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Posted to user@karaf.apache.org by "F.Aubele" <fl...@infraview.eu> on 2014/01/20 18:16:18 UTC
Problems with webconsole and bundle cache
Hi everyone,
I have 2 major problems right now. I'm using the official karaf 3 release
and felix as container implementation. Karaf is running on linux.
The first problem i have is that i want to install certain features as boot
features.
These features are:
webconsole,eventadmin,blueprintweb,jndi,obr.
If i put these features into the featuresBoot list in
org.apache.karaf.features.cfg, the web console is only showing the OSGI and
WebConsole Tab, the Main tab and the event entry in the osgi tab are
missing. After feature:uninstall and feature:install in the shell,
everything works fine again.
The second problem is much more problematic for me right now:
If i do a forced shutdown of the VM I run Karaf on, all bundles i have
installed via the WebConsole won't start up again. This happens when i run
karaf as a service and when i start it manually. At first i thought it had
something to do with blueprint, since most of my bundles are using it, but
it also happens with the apache ace managementagent bundle.
Most of the time the error looks like this:
Unresolved constraint in bundle org.apache.ace.managementagent [166]: Unable
to resolve 166.0: missing requirement [166.0] osgi.wiring.package;
(&(osgi.wiring.package=org.osgi.service.deploymentadmin)(managementagent=true)(version>=1.0.0)(!(version>=2.0.0))).
I get this error,too:
ERROR: Error reloading cached bundle, removing it:
/srv/apache-karaf-3.0.0/data/cache/bundle165
(java.lang.NullPointerException)
which maybe leads to the missing requirements, but i did not get the NPE for
every installed bundle.
After restarting, the installed bundles are still in the cache-folder, but
are not visible in the bundle list of the web-console or via the list
command in the shell. In the log files every manually installed bundle is
missing some requirements or is removed because of "Error reloading cached
bundle".
If i delete the bundles from the cache folder, restart the karaf
service/server and install the bundles manually again, everything works
fine. If i do not remove the bundles from the cache folder, it is not
possible to install the bundles again manually, error message is:
Cannot install or update bundle from
/srv/apache-karaf-3.0.0/data/tmp/install116617036763718115.tmp
org.osgi.framework.BundleException: Bundle installation rejected by hook.
It seems that this does not happen with installed features, but only with
manually deployed bundles. It's really sad, because I like Karaf 3 a lot
more than geronimo, but i need a working restart in case of power loss.
I will try to create more detailed stack traces.
Workaround could be to:
a)deploy the bundles into the system repository, so they will be seperated
from the data folder/cache (this was working when using geronimo) or
b)create a feature out of my bundles and add this feature to the boot
features.
Since I want to use Apache Ace for bundle provisioning, I'm not sure how
these workarounds will work out long term.
I have the feeling that using the bundle cache would greatly simplify things
in this regard.
Every help is appreciated.
Thanks
F.Aubele
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Re: Problems with webconsole and bundle cache
Posted by Ryan Moquin <fr...@gmail.com>.
It could have to do with maybe write caching of changes to disk. Buffers
maybe get flushed more often than one than the other. Either way, it's
virtually impossible to prevent corruption in these circumstances unless
you can put a UPC on the server. Otherwise, taking the stacktrace,
determining the type of issue that occurred and taking corre tive action is
the only option. Maybe I'll take a look at it for fun... if someone else
solves it first then at least I'm more familiar with Felix, otherwise,
maybe I can make another contribution.
Ryan
On Feb 28, 2014 9:18 AM, "F.Aubele" <fl...@infraview.eu> wrote:
> Sadly I was using equinox before, too, so just switching the framework impl
> is not working. That is what i did in January, and till today i was
> thinking
> it had something to do with felix and using equinox would solve the
> problem,
> but nope. Seems like its a general osgi issue, like you said.
>
>
>
> --
> View this message in context:
> http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031988.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
Sadly I was using equinox before, too, so just switching the framework impl
is not working. That is what i did in January, and till today i was thinking
it had something to do with felix and using equinox would solve the problem,
but nope. Seems like its a general osgi issue, like you said.
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Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
It seems that Equinox is more "flexible" in term of "brute shutdown"
than Felix.
Regards
JB
On 02/28/2014 03:01 PM, F.Aubele wrote:
> What is very strange is that i now did a clean install of karaf again,
> installed needed features, deployed all bundles via deploy folder, did a
> force shutdown and everything works fine after a restart (using equinox as
> framework). i can't really reproduce it, seems the bundle cache does not get
> corrupted everytime. just wanted to let you know.
