jenkin构建报错信息及解决方案

报错信息1：Exception when publishing, exception message

最近一直在做Jenkins项目，也经常会出现一些报错信息，今天在测试的时候出现了下面的报错信息，所以现在记录一下我的报错过程及解决方案。

...............省略部分内容........................
[JENKINS] Archiving /root/.jenkins/workspace/one_plus/target/easy-springmvc-maven.war to springmvc-maven/easy-springmvc-maven/0.0.1-SNAPSHOT/easy-springmvc-maven-0.0.1-SNAPSHOT.war
channel stopped
SSH: Connecting from host [bogon]
SSH: Connecting with configuration [test] ...
ERROR: Exception when publishing, exception message [Failed to connect and initialize SSH connection. Message: [Failed to connect session for config [test]. Message [java.net.NoRouteToHostException: 没有到主机的路由 (Host unreachable)]]]
Finished: UNSTABLE

原因及解决办法：
在我思考并查找后发现原因是我的连接的后端服务器IP地址改变了，我之前用的地址是192.168.119.134，但是因为后端地址改变了没有更换所以连接不成功。

解决：更换为正确的地址测试成功，再次发送Jenkins服务器端的密钥

[root@bogon ~]# ssh-copy-id -i root@192.168.119.148

重新构建：成功

报错信息2：

Started by user jun
Running as SYSTEM
Building in workspace /root/.jenkins/workspace/test
The recommended git tool is: NONE
No credentials specified
Cloning the remote Git repository
Cloning repository https://gitee.com/yangge666a/testweb> git init /root/.jenkins/workspace/test # timeout=10
ERROR: Error cloning remote repo 'origin'
hudson.plugins.git.GitException: Could not init /root/.jenkins/workspace/testat org.jenkinsci.plugins.gitclient.CliGitAPIImpl$5.execute(CliGitAPIImpl.java:1049)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:802)at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1225)at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1308)at hudson.scm.SCM.checkout(SCM.java:540)at hudson.model.AbstractProject.checkout(AbstractProject.java:1217)at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:647)at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:85)at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:519)at hudson.model.Run.execute(Run.java:1897)at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543)at hudson.model.ResourceController.execute(ResourceController.java:101)at hudson.model.Executor.run(Executor.java:442)
Caused by: hudson.plugins.git.GitException: Error performing git command: git init /root/.jenkins/workspace/testat org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2746)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2660)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2656)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommand(CliGitAPIImpl.java:1981)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$5.execute(CliGitAPIImpl.java:1047)... 12 more
Caused by: java.io.IOException: Cannot run program "git" (in directory "/root/.jenkins/workspace/test"): error=2, 没有那个文件或目录at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)at hudson.Proc$LocalProc.<init>(Proc.java:254)at hudson.Proc$LocalProc.<init>(Proc.java:223)at hudson.Launcher$LocalLauncher.launch(Launcher.java:997)at hudson.Launcher$ProcStarter.start(Launcher.java:509)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2727)... 16 more
Caused by: java.io.IOException: error=2, 没有那个文件或目录at java.lang.UNIXProcess.forkAndExec(Native Method)at java.lang.UNIXProcess.<init>(UNIXProcess.java:247)at java.lang.ProcessImpl.start(ProcessImpl.java:134)at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)... 21 more
ERROR: Error cloning remote repo 'origin'
Sending e-mails to: yolo_yi@163.com
Finished: FAILURE

解决方案：

java.io.IOException: Cannot run program “git” (in directory “/root/.jenkins/workspace/test”): error=2, 没有那个文件或目录,看了这句话说不能运行git项目，说明在jenkins服务器上没有安装git

在Jenkins服务器上做了以下操作

[root@localhost ]# yum -y install git

报错信息3：ERROR: Exception when publishing, exception message [Exec exit status not zero. Status [127]]

