# Latest **URL:** https://community.openmainframeproject.org/latest.md [Latest](https://community.openmainframeproject.org/latest.md) · [Categories](https://community.openmainframeproject.org/categories.md) --- ## [Welcome to the Open Mainframe Project Discourse Forum](https://community.openmainframeproject.org/t/welcome-to-the-open-mainframe-project-discourse-forum/8)
**Author:** [@system](https://community.openmainframeproject.org/u/system)\ **Replies:** 17\ **Last updated:** [April 11, 2020, 7:11pm UTC](https://community.openmainframeproject.org/t/welcome-to-the-open-mainframe-project-discourse-forum/8 "2020-04-11T19:11:15Z")
The goal of this forum is to provide a place where mainframe experts can answer questions from developers and users who want to learn more what they can do with the open mainframe and how to get started. The Open Mainfr… --- ## [Mainframe Cobol Consultant](https://community.openmainframeproject.org/t/mainframe-cobol-consultant/7396)
**Author:** [@ferdierares24](https://community.openmainframeproject.org/u/ferdierares24)\ **Replies:** 1\ **Last updated:** [September 7, 2025, 12:58pm UTC](https://community.openmainframeproject.org/t/mainframe-cobol-consultant/7396 "2025-09-07T12:58:47Z")
Name: Ferdinand COBOL Experience: Expert Location: Vancouver, BC, Canada Availability: Full-time Availability Type: Available to Hire Link to LinkedIn profile (or other relevant job experience information): I have 18+ y… --- ## [Is it better to program COBOL using modules, or have everything you need in one code?](https://community.openmainframeproject.org/t/is-it-better-to-program-cobol-using-modules-or-have-everything-you-need-in-one-code/7103)
**Author:** [@DanCOBOLFan](https://community.openmainframeproject.org/u/DanCOBOLFan)\ **Replies:** 9\ **Last updated:** [September 6, 2025, 7:55pm UTC](https://community.openmainframeproject.org/t/is-it-better-to-program-cobol-using-modules-or-have-everything-you-need-in-one-code/7103 "2025-09-06T19:55:57Z")
So I have recently entered what I would consider an “intermediate” level in the language, and I am making my own codes. At the moment I am planning out a program for record I/O (Adding to a record, amending record fields… --- ## [gnuCOBOL & LLM (and some python along the way)](https://community.openmainframeproject.org/t/gnucobol-llm-and-some-python-along-the-way/7833)
**Author:** [@emerson](https://community.openmainframeproject.org/u/emerson)\ **Replies:** 4\ **Last updated:** [August 28, 2025, 11:48am UTC](https://community.openmainframeproject.org/t/gnucobol-llm-and-some-python-along-the-way/7833 "2025-08-28T11:48:06Z")
Hi, I hope this finds you all well. I would like to share the progress of an integration I have been working on for quite some time, and that is finally starting to take shape. The following video demonstrates how to g… --- ## [UX/UI designer for hire](https://community.openmainframeproject.org/t/ux-ui-designer-for-hire/7844)
**Author:** [@reddensoft](https://community.openmainframeproject.org/u/reddensoft)\ **Replies:** 0\ **Last updated:** [August 25, 2025, 11:29am UTC](https://community.openmainframeproject.org/t/ux-ui-designer-for-hire/7844 "2025-08-25T11:29:30Z")
Experienced UI/UX Designer here, making a developer’s life easier. I turn complex ideas into seamless user experiences that boost engagement and conversions. Seeking full-time or part-time roles. --- ## [Integrating COBOL with C++](https://community.openmainframeproject.org/t/integrating-cobol-with-c/6648)
**Author:** [@SimonRydell](https://community.openmainframeproject.org/u/SimonRydell)\ **Replies:** 1\ **Last updated:** [August 19, 2025, 12:59am UTC](https://community.openmainframeproject.org/t/integrating-cobol-with-c/6648 "2025-08-19T00:59:27Z")
Hi everyone! I have built a tool that can be used to export C++ libraries to other languages. I’m wondering if that is something that would be interesting to the COBOL community. The tool could be used to gradually conv… --- ## [Cobol compiler for VSCode](https://community.openmainframeproject.org/t/cobol-compiler-for-vscode/5966)
