Issue

My build hangs when doing a git fetch on a windows node
My build fails during git fetch on a windows node

Example of hanging build (that eventually timeout)

Started by user admin
Building remotely on win-node in workspace C:\Users\vagrant\win-node\workspace\myFreestyle
Cloning the remote Git repository
Cloning repository https://github.com/user/repo.git
 > git init C:\Users\vagrant\win-node\workspace\myFreestyle # timeout=10
Fetching upstream changes from https://github.com/user/repo.git
 > git --version # timeout=10
using GIT_ASKPASS to set credentials user-up
 > git fetch --tags --progress https://github.com/user/repo.git +refs/heads/*:refs/remotes/origin/*
ERROR: Timeout after 10 minutes
ERROR: Error cloning remote repo 'origin'
hudson.plugins.git.GitException: Command "git fetch --tags --progress https://github.com/user/repo.git +refs/heads/*:refs/remotes/origin/*" returned status code -1:
stdout:
stderr:
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1772)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1516)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:67)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:318)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:515)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:152)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:145)
	at hudson.remoting.UserRequest.perform(UserRequest.java:153)
	at hudson.remoting.UserRequest.perform(UserRequest.java:50)
	at hudson.remoting.Request$2.run(Request.java:336)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at hudson.remoting.Engine$1$1.run(Engine.java:94)
	at java.lang.Thread.run(Unknown Source)
	at ......remote call to Channel to /127.0.0.1(Native Method)
	at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1537)
	at hudson.remoting.UserResponse.retrieve(UserRequest.java:253)
	at hudson.remoting.Channel.call(Channel.java:822)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:145)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:131)
	at com.sun.proxy.$Proxy95.execute(Unknown Source)
	at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1054)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1094)
	at hudson.scm.SCM.checkout(SCM.java:495)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1278)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:604)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
	at hudson.model.Run.execute(Run.java:1728)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:404)
ERROR: null
Finished: FAILURE

Example of failed build

ERROR: Error cloning remote repo 'origin'
hudson.plugins.git.GitException: Command "git -c core.askpass=true fetch --tags --progress https://github.com/user/repo.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
stdout: 
stderr: 
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
Assertion failed!

Program: C:\Program Files\Git-2.8.3-x64\mingw64\libexec\git-core\git-credential-store.exe
File: exec_cmd.c, Line 23

Expression: argv0_path
remote: Invalid username or password.
fatal: Authentication failed for 'https://github.com/user/repo.git/'

	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:1727)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1463)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:63)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:314)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:511)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:152)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:145)
	at hudson.remoting.UserRequest.perform(UserRequest.java:120)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:326)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at hudson.remoting.Engine$1$1.run(Engine.java:62)
	at java.lang.Thread.run(Unknown Source)
	at ......remote call to win-node(Native Method)
	at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1416)
	at hudson.remoting.UserResponse.retrieve(UserRequest.java:220)
	at hudson.remoting.Channel.call(Channel.java:781)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:145)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:131)
	at com.sun.proxy.$Proxy65.execute(Unknown Source)
	at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1057)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1097)
	at hudson.scm.SCM.checkout(SCM.java:485)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1276)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:607)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
	at hudson.model.Run.execute(Run.java:1738)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:410)
ERROR: null

Environment

CloudBees Jenkins Enterprise
Windows
Git for Windows

Related Issue

Resolution

If you have installed a recent version of Git for Windows, during the installation there is an option to enable/disabled the Git Credential Manager for Windows.

This option is enabled by default and set the git property credential.helper at a system level. This forces the git client to use the Git Credentials Manager for Windows instead of the local configuration provided by Jenkins. Consequently it makes your build either hang (if running the node as an System Account) or fail (if running the node as a local User).

To workaround that behavior there are 3 different solutions:

Unset the system property via a terminal

Run as administrator:

git config --system --unset credential.helper

If configuration exists for the account used to run the Jenkins Agent process, you may need to remove the system property for it. By editing the $USER_HOME/.gitconfig file or running the following command:

git config --global --unset credential.helper

You may also need to edit the global config file by doing git config --edit --global and remove the line:
```
helper = manager
```
Then potentially add the line:
```
[core]
   askpass =
```
Note: It is best to reboot the Jenkins Agent machine to ensure no orphan “Windows Git Credential Manager” processes previously started by Jenkins are still running.
Uninstall/Re-install git-for-window and ensure to disable the option “Enable Git Credential Manager” during the installation.
Use the portable version of git-for-windows (no installer)

Comments

10 comments

Dave Parson

January 06, 2017 21:08
For solution #1, you may need to perform a couple additional steps:

1. Edit the .gitconfig for the account used to run the Jenkins Slave process, removing the credential.helper setting.
2. Reboot the Jenkins Slave machine to ensure no orphan "Windows Git Credential Manager" processes previously started by Jenkins are still running.
1
Allan Burdajewicz

February 26, 2017 23:21
Thanks Dave. We've updated the article.
0
Vasan J.s.

March 03, 2017 12:27
This was a life saver!!

Thanks a heap!!!
2
Ralph Jansen

March 22, 2017 07:45
Disabling the credential manager (after uninstalling) in the installation wizard fixed the issue for me!
1
Naibedyakar00 Naibedyakar00

May 17, 2017 15:12
#2 worked for me. Thanks, you are a life saver.
1
Isuru Madhushankha

May 30, 2017 11:53

Edited
that fix, worked well... thanks a lot.
1
Darin Mcgrew

August 15, 2017 22:24
Thanks. A new team is using GitHub and Windows for the first time. (Before, GitHub was used with Linux and TFS was used with Windows.) They were running into this issue. It's good to have it fixed.
0
Marius Bob

September 14, 2017 07:17
uninstalled git and installed it again with "Enable Git Credential Manager" unchecked.

It worked! You just saved me some hours of working :)

Thanks!
0
Harsh Sarode

February 27, 2018 07:31
hey Thank you so much, the second one worked for me!!!!
0
Rafael Rezende

December 14, 2018 16:09

Edited
I like the #3 better, but today I noticed that the Portable one comes with a gitconfig where the helper = manager is provided by default in mingw64\etc\gitconfig:

[credential]
helper = manager

When I use it (hence, Jenkins installs it automatically), the following empty file gets created in the node: C:\Users\<user>\AppData\Local\GitCredentialManager\tenant.cache

Is this expected?

(reference version: https://github.com/git-for-windows/git/releases/download/v2.20.0.windows.1/PortableGit-2.20.0-64-bit.7z.exe)
0