Login With Public Key timeouts when opening more that 3 different connections

Hi,

• robotframework 6.0.1
• python 3.11
• robotframework-sshlibrary 3.8.0
• linux

I am trying to setup my test suite to test 16 similar devices using SSH. But I get an error when trying to open the 4 connection: TimeoutError: timed out

Here is the an example of my code.

*** Settings ***
Documentation       Demo

Library             SSHLibrary
Suite Setup         Open All Connections    ${devices}
Suite Teardown      Close All Connections


*** Keywords ***
Open Connection And Log In
    [Arguments]    ${HOST}    ${ALIAS}
    Open Connection    ${HOST}    alias=${ALIAS}
    Login With Public Key    ${USERNAME}    ${ssh_keyfile}

Open All Connections
    [Arguments]    ${TESTS}
    FOR    ${test}    IN    @{TESTS}
        Open Connection And Log In    ${test}[host]    ${test}[id]
    END

Detailed error for the robotframework log:

# ERROR
SSHLibrary . Login With Public Key ${USERNAME}, ${ssh_keyfile}
Documentation:	
Logs into the SSH server using key-based authentication.

Start / End / Elapsed:	20221124 16:06:51.363 / 20221124 16:06:54.372 / 00:00:03.009
16:06:51.363	INFO	Logging into '192.168.2.205:22' as 'test'.	
16:06:54.367	FAIL	TimeoutError: timed out

• I tried to change the order of the devices but it's still timeouts.
• I tried changing the default timeout Set Default Configuration timeout=5 minutes but it hangs also and it just takes longer to timeout. it's always the connection number 4 that fails.

I changed the code to open and close every connection directly in the test case:

Verify Demo
    FOR    ${test}    IN    @{TEST}
        Open Connection And Log In    ${test}[host]    ${test}[id]
        Verify Demo
        Close Connection
    END

Still fails at the 4 connection.

However there is no issue if I try to open 6 times the same IP.

Thanks for your help.

I solved the issue by downgrading to python 3.8

Great

regards,. Rade

On Thu, Nov 24, 2022, 18:28 Hugo SERRAT @.***> wrote:

I solved the issue by downgrading to python 3.8

— Reply to this email directly, view it on GitHub https://github.com/robotframework/SSHLibrary/issues/422#issuecomment-1326716334, or unsubscribe https://github.com/notifications/unsubscribe-auth/AGIYDEUI2NZMIB47GPCNAA3WJ6QSDANCNFSM6AAAAAASKTIUG4 . You are receiving this because you are subscribed to this thread.Message ID: @.***>

Hi @Austriker , i tried to reproduce the problem, but in my configuration it works. I could open >4 simultaneous connection to different hosts.

Environment: robotframework 6.0.1 robotframework-sshlibrary 3.8.0 paramiko 3.2.0 python 3.11.3 Linux: sles12.5 Which python 3.11.x version did you use?

regards arne