I've created a pull request for the fix:
https://github.com/apache/flink/pull/3556
It would be nice if one of the issue reporters could validate that the
cassandra connector works after the fix.
If it is a valid fix, I would like to include it into the upcoming 1.2.1
release.
On Thu, Mar 16, 2017
Yep, this is definitively a bug / misconfiguration in the build system.
The cassandra client defines metrics-core as a dependency, but the shading
is dropping the dependency when building the dependency reduced pom.
To resolve the issue, we need to add the following line into the shading
config of
Can we improve the Flink experience here by adding this dependency directly
to the cassandra connector pom.xml (so that user jars always pull it in via
transitivity)?
On Wed, Mar 15, 2017 at 4:09 PM, Nico wrote:
> Hi @all,
>
> I came back to this issue today...
>
> @Robert:
> "com/codahale/metri
Hi @all,
I came back to this issue today...
@Robert:
"com/codahale/metrics/Metric" class was not available in the user code jar
Even after adding the metric class into the build-jar profile of the pom
file, more "class not found" errors occur. So the only solution was to add
the whole dependency
Hello,
i believe the cassandra connector is not shading it's dependencies
properly. This didn't cause issues in the
past since flink used to have a dependency on codahale metrics as well.
Please open a JIRA for this issue.
Regards,
Chesnay
On 06.03.2017 11:32, Tarandeep Singh wrote:
Hi Robe
Hi Robert & Nico,
I am facing the same problem (java.lang.NoClassDefFoundError:
com/codahale/metrics/Metric)
Can you help me identify shading issue in pom.xml file.
My pom.xml content-
-
http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org
Hi Nico,
The cassandra connector should be available on Maven central:
http://search.maven.org/#artifactdetails%7Corg.apache.flink%7Cflink-connector-cassandra_2.10%7C1.2.0%7Cjar
Potentially, the issue you've mentioned is due to some shading issue. Is
the "com/codahale/metrics/Metric" class in your
