[Pulp-list] Content server Performance

[Bin Li (BLOOMBERG/ 120 PARK)]

We recently add more clients to use the pulp content server. The processes run out the file descriptor first. We then increased both nginx and pulp-content by creating a override.conf 
/etc/systemd/system/pulpcore-content.service.d # cat override.conf 
[Service]
LimitNOFILE=65536

and updated nginx.conf
# Gunicorn docs suggest this value.
worker_processes 1;
events {
    worker_connections 10000;  # increase if you have lots of clients
    accept_mutex off;  # set to 'on' if nginx worker_processes > 1
}

worker_rlimit_nofile    20000;


Now we are keep getting this error.
2021/06/22 11:26:36 [error] 78373#0: *112823 upstream timed out (110: Connection timed out) while connecting to upstream, client:

It looks like pulp-content server cannot keep up with requests. Is there anything we could do to increase the performance of the content server?
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