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所在平台: Udemy |
课程主页: https://www.udemy.com/course/everything-cassandra/
课程评论：没有评论
课程名称：Apache Cassandra：你需要知道的一切 课程概述：本培训课程录制于2020年9月至10月，所有内容仍然有效。如果您是一名Oracle数据库管理员，或者对Linux操作系统下的任何关系数据库（RDBMS）有一定了解，那么这是学习Apache Cassandra的理想起点。在本课程中，我们将从Apache Cassandra的介绍开始，讨论垂直扩展和水平扩展，深入探讨NoSQL数据库及其四种类型，了解Apache组织及CAP理论，分析其对Cassandra的重要性，以及Cassandra为何如此受欢迎。 我们将探讨Cassandra中的水平扩展，Murmur3令牌及其在集群中数据分布的机制，数据复制及其在多个数据中心的支持情况，以及Cassandra中不可能实现的事项。此外，我们将讲解Cassandra软件的发布版本与历史、Gossip协议、分区器、Snitches、SSTables、Tombstones和压缩过程。我们还将了解Cassandra数据的内存写入与存储过程，以及如何读取数据并返回给客户端。 课程进一步涵盖DataStax在Cassandra生态中的角色，配置与使用DataStax Dev Center连接Cassandra集群，以及通过Cassandra查询语言（CQL）Shell进行操作。我们将学习Cassandra的数据建模，包括分区键和聚类列、创建和使用keyspace以及表的增删改操作。我们将讨论Cassandra如何使用Tombstone标记已删除的数据，如何新增和移除列，表注释，CQL集合数据类型的使用、元组、自定义数据类型以及计数器的应用。 还将介绍Cassandra对JSON的支持、带时间生存期的设置、轻量级事务（又称为比较与设置选项）、CQL脚本的处理、数据文件与表之间的复制、使用SELECT命令检索表中存储数据的多种场景，这是每位管理员成功使用Cassandra的关键。我们将学习如何使用聚合函数、系统keyspace、二级索引以及可调一致性，了解一致性设置的可选项和CQL批处理。此外，我们还将讨论用户定义的函数、用户定义的聚合，如何保护Cassandra集群的安全，使用nodetool，以及DataStax提供的驱动程序和工具。 最后，我们将讨论学习完本课程后应继续学习的内容。注意：本培训不涵盖安装和配置，因为我为这些主题创建了专门的培训课程。
*** This training course was recorded during September/October 2020. All the content is still valid. ***If you are an Oracle Database Administrator or you have some knowledge of any RDBMS with Linux operating system, then this is a perfect starting point for you to learn Apache Cassandra.In this course, we will start with introduction to Apache Cassandra.We will discuss about Vertical Scaling and Horizontal Scaling.We will discuss about NoSQL databases.We will discuss about 4 types of NoSQL databases.We will discuss about Apache organizationWe will discuss about CAP Theorem and we will try to understand why it is important for Cassandra.We will try to understand why Cassandra is so popular.We will try to understand Horizontal Scaling in Cassandra.We will discuss about Murmur3 tokens and how Cassandra distributes data in the cluster.We will discuss about data replication in Cassandra.We will try to understand how Cassandra can support replication in multiple data centers.We will discuss about what are not possible in Cassandra.We will discuss about Cassandra software release versions and history.We will discuss about gossip, partitioners, snitches, sstables, tombstones and compaction.We will try to understand how Cassandra writes data in memory and stores data in storage.We will try to understand how Cassandra reads data and returns it to the clients.We will discuss about what is the role of DataStax in Cassandra world.We will download and configure DataStax Dev Center to connect to our Cassandra cluster.We will use Cassandra Query Language shell to connect to our Cassandra cluster.We will discuss about data modeling in Cassandra.We will learn about partition keys and clustering columns.We will learn about how to create and use keyspaces.We will learn about how to create and use tables along with insert update and delete data.We will understand how Cassandra marks deleted data with Tombstone markers.We will learn how to alter table to add and remove columns. we will also discuss about table comments.We will learn about CQL Collection data types and how to use them.We will learn about Tuples.We will discuss about User-Defined Types.We will learn about Counters and how to use them.We will discuss about JSON Support in Cassandra.We will learn about data with Time-To-Live settings.We will discuss about Light weight Transactions or also called as compare and set option.We will learn how to handle CQL Scripts.We will learn how to copy data from files to tables and copy data from tables to files.We will discuss a lot of scenarios on how to retrieve data stored in tables using select command. this topic is very Important for any administrator to be successful with Cassandra.We will learn how to use Aggregate Functions.We will discuss about system keyspaces.We will learn about secondary indexes.We will discuss about Tunable Consistency and try to understand the available options for Consistency settings.We will learn about CQL Batches.We will learn about user defined functions and user defined aggregates.We will discuss about different options to secure our Cassandra clusters.We will discuss about nodetool.We will learn about the Drivers & Tools provided by DataStax.We will discuss about what we should learn next after completing this training.NOTE: Installation and Configuration is not covered in this training, since I have created dedicated training courses for those topics.
