Registry Refresh

The registry refresh process is used to obtain current component information for display in the Enhanced 3270 User Interface (enhanced 3270UI). The information gathered is about Hub Tivoli Enterprise Monitoring Servers, Data Retrieval Agents, Managed System Lists, and Managed System Names.

The enhanced 3270UI uses information (names, IP addresses, member lists, etc.) about hub monitoring servers, Data Retrieval Agents, Managed System Lists, and Managed System Names to satisfy queries issued from the enhanced 3270UI workspaces. This information changes over time as hub monitoring server, remote monitoring server, and managed systems are started, stopped, and recycled. The enhanced 3270UI must have up to date information about each of these components to successfully retrieve complete information for display in the enhanced 3270UI.

The process used by the enhanced 3270UI to obtain current information about these components is called Registry Refresh. The Registry is the cache of information (in each Tivoli Omegamon Manager address space) about each of these components (hub monitoring servers, Data Retrieval Agents, Managed System Lists, and Managed System Names) that is Refreshed periodically to maintain currency with component changes. Typically, this Registry Refresh occurs within a Tivoli Omegamon Manager address space every five minutes, and this refresh obtains current information about each of the components listed in the previous sentence. This refreshed information is obtained by performing queries to several monitoring server tables, namely the O4SRV.INODESTS and O4SRV.TNODELST tables.

If component changes occur between Registry Refreshes (an OMEGAMON agent is started or stopped, or a CICS region (a managed system) is started, for example), the Registry is out of date until the next Registry Refresh occurs, which means an enhanced 3270UI workspace that attempts to gather data from that OMEGAMON agent or about that CICS region will not result in complete data being returned to the enhanced 3270UI. If you view a workspace and there appears to be missing data rows for any part of the workspace, you can manually force a Registry Refresh.

There are three ways to force a Registry Refresh:
  1. On the enhanced 3270UI command line, type: rrefresh
  2. Select Tools > Registry Refresh from the menu bar.
  3. Use the MVS modify command from the system console as follows: /F eif,REGREFRESH, where eif is the started task for the enhanced 3270UI address space.