5 kudos
- 5 kudos
Hi @Stefan Stegaru​ ,You can use Delta time travel to query the data that was just added on a specific version. Then like @Hubert Dudek​ mentioned, you can copy over this sub set of data to a new table or a new location. You will need to do a deep...
- 5 kudos
- 4119 Views
- 3 replies
- 5 kudos
Resolved! Can't find or Enable "Files in Repos" feature
Not able to Find or Enable "Files in Repos" feature in the workspace, What could be the reason
- 4119 Views
- 3 replies
- 5 kudos