Hi Yash, Yes, AFAIK, that is the expected behavior of the Overwrite mode.
I think you can use the following approaches if you want to perform a job on each partitions [1] for each partition in DF : https://github.com/apache/spark/blob/branch-1.6/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala#L1444 [2] run job in SC: https://github.com/apache/spark/blob/branch-1.6/core/src/main/scala/org/apache/spark/SparkContext.scala#L1818 Best On Thu, Jul 7, 2016 at 7:40 AM, Yash Sharma [via Apache Spark Developers List] <ml-node+s1001551n18219...@n3.nabble.com> wrote: > Hi All, > While writing a partitioned data frame as partitioned text files I see > that Spark deletes all available partitions while writing few new > partitions. > > dataDF.write.partitionBy(“year”, “month”, >> “date”).mode(SaveMode.Overwrite).text(“s3://data/test2/events/”) > > > Is this an expected behavior ? > > I have a past correction job which would overwrite couple of past > partitions based on new arriving data. I would only want to remove those > partitions. > > Is there a neater way to do that other than: > - Find the partitions > - Delete using Hadoop API's > - Write DF in Append Mode > > > Cheers > Yash > > > > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://apache-spark-developers-list.1001551.n3.nabble.com/Spark-deletes-all-existing-partitions-in-SaveMode-Overwrite-Expected-behavior-tp18219.html > To start a new topic under Apache Spark Developers List, email > ml-node+s1001551n1...@n3.nabble.com > To unsubscribe from Apache Spark Developers List, click here > <http://apache-spark-developers-list.1001551.n3.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=1&code=bmlyYW5kYS5wZXJlcmFAZ21haWwuY29tfDF8NjAxMDUyMzU5> > . > NAML > <http://apache-spark-developers-list.1001551.n3.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > -- Niranda @n1r44 <https://twitter.com/N1R44> +94-71-554-8430 https://pythagoreanscript.wordpress.com/ -- View this message in context: http://apache-spark-developers-list.1001551.n3.nabble.com/Spark-deletes-all-existing-partitions-in-SaveMode-Overwrite-Expected-behavior-tp18219p18220.html Sent from the Apache Spark Developers List mailing list archive at Nabble.com.
