JPPF 6.0 beta

JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid

JPPF 6.0 beta new features highlights

Heartbeat mechanism for connection failure detection

The existing mechanism was completely refactored into a NIO-based framework, with major advantages:

• it now uses the same server port as for the job data, distributed class loader and JMX remote connector
• the server-side NIO implementation allows greater scalability by multiplexing network connections
• the heartbeat mechanism can now be applied to P2P connections between servers and to client connections
• the configuration was greatly simplified: an additional TCP port is no longer needed on the server side, and the client-side configuration (for peer servers, nodes and clients) is obtained from the server during handshake
• all server discovery plugins (from clients, nodes and other peer servers) have been updated to reflect these changes

Desktop administration console enhancement

The master/slave nodes relationships are now visible in the graph view of the topology

Various enhancements

• server statistics snapshots now have a last updated timestamp
• server-to-server connectivity can now specify a maximum number of nodes for load-balancing to occur
• the new MavenCentralLocation class allows downloading artifacts from Maven Central
• a new built-in node connection strategy allows configuration with a single configuration property

All implemented issues

Features

• JPPF-17 Recover from hard failures on the client side
• JPPF-471 Show master / slave nodes relationships in the admin console
• JPPF-526 Enable NIO-based recovery/heartbeat mechanism
• JPPF-540 Make driver discovery from the client config a built-in driver discovery implementation
• JPPF-543 Enable P2P connectivity between drivers to be used only for failover

Enhancements

• JPPF-490 Timestamps for statistics updates
• JPPF-531 Ability to specify alternate drivers/servers for a node to connect to in a single configuration property
• JPPF-539 Location API - Maven central location

Tasks

• JPPF-520 Make JPPF work with Java 9
• JPPF-541 Upgrade third-party libraries and update build accordingly

JPPF Links: Web Site - Downloads - Documentation - User forums - Issue tracker - SF.net project page

JPPF 6.0 alpha 4

JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid

JPPF 6.0 alpha 4 new features highlights

Pluggable monitoring data providers

• this extension mechanism allows the management and monitoring API to provide user-defined data fields representing diagnostics data, health or general information on the JPPF node and driver JVM processes or the system on which they run
• custom data fields are automatically added to the JVM health view of the desktop and web administration consoles
• all numeric data fields are automatically made available to the user-defined charts of the desktop console
• monitoring data providers have full localization support
• the default data fields in the JVM health view are supplied by a built-in monitoring data provider

New JVM / Process / System Health built-in data fields

Thanks to the integration of Oshi, new fields have been added that are not natively available to the JVM:

• CPU temperature
• OS name and version
• Process Resident Set Size (RSS), how much memory is allocated to the process, excluding swap
• Process Virtual Memory Size (VSZ), shows all the memory the process can access, including swap
• Swap usage amount and percentage

Nio-based JMX remote connector

• full-fledged, fast and scalable, NIO-based implementation of the JMX remote specification
• available as a standalone JMX remote connector
• also fully integrated with JPPF, removing the need for JPPF servers to configure a separate JMX port
• now integrated as the default JMX remote connector in JPPF grids

Various enhancements

• parametrized configuration properties
• port of the J2EE connector to Open Liberty
• pick lists are now used in the desktop console to select the visible columns of all tree views

All implemented issues

Features

• JPPF-396 Provide information on remote drivers/nodes not natively available from the JDK
• JPPF-436 Integration of JMX remote with NIO
• JPPF-462 Node temperature
• JPPF-493 Parametrized configuration properties
• JPPF-519 Admin console: ability to add custom data to the JVM health view and the charts

Enhancements

• JPPF-530 Port J2EE connector to Open Liberty
• JPPF-535 Desktop console: use picklist to select visible columns in tree table views

Tasks

• JPPF-532 Upgrade to latest version of SLF4J
• JPPF-536 Generic build script in the repo root

JPPF Links: Web Site - Downloads - Documentation - User forums - Issue tracker