Hi, thanks, Abhilash Raj

On Wed, Jan 20, 2021 at 17:58, Shashikanth Komandoor <shashikanth.komandoor@gmail.com> wrote:

Hi Team,

       I am currently running Mailman 3 with version 3.3.1 and in 

built postfix version 2.10.1-6 on RHEL 7.5 with PostgreSQL 11.7 version with default values. I am almost running 2000 lists with 128 GB RAM and 24 Cores on a single VM and on which all the mailman 3 components are running.

       It is observed for most of the lists having members more 

than 500 is displaying "Mailman REST API not available. Please restart Mailman Core" message on the postorius window and on running the CURL command over REST API of Mailman it is reaching the time limit 30 seconds and showing the below error.

This is a known issue with the Members API. You can use pagination1 to get the list of Members in batches instead of all in a single request. I'd say a page size of 200~ should be fine, but you should try out on your server and adjust the size.

You can also use the command line to run mailman members ant.example.com to get a list of Members for the list.

Abhilash

*curl: (52) Empty reply from serverNo JSON object could be decoded*

       The same behavior is observed on browsing the held 

messages for few lists either through the browser or through CURL and REST API.

       How to resolve this issue ? What other details I can 

provide to make you get an idea ?

Thanks & Regards, Shashi Kanth.K 9052671936

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