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Posted to hdfs-dev@hadoop.apache.org by "Suresh Srinivas (Created) (JIRA)" <ji...@apache.org> on 2012/03/14 14:44:38 UTC
[jira] [Created] (HDFS-3092) Enable journal protocol based editlog
streaming for standby namenode
Enable journal protocol based editlog streaming for standby namenode
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Key: HDFS-3092
URL: https://issues.apache.org/jira/browse/HDFS-3092
Project: Hadoop HDFS
Issue Type: Improvement
Components: ha, name-node
Affects Versions: 0.24.0, 0.23.3
Reporter: Suresh Srinivas
Currently standby namenode relies on reading shared editlogs to stay current with the active namenode, for namespace changes. BackupNode used streaming edits from active namenode for doing the same. This jira is to explore using journal protocol based editlog streams for the standby namenode. A daemon in standby will get the editlogs from the active and write it to local edits. To begin with, the existing standby mechanism of reading from a file, will continue to be used, instead of from shared edits, from the local edits.
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