**Author:** [@Govern](https://community.openmainframeproject.org/u/Govern)\ **Replies:** 2\ **Last updated:** [August 6, 2025, 12:20pm UTC](https://community.openmainframeproject.org/t/cobol-compiler-for-vscode/5966 "2025-08-06T12:20:56Z")
I am a beginner and I’m trying to learn cobol using VSCode, I would like to know if I need to write JCL code for every cobol program I create or the is a compiler I can install to compile my programs? --- ## [How to Contribute: AI-based Mainframe Modernization White Paper (Summer 2025 Linux Mentorship)](https://community.openmainframeproject.org/t/how-to-contribute-ai-based-mainframe-modernization-white-paper-summer-2025-linux-mentorship/7759)
**Author:** [@Aditi](https://community.openmainframeproject.org/u/Aditi)\ **Replies:** 1\ **Last updated:** [June 4, 2025, 9:31am UTC](https://community.openmainframeproject.org/t/how-to-contribute-ai-based-mainframe-modernization-white-paper-summer-2025-linux-mentorship/7759 "2025-06-04T09:31:34Z")
Dear Mentor, I hope this message finds you well. My name is Aditi Mehta, a student at Indira Gandhi Delhi Technical University for Women (IGDTUW), with a strong background in software development, machine learning, and… --- ## [Missing ZWESVSTC in SZWESAMP](https://community.openmainframeproject.org/t/missing-zwesvstc-in-szwesamp/7490)
**Author:** [@dlow](https://community.openmainframeproject.org/u/dlow)\ **Replies:** 0\ **Last updated:** [November 26, 2024, 5:40pm UTC](https://community.openmainframeproject.org/t/missing-zwesvstc-in-szwesamp/7490 "2024-11-26T17:40:51Z")
I have a colleague installing Zowe on a z/OS 3.1 system and the installation doc says we should have member ZWESVSTC in the SZWESAMP library. We can’t find this member. Other members that appear to be missing: ZWEXMSTC … --- ## [How do I update Zowe to a newer version?](https://community.openmainframeproject.org/t/how-do-i-update-zowe-to-a-newer-version/7401)
**Author:** [@jimcrilly](https://community.openmainframeproject.org/u/jimcrilly)\ **Replies:** 1\ **Last updated:** [July 12, 2024, 10:52am UTC](https://community.openmainframeproject.org/t/how-do-i-update-zowe-to-a-newer-version/7401 "2024-07-12T10:52:51Z")
We currently have Zowe installed on our Mainframe and we want to upgrade to a newer version. Is there an upgrade option or do I need to un-install and re-install Zowe to the newer version? If you have a link to this I w… --- ## [I miss programming](https://community.openmainframeproject.org/t/i-miss-programming/668)
**Author:** [@DLuther](https://community.openmainframeproject.org/u/DLuther)\ **Replies:** 0\ **Last updated:** [April 10, 2020, 6:48pm UTC](https://community.openmainframeproject.org/t/i-miss-programming/668 "2020-04-10T18:48:46Z")
Name: Dennis Luther COBOL Experience: (Beginner, Intermediate, Expert)Expert Location: (City, State, Country)Sacramento CA USA Availability: (Part-time, Full-time)Part Time Availability Type: (Volunteer, Available to Hi… --- ## [Looking for Mainframe Access or Support?](https://community.openmainframeproject.org/t/looking-for-mainframe-access-or-support/7764)
**Author:** [@Swaroop](https://community.openmainframeproject.org/u/Swaroop)\ **Replies:** 2\ **Last updated:** [July 18, 2025, 7:33am UTC](https://community.openmainframeproject.org/t/looking-for-mainframe-access-or-support/7764 "2025-07-18T07:33:26Z")
If anyone here is looking for Paid Mainframe Rental Access for development, testing, or training purposes, feel free to reach out! At Maintec Technologies, we offer Mainframe-as-a-Service (MFaaS) with flexible options i… --- ## [IBM COBOL Course](https://community.openmainframeproject.org/t/ibm-cobol-course/7438)
