Re: Restoring Data to HDFS with distcp from standard input /dev/stdin

2017-08-16 Thread Ravi Prakash
Hi Heitor! Welcome to the Hadoop community. Think of the "hadoop distcp" command as a script which launches other JAVA programs on the Hadoop worker nodes. The script collects the list of sources, divides it among the several worker nodes and waits for the worker nodes to actually do the copying

Error connecting to ZooKeeper server

2017-08-16 Thread Michael Chen
Hi, I've run into a ZooKeeper connection error during the execution of a Nutch hadoop job. The tasks stall on connection error to ZooKeeper server. Here's what I know: 1. ZK connection error is the only known problem, other logs report no issue 2. Error message on YARN NodeManager on one of