- 7143 Views
- 4 replies
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How can I integrate DataBricks into PyCharm?
Editing notebooks on DataBricks is rather cumbersome because it lacks a lot of features IDEs like PyCharm have. Another problem is that a DataBricks notebook comes with some local state which are not present on my computer. How can I edit notebooks ...
- 7143 Views
- 4 replies
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The documents are out for databricks-connect: https://docs.azuredatabricks.net/user-guide/dev-tools/db-connect.html I've also written up about a few limitations I have found - some with workarounds: https://datathirst.net/blog/2019/3/7/databricks-co...
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- 16705 Views
- 12 replies
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Azure Data Lake Config Issue: No value for dfs.adls.oauth2.access.token.provider found in conf file.
Hi,I have files hosted on an Azure Data Lake Store which I can connect from Azure Databricks configured as per instructions here.I can read JSON files fine, however, I'm getting the following error when I try to read an Avro file.spark.read.format("c...
- 16705 Views
- 12 replies
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Taras's answer is correct. Because spark-avro is based on the RDD APIs, the properties must be set in the hadoopConfiguration options. Please note these docs for configuration using the RDD API: https://docs.azuredatabricks.net/spark/latest/data-sou...
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- 9718 Views
- 4 replies
- 0 kudos
Splitting Date into Year, Month and Day, with inconsistent delimiters
I am trying to split my Date Column which is a String Type right now into 3 columns Year, Month and Date. I use (PySpark): <code>split_date=pyspark.sql.functions.split(df['Date'], '-') df= df.withColumn('Year', split_date.getItem(0)) df= df.wit...
- 9718 Views
- 4 replies
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- 6811 Views
- 1 replies
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How can we compare two dataframes in spark scala to find difference between these 2 files, which column ?? and value ??.
I have two files and I created two dataframes prod1 and prod2 out of it.I need to find the records with column names and values that are not matching in both the dfs. id_sk is the primary key .all the cols are string datatype dataframe 1 (prod1) id_...
- 6811 Views
- 1 replies
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use full Outer Join in spark SQL
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- 22890 Views
- 2 replies
- 0 kudos
Resolved! How to create blank target links in markdown to open url link in new tabs?
I am using markdown to include links urls. I am using the below markdown syntax: [link text](http://example.com) The issue is each time I click the linked text it opens the url in the same tab as the notebook. I want the url to open it in a new ta...
- 22890 Views
- 2 replies
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Hi @Ariel Herrera, You can just put html anchor tag in databricks notebook cell. It will open a new tab when you click it. Please try the example below. It works for me in databricks notebook. %md <a href="https://google.com" target="_blank">google ...
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- 10758 Views
- 5 replies
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- 10758 Views
- 5 replies
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This is an old post, however, is this still accurate for the latest version of Databricks in 2019? If so, how to approach the following?1. Connect to many MongoDBs.2. Connect to MongoDB when connection string information is dynamic (i.e. stored in s...
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- 26172 Views
- 1 replies
- 0 kudos
How filter condition working in spark dataframe?
I have a table in hbase with 1 billions records.I want to filter the records based on certain condition (by date). For example: Dataframe.filter(col(date) === todayDate) Filter will be applied after all records from the table will be loaded into me...
- 26172 Views
- 1 replies
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Hello @senthil kumar​ To pass external values to the filter (or where) transformations you can use the "lit" function in the following way:Dataframe.filter(col(date) == lit(todayDate))don´t know if that helps. Be careful with the schema infered by th...
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- 21459 Views
- 4 replies
- 0 kudos
Issues with UTF-16 files and unicode characters
Can someone please offer some insight - I've spent days trying to solve this issue We have the task of loading in hundreds of tab seperated text files encoded in UTF-16 little endian with a tab delimiter. Our organisation is an international one and...
- 21459 Views
- 4 replies
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You can also always read in the file as a textFile, and then run a UTF-16 decoder/encoder library as a UDF on the text.
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- 19055 Views
- 8 replies
- 2 kudos
Resolved! Can I connect to a MS SQL server table in Databricks account?
I'd like to access a table on a MS SQL Server (Microsoft). Is it possible from Databricks? To my understanding, the syntax is something like this (in a SQL Notebook): CREATE TEMPORARY TABLE jdbcTable USING org.apache.spark.sql.jdbc OPTIONS ( url...
- 19055 Views
- 8 replies
- 2 kudos
- 2 kudos
Thanks for the trick that you have shared with us. I am really amazed to use this informational post. If you are facing MacBook error like MacBook Pro won't turn on black screen then click the link.
- 2 kudos
- 16789 Views
- 2 replies
- 0 kudos
Write data Frame into Azure Data Lake Storage
It happens that I am manipulating some data using Azure Databricks. Such data is in an Azure Data Lake Storage Gen1. I mounted the data into DBFS, but now, after transforming the data I would like to write it back into my data lake. To mount the dat...
- 16789 Views
- 2 replies
- 0 kudos
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I am new in Azure Data Bricks..and I am trying to write the Data frame in mounted ADLS file. But in below command dfGPS.write.mode("overwrite").format("com.databricks.spark.csv").option("header","true").csv("/mnt/<mount-name>")
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- 14674 Views
- 4 replies
- 0 kudos
Resolved! Error: TransportResponseHandler: Still have 1 requests outstanding when connection, occurring only on large dataset.
I am getting below error only during large dataset(i.e 15 TB compressed) . if my dataset is small( 1TB) i am not getting this error. Look like it fails on shuffle stage. Approx number of mappers is 150,000 Spark config:spark.sql.warehouse.dir hdfs:...
- 14674 Views
- 4 replies
- 0 kudos
- 24414 Views
- 4 replies
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Writing large parquet file (500 millions row / 1000 columns) to S3 takes too much time
Hello community,First let me introduce my use case, i daily receive a 500 million rows like so :ID | Categories 1 | cat1, cat2, cat3, ..., catn 2 | cat1, catx, caty, ..., anothercategory Input data: 50 compressed csv files each file is 250 MB ...
- 24414 Views
- 4 replies
- 0 kudos
- 11201 Views
- 2 replies
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why spark very slow with large number of dataframe columns
scala Spark App: I have a dataset of 130x14000. I read from a parquet file with SparkSession. Then used for Spark ML Random Forest model (using pipeline). It takes 7 hours to complete! for reading the parquet file takes about 1 minute. If I implemen...
- 11201 Views
- 2 replies
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I've already answered a similar question on StackOverflow so I'll repeat what a I said there. The following may not solve your problem completely but it should give you some pointer to start. The first problem that you are facing is the disproportio...
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- 9053 Views
- 1 replies
- 0 kudos
How to store a pyspark dataframe in S3 bucket.
I have a pyspark dataframe df containing 4 columns. How can I write this dataframe to s3 bucket? I'm using pycharm to execute the code. and what are the packages required to be installed?
- 9053 Views
- 1 replies
- 0 kudos
- 0 kudos
You shouldn't need any packages. You can mount S3 bucket to Databricks cluster. https://docs.databricks.com/spark/latest/data-sources/aws/amazon-s3.html#mount-aws-s3 or this http://www.sparktutorials.net/Reading+and+Writing+S3+Data+with+Apache+Spark...
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- 37643 Views
- 8 replies
- 1 kudos
Resolved! Comparing two dataframes
How can we compare two data frames using pyspark I need to validate my output with another dataset
- 37643 Views
- 8 replies
- 1 kudos
- 1 kudos
I think the best bet in such a case is to take inner join (equivalent to intersection) by putting a condition on those columns which necessarily need to have same value in both dataframes. For example, let df1 and df2 are two dataframes. df1 has co...
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