There is no indication that protoc 2.5.0 is breaking anything.
Hadoop-trunk builds have been failing way before 1/2 way with:
---
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-surefire-plugin:2.12.3:test
(default-test) on project hadoop-yarn-client: ExecutionException;
neste
Jenkins is running a full test run on trunk using protoc 2.5.0.
https://builds.apache.org/job/Hadoop-trunk/480
And it seems go be going just fine.
If everything looks OK, I'm planing to backport HADOOP-9845 to the
2.1.0-beta branch midday PST tomorrow. This will normalize all builds
failures d