[ https://issues.apache.org/jira/browse/HDFS-6967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daryn Sharp updated HDFS-6967: ------------------------------ Assignee: Eric Payne > DNs may OOM under high webhdfs load > ----------------------------------- > > Key: HDFS-6967 > URL: https://issues.apache.org/jira/browse/HDFS-6967 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode, webhdfs > Affects Versions: 2.0.0-alpha, 3.0.0 > Reporter: Daryn Sharp > Assignee: Eric Payne > > Webhdfs uses jetty. The size of the request thread pool is limited, but > jetty will accept and queue infinite connections. Every queued connection is > "heavy" with buffers, etc. Unlike data streamer connections, thousands of > webhdfs connections will quickly OOM a DN. The accepted requests must be > bounded and excess clients rejected so they retry on a new DN. -- This message was sent by Atlassian JIRA (v6.2#6252)