>
>
>
> --
> View this message in context: http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031986.html
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>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
What is very strange is that i now did a clean install of karaf again,
installed needed features, deployed all bundles via deploy folder, did a
force shutdown and everything works fine after a restart (using equinox as
framework). i can't really reproduce it, seems the bundle cache does not get
corrupted everytime. just wanted to let you know.
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Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Actually, it's not really a Karaf issue, it's more an OSGi framework issue.
I understand your point. I will take a look on Felix framework.
I keep you posted.
Regards
JB
On 02/28/2014 02:49 PM, F.Aubele wrote:
> I know its not a clean shutdown, but its super important for me that the
> system and bundles restart correctly after something like system reboot
> caused by power loss. if you could look into it would be greatly
> appreciated.
>
>
>
> --
> View this message in context: http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031984.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
I know its not a clean shutdown, but its super important for me that the
system and bundles restart correctly after something like system reboot
caused by power loss. if you could look into it would be greatly
appreciated.
--
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Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Catcha,
and it makes sense. I'm able to reproduce the problem only at least by
killing the JVM (brute kill ;)).
Anyway, it's not a clean shutdown. I gonna take a look if I can improve
it somehow in Felix Framework.
Regards
JB
On 02/28/2014 02:30 PM, F.Aubele wrote:
> I don't know if stopped is the right expression, i just kill the linux
> virtual machine, its like pulling out the power cord on the computer, sudden
> death so to speak. The problem only exists when doing a forced shutdown,
> normal system shutdown an startup are working fine.
>
>
>
> --
> View this message in context: http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031982.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
I don't know if stopped is the right expression, i just kill the linux
virtual machine, its like pulling out the power cord on the computer, sudden
death so to speak. The problem only exists when doing a forced shutdown,
normal system shutdown an startup are working fine.
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Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
So, you "stopped" the Windows service, right ?
Are you able to reproduce the problem if you start Karaf with bin/karaf
and "cleanly" shutdown using system:shutdown ?
Regards
JB
On 02/28/2014 01:42 PM, F.Aubele wrote:
> I killed (force shutdown) the virtual machine karaf is running on as service
>
>
>
> --
> View this message in context: http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031980.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
I killed (force shutdown) the virtual machine karaf is running on as service
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Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Did you kill the Karaf Java process ?
Or just do a shutdown in the console ?
Regards
JB
On 02/28/2014 01:01 PM, F.Aubele wrote:
> Seems i have the same problem with equinox now, too, so maybe it is not
> felix dependend, but has something to do with the bundles, even if i am not
> sure what could be the cause. I will try to experiment some more.
>
>
>
> --
> View this message in context: http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031978.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
Seems i have the same problem with equinox now, too, so maybe it is not
felix dependend, but has something to do with the bundles, even if i am not
sure what could be the cause. I will try to experiment some more.
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Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
I agree. I know that a new Felix framework release is planned very soon.
I will try to reproduce Florin's issue.
Regards
JB
On 01/21/2014 03:28 PM, Achim Nierbeck wrote:
> Florin,
>
> thanks for the testing with equinox, I think we might have an issue with
> the felix framework then.
>
> regards, Achim
>
>
> 2014/1/21 F.Aubele <florin.aubele@infraview.eu
> <ma...@infraview.eu>>
>
> @jb
> webconsole:
> I'm not sure i understand you correctly. If i edit the location of
> webconsole in the org.apache.karaf.feaures.cfg, it changes nothing.
> I have
> the same problem, it does not matter if webconsole is at the
> beginning of
> featuresBoot, at the middle or at the end. Should I edit the
> standard-3.0.0-features.xml? Sorry if this question is really stupid :).
> featuresBootAsynchonous is set to false.
>
> bundle cache:
> switching the framework container to equinox seems to help.
