[GitHub] [incubator-openwhisk] somaya10 opened a new pull request #4353: Revert back to the previous Scala image version, as the new base image causes reg…

[GitBox <gi...@apache.org>]

somaya10 opened a new pull request #4353: Revert back to the previous Scala image version, as the new base image causes reg…
URL: https://github.com/apache/incubator-openwhisk/pull/4353
 
 
   …ression in performance tests.
   
   
   <!--- Provide a concise summary of your changes in the Title -->
   
   ## Description
   Reverting back to `adoptopenjdk/openjdk8:x86_64-alpine-jdk8u172-b11` from `adoptopenjdk/openjdk8:x86_64-alpine-jdk8u202-b08` ([commit](https://github.com/apache/incubator-openwhisk/commit/df3acee881c24527b2f74d78fa852928e8631c1e#diff-27f60a73819012c7e10f8f9dea28df6b)) as we see regression in Latency.
   
   With the version: `jdk8u172-b11`
   
   ![Screen Shot 2019-03-15 at 14 28 56](https://user-images.githubusercontent.com/12074169/54435022-d55a2300-472f-11e9-8489-b7cca06fbe7e.png)
   
   
   With the version: `jdk8u202-b08`
   
   ![Screen Shot 2019-03-15 at 14 52 01](https://user-images.githubusercontent.com/12074169/54436012-0e939280-4732-11e9-979d-da554a806426.png)
   
   
   After briefly debugging, we found that the time was lost between Controller->Invoker & Invoker->Controller (as reverting version already helps to improve the problem there seems to be an issue with the communication with kafka). We didnt find a quick solution so reverting back to the old version, and in the meanwhile will continue to look for the root cause.
   
   ## Related issue and scope
   <!--- Please include a link to a related issue if there is one. -->
   - [ ] I opened an issue to propose and discuss this change (#????)
   
   ## My changes affect the following components
   <!--- Select below all system components are affected by your change. -->
   <!--- Enter an `x` in all applicable boxes. -->
   - [ ] API
   - [x] Controller
   - [ ] Message Bus (e.g., Kafka)
   - [ ] Loadbalancer
   - [x] Invoker
   - [ ] Intrinsic actions (e.g., sequences, conductors)
   - [ ] Data stores (e.g., CouchDB)
   - [ ] Tests
   - [ ] Deployment
   - [ ] CLI
   - [ ] General tooling
   - [ ] Documentation
   
   ## Types of changes
   <!--- What types of changes does your code introduce? Use `x` in all the boxes that apply: -->
   - [x] Bug fix (generally a non-breaking change which closes an issue).
   - [ ] Enhancement or new feature (adds new functionality).
   - [ ] Breaking change (a bug fix or enhancement which changes existing behavior).
   
   ## Checklist:
   <!--- Please review the points below which help you make sure you've covered all aspects of the change you're making. -->
   
   - [x] I signed an [Apache CLA](https://github.com/apache/incubator-openwhisk/blob/master/CONTRIBUTING.md).
   - [x] I reviewed the [style guides](https://github.com/apache/incubator-openwhisk/wiki/Contributing:-Git-guidelines#code-readiness) and followed the recommendations (Travis CI will check :).
   - [ ] I added tests to cover my changes.
   - [ ] My changes require further changes to the documentation.
   - [ ] I updated the documentation where necessary.
   
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services