So when I add in the line:
<DynamicImport-Package>*</DynamicImport-Package>
to my pom.xml, I get the following error:
Bundle XYZ is not compatible with this blueprint extender
When I take out that line from the pom.xml file, I get the following stack
trace in the ServiceMix log file. It appears that I'm attempting to
connect to HBase, but now am running into authentication and/or class
loading errors.
15:06:58,053 | WARN | .120.1.128:2181) | ClientCnxn
| 230 - org.apache.hadoop.zookeeper - 3.4.6 | Session 0x0 for server null,
unexpected error, closing socket co
nnection and attempting reconnect
java.lang.NoClassDefFoundError: org/ietf/jgss/GSSException
at
org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:945)[230:org.apache.hadoop.zookeeper:3.4.6]
at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1003)[230:org.apache.hadoop.zookeeper:3.4.6]
Caused by: java.lang.ClassNotFoundException: org.ietf.jgss.GSSException not
found by org.apache.hadoop.zookeeper [230]
at
org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1460)[org.apache.felix.framework-4.0.3.jar:]
at
org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:72)[org.apache.felix.framework-4.0.3.jar:]
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1843)[org.apache.felix.framework-4.0.3.jar:]
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)[:1.7.0_71]
... 2 more
15:06:58,173 | WARN | md-feed_Worker-1 | RecoverableZooKeeper
| 232 - org.apache.servicemix.bundles.hbase - 0.94.6.1 | Possibly transient
ZooKeeper exception: org.apache.zo
okeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /hbase/hbaseid
On Wed, Nov 19, 2014 at 2:01 PM, <[email protected]> wrote:
> Here,
> https://github.com/jgoodyear/ApacheKarafCookbook/blob/master/chapter9/chapter-9-recipe1/src/main/java/com/packt/hadoop/demo/hdfs/HdfsConfigServiceImpl.java
>
>
> Line 30 - we replace the TCCL with our class loader, then new threads that
> you pretty much can bet on
>
> will be spawned by those external libraries use our CL.
>
>
>
>
> ClassLoader tccl = Thread.currentThread().getContextClassLoader();
>
> try {
>
>
>
> Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
>
>
> Just replace it afterwards.
>
> On Wed, Nov 19, 2014 at 11:50 AM, Mark Webb <[email protected]> wrote:
>
> > I'm not exactly sure what you mean by "replacing the context class
> > loader". Is this done in the java code, or the blueprint file?
> > Thanks for your help on this.
> > On Wed, Nov 19, 2014 at 1:26 PM, Mark Webb <[email protected]>
> wrote:
> >> I believe you are correct. I will add that to my pom.xml and see if it
> >> helps.
> >>
> >>
> >> On Wed, Nov 19, 2014 at 12:21 PM, <[email protected]> wrote:
> >>
> >>> Replacing the context class loader is probably the trick you need, then
> >>> combining that with
> >>>
> >>> <DynamicImport-Package>*</DynamicImport-Package>
> >>>
> >>>
> >>>
> >>>
> >>> Is probably what you need.
> >>>
> >>> On Wed, Nov 19, 2014 at 9:59 AM, null <[email protected]> wrote:
> >>>
> >>> > I did write a chapter on that for the Apache Karaf CookBook.
> >>> >
> https://www.packtpub.com/application-development/apache-karaf-cookbook
> >>> > The example code is here -
> >>> > https://github.com/jgoodyear/ApacheKarafCookbook
> >>> > I just write to HDFS but I suspect you’ll get a head start from that
> >>> stuff.
> >>> > And the goal in that chapter wasn’t to embed Hadoop, rather to be
> able
> >>> to
> >>> > externally access an existing system.
> >>> > /je
> >>> > On Wed, Nov 19, 2014 at 9:40 AM, Mark Webb <[email protected]>
> >>> wrote:
> >>> >> Has anyone had any luck getting a Camel route in ServiceMix to write
> >>> to a
> >>> >> HBase database? I've been running into problems avro impatabilities
> >>> (fixed
> >>> >> in 5.1.4) and now with LoginModule not found errors. I have to
> believe
> >>> >> that someone has gotten this all to work, but I am getting
> frustrated
> >>> and
> >>> >> looking for some assistance. I've read a few blogs online that
> state
> >>> that
> >>> >> HBase is using classloaders that make the integration with an OSGi
> >>> >> container very difficult. Does anyone know of a tutorial or
> >>> documentation
> >>> >> on how to get ServiceMix/HBase/Camel working together?
> >>> >> Thank you,
> >>> >> Mark
> >>>
> >>
> >>
>
