Hello Inedo, the community, everyone,

One of our scripts is running into an issue in buildmaster.
This script is involved in a deployment pipeline that has been used with success for a long time.

Basically, it consists in an Otterscript dealing with a build variable by sending it as an argument to a subsequent Shell script invoked with SHCall.

When this argument exceeds 34632 characters, or when multiple passed arguments exceed together 34632 characters, the execution fails with :

Unable to send channel request
Unhandled exception: Inedo.Agents.Ssh.SshException: Unable to send channel request
   at Inedo.Agents.Ssh.Libssh2.Libssh2Session.HandleError(Int32 res, IntPtr sftp)
   at Inedo.Agents.Ssh.Libssh2.Libssh2Session.WithSocketAsync[T](Func`1 run, Func`2 getError, IntPtr sftp, CancellationToken cancellationToken)
   at Inedo.Agents.Ssh.SshProcess.StartInternalAsync(CancellationToken cancellationToken)
   at Inedo.Agents.Ssh.SshProcess.StartInternalAsync(CancellationToken cancellationToken)
   at Inedo.Extensions.Scripting.Operations.Shell.SHUtil.ExecuteShellScriptAsync(IShellOperation operation, ShellStartInfo startInfo, IOperationExecutionContext context) in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E573257\Src\Scripting\InedoExtension\Operations\Shell\SHUtil.cs:line 264
   at Inedo.Extensions.Scripting.Operations.Shell.SHUtil.ExecuteShellScriptAhAsync[TOperation](TOperation operation, IOperationExecutionContext context, String execMode) in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E573257\Src\Scripting\InedoExtension\Operations\Shell\SHUtil.cs:line 389
   at Inedo.Extensions.Scripting.Operations.Shell.SHCallOperation.ExecuteAsync(IOperationExecutionContext context) in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E573257\Src\Scripting\InedoExtension\Operations\Shell\SHCallOperation.cs:line 81
   at Inedo.BuildMaster.Windows.ServiceApplication.Executions.PlanExecuter.OtterScriptExecuter.Inedo.ExecutionEngine.Executer.IExecutionHostEnvironment.ExecuteActionAsync(ActionStatement actionStatement, IExecuterContext context) in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E574178\Src\BuildMasterSolution\BuildMaster.Service\Executions\PlanExecuter\OtterScriptExecuter.cs:line 350

The pipeline looks like :

{
  "Name": "pipeline",
  "Stages": [
    {
      "Name": "test",
      "Targets": [
        {
          "ScriptId": "global::OtterScript",
          "EnvironmentName": "test",
          "ServerNames": [
            "server"
          ],
  [...]

The server which the Shell script is submitted on is Linux like and the used credentials are SSHKeyPair.
I suspect that some SSH agent is implemented by Buildmaster.

The Otterscript looks like :

##AH:UseTextMode

set $arg="<more than 34632 characters>";
# Test Otterscript
{   
        {
        # # SHcall
            {
                SHCall Test_SSH
                (
                Arguments: $arg,

Our instance runs Buildmaster 7.0.23 but I am able to reproduce the issue in Buildmaster 2024.8

Could you please help ?

Thank you.

Thank you for the clarification @dean-houston

Hello team!

From Buildmaster Version 7.0.23, I noticed the entries of access logs associated with api keys usage are limited to 1001 rows in the database.
Are there any settings to customize this limit or do you have any suggestion to increase this ?

Thank you.