[FLINK-14309] [test-stability] Add retries and acks config in producer test

[Jiayi-Liao]

What is the purpose of the change

Fix unit test: KafkaProducerTestBase.testOneToOneAtLeastOnceRegularSink

Brief change log

Add retries and acks config to reduce the risk of failure of flush() method.

Verifying this change

Unit Testing.

Does this pull request potentially affect one of the following parts:

Documentation

[flinkbot]

Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
to review your pull request. We will use this comment to track the progress of the review.

Automated Checks

Last check on commit 1226ddc (Wed Oct 16 08:39:28 UTC 2019)

Warnings:

• No documentation files were touched! Remember to keep the Flink docs up to date!

_{Mention the bot in a comment to re-run the automated checks.}

Review Progress

• ✅ 1. The [description] looks good.
  • Approved by @becketqin
• ✅ 2. There is [consensus] that the contribution should go into to Flink.
  • Approved by @becketqin
• ❓ 3. Needs [attention] from.
• ✅ 4. The change fits into the overall [architecture].
  • Approved by @becketqin
• ✅ 5. Overall code [quality] is good.
  • Approved by @becketqin

Please see the Pull Request Review Guide for a full explanation of the review process.

Details

The Bot is tracking the review progress through labels. Labels are applied according to the order of the review items. For consensus, approval by a Flink committer of PMC member is required

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot approve description to approve one or more aspects (aspects: description, consensus, architecture and quality)
• @flinkbot approve all to approve all aspects
• @flinkbot approve-until architecture to approve everything until architecture
• @flinkbot attention @username1 [@username2 ..] to require somebody's attention
• @flinkbot disapprove architecture to remove an approval you gave earlier

[flinkbot]

CI report:

• 49f80fc : CANCELED Build
• 1226ddc : SUCCESS Build

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot run travis re-run the last Travis build

[Jiayi-Liao]

Remove the retries config in exactlyOnce testing because exactly-once producer sets it internally.

@flinkbot run travis

[Jiayi-Liao]

@flinkbot run travis

[becketqin]

@flinkbot approve all

[becketqin]

Thanks for the patch. LGTM.