Apache HBase is a high-performance, open-source, distributed NoSQL database designed specifically for the Hadoop ecosystem, especially suitable for scenarios that require fast random read and write access to large datasets. This article will introduce the basics of HBase and use business scenarios of Users, Jobs, and their Subtasks to illustrate related concepts.
Ubuntu 22.04 desktop version comes pre-installed with Snap. However, I find it inconvenient to use and the Snap directory in the Home folder is quite distracting. So, I tried uninstalling it but encountered several issues.
The MySQL binary log contains “events” that describe database changes such as table creation operations or changes to table data. It is the oplog of mysql, and we can subscribe the log to follow all the actions.
We meet an error log on nginx: worker_connections are not enough, reusing connections. To resolve this issue, here is my working solution according to the references:
This is a python version to translate W. Randolph Franklin's work. And recorded for further usage.
Here are some scripts to initialize your python environment to mirror your repo.
When you need to remove a submodule from your Git repository, the most straightforward and recommended approach is to use the git rm command followed by a commit and push to the remote repository.
Ubuntu 自 18.04 开始使用 timesyncd 作为默认的 ntp client。当然如果有必要也可以安装较多包来部署一个自己的 ntp server。
本文只介绍如何配置 timesyncd。
After a recent macOS upgrade, some ssh access was strangely blocked. I turned on verbose logs to check the problem.
Usually we use data[44:] to eliminate the header information of wav files, and then assume the rest data is PCM. This may not always be true. For the wav header of a PCMWAVEFORMAT, we can usually understand that a structure Read more…
After my CentOS 7 upgrade, I rebooted it. It gets stuck and shows a prompt like this:
grub >
It is an annoying start.