[
https://issues.apache.org/jira/browse/KARAF-6501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16963585#comment-16963585
]
ASF GitHub Bot commented on KARAF-6501:
---------------------------------------
nantunes commented on pull request #979: [KARAF-6501] Restoring the wiring of
fragment bundles with multiple hosts
URL: https://github.com/apache/karaf/pull/979
Details in https://jira.apache.org/jira/browse/KARAF-6501.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> Restoring the wiring of fragment bundles with multiple hosts
> ------------------------------------------------------------
>
> Key: KARAF-6501
> URL: https://issues.apache.org/jira/browse/KARAF-6501
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.3.0, 4.2.7
> Reporter: Nelson Antunes
> Priority: Major
> Attachments: example-1.0-SNAPSHOT.kar
>
>
> The {{StoredWiringResolver}}'s bundle wiring cache assumes each requirement
> is only wired to a single capability. This isn't true for
> {{osgi.wiring.host}} requirements as fragments can attach to multiple hosts.
> It is storing only the last wiring it comes across, resulting in the loss of
> the other wirings when booting with hot caches.
> Steps to reproduce:
> *1. Start a clean karaf*
> {noformat}
> $ bin/karaf
> __ __ ____
> / //_/____ __________ _/ __/
> / ,< / __ `/ ___/ __ `/ /_
> / /| |/ /_/ / / / /_/ / __/
> /_/ |_|\__,_/_/ \__,_/_/
> Apache Karaf (4.2.7)
> Hit '<tab>' for a list of available commands
> and '[cmd] --help' for help on a specific command.
> Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown Karaf.
> karaf@root()> list
> START LEVEL 100 , List Threshold: 50
> ID │ State │ Lvl │ Version │ Name
> 22 │ Active │ 80 │ 4.2.7 │ Apache Karaf :: OSGi Services :: Event
> {noformat}
> *2. Install a fragment bundle and install and start two or more bundles that
> satisfies the fragment's Fragment-Host requirement*
> You can use the attached {{example-1.0-SNAPSHOT.kar}} file. Put it in the
> {{deploy}} folder and it will install a fragment bundle and three hosts:
> {noformat}
> Starting the host 2
> Starting the host 1
> Starting the host 3
> {noformat}
> *3. Check that the bundles are correctly installed and the fragment is
> attached to all three hosts*
> {noformat}
> karaf@root()> list
> START LEVEL 100 , List Threshold: 50
> ID │ State │ Lvl │ Version │ Name
> 22 │ Active │ 80 │ 4.2.7 │ Apache Karaf :: OSGi Services :: Event
> 44 │ Resolved │ 80 │ 1.0.0.SNAPSHOT │ fragment Bundle, Hosts: 47, 46, 45
> 45 │ Active │ 80 │ 1.0.0 │ host1 Bundle, Fragments: 44
> 46 │ Active │ 80 │ 1.5.0 │ host2 Bundle, Fragments: 44
> 47 │ Active │ 80 │ 2.0.0 │ host3 Bundle, Fragments: 44
> {noformat}
> *4. However, notice that the wiring cache of the fragment bundle (44) isn't
> right*
> {noformat}
> $ cat data/cache/bundle0/wiring/44
> osgi.ee; (&(osgi.ee=JavaSE)(version=1.8))
> 0; version=[1.0.0, 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.8.0]
> osgi.wiring.host; (&(osgi.wiring.host=our-host)(bundle-version>=0.0.0))
> 45
> {noformat}
> *5. Stop karaf*
> {noformat}
> karaf@root()> ^D
> Stopping the host 3
> Stopping the host 2
> Stopping the host 1
> {noformat}
> *6. Start karaf with hot caches*
> {noformat}
> $ bin/karaf
> org.ops4j.pax.url.wrap [org.ops4j.pax.url.commons.handler.HandlerActivator]
> DEBUG : Handler for protocols [wrap] started
> __ __ ____
> / //_/____ __________ _/ __/
> / ,< / __ `/ ___/ __ `/ /_
> / /| |/ /_/ / / / /_/ / __/
> /_/ |_|\__,_/_/ \__,_/_/
> Apache Karaf (4.2.7)
> Hit '<tab>' for a list of available commands
> and '[cmd] --help' for help on a specific command.
> Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown Karaf.
> Starting the host 1
> Starting the host 2
> Starting the host 3
> {noformat}
> *7. Check that the fragment is no longer correctly attached to all three
> hosts, but just to one*
> {noformat}
> karaf@root()> list
> START LEVEL 100 , List Threshold: 50
> ID │ State │ Lvl │ Version │ Name
> 22 │ Active │ 80 │ 4.2.7 │ Apache Karaf :: OSGi Services :: Event
> 44 │ Resolved │ 80 │ 1.0.0.SNAPSHOT │ fragment Bundle, Hosts: 45
> 45 │ Active │ 80 │ 1.0.0 │ host1 Bundle, Fragments: 44
> 46 │ Active │ 80 │ 1.5.0 │ host2 Bundle
> 47 │ Active │ 80 │ 2.0.0 │ host3 Bundle
> {noformat}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