**Author:** [@gpb14916](https://community.openmainframeproject.org/u/gpb14916)\ **Replies:** 0\ **Last updated:** [July 16, 2024, 1:35am UTC](https://community.openmainframeproject.org/t/ibm-cobol-course/7438 "2024-07-16T01:35:45Z")
Can anybody help me find and join the #cobol-programming-course channel? I’m new to Slack and when I enter that string all I get is this: --- ## [Intermediate COBOL Programmer for hire - remote and contract basis](https://community.openmainframeproject.org/t/intermediate-cobol-programmer-for-hire-remote-and-contract-basis/7808)
**Author:** [@winsuseno](https://community.openmainframeproject.org/u/winsuseno)\ **Replies:** 0\ **Last updated:** [July 7, 2025, 7:32am UTC](https://community.openmainframeproject.org/t/intermediate-cobol-programmer-for-hire-remote-and-contract-basis/7808 "2025-07-07T07:32:51Z")
Name: Win Suseno COBOL Experience: Intermediate Location: Singapore and Bali, Indonesia Availability: Part-time and remote Availability Type: Volunteer, Available to Hire Link to LinkedIn profile: https://www.linkedin.c… --- ## [Different chemical space and appropriate validation+good datasets to explore](https://community.openmainframeproject.org/t/different-chemical-space-and-appropriate-validation-good-datasets-to-explore/7806)
**Author:** [@LukaLisica](https://community.openmainframeproject.org/u/LukaLisica)\ **Replies:** 0\ **Last updated:** [July 2, 2025, 2:49pm UTC](https://community.openmainframeproject.org/t/different-chemical-space-and-appropriate-validation-good-datasets-to-explore/7806 "2025-07-02T14:49:01Z")
What is currently considered to be the best approach when we are training our model in one chemical space, that is supposed to evaluate test data that is in different chemical space? Also, are there any recommended analy… --- ## [LMMSTATS error - Unable to update a file in ZOWE if the no of lines in the file is \>= 65535](https://community.openmainframeproject.org/t/lmmstats-error-unable-to-update-a-file-in-zowe-if-the-no-of-lines-in-the-file-is-65535/7804)
**Author:** [@Prathyusha](https://community.openmainframeproject.org/u/Prathyusha)\ **Replies:** 0\ **Last updated:** [July 1, 2025, 9:54am UTC](https://community.openmainframeproject.org/t/lmmstats-error-unable-to-update-a-file-in-zowe-if-the-no-of-lines-in-the-file-is-65535/7804 "2025-07-01T09:54:21Z")
Hi , I’m encountering the following errors when trying to save the file: 1. Failed to save ‘CICSCW10’: Unable to write file ‘zowe-ds:/zosmf/USER.FOLD.IDML.SET1/CICSCW10’ (Error: Rest API failure with HTTP(S) status 500… --- ## [Empower Your IBM Mainframe and IBM i Environments with Maintec Technologies' Dedicated and Shared LPAR Services](https://community.openmainframeproject.org/t/empower-your-ibm-mainframe-and-ibm-i-environments-with-maintec-technologies-dedicated-and-shared-lpar-services/7795)
**Author:** [@Swaroop](https://community.openmainframeproject.org/u/Swaroop)\ **Replies:** 0\ **Last updated:** [June 24, 2025, 1:15pm UTC](https://community.openmainframeproject.org/t/empower-your-ibm-mainframe-and-ibm-i-environments-with-maintec-technologies-dedicated-and-shared-lpar-services/7795 "2025-06-24T13:15:09Z")
In today’s dynamic IT environment, organizations are increasingly seeking ways to maintain agility, control costs, and optimize infrastructure without compromising on security or performance—particularly when managing IB… --- ## [Error when opening a file in COBOL](https://community.openmainframeproject.org/t/error-when-opening-a-file-in-cobol/7481)
**Author:** [@inf1nitecobol](https://community.openmainframeproject.org/u/inf1nitecobol)\ **Replies:** 1\ **Last updated:** [November 15, 2024, 12:22am UTC](https://community.openmainframeproject.org/t/error-when-opening-a-file-in-cobol/7481 "2024-11-15T00:22:25Z")
Hello everyone, I am experiecing an issue in my COBOL application. My application produces an error when opening a file in COBOL. This is the error: There was an unsuccessful OPEN or CLOSE of file EINGABE in program … --- ## [Open Mainframe Project - RAG to Riches - Using Your Legacy Data](https://community.openmainframeproject.org/t/open-mainframe-project-rag-to-riches-using-your-legacy-data/7723)
