KAFKA-10815 EosTestDriver#verifyAllTransactionFinished should break loop if all partitions are verified

[chia7712]

issue: https://issues.apache.org/jira/browse/KAFKA-10815
If we don't break it when all partitions are verified, the loop will take 10 mins ...

see https://travis-ci.com/github/apache/kafka/jobs/455103274 for related timeout

2994[INFO:2020-12-06 06:06:35,755]: Triggering test 10 of 32...
2995[INFO:2020-12-06 06:06:35,765]: RunnerClient: Loading test {'directory': '/opt/kafka-dev/tests/kafkatest/tests/streams', 'file_name': 'streams_eos_test.py', 'cls_name': 'StreamsEosTest', 'method_name': 'test_rebalance_complex', 'injected_args': {'processing_guarantee': 'exactly_once'}}
2996[INFO:2020-12-06 06:06:35,771]: RunnerClient: kafkatest.tests.streams.streams_eos_test.StreamsEosTest.test_rebalance_complex.processing_guarantee=exactly_once: Setting up...
2997[INFO:2020-12-06 06:07:12,200]: RunnerClient: kafkatest.tests.streams.streams_eos_test.StreamsEosTest.test_rebalance_complex.processing_guarantee=exactly_once: Running...
2998
2999
3000No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself.
3001Check the details on how to adjust your build configuration on: https://docs.travis-ci.com/user/common-build-problems/#build-times-out-because-no-output-was-received

this issue is related to cb88be4

Committer Checklist (excluded from commit message)

• Verify design and implementation
• Verify test coverage and CI build status
• Verify documentation (including upgrade notes)

[chia7712]

@vvcephei @mjsax Could you please take a look at this one-line change? This issue slowdown streams_eos_test(10 mins) and it obstructs us from running system tests on Travis (due to timeout).

[mjsax]

LGTM.

Great find @chia7712! -- Can you make sure to cherry-pick this fix to older branches, too? At least 2.7, maybe even further. Leave it up to your judgment.

[mjsax]

@chia7712 -- thanks for getting this into 2.7 and 2.6. (Btw: there is no need to do PRs. You can also cherry-pick and push directly.)

[chia7712]

thanks for getting this into 2.7 and 2.6. (Btw: there is no need to do PRs. You can also cherry-pick and push directly.)

Thanks for kind reminder!