Community already gone ahead with the explained HA Solution below. HDFS-1623
Yes, there were alternative solution proposed before (using backupNode approach) as well. like HDFS-2124,HDFS-2064. Not much work done there. >to come back to one of my previous questions: is replacing (now >deprecated) secondary namenodes with backup namenodes a future proof >idea, or should I maybe go for the new HA architecture right away? I should say yes. Regards, Uma ________________________________________ From: Jan Van Besien [ja...@ngdata.com] Sent: Thursday, August 16, 2012 3:21 PM To: user@hadoop.apache.org Subject: Re: checkpointnode backupnode hdfs HA On 08/16/2012 10:37 AM, Uma Maheswara Rao G wrote: > Don't confuse with the backupnode/checkpoint nodes here. > > The new HA architecture mainly targetted to build HA with Namenode states. Thanks, your explanation is already helpful. If you say "the new HA architecture", does this mean that the (older) ideas to extend the backupnode functionality to provide (warm) standby as explained here https://issues.apache.org/jira/browse/HADOOP-4539?focusedCommentId=12674954&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12674954 are no longer valid? Or to come back to one of my previous questions: is replacing (now deprecated) secondary namenodes with backup namenodes a future proof idea, or should I maybe go for the new HA architecture right away? thanks Jan
