Hi, looking at the last builds on Travis, you'll notice that our builds are in a pretty bad state: https://travis-ci.org/apache/flink/builds. It seems that the last 15 builds on master all failed.
These are the errors I saw + their status: - Deadlock during cache up/download: I asked travis and they suggested a workaround that I'm currently testing (MALLOC_ARENA=2, in master) - issues opening zip files: The problem there is that some jars in the cache seem to be corrupt. I asked ASF Infra to delete all caches, they did it already, so the problem should be resolved. - Maven failing on the java6 builds. The issue is that Travis updated their build environment (April update [1]), which included a version upgrade of Maven from 3.2.5 to 3.3.1. As per Maven 3.3.1, they are not supporting Java 6 anymore [2]. It seems that travis is rolling back the April environment updates [3] so the issue will probably disappear for a few days until they fixed their environment update. We can resolve the issue by two ways a) drop Java6 support, b) manually install maven on travis (its a matter of 1-2hrs). - The third build on travis (hadoop200-alpha) is failing due to some Flink tests: https://travis-ci.org/apache/flink/jobs/60335907 It would be good if somebody who worked on this recently could take a closer look. Please let me know how you want to fix the Java6/Maven issue! a) Drop Java 6 support for Flink b) Use an older Maven version for now. I'm in favor of option b) because the community recently decided to keep Java6 support. (Fun fact: Java 7 reached its end of support lifecycle [4] in April 2015) Robert [1] http://docs.travis-ci.com/user/build-environment-updates/2015-04-09/ [2] https://issues.apache.org/jira/browse/MNG-5780 [3] https://twitter.com/traviscistatus/status/592902357144498176 [4] http://en.wikipedia.org/wiki/Java_version_history#Java_SE_7_.28July_28.2C_2011.29