GitHub user arunkumarArunachalam1 created a discussion: Gui Freezes “Get fields” freezes Hop GUI on Linux (Ubuntu)
Hi everyone I’m facing a recurring GUI issue with Apache Hop 2.16.0 on Ubuntu Linux and wanted to check if others have seen the same behavior Environment OS: Ubuntu 24.04.3 LTS (Noble) CPU: Intel® Core™ i5-8350U @ 1.70 GHz RAM: 15 GB (swap enabled: 15 GB) Java: OpenJDK 17 Apache Hop: 2.16.0 **What happens** When I click “Get fields” in the Microsoft Excel Writer transform, the Hop GUI often becomes unresponsive and the OS shows a Wait / Force Quit dialog. In some cases, the process is killed. This mostly happens when the pipeline has multiple upstream transforms. Simple pipelines like Table Input → Excel Writer usually work fine. this is my Pipeline <img width="1724" height="270" alt="image" src="https://github.com/user-attachments/assets/fc237411-75a4-475a-b0cb-5ea3a1953bda"; /> Console warnings I consistently see GTK/SWT warnings like: Gtk-WARNING: Negative content width -1 (GtkScrolledWindow) Gtk-CRITICAL: gtk_box_gadget_distribute: assertion 'size >= 0' failed Killed Question Has anyone found a stable way to use “Get fields” in the Microsoft Excel Writer on Linux without the Hop GUI freezing? Specifically: - Are there any recommended JVM, SWT, or GTK settings to avoid this issue? - - Is this a known SWT/GTK limitation when rendering metadata-heavy transforms? - - Are there any best practices or official recommendations for handling Excel Writer metadata on Linux? - - Is there any plan or workaround in newer Hop versions to improve GUI stability for this case? - - Any guidance, confirmations, or alternative approaches would be greatly appreciated. Thanks! GitHub link: https://github.com/apache/hop/discussions/6232 ---- This is an automatically sent email for [email protected]. To unsubscribe, please send an email to: [email protected]
