在Google Cloud Dataproc中运行Spark作业。使用BigQuery Connector将从作业输出的json数据加载到BigQuery表中。Spark BigQuery连接器:写入ARRAY类型会导致异常:“”ARRAY的值无效“
BigQuery Standard-SQL data types documentation指出支持ARRAY类型。
我的Scala代码是:
val outputDatasetId = "mydataset"
val tableSchema = "["+
"{'name': '_id', 'type': 'STRING'},"+
"{'name': 'array1', 'type': 'ARRAY'},"+
"{'name': 'array2', 'type': 'ARRAY'},"+
"{'name': 'number1', 'type': 'FLOAT'}"+
"]"
// Output configuration
BigQueryConfiguration.configureBigQueryOutput(
conf, projectId, outputDatasetId, "outputTable",
tableSchema)
//Write visits to BigQuery
jsonData.saveAsNewAPIHadoopDataset(conf)
但作业引发此异常:
{
"code" : 400,
"errors" : [ {
"domain" : "global",
"message" : "Invalid value for: ARRAY is not a valid value",
"reason" : "invalid"
} ],
"message" : "Invalid value for: ARRAY is not a valid value"
}
at
com.google.cloud.hadoop.util.AbstractGoogleAsyncWriteChannel.waitForCompletionAnThrowIfUploadFailed(AbstractGoogleAsyncWriteChannel.java:432)
at com.google.cloud.hadoop.util.AbstractGoogleAsyncWriteChannel.close(AbstractGoogleAsyncWriteChannel.java:287)
at com.google.cloud.hadoop.io.bigquery.BigQueryRecordWriter.close(BigQueryRecordWriter.java:358)
at org.apache.spark.rdd.PairRDDFunctions$$anonfun$saveAsNewAPIHadoopDataset$1$$anonfun$12$$anonfun$apply$5.apply$mcV$sp(PairRDDFunctions.scala:1124)
at org.apache.spark.util.Utils$.tryWithSafeFinallyAndFailureCallbacks(Utils.scala:1366)
... 8 more
Caused by: com.google.api.client.googleapis.json.GoogleJsonResponseException:
400 Bad Request
这是一个传统与标准SQL的问题?或者,Spark的BigQuery Connector不支持ARRAY类型?
完美。解决了。感谢复制/粘贴代码块。 –