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Bug
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Resolution: Unresolved
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Major
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Jenkins 2.121.3
ss-agent-plugin 1.15
Random error `Text file busy` when using ssh-agent
[Pipeline] {
[Pipeline] withCredentials
[Pipeline] {
[Pipeline] sshagent
[ssh-agent] Using credentials APP_SSH_KEY
[ssh-agent] Looking for ssh-agent implementation...
[ssh-agent] Exec ssh-agent (binary ssh-agent on a remote machine)
$ ssh-agent
SSH_AUTH_SOCK=/tmp/ssh-QWEfM28796/agent.28796
SSH_AGENT_PID=28800
$ ssh-add /jenkins/workspace/myjob@tmp/private_key_1395343975081553490.key
Identity added: /jenkins/workspace/myjob@tmp/private_key_1395343975081553490.key (/jenkins/workspace/myjob@tmp/private_key_1395343975081553490.key)
$ ssh-add /jenkins/workspace/myjob@tmp/private_key_503513565487944952.key
ssh_askpass: exec(/jenkins/workspace/myjob@tmp/askpass_1445148365080710750.sh): Text file busy [Pipeline] // sshagent [Pipeline] }
[Pipeline] // withCredentials
[Pipeline] }
[Pipeline] // timestamps
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
ERROR: Failed to run ssh-add
Finished: FAILURE
[JENKINS-53387] ssh-add - Text file busy
phgr100x phgr100x
added a comment - > The issue here appears to be caused by a Java bug, https://bugs.openjdk.java.net/browse/JDK-8068370. The issue is possible when multiple threads open a file for writing, close it, and then execute them (each thread using its own file). Even if all files are closed "properly", due to how file handles work around fork/exec, a child process in one thread may inherit the handle to anther thread's open file, and thus break that thread's later subprocess call.
phgr100x phgr100x
added a comment - https://issues.jenkins-ci.org/browse/JENKINS-48258?focusedCommentId=324590&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-324590
> The issue here appears to be caused by a Java bug, https://bugs.openjdk.java.net/browse/JDK-8068370 . The issue is possible when multiple threads open a file for writing, close it, and then execute them (each thread using its own file). Even if all files are closed "properly", due to how file handles work around fork/exec, a child process in one thread may inherit the handle to anther thread's open file, and thus break that thread's later subprocess call. 
Similar issue on Docker : https://github.com/moby/moby/issues/9547.
Users recommend to use sync command after chmod action.