Not that if you use ssh tunnels to access any of the Hadoop GUIs that were previously on analytics1010, you should now use analytics1001 instead.
> On Jan 16, 2015, at 11:47, Andrew Otto <[email protected]> wrote: > > Done! analytics1001 and analytics1002 are now the Hadoop NameNodes, and the > analytics1001 is the YARN master. > > Thanks all! > > -Ao > > > > >> On Jan 16, 2015, at 10:46, Andrew Otto <[email protected] >> <mailto:[email protected]>> wrote: >> >> I am starting this now. >> >> >>> On Jan 15, 2015, at 11:34, Andrew Otto <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Hi all, >>> >>> I’m in the middle of a (slow) upgrade process for the Hadoop cluster. >>> Currently, we are running CDH 5.0.2, and would like to upgrade to CDH 5.3. >>> There are several steps to this process, the first of which is upgrading >>> our OS to Ubuntu Trusty. >>> >>> Along the way, I’m replacing our current NameNodes with different hardware. >>> I am ready to do this now. I don’t see much opportunity to schedule this >>> over the next couple of weeks, due to All-Hands travel, so I’d like to >>> schedule this for tomorrow morning (Friday January 16th). >>> >>> I expect this to be relatively simple downtime, that will only take a few >>> minutes. Just in case, I’d like to reserve 2 hours of time. >>> >>> So, unless there are serious objections, plan for Hadoop to be offline from >>> >>> 2015-01-16 15:45 - 17:45 UTC >>> >>> Also, please don’t start jobs before this time slot that you think will >>> take a long time. If there are running jobs, I either can’t shut down the >>> cluster, or I will have to kill the jobs. If I see running jobs, I’ll try >>> to reach out to you before I kill anything. >>> >>> If anyone is interested in a rough migration plan, it is here: >>> >>> https://wikitech.wikimedia.org/wiki/Analytics/Cluster/Hadoop/Administration#Migrating_to_new_HA_NameNodes >>> >>> <https://wikitech.wikimedia.org/wiki/Analytics/Cluster/Hadoop/Administration#Migrating_to_new_HA_NameNodes> >>> >>> Thanks all! >>> >>> -Ao >>> >>> >> >
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