Build failed in Jenkins: cloudstack-marvin #881

[Apache Jenkins Server]

See <https://builds.apache.org/job/cloudstack-marvin/881/>

------------------------------------------
Started by upstream project "cloudstack-apidocs-master" build number 708
originally caused by: 
 Started by upstream project "cloudstack-master-maven" build number 1507
 originally caused by: 
  Started by an SCM change
Building remotely on ubuntu2 in workspace 
<https://builds.apache.org/job/cloudstack-marvin/ws/>
Checkout:cloudstack-marvin / 
<https://builds.apache.org/job/cloudstack-marvin/ws/> - 
hudson.remoting.Channel@466d7d8c:ubuntu2
Using strategy: Default
Last Built Revision: Revision 923deba89b8c6624f7b108062a31550b19a9b08b 
(origin/master)
Fetching changes from 1 remote Git repository
Fetching upstream changes from 
https://git-wip-us.apache.org/repos/asf/cloudstack.git
Commencing build of Revision 971c40d98e07ab6cddb8e6db5095c1acea935815 
(origin/master)
Checking out Revision 971c40d98e07ab6cddb8e6db5095c1acea935815 (origin/master)
FATAL: Could not apply tag jenkins-cloudstack-marvin-881
hudson.plugins.git.GitException: Could not apply tag 
jenkins-cloudstack-marvin-881
        at hudson.plugins.git.GitAPI.tag(GitAPI.java:829)
        at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:1270)
        at hudson.plugins.git.GitSCM$4.invoke(GitSCM.java:1231)
        at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2348)
        at hudson.remoting.UserRequest.perform(UserRequest.java:118)
        at hudson.remoting.UserRequest.perform(UserRequest.java:48)
        at hudson.remoting.Request$2.run(Request.java:326)
        at 
hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:679)
Caused by: hudson.plugins.git.GitException: Command "git tag -a -f -m Jenkins 
Build #881 jenkins-cloudstack-marvin-881" returned status code 128:
stdout: 
stderr: 
*** Please tell me who you are.

Run

  git config --global user.email "y...@example.com"
  git config --global user.name "Your Name"

to set your account's default identity.
Omit --global to set the identity only in this repository.

fatal: empty ident  <jenk...@vesta.apache.org> not allowed

        at hudson.plugins.git.GitAPI.launchCommandIn(GitAPI.java:897)
        at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:858)
        at hudson.plugins.git.GitAPI.launchCommand(GitAPI.java:868)
        at hudson.plugins.git.GitAPI.tag(GitAPI.java:827)
        ... 12 more