spark scala example

("message"). ToString (). Contains ("A")) println ("Find A in message:" +map.tostring ())}}classRulefilelistenerbextendsStreaminglistener {override Def onbatchstarted (batchstarted: org.apache.spark.streaming.scheduler.StreamingListenerBatchStarted) {println ("-------------------------------------------------------------------------------------------------------------- -------------------------------") println ("Check whether the file's modified date is change, if change then reload the configu

Example of the RDD FlatMap operation:FlatMap, performs a function operation on each element (line) of the original Rdd, and then "beats" each line[Email protected] ~]$ HDFs dfs-put cats.txt[Email protected] ~]$ HDFs dfa-cat cats.txtError:could not find or load main class DFA[Email protected] ~]$ HDFs dfs-cat cats.txtThe Cat on the matThe aardvark sat on the sofaMydata=sc.textfile ("Cats.txt")Mydata.count ()OUT[14]: 2Mydata.take (2)OUT[15]: [u ' the Ca

Tags: declaring localhost lis problem eset no ICA normal OSIRecently in the Watch Learning spark Framework. This is a web framework, as its website link shows: SPARK-A Micro framework for creating Web applications in Kotlin and Java 8 with minimal effort I follow its example to learn. Here comes the Blogservice project [portal], which is also an