With older version of Windows 10 ISO (April 2018 or before) the step is simple: format the USB in FAT32, mount the ISO and copy all files to USB in File Explorer. However in newer version, install.wim file is larger than 4GB and you have to use NTFS / exFAT…

Basic concepts Kafka is yet another project that implements the old school topic based publish subscribe system, but in a fashionable way. It provides high availability, high performance, consumer groups, different levels of consistency and various modes of acknowledgment etc., which is essential features but missing in other popular systems. Producers, consumers, topics Producer can…

Maven is a build automation tool used primarily for Java projects. Maven addresses two aspects of building software: first, it describes how software is built, and second, it describes its dependencies. Maven life cycle validate — ??? compile — just compile source code to class file test — run unit tests package — package classes into…

Recommendations and additions to this cheat sheet are welcome. This cheat sheet is mostly suitable for most common programming languages, but the target usage is C/C++ on x86 platform. Bitmap i is unsigned 32 bit integers. For 64 bit operands, the suffix L should be added to integer literals, e.g…

Install rpmbuild yum install rpm-build Download the tarball from official website. bz2 format is needed for building RPM from tarball as the bundled spec file uses bz2 file format. We can build the RPM directly from the tarball, but we need to change the httpd.spec file, so extract the tarball…

Occasionally your projects’ Maven import may be broken. First we find out problematic dependencies first. The downloaded content is occasionally broken, delete them in local repositories. Here we assume the broken dependency is com.zensis.zensis-utils Windows rd /s /q "%HOMEPATH%\.m2\repository\com\zensis\zensis-utils" Unix rm -rf ~/.m2/repository/com/zensis/zensis-utils Then we also need to clear the failure cache. Change directory to the project folder that you cannot build, use Maven to clean and package with force update.