- 11619 Views
- 19 replies
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write from a Dataframe to a CSV file, CSV file is blank
Hi i am reading from a text file from a blob val sparkDF = spark.read.format(file_type) .option("header", "true") .option("inferSchema", "true") .option("delimiter", file_delimiter) .load(wasbs_string + "/" + PR_FileName) Then i test my Datafra...
- 11619 Views
- 19 replies
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Create temp folder inside output folder. Copy file part-00000* with the file name to output folder. Delete the temp folder. Python code snippet to do the same. fpath=output+'/'+'temp' def file_exists(path): try: dbutils.fs.ls(path) return...
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- 10674 Views
- 3 replies
- 1 kudos
Resolved! I want to create a function in azure Databricks notebook to send a email, based on a filter. Any leads are appriciated.
I have no idea from where to start
- 10674 Views
- 3 replies
- 1 kudos
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Thanks for you help @leedabee. I will go through second option, First one is not applicable in my case.
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- 5495 Views
- 3 replies
- 1 kudos
Resolved! JavaPackage' object is not callable :: Mlean
Hi Folks, We are working on production Databricks project using Mleap. when run below code on databricks, it throws error like " 'JavaPackage' object is not callable" code :import mleap.pyspark from mleap.pyspark.spark_support import SimpleSparkSer...
- 5495 Views
- 3 replies
- 1 kudos
- 32884 Views
- 5 replies
- 3 kudos
What's the difference between Interactive Clusters and Job Cluster?
I am new to databricks. I would like to know what is the difference between Interactive Clusters and Job Cluster? There are no official document now.
- 32884 Views
- 5 replies
- 3 kudos
- 3 kudos
Sports news Football news International football news Football news Thai football news, Thai football Follow news, know sports news at Siamsportnews
- 3 kudos
- 4501 Views
- 3 replies
- 0 kudos
How to specify multiple files in --py-files in spark-submit command for databricks job? All the files to be specified in --py-files present in dbfs: .
I have created a databricks in azure. I have created a cluster for python 3. I am creating a job using spark-submit parameters. How to specify multiple files in --py-files in spark-submit command for databricks job? All the files to be specified in ...
- 4501 Views
- 3 replies
- 0 kudos
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Hi @Nandha Kumar,please go through the below docs to pass python files as job,https://docs.databricks.com/dev-tools/api/latest/jobs.html#sparkpythontask
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- 5454 Views
- 2 replies
- 1 kudos
Handle comma inside cell of CSV
We are using spark-csv_2.10 > version 1.5.0 and reading the csv file column which contains comma " , " as one of the character. The problem we are facing is like that it treats the rest of line after the comma as new column and data is not interpre...
- 5454 Views
- 2 replies
- 1 kudos
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Take a look here for options, http://spark.apache.org/docs/latest/api/python/pyspark.sql.html?highlight=dataframereader#pyspark.sql.DataFrameReader.csv If a csv file has commas then the tradition is to quote the string that contains the comma, In ...
- 1 kudos
- 17801 Views
- 2 replies
- 0 kudos
Python spark.read.text Path does not exist
Dear all, I want to read files with python from a storage account. I followed this instruction https://docs.microsoft.com/en-us/azure/azure-databricks/store-secrets-azure-key-vault. This is my python code: dbutils.fs.mount(source = "wasbs://contain...
- 17801 Views
- 2 replies
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@rba76​ Make sure helloworld.txt file exists in the container1 folderI'm able to view the text file using the same commands as follows:Mount Blob Storage:dbutils.fs.mount( source = "wasbs://sampledata@azure.blob.core.windows.net/Azure", mount_po...
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- 11684 Views
- 6 replies
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Cannot Convert Column to Bool Error - When Converting dataframe column which is in string to date type in python
Hi All, I am trying to convert a dataframe column which is in the format of string to date type format yyyy-MM-DD? I have written a sql query and stored it in dataframe. df3 = sqlContext.sql(sqlString2) df3.withColumn(df3['CalDay'],pd.to_datetime(df...
- 11684 Views
- 6 replies
- 0 kudos
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Registered to post this so forgive the formatting nightmare This is a python databricks script function that allows you to convert from string to datetime or date and utilising coalescefrom pyspark.sql.functions import coalesce, to_date def to_dat...
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- 7336 Views
- 5 replies
- 0 kudos
How to create a dataframe with the files from S3 bucket
I have connected my S3 bucket from databricks. Using the following command : import urllib import urllib.parse ACCESS_KEY = "Test" SECRET_KEY = "Test" ENCODED_SECRET_KEY = urllib.parse.quote(SECRET_KEY, "") AWS_BUCKET_NAME = "Test" MOUNT_NAME = "...
- 7336 Views
- 5 replies
- 0 kudos
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Hi @akj2784,Please go through Databricks documentation on working with files in S3,https://docs.databricks.com/spark/latest/data-sources/aws/amazon-s3.html#mount-s3-buckets-with-dbfs
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- 5102 Views
- 2 replies
- 0 kudos
How to maintain Primary Key Column in Databricks Delta Multi Cluster environment
I am trying to replicate the SQL DB like feature of maintaining the Primary Keys in Databrciks Delta approach where the data is being written to Blob Storage such as ADLS2 oe AWS S3. I want a Auto Incremented Primary key feature using Databricks Del...
- 5102 Views
- 2 replies
- 0 kudos
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Hi @Aditya Deshpande​ There is no locking mechanism of PK in Delta. You can use row_number() function on the df and save using delta and do a distinct() before the write.
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- 14928 Views
- 1 replies
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NameError: name 'col' is not defined
I m executing the below code and using Pyhton in notebook and it appears that the col() function is not getting recognized . I want to know if the col() function belongs to any specific Dataframe library or Python library .I dont want to use pyspark...
- 14928 Views
- 1 replies
- 0 kudos
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@mudassar45@gmail.com as the document describe generic column not yet associated. Please refer the below code. display(peopleDF.select("firstName").filter("firstName = 'An'"))
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- 11287 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...
- 11287 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
- 6065 Views
- 1 replies
- 0 kudos
How to move files of same extension in databricks files system?
I am facing file not found exception when i am trying to move the file with * in DBFS. Here both source and destination directories are in DBFS. I have the source file named "test_sample.csv" available in dbfs directory and i am using the command li...
- 6065 Views
- 1 replies
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@bkr, you can reference the file name using dbutils and then pass this to the move command. Here's an example for this in Scala: val fileNm = dbutils.fs.ls("/usr/krishna/sample").map(_.name).filter(r => r.startsWith("test"))(0) val fileLoc = "dbfs:/...
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- 12315 Views
- 3 replies
- 1 kudos
Resolved! How to parse a file with newline character, escaped with \ and not quoted
Hi! I am facing an issue when reading and parsing a CSV file. Some records have a newline symbol, "escaped" by a \, and that record not being quoted. The file might look like this: Line1field1;Line1field2.1 \ Line1field2.2;Line1field3; Line2FIeld1;...
- 12315 Views
- 3 replies
- 1 kudos
- 16422 Views
- 2 replies
- 1 kudos
How to increase spark.kryoserializer.buffer.max
when I join two dataframes, I got the following error. org.apache.spark.SparkException: Kryo serialization failed: Buffer overflow. Available: 0, required: 1 Serialization trace: values (org.apache.spark.sql.catalyst.expressions.GenericRow) otherEle...
- 16422 Views
- 2 replies
- 1 kudos
- 1 kudos
val conf = new SparkConf() ... conf.set("spark.kryoserializer.buffer.max.mb", "512") ...
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