Zend Server User Guide > Reference > Notifications

Notifications

The following table represents all the possible notifications that may appear in the Notification Center while working with Zend Server.

Name	Description
Component not installed	This notification is displayed when Zend Server identifies a Zend component that is not installed, and that should be according to the database blueprint.
Component not loaded	This notification is displayed when Zend Server identifies a Zend component that is not loaded, and that should be according to the database blueprint.
Database connection restored	This notification is displayed when Zend Server has restored a database connection for a server.
Failed to add server	This notification is displayed when Zend Server failed to add a server to a cluster.
Failed to define	This notification is displayed when Zend Server failed to define an application.
Failed to deploy	This notification is displayed when Zend Server failed to deploy an application.
Failed to deploy library	This notification is displayed when Zend Server failed to deploy a library.
Failed to disable server	This notification is displayed when Zend Server failed to disable a server in a cluster.
Failed to enable server	This notification is displayed when Zend Server failed to enable a server in a cluster.
Failed to force remove server	This notification is displayed when Zend Server failed to force remove a server from a cluster.
Failed to health check	This notification is displayed when Zend Server failed to health check an application.
Failed to redeploy	This notification is displayed when Zend Server failed to redeploy an application.
Failed to remove	This notification is displayed when Zend Server failed to remove an application.
Failed to remove library	This notification is displayed when Zend Server failed to remove a library.
Failed to remove server	This notification is displayed when Zend Server failed to remove a server to a cluster.
Failed to rollback	This notification is displayed when Zend Server failed to roll back an application.
Failed to update	This notification is displayed when Zend Server failed to update an application
Failed to update library default version	This notification is displayed when Zend Server failed to set a library as the default library version.
Graceful shutdown failed	This notification is displayed if Zend Server fails to perform a graceful shutdown while scaling down a cluster.
Invalid license	This notification is displayed when the Zend Server license you are currently using has expired or is invalid.
Job Queue reached a high concurrency level	This notification is displayed when Zend Job Queue reaches its defined high concurrency level.
Library Update Available	This notification is displayed when Zend Server identifies the availability of an update for a deployed library.
License is about to expire	This notification is displayed when a Zend Server license is about to expire
Mail server settings are needed	This notification is displayed when Zend Server attempts to send an email, and mail settings are not defined.
Mismatched component directive	This notification is displayed when Zend Server identifies a mismatch in the value of a Zend component directive, compared with the blueprint saved on the database.
Mismatched extension directive	This notification is displayed when Zend Server identifies a mismatch in the value of a PHP extension directive, compared with the blueprint saved on the database.
Missing Virtual Host	This notification is displayed when Zend Server identifies a virtual host is missing.
Modified Virtual Host	This notification is displayed when Zend Server identifies an existing virtual host has been edited.
Offline daemon	This notification is displayed when one of the Zend Server daemons is not running (ZDD, ZQD, SCD, JB and Monitor Node).
Offline server	This notification is displayed when one of the servers in the cluster goes offline.
PHP extension not loaded	This notification is displayed when Zend Server identifies a PHP extension that is not loaded, and that should be according to the database blueprint
PHP extension not installed	This notification is displayed when Zend Server identifies a PHP extension that is not installed, and that should be according to the database blueprint.
Restart required	This notification is displayed when Zend Server requires a restart to apply changes.
Session Clustering is disabled	This notification is displayed when Session Clustering is disabled since the PHP session directive 'session.save_handler' is set to 'files' and not 'cluster'.
Session Clustering failed to locate backup servers	This notification is displayed if the Session Clustering daemon fails to store sessions on a backup server.
Sessions may not be tracked	This notification is displayed when Session Clustering is activated without the
Web server configuration error	This notification is displayed when Zend Server identifies a Web server configuration error (e.g., syntax error in Web server configuration file).
Web server is not responding	This notification is displayed when Zend Server is not responding (e.g., if Apache is down).
You have reached the maximum amount of allowed servers for this license	This notification is displayed when the server you added to a cluster exceeded the amount of servers allowed in the license.
Zend Server daemon is offline	This notification is displayed when a system failure occurs and the Zend Server daemon fails to report.

	Read Also
	Working with the Notification Center