> I ran a couple of test, trying manual file install via the
> "bundle:install
> file://"- command and installing bundles via the deploy folder,
> which worked
> with equinox and did not with felix, error was always like this:
>
> ERROR: Error reloading cached bundle, removing it:
> /srv/karaf-3.0.0/data/cache/bundle135 (java.lang.NullPointerException)
> java.lang.NullPointerException
> at
> org.apache.felix.framework.cache.BundleArchive.createRevisionFromLocation(BundleArchive.java:869)
> at
> org.apache.felix.framework.cache.BundleArchive.reviseInternal(BundleArchive.java:550)
> at
> org.apache.felix.framework.cache.BundleArchive.<init>(BundleArchive.java:226)
> at
> org.apache.felix.framework.cache.BundleCache.getArchives(BundleCache.java:247)
> at org.apache.felix.framework.Felix.init(Felix.java:705)
> at org.apache.karaf.main.Main.launch(Main.java:238)
> at org.apache.karaf.main.Main.main(Main.java:172)
>
> Like i said, using the deploy folder for bundle installation, i got
> the same
> results. Working with Equinox, not working with felix. I ran every
> test by
> force shutdown of the virtual machine on which karaf runs and manually
> starting karaf. I have not tested how things behave when using the
> service
> wrapper but will later today or tomorrow. After the forced shutdown i
> restarted the vm, and started karaf without clearing any cache. In
> between
> test i cleared the cache.
>
> Ace:
> I have just started with the provisioning part, and i'm not forced
> to use
> ACE. I got the idea from the book Enterprise OSGI in Action, and it
> sounded
> like exactly what i want:
> Provisioning and administering multiple targets from a central
> server. If
> there are better provisioning frameworks for my purpose I will try
> them out,
> thanks for your suggestions. I just thought since it is Apache, too, and
> kind of built for OSGi bundles, it seemed like a nice solution. I
> don't want
> something very complex, i have 1..n remote targets that should be
> provisioned with bundles from the same server. But i have to admit my
> knowledge about provisioning mechanisms in the OSGI World is very
> limited, i
> just wanted to try out and play around with the managementagent and the
> ace-server. For use in the production environment, I will have to
> spend a
> lot more time experimenting and upping my knowledge. The main problem is
> not the amount of bundles i want to provision, since for the foreseeable
> future, it will not be more than 5-10. But the amount of targets could
> become something in the hundreds, so if you have some more
> suggestions, I'm
> all open for it.
>
> @Achim: Seems Equinox works much better for me
>
> Regards
> Florin
>
>
>
> --
> View this message in context:
> http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031237.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
>
>
>
> --
>
> Apache Karaf <http://karaf.apache.org/> Committer & PMC
> OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> Committer
> & Project Lead
> OPS4J Pax for Vaadin <http://team.ops4j.org/wiki/display/PAXVAADIN/Home>
> Commiter & Project Lead
> blog <http://notizblog.nierbeck.de/>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
Re: Problems with webconsole and bundle cache
Posted by Achim Nierbeck <bc...@googlemail.com>.
Florin,
thanks for the testing with equinox, I think we might have an issue with
the felix framework then.
regards, Achim
2014/1/21 F.Aubele <fl...@infraview.eu>
> @jb
> webconsole:
> I'm not sure i understand you correctly. If i edit the location of
> webconsole in the org.apache.karaf.feaures.cfg, it changes nothing. I have
> the same problem, it does not matter if webconsole is at the beginning of
> featuresBoot, at the middle or at the end. Should I edit the
> standard-3.0.0-features.xml? Sorry if this question is really stupid :).
> featuresBootAsynchonous is set to false.
>
> bundle cache:
> switching the framework container to equinox seems to help.
> I ran a couple of test, trying manual file install via the "bundle:install
> file://"- command and installing bundles via the deploy folder, which
> worked
> with equinox and did not with felix, error was always like this:
>
> ERROR: Error reloading cached bundle, removing it:
> /srv/karaf-3.0.0/data/cache/bundle135 (java.lang.NullPointerException)
> java.lang.NullPointerException
> at
>
> org.apache.felix.framework.cache.BundleArchive.createRevisionFromLocation(BundleArchive.java:869)
> at
>
> org.apache.felix.framework.cache.BundleArchive.reviseInternal(BundleArchive.java:550)
> at
>
> org.apache.felix.framework.cache.BundleArchive.<init>(BundleArchive.java:226)
> at
>
> org.apache.felix.framework.cache.BundleCache.getArchives(BundleCache.java:247)
> at org.apache.felix.framework.Felix.init(Felix.java:705)
> at org.apache.karaf.main.Main.launch(Main.java:238)
> at org.apache.karaf.main.Main.main(Main.java:172)
>
> Like i said, using the deploy folder for bundle installation, i got the
> same
> results. Working with Equinox, not working with felix. I ran every test by
> force shutdown of the virtual machine on which karaf runs and manually
> starting karaf. I have not tested how things behave when using the service
> wrapper but will later today or tomorrow. After the forced shutdown i
> restarted the vm, and started karaf without clearing any cache. In between
> test i cleared the cache.
