[jira] [Commented] (HDFS-2164) Namenode supports Active and Standby modes; Standby Namenode should be able to able to take up the Active role dynamically, without losing any data.
[ https://issues.apache.org/jira/browse/HDFS-2164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071645#comment-13071645 ] Justin Joseph commented on HDFS-2164: - Konstantin, I have gone through HDFS-2064. Our idea of Standby Namenode matches with your proposal. I went through the patch you have submitted also, it is in line with our implementation. We have tested our solution thoroughly and already deployed in production. We would like to share the challenges we faced & improvements we made to Backup Node. It will be great for us to work together with you on this. > Namenode supports Active and Standby modes; Standby Namenode should be able > to able to take up the Active role dynamically, without losing any data. > > > Key: HDFS-2164 > URL: https://issues.apache.org/jira/browse/HDFS-2164 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: data-node, hdfs client, name-node >Reporter: Justin Joseph > > Namenode should have the capability to play dual roles, either as Active or > Standby, as HA Agent decides. The Standby Namenode should contain the > instance of Backup Namenode inside. When HA Agent forces a switch over, the > Backup Namenode instance should be turned to a normal Namenode instance. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HDFS-2164) Namenode supports Active and Standby modes; Standby Namenode should be able to able to take up the Active role dynamically, without losing any data.
[ https://issues.apache.org/jira/browse/HDFS-2164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067709#comment-13067709 ] Konstantin Shvachko commented on HDFS-2164: --- See HDFS-2064. Is it similar to what you have in mind? > Namenode supports Active and Standby modes; Standby Namenode should be able > to able to take up the Active role dynamically, without losing any data. > > > Key: HDFS-2164 > URL: https://issues.apache.org/jira/browse/HDFS-2164 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: data-node, hdfs client, name-node >Reporter: Justin Joseph > > Namenode should have the capability to play dual roles, either as Active or > Standby, as HA Agent decides. The Standby Namenode should contain the > instance of Backup Namenode inside. When HA Agent forces a switch over, the > Backup Namenode instance should be turned to a normal Namenode instance. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira
