I've repeatedly searched around for a way to just add proper retry to maven or gradle, and haven't found anything :-(
I had thought that we altered our builds in such a way that the .m2 directory was permitted to survive across builds. True that it isn't hermetic, precisely, but it is pretty safe to treat as a cache of immutable data, which is no more dangerous than having a caching incremental build system. Kenn On Wed, Nov 29, 2017 at 3:39 PM, Eugene Kirpichov <kirpic...@google.com> wrote: > Our builds often hit transient Maven network issues, e.g. this one > https://builds.apache.org/job/beam_PostCommit_Java_ > MavenInstall/5331/consoleFull > > 2017-11-29T02:18:02.936 [ERROR] Failed to execute goal on project > beam-sdks-java-io-hadoop-jdk1.8-tests: Could not resolve dependencies for > project > org.apache.beam:beam-sdks-java-io-hadoop-jdk1.8-tests:jar:2.3.0-SNAPSHOT: > Could not transfer artifact org.apache.derby:derby:jar:10.10.2.0 from/to > central (https://repo.maven.apache.org/maven2): GET request of: > org/apache/derby/derby/10.10.2.0/derby-10.10.2.0.jar from central failed: > Connection reset -> [Help 1] > > It'd be good to increase reliability of our builds. repo.maven.apache.org > seems quite unreliable. > > I tried finding a way to configure Maven to retry such network errors and > it appears to be impossible [will be happy if someone proves me wrong]. > > Would this issue be resolved if we used multiple mirrors? > https://maven.apache.org/guides/mini/guide-mirror-settings.html Any other > suggestions? >