Critical Description
In order to speed up the commit validation the couchdb.plt is preserved across runs. It's located at ${workspace}/build/couchdb/couchdb.plt
Currently the file is recreated on every run, which increase the build to for about 1h. You can see that it is generated in the logs [1]:
Creating PLT /home/jenkins/jenkins/workspace/couchdb-gerrit-300/build/couchdb/couchdb.plt ...
After a quick look at the build script it looks like it expectes that jenkins restores the couchdb.plt into ${workspace}/couchdb.plt. But there is no such file. Hence it can't be copied to ${workspace}/build/couchdb/couchdb.plt.
I suspect that something with preserving the file on the Jenkins side is configured wrongly.
[1]: http://factory.couchbase.com/job/couchdb-gerrit-300/207/consoleFull