sentry is down runbook

README.md

@@ -18,6 +18,7 @@ The aim of this project is to have a quick guide of what to do when an emergency
 * [SSL certificate expires](troubleshooting/ssl_cert.md)
 * [GitLab registry is down](troubleshooting/gitlab-registry.md)
 * [Sidekiq stats no longer showing](troubleshooting/sidekiq_stats_no_longer_showing.md)
+* [Sentry is down](troubleshooting/sentry-is-down.md)
 ### Replication fails

troubleshooting/sentry-is-down.md

+# Sentry is down and gives error 500
+
+## Symptoms
+
+If sentry.gitlap.com returns http 500 status code.
+
+## Possible checks
+
+1. Login to the sentry.gitlap.com and check `supervisor` service status
+
+    ```
+    sudo service supervisor status
+    ```
+
+    Start the service if it is down.
+
+1. Check redis service status:
+
+
+    ```
+    sudo service redis-server status
+    ```
+
+    Start the service, if it is down.
+
+1. Check postgresql service status:
+
+    ```
+    sudo service postgresql status
+    ```
+
+   Start the service, if it is down.