Connection reset by peer on an AIX host provisioning

[Michaël Pailloncy]

Hi all,

I have a problem to provision an AIX host using Ansible (see https://github.com/ansible/ansible/issues/8164 for details).

$> ansible -i myhosts aix -m ping -vvvv

Result :

<aix> ESTABLISH CONNECTION FOR USER: myuser
<aix> REMOTE_MODULE ping
<aix> EXEC ['ssh', '-C', '-tt', '-vvv', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=60s', '-o', 'ControlPath=/ansible/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', 'KbdInteractiveAuthentication=no', '-o', 'PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey', '-o', 'PasswordAuthentication=no', '-o', 'User=myuser', '-o', 'ConnectTimeout=10', 'aix', "/bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163 && chmod a+rx $HOME/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163 && echo $HOME/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163'"]
<aix> PUT /tmp/tmpb1NMJ5 TO /ansible/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163/ping

aix | FAILED => failed to transfer file to /ansible/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163/ping:
Couldn't read packet: Connection reset by peer

I don't think it's a network problem since I can connect successfully using SSH on this host. 

Thanks in advance.

Michaël Pailloncy

[Michael DeHaan]

Not sure.

Try running with -vvvv (four v's) to get SSH debug info out of the system.

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[Lucas, Sascha]

Hi Michaël,

> <aix> PUT /tmp/tmpb1NMJ5 TO /ansible/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163/ping
>
> aix | FAILED => failed to transfer file to /ansible/.ansible/tmp/ansible-tmp-1405515992.16-30163890915163/ping:
> Couldn't read packet: Connection reset by peer

On peer reset, the chance is high to find some hints in the AIX system logs...

It seems, that "scp" is failing, where ansible tries to copy the ping module over to your AIX. Mostly this is the case, when you have some "ugly" login-scripts, that write something to stdout even in non interactive session (like scp uses). You should check by hand, if scp to AIX works.

Sometimes we have a similar problem, when remote user is root. I couldn't find the cause, but using "-c paramiko" helped.

Thanks, Sascha.

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[Michaël Pailloncy]

Hi,

I've tried an scp from and to the AIX host and it works correctly.

The problem seems to be related to sftp : http://docs.ansible.com/intro_configuration.html#scp-if-ssh

I have set scp_if_ssh=True in ansible.cfg and the ping module works well now.

Thanks for your help !

Michaël