Unable to launch SimulatedApplicationMaster.
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- Dominant language
- Java
- Stars
- 60
- Forks
- 6
- PR merge metrics
- No merged PRs in 30d
Description
Hi, I meet this issue when I try to run this DynoYarn.
From the ticket, https://issues.apache.org/jira/browse/YARN-8849. I suppose that DynoYarn will launch an UnmanagedAM to simulate the AM to send request to the DynoRM.
However, from the code in SimulatedAppSubmitter, yarnClient will submit the SimulatedApplicationMaster Space to DynoRM directly without UnmanagedAM settings. But DynoRM can't distribute a container for SimulatedApplicationMaster, since all nodemanagers in DynoYarn are simulated.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with SimulatedAppSubmitter and compare its submission path with the UnmanagedAM behavior described in YARN-8849. Read how DynoRM and the simulated node managers handle the SimulatedApplicationMaster request. Done means the application master can be launched successfully in DynoYARN's simulated cluster.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- hadoop, java
- Domain
- distributed-systems, testing
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100