...................前面信息太多省略........................
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  01:39 min
[INFO] Finished at: 2023-01-15T21:07:55+08:00
[INFO] ------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
[JENKINS] Archiving /root/.jenkins/workspace/test/pom.xml to springmvc-maven/easy-springmvc-maven/0.0.1-SNAPSHOT/easy-springmvc-maven-0.0.1-SNAPSHOT.pom
[JENKINS] Archiving /root/.jenkins/workspace/test/target/easy-springmvc-maven.war to springmvc-maven/easy-springmvc-maven/0.0.1-SNAPSHOT/easy-springmvc-maven-0.0.1-SNAPSHOT.war
SSH: Connecting from host [localhost]
SSH: Connecting with configuration [test162] ...
channel stopped
SSH: EXEC: completed after 214 ms
SSH: Disconnecting configuration [test162] ...
ERROR: Exception when publishing, exception message [Exec exit status not zero. Status [127]]
Sending e-mails to: yolo_yi@163.com
Finished: UNSTABLE

原因：没有将脚本文件放在脚本目录下

我定义的：

但是我存放的错误：

再次构建成功：

报错信息4：

Started by user jun
Running as SYSTEM
Building in workspace /root/.jenkins/workspace/gitlab
The recommended git tool is: NONE
using credential 43d744f4-170f-426d-a34b-cccca19404b9> git rev-parse --resolve-git-dir /root/.jenkins/workspace/gitlab/.git # timeout=10
Fetching changes from the remote Git repository> git config remote.origin.url git@192.168.119.161:root/jenkins-for-gitlab.git # timeout=10
Fetching upstream changes from git@192.168.119.161:root/jenkins-for-gitlab.git> git --version # timeout=10> git --version # 'git version 1.8.3.1'
using GIT_SSH to set credentials gitlab
Verifying host key using known hosts file> git fetch --tags --progress git@192.168.119.161:root/jenkins-for-gitlab.git +refs/heads/*:refs/remotes/origin/* # timeout=10
ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from git@192.168.119.161:root/jenkins-for-gitlab.gitat hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:1002)at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1244)at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1308)at hudson.scm.SCM.checkout(SCM.java:540)at hudson.model.AbstractProject.checkout(AbstractProject.java:1217)at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:647)at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:85)at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:519)at hudson.model.Run.execute(Run.java:1897)at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)at hudson.model.ResourceController.execute(ResourceController.java:101)at hudson.model.Executor.run(Executor.java:442)
Caused by: hudson.plugins.git.GitException: Command "git fetch --tags --progress git@192.168.119.161:root/jenkins-for-gitlab.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
stdout:
stderr: No ECDSA host key is known for 192.168.119.161 and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.Please make sure you have the correct access rights
and the repository exists.at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2734)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:2111)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$500(CliGitAPIImpl.java:87)at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:623)at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:1000)... 11 more
ERROR: Error fetching remote repo 'origin'
Finished: FAILURE

出错原因：

stderr: No ECDSA host key is known for 192.168.119.161 and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.

通过这几行可以看出192.168.119.161没有被分发密钥，所以主机认证失败

解决：

##我们在Jenkins向gitlab分发密钥，再次构建
[root@localhost ~]#  ssh-copy-id -i root@192.168.119.161
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.119.161 (192.168.119.161)' can't be established.
ECDSA key fingerprint is SHA256:ntUPfvW1LRY8s42ot/wG2AlcFvtzgig3SJWTGLCnTLI.
ECDSA key fingerprint is MD5:5a:a0:c9:8a:24:63:fb:90:82:1f:d8:aa:4d:5d:67:2f.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.119.161's password: Number of key(s) added: 1Now try logging into the machine, with:   "ssh 'root@192.168.119.161'"
and check to make sure that only the key(s) you wanted were added.[root@localhost ~]# ssh root@192.168.119.161
Last login: Sun Jan 15 21:26:00 2023 from 192.168.119.1
[root@localhost ~]# exit
登出
Connection to 192.168.119.161 closed.

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