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Felix Cheung commented on SPARK-23213: -------------------------------------- You can convert DataFrame into RDD But again textFile and RDD (all RDD APIs) are not supported public API, sorry. It will help if you could elaborate on what you are trying to do and what you might need. > SparkR:::textFile(sc1,"/opt/test333") can not work on spark2.2.1 > ----------------------------------------------------------------- > > Key: SPARK-23213 > URL: https://issues.apache.org/jira/browse/SPARK-23213 > Project: Spark > Issue Type: Bug > Components: SparkR > Affects Versions: 2.2.1 > Environment: JAVA_HOME=/opt/jdk1.8.0_161/ > spark 2.2.1 > R version 3.4.3 (2017-11-30) – "Kite-Eating Tree" > Reporter: Tony > Priority: Major > > Welcome to > ____ __ > / __/__ ___ _____/ /__ > _\ \/ _ \/ _ `/ __/ '_/ > /___/ .__/\_,_/_/ /_/\_\ version 2.2.1 > /_/ > > > SparkSession available as 'spark'. > > > sc1 <- sparkR.session(appName = "wordcount") > lines <- SparkR:::textFile(sc1,"/opt/test333") > 18/01/25 02:33:37 ERROR RBackendHandler: defaultParallelism on 1 failed > java.lang.IllegalArgumentException: invalid method defaultParallelism for > object 1 > at > org.apache.spark.api.r.RBackendHandler.handleMethodCall(RBackendHandler.scala:193) > at > org.apache.spark.api.r.RBackendHandler.channelRead0(RBackendHandler.scala:108) > at > org.apache.spark.api.r.RBackendHandler.channelRead0(RBackendHandler.scala:40) > at > io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343) > at > io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336) > at > io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343) > at > io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336) > at > io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343) > at > io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336) > at > io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293) > at > io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343) > at > io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336) > at > io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) > at > io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343) > at > io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911) > at > io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131) > at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:643) > at > io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566) > at > io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480) > at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442) > at > io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131) > at > io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144) > at java.lang.Thread.run(Thread.java:748) -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org