>
> Ace:
> I have just started with the provisioning part, and i'm not forced to use
> ACE. I got the idea from the book Enterprise OSGI in Action, and it sounded
> like exactly what i want:
> Provisioning and administering multiple targets from a central server. If
> there are better provisioning frameworks for my purpose I will try them
> out,
> thanks for your suggestions. I just thought since it is Apache, too, and
> kind of built for OSGi bundles, it seemed like a nice solution. I don't
> want
> something very complex, i have 1..n remote targets that should be
> provisioned with bundles from the same server. But i have to admit my
> knowledge about provisioning mechanisms in the OSGI World is very limited,
> i
> just wanted to try out and play around with the managementagent and the
> ace-server. For use in the production environment, I will have to spend a
> lot more time experimenting and upping my knowledge. The main problem is
> not the amount of bundles i want to provision, since for the foreseeable
> future, it will not be more than 5-10. But the amount of targets could
> become something in the hundreds, so if you have some more suggestions, I'm
> all open for it.
>
> @Achim: Seems Equinox works much better for me
>
> Regards
> Florin
>
>
>
> --
> View this message in context:
> http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218p4031237.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
--
Apache Karaf <http://karaf.apache.org/> Committer & PMC
OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> Committer &
Project Lead
OPS4J Pax for Vaadin <http://team.ops4j.org/wiki/display/PAXVAADIN/Home>
Commiter & Project Lead
blog <http://notizblog.nierbeck.de/>
Re: Problems with webconsole and bundle cache
Posted by "F.Aubele" <fl...@infraview.eu>.
@jb
webconsole:
I'm not sure i understand you correctly. If i edit the location of
webconsole in the org.apache.karaf.feaures.cfg, it changes nothing. I have
the same problem, it does not matter if webconsole is at the beginning of
featuresBoot, at the middle or at the end. Should I edit the
standard-3.0.0-features.xml? Sorry if this question is really stupid :).
featuresBootAsynchonous is set to false.
bundle cache:
switching the framework container to equinox seems to help.
I ran a couple of test, trying manual file install via the "bundle:install
file://"- command and installing bundles via the deploy folder, which worked
with equinox and did not with felix, error was always like this:
ERROR: Error reloading cached bundle, removing it:
/srv/karaf-3.0.0/data/cache/bundle135 (java.lang.NullPointerException)
java.lang.NullPointerException
at
org.apache.felix.framework.cache.BundleArchive.createRevisionFromLocation(BundleArchive.java:869)
at
org.apache.felix.framework.cache.BundleArchive.reviseInternal(BundleArchive.java:550)
at
org.apache.felix.framework.cache.BundleArchive.<init>(BundleArchive.java:226)
at
org.apache.felix.framework.cache.BundleCache.getArchives(BundleCache.java:247)
at org.apache.felix.framework.Felix.init(Felix.java:705)
at org.apache.karaf.main.Main.launch(Main.java:238)
at org.apache.karaf.main.Main.main(Main.java:172)
Like i said, using the deploy folder for bundle installation, i got the same
results. Working with Equinox, not working with felix. I ran every test by
force shutdown of the virtual machine on which karaf runs and manually
starting karaf. I have not tested how things behave when using the service
wrapper but will later today or tomorrow. After the forced shutdown i
restarted the vm, and started karaf without clearing any cache. In between
test i cleared the cache.
Ace:
I have just started with the provisioning part, and i'm not forced to use
ACE. I got the idea from the book Enterprise OSGI in Action, and it sounded
like exactly what i want:
Provisioning and administering multiple targets from a central server. If
there are better provisioning frameworks for my purpose I will try them out,
thanks for your suggestions. I just thought since it is Apache, too, and
kind of built for OSGi bundles, it seemed like a nice solution. I don't want
something very complex, i have 1..n remote targets that should be
provisioned with bundles from the same server. But i have to admit my
knowledge about provisioning mechanisms in the OSGI World is very limited, i
just wanted to try out and play around with the managementagent and the
ace-server. For use in the production environment, I will have to spend a
lot more time experimenting and upping my knowledge. The main problem is
not the amount of bundles i want to provision, since for the foreseeable
future, it will not be more than 5-10. But the amount of targets could
become something in the hundreds, so if you have some more suggestions, I'm
all open for it.
@Achim: Seems Equinox works much better for me
Regards
Florin
--
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Re: Problems with webconsole and bundle cache
Posted by Achim Nierbeck <bc...@googlemail.com>.
