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GRIA 5.3.1 Released

Major new releases of the core GRIA Client, Client Management, Service Provider Management, Basic Application Services and OGSA-DAI packages are now available for download

This release is primarily to improve the ease of use of the client GUI. In addition many bugs have been fixed including some important ones affecting the monitoring and management of jobs by the SLA service.

Client

The 5.3.1 release makes the GRIA client GUI much easier to use, for instance:

  • The interface for managing the client's identity is improved.
  • The "Add policy rule" interface is easier to use.
  • Existing jobs can easily be resubmitted with different arguments.
  • When a job finishes, the status of its data stagers is automatically updated.
  • The user of the client can choose to trust a service's certificate permanently.

In addition there are two useful new features for developers:

  • The mechanism for generating a GRIA DLL for use on .NET platforms is improved.
  • A new AttributeSelector (SAMLGenerator) has been added to allow clients embedded in portals to generate their own SAML assertions.

SLA Service

There have been many bug fixes and improvements in the SLA Service for this release:

  • Views of SLAs and SLA templates now show all constraints and pricing terms.
  • The SLA Service is robust to incorrect usage reports.
  • The job service sends better usage reports and is therefore managed by the SLA Service more effectively.
  • A database transaction error could cause the SLA service to resend bills to the Account Service unnecessarily.
  • In the pull-point management system, not all activities at a pull-point were always displayed.
  • The SLA template editor now deals with different numerical formats from different locales.
  • A better error message is returned to the client when trying to create a new activity on a closed SLA.
  • The security policy management interface has been reorganised to make it clearer.
  • Compatibility fixes for the latest versions of Tomcat.

There are also two useful new features:

  • The ConstraintManager uses a new management action (ConstrainActivity) to stop but not destroy jobs that are exceeding their constraints.
  • The SLA Service warns about SLA templates that will soon expire in the Atom feed.

It is strongly recommended that the GRIA Basic Applications Services package is also upgraded to v5.3.1 to take full advantage of the better job management facilities.

Job and Data Services

There have been several bug fixes and improvements for the job and data service for this release, including:

  • The usage reports coming from the resource manager and application scripts are now handled correctly.
  • Jobs can now have zero inputs and/or zero outputs.
  • The security policy management interface has been reorganised to make it clearer.
  • Compatibility fixes for the latest versions of Tomcat.

There are also three useful new features:

  • Adding a ".debug" file to a job's work directory means that the files in the directory will not be deleted when the job completes.
  • A new "watermark" tutorial application is included which demonstrates all the features of the application wrappers including custom application metric reporting and a custom kill script.
  • If a job exceeds its SLA constraints it will now be stopped instead of destroyed.

It is strongly recommended that the GRIA Service Provider Management package is also upgraded to v5.3.1 to take full advantage of the improved job management by the SLA service.