Hi team, we encountered

connection reset

error occasionally (not all the time) during image build in our CI pipeline, like below.

#12 1469. * What went wrong:
#12 1469. Execution failed for task ':datahub-frontend:compilePlayBinaryScala'.
#12 1469. > Could not resolve all files for configuration ':datahub-frontend:play'.
#12 1469.    > Could not download javax.ws.rs-api.jar (<http://javax.ws.rs:javax.ws.rs-api:2.0.1|javax.ws.rs:javax.ws.rs-api:2.0.1>)
#12 1469.       > Could not get resource '<https://plugins.gradle.org/m2/javax/ws/rs/javax.ws.rs-api/2.0.1/javax.ws.rs-api-2.0.1.jar>'.
#12 1469.          > Could not GET '<https://plugins.gradle.org/m2/javax/ws/rs/javax.ws.rs-api/2.0.1/javax.ws.rs-api-2.0.1.jar>'.
#12 1469.             > Connection reset
#12 1469.    > Could not download scala-reflect.jar (org.scala-lang:scala-reflect:2.11.12)
#12 1469.       > Could not get resource '<https://plugins.gradle.org/m2/org/scala-lang/scala-reflect/2.11.12/scala-reflect-2.11.12.jar>'.
#12 1469.          > Could not GET '<https://plugins.gradle.org/m2/org/scala-lang/scala-reflect/2.11.12/scala-reflect-2.11.12.jar>'.
#12 1469.             > Connection reset
#12 1469.    > Could not download jta.jar (javax.transaction:jta:1.1)
#12 1469.       > Could not get resource '<https://plugins.gradle.org/m2/javax/transaction/jta/1.1/jta-1.1.jar>'.
#12 1469.          > Could not GET '<https://repo.gradle.org/artifactory/jcenter/javax/transaction/jta/1.1/jta-1.1.jar>'.
#12 1469.             > Connection reset
#12 1469.    > Could not download osgi-resource-locator.jar (org.glassfish.hk2:osgi-resource-locator:1.0.1)
#12 1469.       > Could not get resource '<https://plugins.gradle.org/m2/org/glassfish/hk2/osgi-resource-locator/1.0.1/osgi-resource-locator-1.0.1.jar>'.
#12 1469.          > Could not GET '<https://repo.gradle.org/artifactory/jcenter/org/glassfish/hk2/osgi-resource-locator/1.0.1/osgi-resource-locator-1.0.1.jar>'.
#12 1469.             > Connection reset

I shared same issue before here. It was similarly reported in this GitHub issue from Gradle project. Before Gradle 6.6,

connection reset

error (or

SocketException

) was not retried and this could easily cause the build to fail. As such, I try to upgrade Gradle from current 5.6.4 to 6.7 to see if it could fix this issue. I ran below cmd to upgrade.

./gradlew wrapper --gradle-version 6.7

However, the 4 image build jobs for gms, mae-consumer, mce-consumer, and datahub-frontend all failed with below error when i run with Gradle 6.7.

#12 1064. FAILURE: Build failed with an exception.
#12 1064. 
#12 1064. * What went wrong:
#12 1064. Execution failed for task ':metadata-events:mxe-schemas:changedFilesReport'.
#12 1064. > You must declare outputs or use `TaskOutputs.upToDateWhen()` when using the incremental task API
#12 1064.

I am not so familiar with Gradle. Does anyone happen to have some idea how to fix it? I couldn’t find

changedFilesReport

task in any

build.gradle

files in datahub repo.

Hey @boundless-student-48844 - i looked into this briefly and it seems like the changedFileReport task is getting pulled in our restli build step from the restli repo: https://github.com/linkedin/rest.li/blob/eb9e0f48162ee2017b40cbcc5f0798dc1848df19/[…]ns/src/main/java/com/linkedin/pegasus/gradle/PegasusPlugin.java

wow!!! that’s truly fabulous. i pulled the master branch and tried the build in our CI pipeline. Issue is gone! Thanks Gabe happy ghost

Gotta love it when life works out like that!

Haha exactly!! was really such a luck