Apache Hadoop 1.1.2 Release Notes

These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.

  • HADOOP-9115 | Blocker | Deadlock in configuration when writing configuration to hdfs

This fixes a bug where Hive could trigger a deadlock condition in the Hadoop configuration management code.

  • HADOOP-8567 | Major | Port conf servlet to dump running configuration to branch 1.x

Users can use the conf servlet to get the server-side configuration. Users can

  1. connect to http_server_url/conf or http_server_url/conf?format=xml and get XML-based configuration description;
  2. connect to http_server_url/conf?format=json and get JSON-based configuration description.
  • HDFS-5996 | Major | hadoop 1.1.2. hdfs write bug

someone has discovered this bug and it has been resolved

Fixed a bug in TaskTracker's heartbeat to keep it under control.