Zowe CLI looping in node.js task when interrupted.

[oakmount66]

When a Zowe command is interrupted from a VScode extension, the related node.js task is not killed but starting to loop and using up t0 20% cpu.

In our local VScode extention we use Javascript function execSync with time out to issue Zowe CLI commands like:

const options = {
timeout: 20000
};
let command = 'zowe zos-tso send address-space asName --data "exec 'HIQ.MEQ.LOWQ(REXXPRG)' 'PARM1,PARM2,PARM3' exec" --reject-unauthorized false --response-format-json'
let response = execSync(command, options).toString().trim();

If the command isn't returning any response within 20 seconds or if VScode is closed while the command is awaiting, then a node.js task is left running on the local machine and after a short while the cpu consumption is raising to 15-20% per node.js task.

Details about the behavior:

1. Command issued: zowe zso-tso send address-space
2. Expected results: that the task is killed
3. Actual results: node task/Zowe looping
4. Applicable log files: ?

My environment

• Zowe CLI version 7.16.4
• VScode version 1.80.0
• Node.js version 20.4.0
• Npm version 9.7.2
• Windows version 11
• Daemon mode disabled:

[github-actions]

Thank you for creating a bug report.
We will investigate the bug and evaluate its impact on the product.
If you haven't already, please ensure you have provided steps to reproduce the bug and as much context as possible.

[awharn]

Thank you for the bug report. We have looked into this issue and found that there is currently a bug in the CLI that occurs when the execSync call times out and STDIN, STDOUT, and/or STDERR are removed from the process while the process is still running, which appears to be causing the continued high CPU and memory use that you describe.

In the meantime, we do offer Node SDKs that can be used in VSCode extensions, and do suggest they be used for your apparent use-case of a VSCode extension. This will allow people who do not have Zowe CLI installed to use your extension. Our API documentation is available here: https://docs.zowe.org/stable/typedoc/modules/_zowe_zos_tso_for_zowe_sdk.html