多行json 直接 使用 sqlcontext.read().json("path") 读取时候 报错如下 :
Exception in thread "main" org.apache.spark.sql.AnalysisException: Since Spark 2.3, the queries from raw JSON/CSV files are disallowed when the
referenced columns only include the internal corrupt record column
(named _corrupt_record by default). For example:
spark.read.schema(schema).json(file).filter($"_corrupt_record".isNotNull).count()
and spark.read.schema(schema).json(file).select("_corrupt_record").show().
Instead, you can cache or save the parsed results and then send the same query.
For example, val df = spark.read.schema(schema).json(file).cache() and then
df.filter($"_corrupt_record".isNotNull).count().;
at org.apache.spark.sql.execution.datasources.json.JsonFileFormat.buildReader(JsonFileFormat.scala:118)
at org.apache.spark.sql.execution.datasources.FileFormat$class.buildReaderWithPartitionValues(FileFormat.scala:129)
at org.apache.spark.sql.execution.datasources.TextBasedFileFormat.buildReaderWithPartitionValues(FileFormat.scala:160)
at org.apache.spark.sql.execution.FileSourceScanExec.inputRDD$lzycompute(DataSourceScanExec.scala:294)
at org.apache.spark.sql.execution.FileSourceScanExec.inputRDD(DataSourceScanExec.scala:290)
at org.apache.spark.sql.execution.FileSourceScanExec.inputRDDs(DataSourceScanExec.scala:312)
at org.apache.spark.sql.execution.WholeStageCodegenExec.doExecute(WholeStageCodegenExec.scala:610)
at org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:131)
at org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:127)
at org.apache.spark.sql.execution.SparkPlan$$anonfun$executeQuery$1.apply(SparkPlan.scala:155)
at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at org.apache.spark.sql.execution.SparkPlan.executeQuery(SparkPlan.scala:152)
at org.apache.spark.sql.execution.SparkPlan.execute(SparkPlan.scala:127)
at org.apache.spark.sql.execution.SparkPlan.getByteArrayRdd(SparkPlan.scala:247)
at org.apache.spark.sql.execution.SparkPlan.executeTake(SparkPlan.scala:337)
at org.apache.spark.sql.execution.CollectLimitExec.executeCollect(limit.scala:38)
at org.apache.spark.sql.Dataset.org$apache$spark$sql$Dataset$$collectFromPlan(Dataset.scala:3278)
at org.apache.spark.sql.Dataset$$anonfun$head$1.apply(Dataset.scala:2489)
at org.apache.spark.sql.Dataset$$anonfun$head$1.apply(Dataset.scala:2489)
at org.apache.spark.sql.Dataset$$anonfun$52.apply(Dataset.scala:3259)
at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
at org.apache.spark.sql.Dataset.withAction(Dataset.scala:3258)
at org.apache.spark.sql.Dataset.head(Dataset.scala:2489)
at org.apache.spark.sql.Dataset.take(Dataset.scala:2703)
at org.apache.spark.sql.Dataset.showString(Dataset.scala:254)
at org.apache.spark.sql.Dataset.show(Dataset.scala:723)
at org.apache.spark.sql.Dataset.show(Dataset.scala:682)
at org.apache.spark.sql.Dataset.show(Dataset.scala:691)
at App.main(App.java:16)
19/09/01 15:03:48 INFO SparkContext: Invoking stop() from shutdown hook
19/09/01 15:03:48 INFO SparkUI: Stopped Spark web UI at http://192.168.1.2:4040
19/09/01 15:03:48 INFO MapOutputTrackerMasterEndpoint: MapOutputTrackerMasterEndpoint stopped!
19/09/01 15:03:48 INFO MemoryStore: MemoryStore cleared
19/09/01 15:03:48 INFO BlockManager: BlockManager stopped
19/09/01 15:03:48 INFO BlockManagerMaster: BlockManagerMaster stopped
19/09/01 15:03:48 INFO OutputCommitCoordinator$OutputCommitCoordinatorEndpoint: OutputCommitCoordinator stopped!
19/09/01 15:03:48 INFO SparkContext: Successfully stopped SparkContext
19/09/01 15:03:48 INFO ShutdownHookManager: Shutdown hook called
19/09/01 15:03:48 INFO ShutdownHookManager: Deleting directory /private/var/folders/s1/d29h6xhj3r7dnw9d5m2d626w0000gn/T/spark-cbdf2489-115a-4e4b-93fb-4e5e06c24586
将其数据格式修改为单行json 后 无 此问题
样例数据
{
"name": "芙蓉姐姐",
"age": 12,
"sex": "W"
}
{
"name": "女娲",
"age": 3008,
"sex" : "W"
}
测试使用 网上的解决方案
如 下 links
方法一设置 option
方法 二设置 wholeTextFiles 预读取数据
//Dataset json = sqlContext.read().option("multiline", true).option("mode", "PERMISSIVE").json("./resources/app.json");
Dataset<Row> json = sqlContext.read().json(sc.wholeTextFiles("./resources/app.json").values());
json.printSchema();
但是效果不太好。
依然没有将多行json 解析 正常
最后发现 使用设置 或者 while TextFile 对文件格式要求较高 。
需要是标准的json 格式 。从新检查数据后 可以运行