Maintain control of your Microsoft 365 data
Post Reply
pmarsh
Lurker
Posts: 2
Liked: never
Joined: Jun 21, 2019 6:42 pm
Full Name: Paul Marsh
Contact:

Error 429 throttling

Post by pmarsh »

Looks like veeam back up is being throttled. Getting Error 429. I'm running 5.0.1.252 what do I need to do?

TIA
Mike Resseler
Product Manager
Posts: 8044
Liked: 1263 times
Joined: Feb 08, 2013 3:08 pm
Full Name: Mike Resseler
Location: Belgium
Contact:

Re: Error 429 throttling

Post by Mike Resseler »

Paul,

We have different mechanisms in place to avoid throttling as much as possible, however, throttling will occur and it depends on many items. Are your jobs succeeding?
pmarsh
Lurker
Posts: 2
Liked: never
Joined: Jun 21, 2019 6:42 pm
Full Name: Paul Marsh
Contact:

Re: Error 429 throttling

Post by pmarsh »

Yes jobs are finishing successfully just errors and warning 429
Mildur
Product Manager
Posts: 8549
Liked: 2223 times
Joined: May 13, 2017 4:51 pm
Full Name: Fabian K.
Location: Switzerland
Contact:

Re: Error 429 throttling

Post by Mildur »

For Sharepoint and One Drive throttling, you could use the „backup accounts“- feature from vbo365:

https://helpcenter.veeam.com/docs/vbo36 ... tml?ver=50

Exchange Throttling shouldn‘t be much of a problem, because application impersonation is used.
Product Management Analyst @ Veeam Software
Mike Resseler
Product Manager
Posts: 8044
Liked: 1263 times
Joined: Feb 08, 2013 3:08 pm
Full Name: Mike Resseler
Location: Belgium
Contact:

Re: Error 429 throttling

Post by Mike Resseler »

Well, your jobs finish so that is a good thing.

Some items to check will be your threads (more is not always a good thing) and what Mildur stated above.

How many threads are you using?
Are we talking about Exchange or SharePoint/ OneDrive?
Are you using multiple backup accounts?
Stabz
Veeam Legend
Posts: 113
Liked: 7 times
Joined: Apr 07, 2017 7:40 am
Full Name: Philippe DUPUIS
Contact:

Re: Error 429 throttling

Post by Stabz »

Hello guys,

I met the same problem, my jobs are very slow and my Sharepoint job has a lot 429 errors...

I use a backup account with basic authentication do I have to switch to Modern auth ?
I tryed to reduce the number of threads but the problem persist.

In the configuration I notice that is recommanded to assign auxiliary backup accounts to process Sharepoint & OneDrive data. How many accounts should I need to create ?
Mildur
Product Manager
Posts: 8549
Liked: 2223 times
Joined: May 13, 2017 4:51 pm
Full Name: Fabian K.
Location: Switzerland
Contact:

Re: Error 429 throttling

Post by Mildur »

This is difficult to say. We have started with 5 accounts, but they were not enough. After that, i had deployed 10 more and it was working. It was for a initial backup of 1 TB Data. The Sharepoint List Item Count was above a million with many small files.

Ten to hundred thousands of small files would benefit from multiple backup accounts.
For a few hundred big files should one backup account be enough.
Product Management Analyst @ Veeam Software
Stabz
Veeam Legend
Posts: 113
Liked: 7 times
Joined: Apr 07, 2017 7:40 am
Full Name: Philippe DUPUIS
Contact:

Re: Error 429 throttling

Post by Stabz »

Hum ok I ll try with 5 accounts (I have 3000 users) this method works with basic and modern auth ?

Is there a way to automate this maybe with modern auth ?
ITENOS-Kai
Influencer
Posts: 20
Liked: 1 time
Joined: Jul 17, 2020 10:13 am
Full Name: Kai Weldert
Contact:

Re: Error 429 throttling

Post by ITENOS-Kai » 1 person likes this post

Stabz,
check this link:
https://www.veeam.com/blog/automate-aux ... ffice.html

With the Auxiliary Backup script you can easily create more accounts.
If you have enforced MFA in your whole organization you have to set the app password for each created user manually, as far as i know.
Stabz
Veeam Legend
Posts: 113
Liked: 7 times
Joined: Apr 07, 2017 7:40 am
Full Name: Philippe DUPUIS
Contact:

Re: Error 429 throttling

Post by Stabz »

Thanks!
Post Reply

Who is online

Users browsing this forum: No registered users and 17 guests