No user-defined functions (UDFs).

No stack trace on core dump.

You cannot set this up as a source or a replica (no replication).

Very large result sets may be unusable on low memory systems.

You cannot connect to an embedded server from an outside process with sockets or TCP/IP. However, you can connect to an intermediate application, which in turn can connect to an embedded server on the behalf of a remote client or outside process.

libmysqld does not support encrypted connections. An implication is that if an application linked against libmysqld establishes a connection to a remote server, the connection cannot be encrypted.

InnoDB is not reentrant in the embedded server and cannot be used for multiple connections, either successively or simultaneously.

The Event Scheduler is not available. Because of this, the event_scheduler system variable is disabled.

The Performance Schema is not available.

The embedded server cannot share the same secure_file_priv directory with another server. As of MySQL 5.7.8, the default value for this directory can be set at build time with the INSTALL_SECURE_FILE_PRIV_EMBEDDEDDIR CMake option.