The OrientDB Studio (web interface) has a very short timeout before it wants you to log in again. Where can I change the timeout duration? Google did not help and searching through the config directory also came up with nothing.
Edit the file <orientdb_folder>/config/orientdb-server-config.xml and add the following entries in the <orient-server><properties>...</properties></orient-server> section:
<entry value="9999999" name="network.http.sessionExpireTimeout"/>
<entry value="9999999" name="network.token.expireTimeout"/>
And restart the server. That worked for me.