Spark 1.2.0 dependency checksum fail

[kul]

I suppose this is happening only with lein. For dependency [org.apache.spark/spark-core_2.10 "1.2.0"], downloading jars fail with

Caused by: org.sonatype.aether.transfer.ArtifactTransferException: Could not transfer artifact org.apache.spark:spark-core_2.10:pom:1.2.0 from/to central (https://repo1.maven.org/maven2/): Checksum validation failed, expected ./spark-core_2.10/1.2.0/spark-core_2.10-1.2.0.pom: but is bd943cf1637b461bbc63154264229b1f023b7d24
        at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:951)
        at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:941)
        at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:669)
        at org.sonatype.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:60)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        ... 1 more

[kul]

This is reproducible since 2.4.2 till master.

[hypirion]

This is because their pom md5 is not an md5 checksum (well, it isn't just an md5 checksum, which is the problem). You should file a bug report to Apache Spark that their pom MD5 for said version is broken, so that they avoid the problem in the future.

To turn off failing during checksum checks, add this to the project map:

:checksum :warn

It should be obvious that this is not recommended, so if they manage to fix the issue, either during this release or in the future, you should remove said line.

[kul]

thanks @hypirion .
https://issues.apache.org/jira/browse/SPARK-5308