**Author:** [@jgyasu](https://community.openmainframeproject.org/u/jgyasu)\ **Replies:** 0\ **Last updated:** [April 13, 2025, 5:15pm UTC](https://community.openmainframeproject.org/t/open-mainframe-project-rag-to-riches-using-your-legacy-data/7723 "2025-04-13T17:15:48Z")
Hello everyone, I recently came across this project idea for the LFX mentorship program. I am an engineering undergraduate and I have a background in AI research, I have created RAG pipelines in the past and I have also … --- ## [0C4 with zowe z/OS 3R1](https://community.openmainframeproject.org/t/0c4-with-zowe-z-os-3r1/7365)
**Author:** [@gameplayname](https://community.openmainframeproject.org/u/gameplayname)\ **Replies:** 0\ **Last updated:** [January 2, 2024, 6:04pm UTC](https://community.openmainframeproject.org/t/0c4-with-zowe-z-os-3r1/7365 "2024-01-02T18:04:13Z")
CEE3204S The system detected a protection exception (System Completion Code=0C4). From entry point main at compile unit offset +00003E38 at entry offset +00003E38 at address 2900F228. IDI0001I Fault Analyzer V15R1M03 (… --- ## [VS code unable to get the Data Sets in the connection guide](https://community.openmainframeproject.org/t/vs-code-unable-to-get-the-data-sets-in-the-connection-guide/7465)
**Author:** [@giomaussi](https://community.openmainframeproject.org/u/giomaussi)\ **Replies:** 2\ **Last updated:** [January 10, 2025, 12:04am UTC](https://community.openmainframeproject.org/t/vs-code-unable-to-get-the-data-sets-in-the-connection-guide/7465 "2025-01-10T00:04:15Z")
unable to get the Data Sets in the connection guide https://learn.ibm.com/mod/resource/view.php?id=260630&forceview=1 I use my email an passwod fo the IBM trining site but it doesnt work Any help will be apprec… --- ## [COBOL/Mainframe Opportunites](https://community.openmainframeproject.org/t/cobol-mainframe-opportunites/7714)
**Author:** [@Collabera\_Mainframe](https://community.openmainframeproject.org/u/Collabera_Mainframe)\ **Replies:** 0\ **Last updated:** [April 7, 2025, 6:45pm UTC](https://community.openmainframeproject.org/t/cobol-mainframe-opportunites/7714 "2025-04-07T18:45:37Z")
Hey all, I recently noticed an uptick in demand for COBOL/Mainframe/DB2 expertise. There are many enterprise companies in different industries scrambling to modernize legacy systems. If you or any colleagues are interes… --- ## [DL00015G Learning COBOL Programming with VSCode](https://community.openmainframeproject.org/t/dl00015g-learning-cobol-programming-with-vscode/7616)
**Author:** [@ajdobay](https://community.openmainframeproject.org/u/ajdobay)\ **Replies:** 2\ **Last updated:** [May 15, 2025, 9:42am UTC](https://community.openmainframeproject.org/t/dl00015g-learning-cobol-programming-with-vscode/7616 "2025-05-15T09:42:54Z")
Can’t get into the lab system . Need my team configuration zip file and extract it. I don’t know what to do . This is Lab 2. Connecting to the Mainframe Lab instructions step 3 . Can anyone guide me through this . I’d … --- ## [Performance Issues with Linux on IBM Z (s390x) – Seeking Optimization Tips](https://community.openmainframeproject.org/t/performance-issues-with-linux-on-ibm-z-s390x-seeking-optimization-tips/7643)
**Author:** [@dreektheler](https://community.openmainframeproject.org/u/dreektheler)\ **Replies:** 1\ **Last updated:** [February 25, 2025, 1:08pm UTC](https://community.openmainframeproject.org/t/performance-issues-with-linux-on-ibm-z-s390x-seeking-optimization-tips/7643 "2025-02-25T13:08:27Z")
Hi everyone, I have been running Linux (RHEL 9) on an IBM Z system (s390x architecture) and have noticed some performance bottlenecks…, particularly with I/O operations and memory management. While CPU utilization rema… --- ## [Query on internal array](https://community.openmainframeproject.org/t/query-on-internal-array/7113)
