topic Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read in Talend Studio

SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

GOng1689739437 — Fri, 15 Nov 2024 21:33:58 GMT

Hi,

Our job that uses a "tFTPPut" job recently started failing this morning. There hasn't been any change on our side and most definitely a change on the SFTP server side. I tried using only "tFTPConnection" but it's also failing. We're using "password" authentication method with username/password.

Error below:

The vendor told us that their private key had been updated and told us to "trust the new key", however we don't get this option in Talend and I can't find a way to reset the trust store for this.

I can connect to the SFTP server using WinSCP and I received a pop up to trust the new key prior to connecting successfully in WinSCP.

We're using Talend Open Studio for Big Data (version 8.0.1).

Please help!

P.S, I did find a previous post here: https://community.talend.com/s/question/0D53p00007vClS0CAK/tftpconnection-omjcraftjschjschexception-sessionconnect-javaio?language=en_US

but no one has answered successfully.

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

Anonymous — Wed, 19 Jul 2023 07:54:40 GMT

Hello @Geoffrey Ong ,

Could you please give a snapshot of the connection settings using WinSCP as well as the connection settings for tFTPConnection component in the job?

Best regards

Aiming

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

GOng1689739437 — Wed, 19 Jul 2023 23:17:42 GMT

In WinSCP (default settings, just username password on SFTP using port 22):

Server and protocol info in WinSCP (Not sure if SFTP-6 is supported in Talend):

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

Anonymous — Thu, 20 Jul 2023 02:03:52 GMT

Hello @Geoffrey Ong ,

Someone met the issue before , see https://stackoverflow.com/questions/37280442/jsch-0-1-53-session-connect-throws-end-of-io-stream-read

The possible solution is to upgrade the jsch jar version to the latest 0.1.55 version

Please try to :

download the latest 0.1.55 version of jsch jar from https://mvnrepository.com/artifact/com.jcraft/jsch/0.1.55
In talend Studio Modules view, edit the jsch-0.2.1.jar module to provide the custom Maven URI with the downloaded 0.1.55 jar

see https://help.talend.com/r/en-US/8.0/studio-user-guide/customizing-maven-uri-for-external-module-deployment3 Re-try the job

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

GOng1689739437 — Thu, 20 Jul 2023 02:58:18 GMT

It's already using 0.1.55 jar. See below:

Even if I download it again and try to change it, it won't let me.

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

Anonymous — Fri, 21 Jul 2023 03:47:41 GMT

Seems it's not the jsch jar version issue as yours is already 0.1.55.

To debug the job log, you can check the log4jLevel = 'Debug' in the job's Run Advanced settings

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

GOng1689739437 — Sun, 23 Jul 2023 23:34:27 GMT

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

sredddy1595601271 — Fri, 03 Jan 2025 16:45:56 GMT

Hello,

Have you find any solution for this issue m facing same issue. Please kindly reply on this if you find any solution

Re: SFTP connection error - Session.connect: java.io.IOException: End of IO Stream Read

URWITEU — Mon, 07 Jul 2025 07:10:30 GMT

Hello,

I have the same issue too. So I added the 1.55 jar in a tLibraryLoad to check and it works. But not in the TMC and I don't want to change the jar in "module" because it will impact all tLibraryLoad in my project. And it is a big downgrade (2.1 to 1.55)

What should I do ?

Regards.