Data engineering, AI workflows, and daily notes — first-hand from one engineer.https://www.lzhgy.cn/https://www.lzhgy.cn/en/blog/hive/https://www.lzhgy.cn/en/blog/hive/Hive NotesWed, 26 Oct 2022 19:41:00 GMThttps://www.lzhgy.cn/en/blog/git-xue-xi-bi-ji/https://www.lzhgy.cn/en/blog/git-xue-xi-bi-ji/Git Learning NotesTue, 18 Oct 2022 18:40:00 GMThttps://www.lzhgy.cn/en/blog/hadoop-bi-ji/https://www.lzhgy.cn/en/blog/hadoop-bi-ji/Hadoop NotesMon, 26 Sep 2022 07:00:00 GMThttps://www.lzhgy.cn/en/blog/linux-fu-xi/https://www.lzhgy.cn/en/blog/linux-fu-xi/Linux Review NotesMon, 12 Sep 2022 18:55:00 GMThttps://www.lzhgy.cn/en/blog/ru-he-bian-xie-yi-ge-mr-cheng-xu/https://www.lzhgy.cn/en/blog/ru-he-bian-xie-yi-ge-mr-cheng-xu/How to write a simple MapReduce program.Wed, 03 Aug 2022 19:33:02 GMThttps://www.lzhgy.cn/en/blog/da-shu-ju-chang-yong-ming-ling/https://www.lzhgy.cn/en/blog/da-shu-ju-chang-yong-ming-ling/Some common commands for big dataMon, 22 Nov 2021 17:56:46 GMThttps://www.lzhgy.cn/en/blog/clickhouse-de-shu-ju-lei-xing/https://www.lzhgy.cn/en/blog/clickhouse-de-shu-ju-lei-xing/Here is the translation: A detailed introduction to ClickHouse's data types.Mon, 18 Oct 2021 22:49:40 GMThttps://www.lzhgy.cn/en/blog/cache-aside-pattern-pang-lu-huan-cun-mo-shi/https://www.lzhgy.cn/en/blog/cache-aside-pattern-pang-lu-huan-cun-mo-shi/When updating the cache, after updating the database, should you update the cache or delete it? Or perhaps delete the cache first, then update the database—either way, there are certain issues involved.Tue, 29 Jun 2021 00:03:08 GMThttps://www.lzhgy.cn/en/blog/flink-yi-bu-i-o/https://www.lzhgy.cn/en/blog/flink-yi-bu-i-o/Usage of Async I/O in FlinkWed, 28 Apr 2021 19:08:29 GMThttps://www.lzhgy.cn/en/blog/shen-ru-liao-jie-yarn-cluster-mo-shi/https://www.lzhgy.cn/en/blog/shen-ru-liao-jie-yarn-cluster-mo-shi/The most commonly used deployment modes for SparkSun, 21 Mar 2021 04:51:56 GMThttps://www.lzhgy.cn/en/blog/chang-jian-11-zhong-word-count/https://www.lzhgy.cn/en/blog/chang-jian-11-zhong-word-count/Common wordCount in SparkWed, 02 Dec 2020 02:23:21 GMThttps://www.lzhgy.cn/en/blog/sql-gong-cheng-shi-de-zi-wo-xiu-yang/https://www.lzhgy.cn/en/blog/sql-gong-cheng-shi-de-zi-wo-xiu-yang/Since I personally prefer using window functions, I prioritized them in my solutions. Of course, these may not always be the optimal approaches—the answers are for reference only.Tue, 28 Jul 2020 19:32:00 GMThttps://www.lzhgy.cn/en/blog/hadoop-di-yi-jie-duan-zong-jie/https://www.lzhgy.cn/en/blog/hadoop-di-yi-jie-duan-zong-jie/Phase One Summary of HadoopThu, 16 Apr 2020 03:55:19 GMThttps://www.lzhgy.cn/en/blog/yarn-gong-zuo-ji-zhi-he-diao-du/https://www.lzhgy.cn/en/blog/yarn-gong-zuo-ji-zhi-he-diao-du/Some insights into Yarn's working mechanism and scheduling.Sun, 29 Mar 2020 21:21:26 GMThttps://www.lzhgy.cn/en/blog/xiao-wen-jian-wei-hai-ji-chu-li/https://www.lzhgy.cn/en/blog/xiao-wen-jian-wei-hai-ji-chu-li/Some insights on handling small filesMon, 23 Mar 2020 20:54:00 GMThttps://www.lzhgy.cn/en/blog/linux-xue-xi-bi-ji/https://www.lzhgy.cn/en/blog/linux-xue-xi-bi-ji/Some study notes from when I was learning Linux.Thu, 12 Mar 2020 05:23:06 GMThttps://www.lzhgy.cn/en/blog/mysql-ji-chu/https://www.lzhgy.cn/en/blog/mysql-ji-chu/Study NotesSat, 07 Mar 2020 21:36:05 GMThttps://www.lzhgy.cn/en/blog/java-ji-chu-yu-fa/https://www.lzhgy.cn/en/blog/java-ji-chu-yu-fa/This blog contains some simple exercises on Java basic syntax, continuously updated.Mon, 24 Feb 2020 22:22:25 GMThttps://www.lzhgy.cn/en/blog/she-ji-mo-shi-xue-xi/https://www.lzhgy.cn/en/blog/she-ji-mo-shi-xue-xi/Some study notes and insights on learning design patterns.Sun, 26 Jan 2020 07:17:09 GMThttps://www.lzhgy.cn/en/blog/lan-qiao-bei-quan-guo-ruan-jian-da-sai-ru-he/https://www.lzhgy.cn/en/blog/lan-qiao-bei-quan-guo-ruan-jian-da-sai-ru-he/I think it's quite good, at least it provides a great platform for students from many ordinary colleges and universities. When it comes to programming competitions, everyone first thinks of ACM, but is ACM really suitable for everyone?Sun, 24 Nov 2019 05:48:44 GMThttps://www.lzhgy.cn/en/blog/hua-mu-lan-ju-hang-shou-ying-li-kou-bei-jie-jin-hai-wai-ying-ping-ren-dou-zen/https://www.lzhgy.cn/en/blog/hua-mu-lan-ju-hang-shou-ying-li-kou-bei-jie-jin-hai-wai-ying-ping-ren-dou-zen/She is a highlight of the film... her energy fully shines on screen, and watching her perform is truly enjoyable. (Kaitlyn Booth, Bleeding Cool)Thu, 24 Oct 2019 05:38:14 GMThttps://www.lzhgy.cn/en/blog/java-ru-men-dao-fang-qi/https://www.lzhgy.cn/en/blog/java-ru-men-dao-fang-qi/Sun's goal in designing the Java language was to enable Java programs to run on a wide variety of computers (including PCs and workstations) without modification.Tue, 01 Jan 2019 05:58:32 GMThttps://www.lzhgy.cn/en/blog/maven-xue-xi-bi-ji/https://www.lzhgy.cn/en/blog/maven-xue-xi-bi-ji/Some learning insights on Maven.Sat, 11 Aug 2018 16:52:53 GMT