hadoop - Hortonworks Data node install: Exception in secureMain -


am trying install hortonworks hadoop single node cluster. able start namenode , secondary namenode, datanode failed following error. how solve issue?

2014-04-04 18:22:49,975 fatal datanode.datanode (datanode.java:securemain(1841)) - exception in securemain java.lang.runtimeexception: although unix domain socket path configured /var/lib/hadoop-hdfs/dn_socket, cannot start localdataxceiverserver because libhadoop cannot loaded."

see native libraries guide. make sure libhadoop.so available in $hadoop_home\bin. logs message:

info util.nativecodeloader - loaded native-hadoop library

if instead find 

info util.nativecodeloader - unable load native-hadoop library platform... using builtin-java classes applicable

then means libhadoop.so not available, , you'll have investigate why. alternatively can turn off hdfs shortcircuit if wish, or enable legacy short-circuit instead using dfs.client.use.legacy.blockreader.local, remove libhadoop dependency. reckon better find out what's problem library.

make sure read , understand articles linked before asking further questions.


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