openstack/openstack-manuals
Code Issues Proposed changes
492a219e86
openstack-manuals/doc/install-guide/source/environment-sql-database.rst
Ian Y. Choi 36d003613e [install] Mentions SQL max connection error 
It is worth mentioning about the maximum number of
connections error messages to give hints how to deal
with such kind of errors.

Change-Id: Iee67650c97c40db49a1ee23ea4015d25ec380978
Closes-Bug: #1749681
2018-03-13 14:33:31 +00:00

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SQL database

Most OpenStack services use an SQL database to store information. The database typically runs on the controller node. The procedures in this guide use MariaDB or MySQL depending on the distribution. OpenStack services also support other SQL databases including PostgreSQL.

Note

If you see Too many connections or Too many open files error log messages on OpenStack services, verify that maximum number of connection settings are well applied to your environment. In MariaDB, you may also need to change open_files_limit configuration.

environment-sql-database-*