I know one can't do a rolling upgrade, but I'm wondering/asking about something else. Not whether I can do a rolling upgrade, but whether I can do any sort of upgrade that let's me go from 0.92 to 0.96 without first having to upgrade to 0.94 and then do another upgrade from that to 0.96.
i.e. even if I cannot do a rolling upgrade from 0.92 to 0.96, which I know I cannot do, I am wondering if there is *any* way to go from 0.92 directly to 0.96 without first having to set up 0.94 and go through that 0.94 first.
Thanks, Otis Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support * http://sematext.com/ On Fri, Jan 31, 2014 at 10:10 AM, Ted Yu <[EMAIL PROTECTED]> wrote:
not 100% sure, but I think that the only requirement for the upgrade is that all the hfiles are on the v2 format. If you have some v1 left just trigger a major compaction. other than that I don't remember any other specific change that should prevent the upgrade.
On Fri, Jan 31, 2014 at 4:19 PM, Otis Gospodnetic < [EMAIL PROTECTED]> wrote:
Installed a 0.92.2 on a hadoop 1.2.1. Loaded a bit of data, 20 odd regions or so. Shutdown hbase. Installed hbase 0.98.0-hadoop1 RC0 Followed the upgrade instructions in the manual for 0.96 ensuring no hfilev1 (as Matteo) Started hbase-0.98.0. Looked fine. Loaded more data. Shut it all down. Upgrade hadoop from 1 to 2 (I had some fun because hadoop1 and hadoop2 configs had data and name dirs in different locations) Installed hbase-0.98.0-hadoop2 everywhere Started it up. Started loading more data.
Seems fine looking in logs.
You can use my fedex account sending the first born Otis. Will hang on wall beside all the others.
On Sun, Feb 2, 2014 at 5:42 AM, Otis Gospodnetic <[EMAIL PROTECTED]
Another thing also, I don't know if 0.92 handled compression since I used it for only few weeks, but if you used Snappy or other codecs not coming with the default release, you might want to give it a close look before migrating since it might not be as straight forward as the HFile upgrade.
JM 2014-02-04 Stack <[EMAIL PROTECTED]>:
Jean-Marc Spaggiari 2014-02-04, 12:34
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