[jira] Created: (HADOOP-6679) add retry logic to NetUtils.createSocketAddr() when hostname resolution fails

add retry logic to NetUtils.createSocketAddr() when hostname resolution fails - Key: HADOOP-6679 URL: https://issues.apache.org/jira/browse/HADOOP-6679 Project: Hadoop Common

measuring the split reading time in Hadoop

Hi all, I wanted to measure the time it takes to read input split for a map task. For my cluster, I am interested in measuring the overhead of fetching the input to a map task over the network as opposed to reading from the local disk. Is there an easy way to instrument some function to log this