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https://issues.apache.org/jira/browse/SPARK-12953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15111750#comment-15111750
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shijinkui commented on SPARK-12953:
-----------------------------------
OK, get it.
> RDDRelation write set mode will be better to avoid error "pair.parquet
> already exists"
> --------------------------------------------------------------------------------------
>
> Key: SPARK-12953
> URL: https://issues.apache.org/jira/browse/SPARK-12953
> Project: Spark
> Issue Type: Improvement
> Components: Examples
> Reporter: shijinkui
> Priority: Minor
>
> It will be error if not set Write Mode when execute test case
> `RDDRelation.main()`
> Exception in thread "main" org.apache.spark.sql.AnalysisException: path
> file:/Users/sjk/pair.parquet already exists.;
> at
> org.apache.spark.sql.execution.datasources.InsertIntoHadoopFsRelation.run(InsertIntoHadoopFsRelation.scala:76)
> at
> org.apache.spark.sql.execution.ExecutedCommand.sideEffectResult$lzycompute(commands.scala:58)
> at
> org.apache.spark.sql.execution.ExecutedCommand.sideEffectResult(commands.scala:56)
> at
> org.apache.spark.sql.execution.ExecutedCommand.doExecute(commands.scala:70)
> at
> org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$5.apply(SparkPlan.scala:132)
> at
> org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$5.apply(SparkPlan.scala:130)
> at
> org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:150)
> at org.apache.spark.sql.execution.SparkPlan.execute(SparkPlan.scala:130)
> at
> org.apache.spark.sql.execution.QueryExecution.toRdd$lzycompute(QueryExecution.scala:55)
> at
> org.apache.spark.sql.execution.QueryExecution.toRdd(QueryExecution.scala:55)
> at
> org.apache.spark.sql.execution.datasources.ResolvedDataSource$.apply(ResolvedDataSource.scala:256)
> at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:148)
> at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:139)
> at
> org.apache.spark.sql.DataFrameWriter.parquet(DataFrameWriter.scala:329)
> at net.pusuo.gs.sql.RDDRelation$.main(RDDRelation.scala:65)
> at net.pusuo.gs.sql.RDDRelation.main(RDDRelation.scala)
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