This page contains all the frequently asked questions about the Fuse Fabric project.
General questions on the Fabric project.
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When using the fabric:join command, the container that joins the cluster uses the name of the container (karaf.name) system property. Currently, it is to the responsibilty of the user to prevent name clashes. Such name clashes can have unpredictable side effects and one of them can be, to not being able to connect to the registry. To modify the (karaf.name) property you can edit the etc/system.properties file under the home of the karaf container.
There can be a lot of reasons, the most popular of which are:
Profiles can define a list of maven repositories which can be used by the fabric agent in order to download maven artifacts. The default list of repositories is defined as part of the default profile. The list of repositories can be modified or overridden by modifying the org.fusesource.fabric.agent pid of the default or any other profile respectively.
fabric:profile-edit --pid org.fusesource.fabric.agent/org.ops4j.pax.url.mvn.repositories=http://username:password@repohostname myprofile
Please note, that the command above will replace the list of repositories. If you need to add one, then you'll need to specify the existing repositories as a comma separated list.
Before reaching any of the repositories defined in the profile, fabric will lookup the runtime registry and find any fabric-maven-proxy running in the cluster. It will first lookup the maven proxy and then fallback to the repositories, if the maven proxy can't find the artifact.
There are a lot of cases where a user needs to add additional maven repositories to the fabric-maven-proxy. A common case is adding a nexus repository. To add additional repositories to the fabric-maven-proxy just add them inside the org.fusesource.fabric.maven pid.
Adding a repository to the fabric-maven-proxy:
config:propappend --pid org.fusesource.fabric.maven remoteRepositories ,http://username:password@repohostname myprofile
Replacing the remote repository list of to the fabric-maven-proxy:
config:propset --pid org.fusesource.fabric.maven remoteRepositories http://username:password@repohostname myprofile