How to "register" the cfs:// scheme

(3 posts) (2 voices)

• Started 1 year ago by matt
• Latest reply from matt
• This topic is resolved

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1. 

   matt
   Member

   I have a web application that I need to convince to read files out of cfs. The code calls org.apache.hadoop.fs.Path.getFileSystem() on an instance of a path object initialized with: cfs:///root/subdir/

   But when I call that, I get:

   java.io.IOException: No FileSystem for scheme: cfs
   at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1307)
   at org.apache.hadoop.fs.FileSystem.access$100(FileSystem.java:65)
   at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1328)
   at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:226)
   at org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)

   I know the hadoop classes are being loaded from the jars bundled with brisk, but I'm not sure how to convince this method call that my path is valid with cfs:// in front of it. If I drop that, I just get a reference to a local filesystem, which coincidentally exists.

   Thoughts?

   Posted 1 year ago #
2. 

   tjake
   Moderator

   Hi Matt,

   Assuming you have setup your classpath correctly you need the following in your core-site.xml

   <property>
   <name>fs.cfs.impl</name>
   <value>org.apache.cassandra.hadoop.fs.CassandraFileSystem</value>
   </property>

   Posted 1 year ago #
3. 

   matt
   Member

   Hm,

   Looks like I'm not picking up my core-site.xml from the classpath. Drat. Thanks.

   Posted 1 year ago #

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