Hi Florin,
Besides the questions of JB, were you able to reproduce the same behavior
with equinox as framework? Cause from this description plus your question
at stackoverflow, it gives me the impression that the cache does get
corrupted.
Since Karaf uses a newer version of Felix it might be a recession of Felix.
Regards, Achim
sent from mobile device
Am 20.01.2014 18:44 schrieb "Jean-Baptiste Onofré" <jb...@nanthrax.net>:
> Hi Florin,
>
> 1/ regarding webconsole, it's because you have to install the plugins.
> If you take a look in the Karaf standard feature, you will see that you
> have a condition when installing the webconsole: the other webconsole
> plugins are installed (instance, features, gogo, http, scr, ...).
> So, when you install as a boot feature, you have to go through the
> condition. Try to put the webconsole at the end of the boot features set
> with in sync mode.
>
> 2/ regarding bundle, do you reproduce the issue if you:
> 2.1/ install a bundle (with bundle:install)
> 2.2/ restart Karaf
> I'm pretty sure you don't have issue here.
> Do you use OBR with ACE ? What's your ACE version ?
> By the way, did you evaluate other provisioning solution (Fabric, Cellar,
> Kalumet, ...) ?
>
> Thanks
> Regards
> JB
>
> On 01/20/2014 06:16 PM, F.Aubele wrote:
>
>> Hi everyone,
>> I have 2 major problems right now. I'm using the official karaf 3 release
>> and felix as container implementation. Karaf is running on linux.
>> The first problem i have is that i want to install certain features as
>> boot
>> features.
>> These features are:
>> webconsole,eventadmin,blueprintweb,jndi,obr.
>>
>> If i put these features into the featuresBoot list in
>> org.apache.karaf.features.cfg, the web console is only showing the OSGI
>> and
>> WebConsole Tab, the Main tab and the event entry in the osgi tab are
>> missing. After feature:uninstall and feature:install in the shell,
>> everything works fine again.
>>
>> The second problem is much more problematic for me right now:
>> If i do a forced shutdown of the VM I run Karaf on, all bundles i have
>> installed via the WebConsole won't start up again. This happens when i run
>> karaf as a service and when i start it manually. At first i thought it had
>> something to do with blueprint, since most of my bundles are using it, but
>> it also happens with the apache ace managementagent bundle.
>>
>> Most of the time the error looks like this:
>>
>> Unresolved constraint in bundle org.apache.ace.managementagent [166]:
>> Unable
>> to resolve 166.0: missing requirement [166.0] osgi.wiring.package;
>> (&(osgi.wiring.package=org.osgi.service.deploymentadmin)(
>> managementagent=true)(version>=1.0.0)(!(version>=2.0.0))).
>>
>> I get this error,too:
>>
>> ERROR: Error reloading cached bundle, removing it:
>> /srv/apache-karaf-3.0.0/data/cache/bundle165
>> (java.lang.NullPointerException)
>>
>> which maybe leads to the missing requirements, but i did not get the NPE
>> for
>> every installed bundle.
>>
>> After restarting, the installed bundles are still in the cache-folder, but
>> are not visible in the bundle list of the web-console or via the list
>> command in the shell. In the log files every manually installed bundle is
>> missing some requirements or is removed because of "Error reloading cached
>> bundle".
>> If i delete the bundles from the cache folder, restart the karaf
>> service/server and install the bundles manually again, everything works
>> fine. If i do not remove the bundles from the cache folder, it is not
>> possible to install the bundles again manually, error message is:
>>
>> Cannot install or update bundle from
>> /srv/apache-karaf-3.0.0/data/tmp/install116617036763718115.tmp
>> org.osgi.framework.BundleException: Bundle installation rejected by hook.
>>
>> It seems that this does not happen with installed features, but only with
>> manually deployed bundles. It's really sad, because I like Karaf 3 a lot
>> more than geronimo, but i need a working restart in case of power loss.
>>
>> I will try to create more detailed stack traces.
>> Workaround could be to:
>> a)deploy the bundles into the system repository, so they will be seperated
>> from the data folder/cache (this was working when using geronimo) or
>> b)create a feature out of my bundles and add this feature to the boot
>> features.
>> Since I want to use Apache Ace for bundle provisioning, I'm not sure how
>> these workarounds will work out long term.
>> I have the feeling that using the bundle cache would greatly simplify
>> things
>> in this regard.
>> Every help is appreciated.
