如何从独立的spark集群访问azure块文件系统(abfss)

zzoitvuj  于 2021-05-18  发布在  Spark
关注(0)|答案(1)|浏览(1095)

我需要在hadoop3.2中使用独立的spark集群(2.4.7),我正在尝试通过pyspark访问adls gen2存储。
我已经向core-site.xml添加了一个共享密钥,我可以像这样初始化存储帐户:

hadoop fs -ls abfss://<container>@<storage_account>.dfs.core.windows.net/

但是当我尝试在pyspark中读取json文件时(使用shell),就像这样:

spark.conf.set("fs.azure.account.key.<<storageaccount>>.dfs.core.windows.net", "<<key>>")

spark.read.option("multiLine", True).option("mode", "PERMISSIVE").json("abfss://<container>@<storageaccount>.dfs.core.windows.net/example.json").show()

我得到以下错误:

WARN streaming.FileStreamSink: Error while looking for metadata directory.
  File "/opt/spark/python/pyspark/sql/utils.py", line 63, in deco
    return f(*a,**kw)
  File "/opt/spark/python/lib/py4j-0.10.7-src.zip/py4j/protocol.py", line 328, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling o103.json.
: java.io.IOException: No FileSystem for scheme: abfss
        at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2660)
        at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2667)
        at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:94)
        at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2703)
        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2685)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:373)
        at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
        at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$org$apache$spark$sql$execution$datasources$DataSource$$checkAndGlobPathIfNecessary$1.apply(DataSource.scala:561)
        at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$org$apache$spark$sql$execution$datasources$DataSource$$checkAndGlobPathIfNecessary$1.apply(DataSource.scala:559)
        at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
        at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
        at scala.collection.immutable.List.foreach(List.scala:392)
        at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:241)
        at scala.collection.immutable.List.flatMap(List.scala:355)
        at org.apache.spark.sql.execution.datasources.DataSource.org$apache$spark$sql$execution$datasources$DataSource$$checkAndGlobPathIfNecessary(DataSource.scala:559)
        at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:373)
        at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:242)
        at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:230)
        at org.apache.spark.sql.DataFrameReader.json(DataFrameReader.scala:411)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
        at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
        at py4j.Gateway.invoke(Gateway.java:282)
        at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
        at py4j.commands.CallCommand.execute(CallCommand.java:79)
        at py4j.GatewayConnection.run(GatewayConnection.java:238)
        at java.lang.Thread.run(Thread.java:748)WARN: command not found

我还为配置了hadoop lib路径 SPARK_DIST_CLASSPATH 指向 $(hadoop classpath) 并抄袭了 hadoop-azure 罐到罐 hadoop/common 文件夹。但仍然无法通过pyspark访问abfss。
我会错过什么?
也尝试了这里给出的答案

wz8daaqr

wz8daaqr1#

本文帮助您diy:apachespark和adlsgen2支持,确保您已经完成了在apachespark上成功配置adlsgen2的所有必要步骤。

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