Ambari: Adding Data Node failed

After adding adding a DataNode on a fresh added host/node to the ambari hadoop-cluster, the startup of the datanode failed.

The log says: “Path xxx should be specified as a URI in configuration files

Quite strange since it is a clean node, i just added after installing the OS (CentOS 6.6)

The solution i found:

  • -umount the hdfs-data-partition
  • format it
  • mount
  • start the DataNode

Don’t know if it was coincidence, because it doesn’t make any sense to me, but it worked out.

Ambari: 1.7


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