Hi Danny,

Thanks for your quick response.  I’m thinking of approach #2, but I’ll discuss 
this with our developers first and see if they have a preference.

--
Fred Seaton
UNIX System Admin
Digital Library Development Center, University of Chicago Library

On Jun 18, 2015, at 5:15 PM, Danny Sokolsky 
<[email protected]<mailto:[email protected]>> wrote:

Hi Fred,

I think doing this on a separate system that you can test outside of your old 
system is a good idea.

There are sort of 2 paths I can think of for you to choose from here.

1)      On your new system, start with 4.x and recreate your old system first, 
including all of the configuration and security database setup, and then 
upgrade.  If by 4.x you mean 4.2, the upgrade would be 4.2 -> 4.2.latest -> 
5.0.latest -> 8.0.3 (or latest at the time).  If you do this, I would recommend 
turning reindexing off in your content database(s) before moving from 4.x, and 
then enabling it when you are running 8.

or

2)      Recreating your configuration on the new 8.0 machine (all of your 
databases, app servers, forests, users, custom roles, custom privileges, and so 
on).  Then restore your databases to the new system, then reindex.

The advantage of doing 1) is that it is easier to recreate your configuration.  
The advantage of 2) is that is it less upgrade steps (not that the upgrade 
steps are hard, they are not hard).  If your system is relatively simple, I 
would try 2) and see how that goes.

Is this a cluster or a single node?  If it is a cluster, you will need to 
recreate the host configurations as well.

-Danny

From: 
[email protected]<mailto:[email protected]>
 [mailto:[email protected]] On Behalf Of Fred Seaton
Sent: Thursday, June 18, 2015 3:00 PM
To: MarkLogic Developer Discussion
Subject: [MarkLogic Dev General] Migrating from ML 4.x to ML 8

Hi,

We’re in the process of migrating from MarkLogic 4.x to 8.x.  We’re not 
interested in doing it in place, so I’m setting up a new server with 8.x and am 
planning to migrate the databases from the old server to the new.  Is there a 
documented set of procedures for doing this?  I’ve read about backup and 
restore, as well as the incompatibilities between the versions, but not much 
more.

Can anyone give me some guidance?

Thanks.

--
Fred Seaton
UNIX System Admin
Digital Library Development Center, University of Chicago Library



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