The version of HADB provided with Sun Java System Application Server Enterprise Edition 8.1 has many new features and improvements.
HADB management is improved by changing the underlying components of the management system. The old hadbm interface functions are maintained with minor modifications. These changes also remove the dependency on SSH/RSH.
The management agent server process (ma) constitutes a domain and keeps the database configuration in a repository. The repository information is distributed among all agents.
The following topics provide more details:
This version of HADB has the following general improvements:
HADB no longer requires SSH/RSH.
Administrator password for HADB management enhances security.
Automatic online upgrade to future versions.
Dependency on a single host is removed.
Heterogeneous configurations of the database is supported. The device paths and history paths can be set individually.
Ability to manage multiple platforms uniformly.
This version of HADB includes the following changes from the previous version.
UDP multicast is now required for network configuration.
The management agent, ma, is now required to be running on all HADB hosts.
New hadbm commands for domain management: hadbm createdomain, hadbm deletedomain, hadbm extenddomain, hadbm reducedomain, hadbm listdomain, hadbm disablehost. New commands for package management: hadbm registerpackage, hadbm unregisterpackage, hadbm listpackage
All hadbm commands have the following new options:
Changes made to hadbm create:
hosts (registers hosts in the domain).
Modified: devicesize is now optional, not required.
The hadbm startnode and hadbm restartnode commands' startlevel option has a new value, clear .
Changes made to hadbm addnodes: New options: set, historypath, devicepath. The inetdsetupdir option was removed.
Changes made to hadbm get and hadbm set: New attributes are historypath (heterogeneous path for history files) and packagename. Attributes eliminated are: managementProtocol, TotalDeviceSizePerNode, installpath, and syslogging.