>> Thanks
>> F.Aubele
>>
>>
>>
>>
>>
>>
>>
>> --
>> View this message in context: http://karaf.922171.n3.nabble.
>> com/Problems-with-webconsole-and-bundle-cache-tp4031218.html
>> Sent from the Karaf - User mailing list archive at Nabble.com.
>>
>>
> --
> Jean-Baptiste Onofré
> jbonofre@apache.org
> http://blog.nanthrax.net
> Talend - http://www.talend.com
>
Re: Problems with webconsole and bundle cache
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Hi Florin,
1/ regarding webconsole, it's because you have to install the plugins.
If you take a look in the Karaf standard feature, you will see that you
have a condition when installing the webconsole: the other webconsole
plugins are installed (instance, features, gogo, http, scr, ...).
So, when you install as a boot feature, you have to go through the
condition. Try to put the webconsole at the end of the boot features set
with in sync mode.
2/ regarding bundle, do you reproduce the issue if you:
2.1/ install a bundle (with bundle:install)
2.2/ restart Karaf
I'm pretty sure you don't have issue here.
Do you use OBR with ACE ? What's your ACE version ?
By the way, did you evaluate other provisioning solution (Fabric,
Cellar, Kalumet, ...) ?
Thanks
Regards
JB
On 01/20/2014 06:16 PM, F.Aubele wrote:
> Hi everyone,
> I have 2 major problems right now. I'm using the official karaf 3 release
> and felix as container implementation. Karaf is running on linux.
> The first problem i have is that i want to install certain features as boot
> features.
> These features are:
> webconsole,eventadmin,blueprintweb,jndi,obr.
>
> If i put these features into the featuresBoot list in
> org.apache.karaf.features.cfg, the web console is only showing the OSGI and
> WebConsole Tab, the Main tab and the event entry in the osgi tab are
> missing. After feature:uninstall and feature:install in the shell,
> everything works fine again.
>
> The second problem is much more problematic for me right now:
> If i do a forced shutdown of the VM I run Karaf on, all bundles i have
> installed via the WebConsole won't start up again. This happens when i run
> karaf as a service and when i start it manually. At first i thought it had
> something to do with blueprint, since most of my bundles are using it, but
> it also happens with the apache ace managementagent bundle.
>
> Most of the time the error looks like this:
>
> Unresolved constraint in bundle org.apache.ace.managementagent [166]: Unable
> to resolve 166.0: missing requirement [166.0] osgi.wiring.package;
> (&(osgi.wiring.package=org.osgi.service.deploymentadmin)(managementagent=true)(version>=1.0.0)(!(version>=2.0.0))).
>
> I get this error,too:
>
> ERROR: Error reloading cached bundle, removing it:
> /srv/apache-karaf-3.0.0/data/cache/bundle165
> (java.lang.NullPointerException)
>
> which maybe leads to the missing requirements, but i did not get the NPE for
> every installed bundle.
>
> After restarting, the installed bundles are still in the cache-folder, but
> are not visible in the bundle list of the web-console or via the list
> command in the shell. In the log files every manually installed bundle is
> missing some requirements or is removed because of "Error reloading cached
> bundle".
> If i delete the bundles from the cache folder, restart the karaf
> service/server and install the bundles manually again, everything works
> fine. If i do not remove the bundles from the cache folder, it is not
> possible to install the bundles again manually, error message is:
>
> Cannot install or update bundle from
> /srv/apache-karaf-3.0.0/data/tmp/install116617036763718115.tmp
> org.osgi.framework.BundleException: Bundle installation rejected by hook.
>
> It seems that this does not happen with installed features, but only with
> manually deployed bundles. It's really sad, because I like Karaf 3 a lot
> more than geronimo, but i need a working restart in case of power loss.
>
> I will try to create more detailed stack traces.
> Workaround could be to:
> a)deploy the bundles into the system repository, so they will be seperated
> from the data folder/cache (this was working when using geronimo) or
> b)create a feature out of my bundles and add this feature to the boot
> features.
> Since I want to use Apache Ace for bundle provisioning, I'm not sure how
> these workarounds will work out long term.
> I have the feeling that using the bundle cache would greatly simplify things
> in this regard.
> Every help is appreciated.
> Thanks
> F.Aubele
>
>
>
>
>
>
>
> --
> View this message in context: http://karaf.922171.n3.nabble.com/Problems-with-webconsole-and-bundle-cache-tp4031218.html
> Sent from the Karaf - User mailing list archive at Nabble.com.
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com