Ali Anwar created TWILL-231:
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Summary: YarnTwillRunnerService should renew delegation tokens in
parallel
Key: TWILL-231
URL: https://issues.apache.org/jira/browse/TWILL-231
Project: Apache Twill
Issue Type: Improvement
Reporter: Ali Anwar
Currently, YarnTwillRunnerService renews delegation tokens for the running
applications in a serial fashion:
https://github.com/apache/twill/blob/2a316a60b041f39bff95bfcd45f308f7c89d4bfa/twill-yarn/src/main/java/org/apache/twill/yarn/YarnTwillRunnerService.java#L702-L721
If there are many applications running, this can take a long time. These renew
tasks can be done in parallel to speed this up.
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