【发布时间】：2017-07-12 18:54:15
【问题描述】：
在非自动挂载的文件系统上，“mvn clean”有效（“mvn package”也是如此）。在自动挂载的文件系统上，“mvn clean”以下列方式失败：
$ mvn clean
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building glutmax-sentiment-analysis 1.0
[INFO] ------------------------------------------------------------------------
[WARNING] Failed to read tracking file /nethome/guest/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom.lastUpdated
java.io.IOException: Input/output error
at sun.nio.ch.FileDispatcherImpl.lock0(Native Method)
at sun.nio.ch.FileDispatcherImpl.lock(FileDispatcherImpl.java:90)
[...]
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom
[WARNING] Failed to write tracking file /nethome/guest/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom.lastUpdated
java.io.IOException: Input/output error
at sun.nio.ch.FileDispatcherImpl.lock0(Native Method)
at sun.nio.ch.FileDispatcherImpl.lock(FileDispatcherImpl.java:90)
[...]
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 04:13 min
[INFO] Finished at: 2017-07-12T11:34:55-07:00
[INFO] Final Memory: 23M/1445M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to central (https://repo.maven.apache.org/maven2): Input/output error -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
$ mvn -version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T12:39:06-07:00)
Maven home: /usr/local/maven
Java version: 1.8.0_121, vendor: Oracle Corporation
Java home: /usr/local/jdk1.8.0_121/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-514.el7.x86_64", arch: "amd64", family: "unix"
很明显，我遗漏了一些配置信息，但在寻找答案时，我发现我需要删除 ~/.m2/*, chmod 777 ~/.m2，并确保我的 JAVA_HOME 是正确的.这些建议都没有奏效。我错过了什么？
有趣的是，Gradle 似乎也不适用于自动挂载的文件系统。
【问题讨论】：
-
用户能够创建目录、文件、更改权限等。“mount”输出显示用户具有“rw”权限：10.10.10.10:/ms/ms.share/services/ ps/guest on /nethome/guest type nfs (rw,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans= 2,sec=sys,mountaddr=10.20.30.70,mountvers=3,mountport=2049,mountproto=tcp,local_lock=none,addr=10.20.30.70)
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"用户可以创建目录" - 哪个用户？您确定是同一用户运行 Maven 作业吗？
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我相信是的。我可以登录并执行 mkdir ~/.m2，但是当我删除 ~/.m2 并执行“mvn 包”时，maven 报告“无法在 /nethome/
/.m2/repository 创建本地存储库”。我在挂载选项中添加了“hard,nolock,noac”，但仍然没有乐趣。