Apache Karaf Cellar and central management
Introduction One of the first purpose of Apache Karaf Cellar is to synchronize the state of each Karaf instances in the Cellar cluster. It means that any change performed on one node (install a...
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Apache Karaf Cellar 2.2.4
Apache Karaf Cellar 2.2.4 has been released. This release is a major release, including a bunch of bug fixes and new features. Here’s the list of key things included in this release. Consistent...
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Dell Vostro with Ubuntu: use the AMD Catalyst drivers
I have a Dell Vostro 3550 with Ubuntu 12.04 since around one year now. The laptop worked fine, it was pretty fast, building a lot of projects in the same time, etc. I complained with: the temperature...
View ArticleApache Karaf 2.2.9
The Apache Karaf team is proud to announce a new version on the Karaf 2.2.x branch. The 2.2.9 version is a major bug fixes release. We fixed 52 issues in this release, and we are inline with our...
View ArticleApache Karaf 2.3.0 released !
Waiting for Karaf 3.0.0, we worked hard in the Karaf team to provide Apache Karaf 2.3.0. The Karaf 2.2.x branch is now only in maintenance mode: it means that no new features will be implemented in...
View ArticleApache Karaf Cellar 2.2.5 released !
During the ApacheCon EU, I made a demo of Karaf and Cellar all together. During this demo, I used Cellar 2.2.5-SNAPSHOT. Now, Cellar 2.2.5 is released ! But, what’s new in this version ? Groups are now...
View ArticleHow to enable HTTPS certificate client auth with Karaf
I received many times messages from users asking how we can “trust” HTTP clients in Karaf. The purpose is to exchange certificates and allow only “trusted” clients to use the Karaf HTTP service. Enable...
View ArticleCreate custom log4j appender for Karaf and Pax Logging
Karaf leverages Pax Logging for the logging layer. Pax Logging provides an abstraction service for most popular logging frameworks, like SLF4J, Log4j, commons-logging, etc. Karaf provides a default...
View ArticleMultiple HTTP connectors in Apache Karaf
Installing the http feature in Karaf leverages Pax Web to embed a Jetty webcontainer. By default, Karaf create a Jetty connector on the 8181 http port (and 8443 for https). You can change this port...
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Load balancing with Apache Karaf Cellar, and mod_proxy_balancer
Thanks to Cellar, you can deploy your applications, CXF services, Camel routes, … on several Karaf nodes. When you use Cellar with web applications, or CXF/HTTP endpoints, a “classic” need is to load...
View ArticleApache Karaf Cellar 2.3.0 released
The latest Cellar release (2.2.5) didn’t work with the new Karaf branch and release: 2.3.0. If the first purpose of Cellar 2.3.0 is to be able to work with Karaf 2.3.x, actually, it’s more than that....
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Apache Hadoop and Karaf, Article 1: Karaf as HDFS client
Maybe some of you remember that, a couple of months ago, I posted some messages on the Hadoop mailing list about OSGi support in Hadoop...
View ArticlePax Logging: loggers log level
As you probably know, Apache Karaf uses Pax Logging as logging system. Pax Logging is an OPS4j project (Open Participation Software 4 Java) which provide a fully OSGi compliant framework for logging....
View ArticleKaraf and Pax Web: disabling reverse lookup
Karaf can be a full WebContainer just by installing the war feature: features:install war The war feature will install Pax Web and Jetty web server. You can configure Pax Web using a configuration file...
View ArticleApache ActiveMQ 5.7, 5.9 and Master-Slave
With my ActiveMQ friends (especially Dejan and Claus), I’m working on ActiveMQ 5.9 next release. Today, I focus on the HA with ActiveMQ, and especially Master-Slave configuration. Update of the...
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Coming in Karaf 3.0.0: JAAS users, groups, roles, and ACLs
This week I worked with David Booschaert. David proposed a patch for Karaf 3.0.0 to add the notion of groups and use ACL for JMX. He posted a blog entry about that:...
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Coming in Karaf 3.0.0: subshell and completion mode
If you are a Karaf user, you probably know that Karaf is very extensible: you can add features in Karaf to provide new functionalities. For instance, you can install Camel, ActiveMQ, CXF, Cellar, etc...
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Some books review: Instant Apache Camel Messaging System,Learning Apache...
I’m pleased to be reviewer on new books published by Packt: Instant Apache Camel Messaging System Learning Apache Karaf Instant Apache ServiceMix How-To I received a “hard” copy from Packt (thanks for...
View ArticleComing in Karaf 3.0.0: RBAC support for OSGi services and console commands
In a previous post, we saw a new Karaf feature: support of user groups and Role-Based Access Controle (RBAC) for the JMX layer. We extended the RBAC support to the OSGi services, and by side effect to...
View ArticleComing in Karaf 3.0.0: new enterprise JNDI feature
In previous Karaf version (2.x), the JNDI support was “basic”. We just leveraged Aries JNDI to support the osgi:service JNDI scheme to reference the OSGi services using JNDI name. However, we didn’t...
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