Blocked hosts list for applications
Hosts are automatically added to the blocked hosts list if the service cannot be started
and initialized on a host and the service retry limit specified in the application profile has been
exceeded.
Note: Application level host blocking is not applicable to IBM® Spectrum Symphony Developer Edition.
Instead, if you use IBM Spectrum Symphony Developer Edition, you
can use service level host blocking.
A blocked host is no longer available as a resource for that application. The advantage is that the system does not continuously try to start services on a host that is lacking vital software or hardware requirements. If you modify your application profile or upgrade your application in any way, the list is cleared and all hosts previously on the blocked hosts list are now eligible to have services started on them.
Cluster administrators
can click the Hosts Blocked for Application tab to complete these tasks for
one or more applications from the list:
- View and unblock blocked hosts.
- Retrieve the log files associated with the blocked hosts.