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apuranik
I am trying to use node based labeling with spark applications. I have added the label entry in the yarn.node.labels.file. However, when I use the "spark.yarn.executor.nodeLabelExpression=<label>" property with spark submit, it does not spin up executors on the labelled node only, but on all the available nodes in the cluster. In verbose mode, the… (Show more)
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etd45
Hi,   in the 5.2 documentation (stream topic info ) the date output format is in milliseconds.   But when I launch the same command, the output is of this kind: 2018-02-28T09:21:41.171+0100 The problem is that I don't know if the time is AM or PM.   So, how can I change the date format to get date in milliseconds.           Thank's
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Ken
Hi, I following https://maprdocs.mapr.com/home/Drill/drill_odbc_connector.html on install ODBC for DRILL on Win10, However, I got the following error message while testing the ODBC datasource.   FAILED! [MapR][Drill] (30)  User authentication failed. Server message: DrillClientImpl::handleAuthentication: Authentication failed. [Details: … (Show more)
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jalendhar
After rename the Table in Hive getting the org.apache.spark.sql.AnalysisException: Path does not exist: maprfs:/user/hive/warehouse/adult.   Code snippet: var df = spark.read.format("com.databricks.spark.csv").option("header", "true").load("/root/adult.csv") df.write().mode("overwrite").saveAsTable("order"); spark.sql("drop table adult")… (Show more)
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jalendhar
How to write data into HDFS in MapR ?   I am trying to write the csv file data into hdfs file system using JAVA API , But i am not able to write into HDFS file system #HDFS apache hadoop
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srikumaran.t
I thought org.apache.sqoop.validation.RowCountValidator will take count while sqoop retrieve records from source, but its taking count after the MR completes. How to handle this in live RDBMS?How to handle this? Also, How to use Percentage Tolerant? Reference: https://sqoop.apache.org/docs/1.4.6/SqoopUserGuide.html
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MichaelSegel
This may seem like a silly question but ...   I just upgraded cluster to 6.0.1 ... Everything seems to have gone ok, yet on the first page of the MCS, I see a red button which says 'Register Now'.   Not sure why I have this because the single node, community edition, is 'registered' in that I have a license key from MapR.   So what am I… (Show more)
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manikanthkoora
I can see the data in df as a tabular format and it looks good. But when I save the df(dataframe) to mapr db, only one column is getting saved and remaining columns are missing. I am unable to find the root cause of this issue. Thanks for the help val ssc = new StreamingContext(spark.sparkContext, Seconds(10)) val cassandraRDD =… (Show more)
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stobe
I try to access to my drillbit with Plain Authentication from zeppelin on Docker [data-science-refinery:v1.2_6.0.1_5.0.0_centos7]. But I'm facing below error: java.sql.SQLException: [MapR][DrillJDBCDriver](500150) Error setting/closing connection. Details: Client needs authentication but server doesn't support any security mechanisms. Please… (Show more)
sohan
As of now, we got the RDD which has the Cassandra data. We are trying to convert the RDD to DataFrame so that we can save the data to MapR-DB. We are getting following error while converting the RDD to DF.   scala> dstream.foreachRDD { rdd=>      |  val sqlContext = SQLContext.getOrCreate(cassandraRDD.sparkContext)      | import spark.implicits._… (Show more)
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reedv
Is it possible to use Apache Atlas for data management on MapR? Basically would like some form of data governance and lineage visualization for the data on our mapr cluster, so if there are better solutions (aside from a full scale quickstart solution (eg. Data Governance without Compromise | MapR )), please let me know as well. Thank you.   I… (Show more)
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navys3al
I have set up MapR Sandbox for Drill running with the follow VirtualBox Bridged Network environments: VM1: MapR Sandbox for Drill with Sample Dataset in MapR-FS and MapR-DB VM2: Windows 7 Client (installed with MapR Drill ODBC Driver and Qlik Sense Desktop) Both VMs can ping each other. I can SSH into the Sandbox with user "mapr". System DSN… (Show more)
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shrilesh.naik
Hi,   When we execute sample oozie (spark) job, the jobs executes in few mins but oozie takes more than 10 mins to reflect correct status from UI till then it shows job status as running.   /opt/mapr/oozie/oozie-4.3.0/bin/oozie job -oozie="http://localhost:11000/oozie" -config /opt/mapr/oozie/oozie-4.3.0/examples/apps/spark/job.properties -run  … (Show more)
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