Could you look into the flink-shaded-hadoop jar to check whether the
missing class is actually contained?
Where did the flink-shaded-hadoop jar come from? I'm asking because when
building flink-dist from source the jar is called
flink-shaded-hadoop2-uber-1.4.0.jar, which does indeed contain the jar.
(the uber jar is created by building flink-shaded-hadoop2*-uber*)
On 12.12.2017 19:28, Jared Stehler wrote:
After upgrading to flink 1.4.0 using the hadoop-free build option, I’m
seeing the following error on startup in the app master:
2017-12-12 18:23:15.473 [main] ERROR
o.a.f.m.r.clusterframework.MesosApplicationMasterRunner - Mesos
JobManager initialization failed
<https://internal.dev3.master.us-west-2.prod.aws.intellify.io/singularity/task/flink-appmaster-1513102980-1513102985422-1-10.80.53.70-us_west_2b/tail/flink-appmaster-1513102980-1513102985422-1-10.80.53.70-us_west_2b/tail_of_finished_service.log?offset=34208>java.lang.NoClassDefFoundError:
Could not initialize class org.apache.hadoop.security.UserGroupInformation
<https://internal.dev3.master.us-west-2.prod.aws.intellify.io/singularity/task/flink-appmaster-1513102980-1513102985422-1-10.80.53.70-us_west_2b/tail/flink-appmaster-1513102980-1513102985422-1-10.80.53.70-us_west_2b/tail_of_finished_service.log?offset=34315>at
org.apache.flink.runtime.clusterframework.overlays.HadoopUserOverlay$Builder.fromEnvironment(HadoopUserOverlay.java:74)
<https://internal.dev3.master.us-west-2.prod.aws.intellify.io/singularity/task/flink-appmaster-1513102980-1513102985422-1-10.80.53.70-us_west_2b/tail/flink-appmaster-1513102980-1513102985422-1-10.80.53.70-us_west_2b/tail_of_finished_service.log?offset=34439>at
org.apache.flink.mesos.entrypoint.MesosEntrypointUtils.applyOverlays(MesosEntrypointUtils.java:145)
Looking at the code, it appears that the HadoopUserOverlay always
tries to init the UserGroupInformation class, and is failing. Same
error with or without the flink-shaded-hadoop2 library included.
This is my lib dir:
flink-appmaster-1.0-SNAPSHOT.jar flink-s3-fs-presto-1.4.0.jar
jul-to-slf4j-1.7.25.jar sentry-1.5.3.jar
flink-dist_2.11-1.4.0.jar flink-shaded-hadoop2-1.4.0.jar
log4j-over-slf4j-1.7.25.jar sentry-logback-1.5.3.jar
flink-metrics-prometheus-1.4.0.jar jackson-core-2.8.10.jar
logback-classic-1.1.11.jar
flink-python_2.11-1.4.0.jar jcl-over-slf4j-1.7.25.jar
logback-core-1.1.11.jar
--
Jared Stehler
Chief Architect - Intellify Learning
o: 617.701.6330 x703
