SSHJ-SSH plugin "retry-enable" parameter causing Failed: Unknown: null

[rurobin]

After upgrading to Rundeck opensource 4.11 release, the sshj-ssh plugin errors out when having "retry-enable" parameter set to "true". For example:

project.retry-enable=true

This works fine for:

• Rundeck release 4.9 (sshj plugin version 0.1.3)
• Rundeck release 4.10.2 (sshj plugin version 0.1.4)
  So it only seems to be with sshj plugin 0.1.6 with Rundeck release 4.11.

Per description, the parameter should available to provide:

Enable retry on fail?
Enable a connection retry when the connection fails
Configure Project:project.retry-enable=false
Configure Framework:framework.retry-enable=false
Default value:false

the job log in debug mode:

[workflow] beginExecuteNodeStep(node1.mytest.com): NodeDispatch: CommandItem{label='Issue Date Command', command=[1 words]}
[sshj-ssh] hostname: node1.mytest.com
[sshj-ssh] port: null
[sshj-ssh] username: rurobin
[sshj-ssh] init SSHJDefaultConfig
[sshj-ssh] setting timeouts
[sshj-ssh] getConnectTimeout timeout: 0
[sshj-ssh] getTimeout timeout: 0
[sshj-ssh] keepAliveInterval: 5
[sshj-ssh] retry: true
[sshj-ssh] retryCount: 3
[sshj-ssh] adding loadKnownHosts
[sshj-ssh] open connection
[net.schmizz.sshj.transport.TransportImpl] Client identity string: SSH-2.0-SSHJ_0.35.0
[net.schmizz.sshj.transport.TransportImpl] Server identity string: SSH-2.0-OpenSSH_7.4
[net.schmizz.sshj.SSHClient] Initiating Key Exchange for new connection
[net.schmizz.concurrent.Promise] Setting <> to null
[net.schmizz.sshj.transport.KeyExchanger] Sending SSH_MSG_KEXINIT
[net.schmizz.concurrent.Promise] Setting <> to SOME
[net.schmizz.sshj.transport.KeyExchanger] Received SSH_MSG_KEXINIT
[net.schmizz.concurrent.Promise] Awaiting <>
[net.schmizz.sshj.transport.KeyExchanger] Negotiated algorithms: [ kex=curve25519-sha256; sig=rsa-sha2-512; c2sCipher=aes128-ctr; s2cCipher=aes128-ctr; c2sMAC=hmac-sha1; s2cMAC=hmac-sha1; c2sComp=none; s2cComp=none; ]
[net.schmizz.sshj.transport.KeyExchanger] Received kex followup data
[net.schmizz.sshj.transport.KeyExchanger] Trying to verify host key with net.schmizz.sshj.transport.verification.PromiscuousVerifier@5f57b7ff
[net.schmizz.sshj.transport.KeyExchanger] Sending SSH_MSG_NEWKEYS
[net.schmizz.sshj.transport.KeyExchanger] Received SSH_MSG_NEWKEYS
[net.schmizz.concurrent.Promise] Setting <> to null
[net.schmizz.concurrent.Promise] Setting <> to SOME
[net.schmizz.sshj.transport.TransportImpl] Received SSH_MSG_EXT_INFO
[net.schmizz.sshj.SSHClient] Key exchange took 0.016 seconds
[sshj-ssh] connection done
[net.schmizz.concurrent.Promise] Setting <> to null
[net.schmizz.sshj.transport.TransportImpl] Sending SSH_MSG_SERVICE_REQUEST for ssh-userauth
[net.schmizz.concurrent.Promise] Awaiting <>
[net.schmizz.sshj.transport.TransportImpl] Setting active service to ssh-userauth
[net.schmizz.concurrent.Promise] Setting <> to SOME
[net.schmizz.concurrent.Promise] Setting <> to null
[net.schmizz.sshj.userauth.UserAuthImpl] Trying password auth...
[net.schmizz.sshj.userauth.method.AuthPassword] Requesting password for [AccountResource] rur...@node1.mytest.com
[net.schmizz.concurrent.Promise] Awaiting <>
[net.schmizz.sshj.transport.TransportImpl] Setting active service to ssh-connection
[net.schmizz.concurrent.Promise] Setting <> to true
[net.schmizz.sshj.userauth.UserAuthImpl] password auth successful
[sshj-ssh] authentication set
[sshj-ssh] connection done
[sshj-ssh] open connection
[net.schmizz.sshj.transport.TransportImpl] Client identity string: SSH-2.0-SSHJ_0.35.0
[net.schmizz.sshj.transport.TransportImpl] Server identity string: SSH-2.0-OpenSSH_7.4
SSH command execution error: Unknown: null
[net.schmizz.sshj.transport.TransportImpl] Disconnected - BY_APPLICATION
[net.schmizz.sshj.connection.ConnectionImpl] Notified of net.schmizz.sshj.transport.TransportException: [BY_APPLICATION] Disconnected
[net.schmizz.sshj.transport.TransportImpl] Sending SSH_MSG_DISCONNECT: reason=[BY_APPLICATION], msg=[]
[net.schmizz.concurrent.Promise] Setting <> to SOME
Failed: Unknown: null
[workflow] finishExecuteNodeStep(node1.mytest.com): NodeDispatch: Unknown: null
[net.schmizz.sshj.transport.Reader] Stopping

[MegaDrive68k]

Reproduced. Thanks for your feedback @rurobin

[LazyUncle]

Dear Support,

I can confirm issue also found on rundeck version 5.9 with sshj-plugin 0.16 if I enable 'retry on fail' in sshj-executor config

---

1. Enable retry on sshj-executor : Job fail

error_service.log

2. Disable retry on sshj-executor : Job success

---

system info

Thanks

[xpufx]

This issue is also present on rundeck 5.10, SSHJ 0.17 .