[389-users] Rolling upgrade of multiple servers

[Rich Megginson]

On 01/31/2013 07:05 AM, Bright, Daniel wrote:
>
> Hello,
>
> I am performing a rolling upgrade of my 389-ds servers in my 
> environment. Currently they are running version 1.2.5 of directory 
> server, and 1.1.10 of administration server on 32-bit hardware. 
> Currently I have 6 servers using MMR replication and I am planning on 
> replacing the servers one at a time, upgrading from OEL5 32-bit to 
> OEL6 64-bit and to version 1. 2.10.2 of directory server. Until the 
> upgrades are completed, there will be a period of time where I have 
> mixed servers, some 32-bit 1.2.5 and some 64-bit 1.2.10.2. I have done 
> this in a test environment with 4 vm’s, and was able to detach a 
> server from the MMR group, and then re-attach and initialize the new 
> server successfully, with replication of the userRoot working 
> seemingly fine. However, there are two issues I have noticed:
>
> 1 – any schema changes made on either the new servers or the old ones 
> will not replicate over.
>

schema changes made over LDAP?  Yes, schema replication is tricky 
because it is "single" master.

> 2 – When I view the attributes tab on 389-console on the new 64-bit 
> server, all attributes appear under “Standard Attributes”, however 
> when I view the attributes tab on the 32-bit servers, about half of 
> these are under the “User Defined Attributes” section. I have an idea 
> of why this is but I want to hear someone else’s opinion on it first.
>

User defined attributes are attributes that have been added via LDAP (or 
the console which uses LDAP).
>
> Also, if anyone has done this before and would like to share any 
> issues they ran into I would be grateful. I’m wondering if the schema 
> replication issue will go away once all servers are using 1.2.10.2.
>
> Thanks in advance.
>
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