[SPARK-10987] yarn-client mode misbehaving with netty-based RPC backend

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 1.6.0
• Component/s: Spark Core, YARN
• Assignee: Marcelo Masiero Vanzin
• Reporter: Marcelo Masiero Vanzin
• Created: 07/Oct/15 22:33
• Updated: 08/Oct/15 16:48
• Resolved: 08/Oct/15 16:48

Description

YARN running in cluster deploy mode seems to be having issues with the new RPC backend; if you look at unit test runs, tests that run in cluster mode are taking several minutes to run, instead of the more usual 20-30 seconds.

For example, https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/43349/consoleFull:

[info] YarnClusterSuite:
[info] - run Spark in yarn-client mode (13 seconds, 953 milliseconds)
[info] - run Spark in yarn-cluster mode (6 minutes, 50 seconds)
[info] - run Spark in yarn-cluster mode unsuccessfully (1 minute, 53 seconds)
[info] - run Python application in yarn-client mode (21 seconds, 842 milliseconds)
[info] - run Python application in yarn-cluster mode (7 minutes, 0 seconds)
[info] - user class path first in client mode (1 minute, 58 seconds)
[info] - user class path first in cluster mode (4 minutes, 49 seconds)

Issue Links

• links to: [Github] Pull Request #9021 (vanzin)