This article uses Ambari's kafka to configure kafka manager.
CDH and open source can follow the same steps.
kafka is the to enable kerberos authentication.
Kafka manager function
First, let's take a look at the role of Kafka Manager:
Manage multiple clusters
Easily check cluster status (subject, consumer, offset, ag ...
Posted by jdbfitz on Mon, 28 Mar 2022 09:49:32 +0300
Java master Sutra: Java Web core framework (application framework volume)
Author: edited by Liu zhongbing Java Research Laboratory
This book first analyzes the hierarchical design method of Java Web application, selects the application framework, and then explains various Java Web application framewo ...
Posted by DoddsAntS on Sun, 27 Mar 2022 21:14:43 +0300
This tutorial is just a tour of the basic methods used by Maplotlib
In the next chapter, we'll take an advanced tutorial
1. Why use plt. Gcf(). Set_ PLT after facecolor (np.ones(3)* 240/255). Figure will fail. 2.
Matplotlib. Introduction to pyplot
Matplotlib is Python's drawing library. It works with NumPy, providing an ef ...
Posted by Muppet9010 on Sun, 27 Mar 2022 20:15:51 +0300
Introduction to Hive Engine
Hive engines include: default MR, tez, spark
The bottom engine is MR (Mapreduce), which doesn't need to be configured. Hive runs with it
Hive on Tez configuration: https://blog.csdn.net/weixin_45417821/article/details/115181000
Hive on Spark: Hive is responsible for both storing metadata and parsing and optim ...
Posted by r4ck4 on Sun, 27 Mar 2022 20:02:20 +0300
What is data skew
Data skew is very common in the MapReduce programming model. It is that a large number of the same key s are assigned to a partition, resulting in very slow running of individual tasks, which affects the execution efficiency of the whole task.
The root cause of data skew is that the amount of data processed by a few workers ...
Posted by dazzclub on Sun, 27 Mar 2022 11:33:48 +0300