AnsweredAssumed Answered

Mac os x mapr client errors: Could not create FileClient, Error while fetching JobTracker location

Question asked by nhalko on Nov 20, 2012
Latest reply on Nov 26, 2012 by gera
I'm am setting up a mapr client on my mac book as per [SettingUptheClient-macosxclient](http://mapr.com/doc/display/MapR/Setting+Up+the+Client#SettingUptheClient-macosxclient)

Both these files look the same so -N and -C flags were set properly 
local $/opt/mapr/conf/mapr-clusters.conf  
cluster $/opt/mapr/conf/mapr-clusters.conf

__local $ /opt/mapr/hadoop/hadoop-0.20.2/bin/hadoop fs -ls__ 
2012-11-20 16:21:22.483 java[36348:1b03] Unable to load realm info from SCDynamicStore
2012-11-20 16:21:22,7380 ERROR Client fs/client/fileclient/cc/client.cc:301 Thread: 4313980928 Failed to initialize client for cluster Crawl0, error Operation not permitted(1)
ls: Could not create FileClient

and

__local $ /opt/mapr/hadoop/hadoop-0.20.2 $ bin/hadoop job -list__ 
2012-11-20 16:21:53.986 java[36373:1b03] Unable to load realm info from SCDynamicStore
2012-11-20 16:21:54,2435 ERROR Client fs/client/fileclient/cc/client.cc:301 Thread: 4488237056 Failed to initialize client for cluster Crawl0, error Operation not permitted(1) 
12/11/20 16:21:54 ERROR ipc.RPC: FailoverProxy: Failing this Call: jobsToComplete. Error while fetching JobTracker location java.io.IOException: Failed to get cluster information for maprfs:/// 
Exception in thread "main" java.io.IOException: Failed to get cluster information for maprfs:///


Setting these params in local$/opt/mapr/hadoop/hadoop-0.20.2/conf.core-site.xml have had no positive effect. 
_fs.maprfs.impl=com.mapr.fs.MapRFileSystem 
fs.mapr.mempool.size=0_ 

My end goal is to _distcp_ data from maprfs to apache hdfs (I know its backwards) but I'm not able to communicate remotely.  Also, RPC versions are not lining up. But following this guide [Pushing Data from HDFS to MapR-FS](http://mapr.com/doc/display/MapR/Data+Migration) I need to have a working client on our Apache hadoop cluster.

__local $/opt/mapr/hadoop/hadoop-0.20.2 $ bin/hadoop fs -ls hdfs://localhost/__ 
2012-11-20 16:35:55.335 java[36598:1b03] Unable to load realm info from SCDynamicStore 
ls: Protocol org.apache.hadoop.hdfs.protocol.ClientProtocol version mismatch. (client = 61, server = 63)

Outcomes