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https://issues.apache.org/jira/browse/FLINK-8819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16626300#comment-16626300
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ASF GitHub Bot commented on FLINK-8819:
---------------------------------------

GJL commented on a change in pull request #6642: [FLINK-8819][travis] Rework 
travis script to use stages
URL: https://github.com/apache/flink/pull/6642#discussion_r219955579
 
 

 ##########
 File path: tools/travis_mvn_watchdog.sh
 ##########
 @@ -160,10 +55,11 @@ esac
 # -nsu option forbids downloading snapshot artifacts. The only snapshot 
artifacts we depend are from
 # Flink, which however should all be built locally. see FLINK-7230
 MVN_LOGGING_OPTIONS="-Dlog.dir=${ARTIFACTS_DIR} 
-Dlog4j.configuration=file://$LOG4J_PROPERTIES 
-Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn"
-MVN_COMMON_OPTIONS="-nsu -Dflink.forkCount=2 -Dflink.forkCountTestPackage=2 -B 
$MVN_LOGGING_OPTIONS"
-MVN_COMPILE_OPTIONS="$MVN_COMPILE_OPTIONS -DskipTests"
+MVN_COMMON_OPTIONS="-nsu -Dflink.forkCount=2 -Dflink.forkCountTestPackage=2 
-Dfast -B $MVN_LOGGING_OPTIONS"
+MVN_COMPILE_OPTIONS="-DskipTests"
+MVN_TEST_OPTIONS="$MVN_LOGGING_OPTIONS"
 
-MVN_COMPILE="mvn $MVN_COMMON_OPTIONS $MVN_COMPILE_OPTIONS $PROFILE 
$MVN_COMPILE_MODULES clean install"
+MVN_COMPILE="mvn $MVN_COMMON_OPTIONS $MVN_COMPILE_OPTIONS $PROFILE 
$MVN_COMPILE_MODULES install"
 MVN_TEST="mvn $MVN_COMMON_OPTIONS $MVN_TEST_OPTIONS $PROFILE $MVN_TEST_MODULES 
verify"
 
 MVN_PID="${ARTIFACTS_DIR}/watchdog.mvn.pid"
 
 Review comment:
   ok

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> Rework travis script to use build stages
> ----------------------------------------
>
>                 Key: FLINK-8819
>                 URL: https://issues.apache.org/jira/browse/FLINK-8819
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Build System, Travis
>            Reporter: Chesnay Schepler
>            Assignee: Chesnay Schepler
>            Priority: Trivial
>              Labels: pull-request-available
>
> This issue is for tracking efforts to rework our Travis scripts to use 
> [stages|https://docs.travis-ci.com/user/build-stages/].
> This feature allows us to define a sequence of jobs that are run one after 
> another. This implies that we can define dependencies between jobs, in 
> contrast to our existing jobs that have to be self-contained.
> As an example, we could have a compile stage, and a test stage with multiple 
> jobs.
> The main benefit here is that we no longer have to compile modules multiple 
> times, which would reduce our build times.
> The major issue here however is that there is no _proper_ support for passing 
> build-artifacts from one stage to the next. According to this 
> [issue|https://github.com/travis-ci/beta-features/issues/28] it is on their 
> to-do-list however.
> In the mean-time we could manually transfer the artifacts between stages by 
> either using the Travis cache or some other external storage. The cache 
> solution would work by setting up a cached directory (just like the mvn 
> cache) and creating build-scope directories within containing the artifacts 
> (I have a prototype that works like this).
> The major concern here is that of cleaning up the cache/storage.
>  We can clean things up if
>  * our script fails
>  * the last stage succeeds.
> We can *not* clean things up if
>  * the build is canceled
>  * travis fails the build due to a timeout or similar
> as apparently there is [no way to run a script at the end of a 
> build|https://github.com/travis-ci/travis-ci/issues/4221].
> Thus we would either have to periodically clear the cache, or encode more 
> information into the cached files that would allow _other_ builds to clean up 
> stale date. (For example the build number or date).



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