[ https://issues.apache.org/jira/browse/HDFS-10167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinayakumar B deleted HDFS-10167: --------------------------------- > CLONE - Erasure Coding: when recovering lost blocks, logs can be too verbose > and hurt performance > ------------------------------------------------------------------------------------------------- > > Key: HDFS-10167 > URL: https://issues.apache.org/jira/browse/HDFS-10167 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: dragon > Assignee: Rui Li > > When we test reading data with datanodes killed, > {{DFSInputStream::getBestNodeDNAddrPair}} becomes a hot spot method and > effectively blocks the client JVM. This log seems too verbose: > {code} > if (chosenNode == null) { > DFSClient.LOG.warn("No live nodes contain block " + block.getBlock() + > " after checking nodes = " + Arrays.toString(nodes) + > ", ignoredNodes = " + ignoredNodes); > return null; > } > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)