same Server ID for original and test servers
Asked by Vamsi Krishna Reddy:

We are planing to move confluence server to new machine with IP differ, we are testing the process and currently running confluence 3.4, we copied the data to new server and brought up, but I noticed that original server and test server have same Server IDs, does It cause Performance or License Issues or any other Issues, Please let me know.

one more Doubt: Is there any possibility to take users and groups backup excluding data and other things?

Thanks in advance.Thanks!

Vamsi Krishna


Answers:
author: Maarten Cautreels
body: Hi Vamsi,

It shouldn't be a big issue although you can change it. There's a knowledge base article explaining how: [Changing Server ID for Test Installations](https://confluence.atlassian.com/jirakb/changing-server-id-for-test-installations-285839562.html)

Hope this helps.

Best,

Maarten

comments: author: Vamsi Krishna Reddy
body: Thanks Maarten,

We need to upgrade from 3.4(stand alone linux using mysql 3.0.95 ) to 3.5 then 4 then 6.

Can you provide a step by step documentation for upgrading and can you let me know where the attachments and other contents will be saved, that would be great, if you provide

Thanks!

Vamsi Krishna


author: Maarten Cautreels
body: [@Vamsi Krishna Reddy](/t5/user/viewprofilepage/user-id/1355527) I don't have any hands-on experience with that upgrade path but according to the [Confluence upgrade guide](https://confluence.atlassian.com/ug/confluence-upgrade-guide-939498662.html) the path is a little different. You should go from 3.4 -\> 3.5.17 -\> 5.0.3 -\> 6.x.

You can check the upgrade guides for each of those versions for more details:

* [Confluence 3.5 Upgrade Notes](https://confluence.atlassian.com/doc/confluence-3-5-upgrade-notes-224398193.html)
* [Confluence 5.0 Upgrade Notes](https://confluence.atlassian.com/doc/confluence-5-0-upgrade-notes-302809561.html)
* [Confluence 6.0 Upgrade Notes](https://confluence.atlassian.com/doc/confluence-6-0-upgrade-notes-844235311.html)

And if you really want to be sure, get in touch with one of the [Atlassian Partners in your area](https://www.atlassian.com/partners/search) or [Atlassian Support](https://support.atlassian.com).

Hope this helps.

Best,

Maarten


author: Vamsi Krishna Reddy
body: When we try to backup confluence data using Administration \> backup and restore, it throwing an error. PFA

Help me to get out of it.

Thanks!

Vamsi Krishn![image.png](https://community.atlassian.com/t5/image/serverpage/image-id/22534i60924E5D4B747664/image-size/large?v=v2&px=999 "image.png")a


author: Maarten Cautreels
body: Hi Vamsi,

From the error description "OutOfMemoryError: Java heap space" I would think Confluence does not have enough memory (at least heap space) available to do the backup.

You could have a look at the Knowledge Base Article: [Cannot create or restore XML backup due to OutOfMemory errors](https://confluence.atlassian.com/confkb/cannot-create-or-restore-xml-backup-due-to-outofmemory-errors-128843918.html) but I'm pretty sure you'll have to increase the amount of memory Confluence has available (described as one of the solutions on the knowledge base article).

Best,

Maarten


author: Vamsi Krishna Reddy
body: Thanks Maarteen,

We have 4.5G of confluence.home, and java head memory is 6G, But still facing issues, is it related to any plugins?

Thanks!

Vamsi Krishna


author: Vamsi Krishna Reddy
body: Tried without attachments but no luck.


author: Maarten Cautreels
body: Hi Vamsi,

Than one single option is left:

1. If you still cannot export due to memory issues, [export all your large spaces](http://confluence.atlassian.com/x/KSEC) individually, and import one by one. Both confluence instances (the one you are exporting from and the one you are importing into) need to be the same version.

Best,

Maarten


author: Vamsi Krishna Reddy
body: Fine,

Then what about up-gradation, we can not with out backup, right?

or is there any possibility?

Thanks!

Vamsi Krishna