DataStax Support Forums » User Favorites: cloneman

DataStax Support Forums » User Favorites: cloneman cloneman Software, Support, and Training for Apache Cassandra en-US Thu, 20 Jun 2013 06:10:22 +0000 http://bbpress.org/?v=1.0.3 <![CDATA[Search]]> q http://www.datastax.com/support-forums/search.php khahn on "CFS is not accessable" http://www.datastax.com/support-forums/topic/cfs-is-not-accessable#post-8334 Tue, 08 Jan 2013 23:42:48 +0000 khahn 8334@http://www.datastax.com/support-forums/ Are you trying to connect to an external address? If so, and you don't mind experimenting, try this: In the core-site.xml file, change the property fs.default.name from <code>file:///</code> to <code>cfs:<listen_address>:<rpc_port></code>. This eliminates the need to specify the IP address or hostname for MapReduce jobs and all other calls to Hadoop. For more information, see <a href="http://www.datastax.com/docs/datastax_enterprise2.2/solutions/about_hadoop#connecting-to-external-addresses" rel="nofollow">http://www.datastax.com/docs/datastax_enterprise2.2/solutions/about_hadoop#connecting-to-external-addresses</a>. To create a new Cassandra File System (CassandraFS), try this: <pre><code><property> <name>fs.cfs-<filesystem name>.impl</name> <value>com.datastax.bdp.hadoop.cfs.CassandraFileSystem</value> </property></code></pre> For more information see <a href="http://www.datastax.com/docs/datastax_enterprise2.2/solutions/hadoop_multiple_cfs" rel="nofollow">http://www.datastax.com/docs/datastax_enterprise2.2/solutions/hadoop_multiple_cfs</a>. cloneman on "CFS is not accessable" http://www.datastax.com/support-forums/topic/cfs-is-not-accessable#post-8026 Wed, 19 Dec 2012 23:34:08 +0000 cloneman 8026@http://www.datastax.com/support-forums/ I think that I might miss some configuration. when I tried to run hadoop fs on top of CFS, got the following error: >dse hadoop fs -ls / Exception in thread "main" java.lang.NullPointerException at com.datastax.bdp.hadoop.cfs.CassandraFileSystemThriftStore.initConsistencyLevels(CassandraFileSystemThriftStore.java:263) at com.datastax.bdp.hadoop.cfs.CassandraFileSystemThriftStore.initialize(CassandraFileSystemThriftStore.java:202) at com.datastax.bdp.hadoop.cfs.CassandraFileSystem.initialize(CassandraFileSystem.java:67) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:123) at org.apache.hadoop.fs.FsShell.init(FsShell.java:82) at org.apache.hadoop.fs.FsShell.run(FsShell.java:1745) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at org.apache.hadoop.fs.FsShell.main(FsShell.java:1895) In addition to the regular multi-nodes DataStax Enterprise installation (my cassandra works well), I only changed core-site.xml under $DSE_HOME/resources/hadoop/conf, as following, <property> <name>fs.default.name</name> <value>cfs://9.21.55.151:9160/</value> </property> What I installed is dse-2.2.1 using a tar ball. any idea about the error?