Beginners docker, with hadoop yarn3.0 version 1 build standalone environment, by changing the configuration of yarn. The site make the nodemanager startup enable docker execution container, a word count missions, each are all failed, always appear the following error:

But in a development machine, run into the docker mirrored the container instances, directly execute the graphs tasks can be completed properly, the stderr userlogs information has always been: Error: Could not find or load a main class org.. Apache hadoop. Graphs. V2. The app. MRAppMaster, but after landing dock the mirror, found
Yarn - site. The XML configuration is correct, as shown in the figure below


Don't know how to solve, which can master the
Note: docker mirror with sequenceiq/hadoop - docker: 2.7.0