Issue 1:
I have searched the issues of this repository and believe that this is not a duplicate.

I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

Dubbo version: 2.7.0+

Java version: 1.8

Optimize the scene

1. Performance improvement scenario description
2. Unoptimized benchmark performance
3. Optimized benchmark performance
4. Benchmarking tool： https://github.com/dubbo/dubbo-benchmark

No
issues
description
status
pull request

1
#2737
epoll
done
#2738

2

3

4

Issue 2:
I have searched the issues of this repository and believe that this is not a duplicate.

I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

Travis CI build environment

Dubbo version: xxx

Operating System version: xxx

Java version: xxx

Steps to reproduce this issue

Run build in travis CI from latest master branch

xxx

xxx

xxx

Pls. provide [GitHub address] to reproduce this issue.

Expected Result

Build should not failed because of dubbo-metadata-report-zookeeper UT. below are current error log while running UT on dubbo-metadata-report-zookeeper

Running org.apache.dubbo.metadata.store.zookeeper.ZookeeperMetadataReportTest

log4j:WARN No appenders could be found for logger (org.apache.dubbo.common.logger.LoggerFactory).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 4.305 sec <<< FAILURE! - in org.apache.dubbo.metadata.store.zookeeper.ZookeeperMetadataReportTest

testStoreProvider(org.apache.dubbo.metadata.store.zookeeper.ZookeeperMetadataReportTest) Time elapsed: 2.461 sec <<< FAILURE!

java.lang.AssertionError

at org.apache.dubbo.metadata.store.zookeeper.ZookeeperMetadataReportTest.testStoreProvider(ZookeeperMetadataReportTest.java:59)

Results :

Failed tests:

ZookeeperMetadataReportTest.testStoreProvider:59

Actual Result

What actually happens?

If there is an exception, please attach the exception trace:

[�[1;31mERROR�[m] Failed to execute goal �[32morg.apache.maven.plugins:maven-surefire-plugin:2.19.1:test�[m �[1m(default-test)�[m on project �[36mdubbo-metadata-report-zookeeper�[m: �[1;31mThere are test failures.�[m
[�[1;31mERROR�[m] �[1;31m�[m
[�[1;31mERROR�[m] �[1;31mPlease refer to /home/travis/build/apache/incubator-dubbo/dubbo-metadata-report/dubbo-metadata-report-zookeeper/target/surefire-reports for the individual test results.�[m
[�[1;31mERROR�[m] -> �[1m[Help 1]�[m
[�[1;31mERROR�[m]
[�[1;31mERROR�[m] To see the full stack trace of the errors, re-run Maven with the �[1m-e�[m switch.
[�[1;31mERROR�[m] Re-run Maven using the �[1m-X�[m switch to enable full debug logging.
[�[1;31mERROR�[m]
[�[1;31mERROR�[m] For more information about the errors and possible solutions, please read the following articles:
[�[1;31mERROR�[m] �[1m[Help 1]�[m http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[�[1;31mERROR�[m]
[�[1;31mERROR�[m] After correcting the problems, you can resume the build with the command
[�[1;31mERROR�[m] �[1mmvn <goals> -rf :dubbo-metadata-report-zookeeper�[m
/home/travis/.travis/job_stages: line 523: 4690 Terminated travis_jigger "${!}" "${timeout}" "${cmd[@]}"