Wednesday, 20 July 2016

Improved Infinispan Docker image available

image

The Infinispan Docker image has been improved, making it easier to run Infinispan Servers in clustered, domain and standalone modes, with different protocol stacks.

In this blog post we’ll show a few usage scenarios and how to combine it with the jgroups-gossip image to create Infinispan Server clusters in docker based environments.

==== Getting started

By default the container runs in clustered mode, and to start a node simply execute:

Bringing a second container will cause it to form a cluster.The membership can be verified by running a command directly in the newly launched container:

Example output:

==== Using a different JGroups stack

The command above creates a cluster with the default JGroups stack (UDP), but it’s possible to pick another one provided it’s supported by the server. For example, to use TCP:

==== Running on cloud environments

We recently dockerized the JGroups Gossip Router to be used as an alternative discovery mechanism in environments where multicast is not enabled, such as cloud environments.

Employing  a gossip router will enable discovery via TCP, where the router acts as a registry: each member will register itself in this registry upon start and also discover other members.

The gossip router container can be launched by:     

Take note of the address where the router will bind to, it’s needed by the Infinispan nodes. The address can be easily obtained by:    

Finally we can now launch our cluster specifying the tcp-gossip stack with the location of the gossip router:

==== Launching Standalone mode

Passing an extra parameter allows to run a server in standalone (non-clustered) mode:

==== Server Management Console in Domain mode

Domain mode is a special case of clustered mode (and currently a requirement to use the Server Management Console), that involves launching a domain controller process plus one or more host controller processes. The domain controller does not hold data, it is used as a centralized management process that can replicate configuration and provision servers on the host controllers.

Running a domain controller is easily achievable with a parameter:

Once the domain controller is running, it’s possible to start one or more host controllers. In the default configuration, each host controller has two Infinispan server instances:

The command line interface can be used to verify the hosts managed in the domain:

It should output all the host names that are part of the domain, including the master (domain controller):

To get access to the Management console, use credentials admin/admin and go to port 9990 of the domain controller, for example: http://172.17.0.2:9990/

==== Versions

The image is built on Dockerhub shortly after each Infinispan release (stable and unstable), and the improvements presented in this post are available for Infinispan 9.0.0.Alpha3 and Infinispan 8.2.3.Final. As a reminder, make sure to pick the right version when launching containers:

Getting involved

The image was created to be flexible and easy to use, but if something is not working for you or if you have any suggestions to improve it, please report it at https://github.com/jboss-dockerfiles/infinispan/issues/

Enjoy!

Posted by Gustavo on 2016-07-20
Tags: docker console domain mode server jgroups

Friday, 09 January 2015

Infinispan 7.1.0.Beta1

Dear Infinispan community,

We’re proud to announce the first Beta release of Infinispan 7.1.0.

Infinispan brings the following major improvements:

  • Near-Cache support for Remote HotRod caches

  • Annotation-based generation of ProtoBuf serializers which removes the need to write the schema files by hand and greatly improves usability of Remote Queries

  • Cluster Listener Event Batching, which coalesces events for better performance

  • Cluster- and node-wide aggregated statistics

  • Vast improvements to the indexing performance

  • Support for domain mode and the security vault in the server

  • Further improvements to the Partition Handling with many stability fixes and the removal of the Unavailable mode: a cluster can now be either Available or Degraded.

Of course there’s also the usual slew of bug fixes, performance and memory usage improvements and documentation cleanups.

Feel free to join us and shape the future releases on our forums, our mailing lists or our #infinispan IRC channel.

For a complete list of features and bug fixes included in this release please refer to the release notes. Visit our downloads section to find the latest release.

Thanks to everyone for their involvement and contribution!

Posted by Tristan Tarrant on 2015-01-09
Tags: release near caching domain mode performance Protobuf indexing annotations

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