I”m confused now. Our db has already been upgraded. We went directly from Jul2015-Sp3 to Jun2016-SP2. Was there a feature release in-between these 2? Am I ok using the same dbfarm for both these releases? I will try to schedule upgrades as the fixes come out in the future. Thanks - Lynn From: users-list <users-list-bounces+lcj34=cornell.edu@monetdb.org<mailto:users-list-bounces+lcj34=cornell.edu@monetdb.org>> on behalf of Brian Hood <brianh6854@googlemail.com<mailto:brianh6854@googlemail.com>> Reply-To: Communication channel for MonetDB users <users-list@monetdb.org<mailto:users-list@monetdb.org>> Date: Sunday, October 16, 2016 at 2:30 PM To: Communication channel for MonetDB users <users-list@monetdb.org<mailto:users-list@monetdb.org>> Subject: Re: new monetdb version, old farm Hi Lynn, Like Soerjd mentioned previously you should upgrade in sequence so try not get behind in releases. Also as I found out the hard way it's impossible to downgrade. It plays havoc with your BBP version and catalog from memory. Regards, Brian Good On Oct 16, 2016 1:21 PM, "Lynn Carol Johnson" <lcj34@cornell.edu<mailto:lcj34@cornell.edu>> wrote: To verify: You¹re saying my upgrade from Jul2015-SP3 to Jun2016-SP2 does not require a database recreation as the farm is not that old? This would be great. Thanks - Lynn On 10/14/16, 5:08 PM, "users-list on behalf of Martin Kersten" <users-list-bounces+lcj34=cornell.edu@monetdb.org<mailto:cornell.edu@monetdb.org> on behalf of martin@monetdb.org<mailto:martin@monetdb.org>> wrote:
Upgrade paths are automatic from the previous feature release, unless we have announced that a re-create is necessary due to internal changes that can not be handled automatically. Upgrades from bug-fix releases never require a database re-creation.
Upgrading over multiple feature releases, i.e. a very old dbfarm, is not supported. A dump and restore is the way to go.
regards, Martin
On 14/10/16 22:27, Lynn Carol Johnson wrote:
Hello -
My understanding is you should not run a new monetdb version with a dbfarm created from an older version. We have just updated our system from a Jul2015-SP3 version to the latest Jun2016-SP2 version.
I have created a new db farm and plan to recreate the tables in the new farm.
My question; How do you remove the old dbfarm? Our data is quite large (1.8 T) and I¹d like to retrieve this space for other use. While I can start the db against the new farm, I can find no method of removing the old dbfarm to reclaim this space.
Thanks - Lynn
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