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From Felix Cheung <>
Subject Re: Spark GraphFrame ConnectedComponents
Date Thu, 05 Jan 2017 01:19:08 GMT
Do you have more of the exception stack?

From: Ankur Srivastava <>
Sent: Wednesday, January 4, 2017 4:40:02 PM
Subject: Spark GraphFrame ConnectedComponents


I am trying to use the ConnectedComponent algorithm of GraphFrames but by default it needs
a checkpoint directory. As I am running my spark cluster with S3 as the DFS and do not have
access to HDFS file system I tried using a s3 directory as checkpoint directory but I run
into below exception:

Exception in thread "main" java.lang.IllegalArgumentException: Wrong FS: s3n://<folder-path>,
expected: file:///

at org.apache.hadoop.fs.FileSystem.checkPath(

at org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(

If I set checkpoint interval to -1 to avoid checkpointing the driver just hangs after 3 or
4 iterations.

Is there some way I can set the default FileSystem to S3 for Spark or any other option?


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