Troubleshooting high scale deployments

This page provides troubleshooting guidance for high scale Mattermost deployments with 100 users or more.

If these steps do not resolve the issue, and you have a paid subscription to a Mattermost offering, please reach out to our customer support team via our online support portal.

Additionally, peer-to-peer support is available for all Mattermost users in our troubleshooting forum and on our community server.

My system keeps hanging when I search for a message in Mattermost

First, check how many messages have been posted on your system, including deleted posts and posts made using automations.

Go to the System Console > Reporting > Site Statistics and review the Total Posts figure reported. If this figure is above 3,000,000 posts, we recommend deploying Elasticsearch alongside your Mattermost server for improved search performance. Follow our guides to deploy an Elasticsearch server.