cldb startup error,in a Greenplum MR hadoop PoC

When I start warden ,I get this error. the sofeware is Greenplum MR hadoop 1.2,we will do a poc for a telecom company,please help.

Exception in thread "main" java.lang.UnsatisfiedLinkError: /opt/mapr/lib/libMapRClient.so.1: /opt/mapr/lib/libMapRClient.so.1: wrong ELF class: ELFCLASS64 (Possible cause: architecture word width mismatch) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1807) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1732) at java.lang.Runtime.loadLibrary0(Runtime.java:823) at java.lang.System.loadLibrary(System.java:1028) at com.mapr.fs.Rpc.<clinit>(Rpc.java:111) at com.mapr.fs.cldb.CLDB.<init>(CLDB.java:59) at com.mapr.fs.cldb.CLDB.main(CLDB.java:307) Header: hostName: mdw, Time Zone: Pacific Standard Time, processName: cldb, processId: 16012, MapR Build Version: 1.2.0.12140EMC 2012-02-01 20:40:07,776 INFO com.mapr.fs.cldb.CLDB [main]: Initializing CLDB 2012-02-01 20:40:07,776 INFO com.mapr.fs.cldb.CLDB [main]: Loading properties file : /opt/mapr/conf/cldb.conf 2012-02-01 20:40:07,901 INFO com.mapr.fs.cldb.counters.CLDBMetrics [main]: Initializing CLDB Metrics with serviceName: cldbServer 2012-02-01 20:40:07,904 INFO com.mapr.fs.cldb.CLDB [main]: CLDBInit: Using hostname file /opt/mapr/hostname 2012-02-01 20:40:07,905 INFO com.mapr.fs.cldb.CLDB [main]: CLDBInit: Using hostid file /opt/mapr/hostid 2012-02-01 20:40:07,905 INFO com.mapr.fs.cldb.CLDB [main]: CLDB Startup 2012-02-01 20:40:07,905 INFO com.mapr.fs.cldb.CLDB [main]: CLDB Properties from configuration file: {cldb.jmxremote.port=7220, cldb.web.port=7221, cldb.port=7222, cldb.zookeeper.servers=mdw:5181, cldb.numthreads=10, cldb.min.fileservers=1, hadoop.version=0.20.2} 2012-02-01 20:40:07,905 INFO com.mapr.fs.cldb.CLDB [main]: CLDB Command line args: /opt/mapr/conf/cldb.conf 2012-02-01 20:40:07,905 INFO com.mapr.fs.cldb.CLDB [main]: CLDBInit: Initializing CLDB 2012-02-01 20:40:07,905 INFO com.mapr.fs.cldb.CLDB [main]: CLDBInit: Starting RPCServer on port 7222 with num thread 20 and heap size of 252(MB)