**Author:** [@Tech\_curious](https://community.openmainframeproject.org/u/Tech_curious)\ **Replies:** 1\ **Last updated:** [October 6, 2023, 3:12am UTC](https://community.openmainframeproject.org/t/query-on-internal-array/7113 "2023-10-06T03:12:20Z")
Is there any specific reason why HIGH VALUES are moved while coding a cobol internal array. Reviewing some programs and found only 1 of them coded with high values but not the rest so curious. Any advantages or disadva… --- ## [Expert COBOL Programmer - available part-time](https://community.openmainframeproject.org/t/expert-cobol-programmer-available-part-time/7749)
**Author:** [@nitallica](https://community.openmainframeproject.org/u/nitallica)\ **Replies:** 0\ **Last updated:** [May 3, 2025, 11:35am UTC](https://community.openmainframeproject.org/t/expert-cobol-programmer-available-part-time/7749 "2025-05-03T11:35:19Z")
Name: Ali Bekir Yapıcı COBOL Experience: Expert Location: Turkey Availability: (Part-time) Availability Type: (Volunteer, Available to Hire) Acucobol Development System (Acuconnect,acuxdbc,acuthin,acubench) Version 5,6… --- ## [COBOL/HLASM Volunteer Ready – Modernization & Migration Projects](https://community.openmainframeproject.org/t/cobol-hlasm-volunteer-ready-modernization-migration-projects/7725)
**Author:** [@fmarques](https://community.openmainframeproject.org/u/fmarques)\ **Replies:** 4\ **Last updated:** [April 24, 2025, 10:59am UTC](https://community.openmainframeproject.org/t/cobol-hlasm-volunteer-ready-modernization-migration-projects/7725 "2025-04-24T10:59:38Z")
Name: Fabio Marques COBOL Experience: Beginner/Intermediate Location: Brazil Availability: Part-time Availability Type: Volunteer Link to LinkedIn profile: https://www.linkedin.com/in/fmrqs/ I am currently available fo… --- ## [Connecting Mainframe to VS code](https://community.openmainframeproject.org/t/connecting-mainframe-to-vs-code/7727)
**Author:** [@Raja](https://community.openmainframeproject.org/u/Raja)\ **Replies:** 2\ **Last updated:** [April 18, 2025, 1:57pm UTC](https://community.openmainframeproject.org/t/connecting-mainframe-to-vs-code/7727 "2025-04-18T13:57:48Z")
I am new to working with mainframe through VS code. I have connected mainframe with vscode through zosmf. When I submit the job with vs code , the user id being used is IZUSVR in job log. But if I submit through zosmf … --- ## [COBOL/Mainframe Opportunities](https://community.openmainframeproject.org/t/cobol-mainframe-opportunities/7715)
**Author:** [@Collabera\_Mainframe](https://community.openmainframeproject.org/u/Collabera_Mainframe)\ **Replies:** 1\ **Last updated:** [April 22, 2025, 4:09pm UTC](https://community.openmainframeproject.org/t/cobol-mainframe-opportunities/7715 "2025-04-22T16:09:45Z")
Hey all, I recently noticed an uptick in demand for COBOL/Mainframe/DB2 expertise. There are many enterprise companies in different industries scrambling to modernize legacy systems. If you or any colleagues are interes… --- ## [Slack Invite Error “invite\_limit\_reached”](https://community.openmainframeproject.org/t/slack-invite-error-invite-limit-reached/6034)
**Author:** [@4144h](https://community.openmainframeproject.org/u/4144h)\ **Replies:** 6\ **Last updated:** [April 22, 2025, 11:37am UTC](https://community.openmainframeproject.org/t/slack-invite-error-invite-limit-reached/6034 "2025-04-22T11:37:26Z")
Hi I’m trying to sign up to the slack channel at https://slack.openmainframeproject.org/ however on entering my email address and clicking Get My Invite the button turns red and shows the error text “invite\_limit\_reached… [Next page](https://community.openmainframeproject.org/latest.md?page=1)