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Centos8安装mariaDB
[root@NMS src]# yum search mariadb Last metadata expiration check: 0:46:24 ago on Fri 02 Jul 2021 08:18:32 PM CST. Name Exactly Matched: mariadb maria ...
分类:数据库   时间:2021-07-05 16:58:36    阅读次数:0
[LeetCode] 642. Design Search Autocomplete System_Hard tag: Trie
Design a search autocomplete system for a search engine. Users may input a sentence (at least one word and end with a special character '#'). You are ...
分类:其他好文   时间:2021-06-30 18:12:21    阅读次数:0
Flink可靠性的基石-checkpoint机制详细解析
Flink可靠性的基石-checkpoint机制详细解析 Checkpoint介绍 checkpoint机制是Flink可靠性的基石,可以保证Flink集群在某个算子因为某些原因(如 异常退出)出现故障时,能够将整个应用流图的状态恢复到故障之前的某一状态,保 证应用流图状态的一致性。Flink的ch ...
分类:其他好文   时间:2021-06-02 14:37:17    阅读次数:0
Kafka
Kafka Exactly Once语义 精准一次: 将服务器的ACK级别设置为-1,可以保证Producer到Server之间不会丢失数据,即At Least Once语义。相对的,将服务器ACK级别设置为0,可以保证生产者每条消息只会被发送一次,即At Most Once语义。 At Least ...
分类:其他好文   时间:2021-06-02 12:21:04    阅读次数:0
树3 Tree Traversals Again 代码
03-树3 Tree Traversals Again (25 分) An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that ...
分类:其他好文   时间:2021-04-27 14:18:22    阅读次数:0
大数据框架exactly-once底层实现原理,看这篇文章就够了
一、大数据框架三种语义???? 在分布式系统中,如kafka、spark、flink等构成系统的任何节点都是被定义为可以彼此独立失败的。比如在 Kafka 中,broker 可能会 crash,在 producer 推送数据至 topic 的过程中也可能会遇到网络问题。根据 producer 处理此 ...
分类:其他好文   时间:2021-04-09 13:27:18    阅读次数:0
PAT 2020年秋季 7-2 How Many Ways to Buy a Piece of Land (25 分)
The land is for sale in CyberCity, and is divided into several pieces. Here it is assumed that each piece of land has exactly two neighboring pieces, ...
分类:其他好文   时间:2021-03-11 19:32:24    阅读次数:0
LeetCode - Unique Binary Search Trees
Given an integer n, return the number of structurally unique BST's (binary search trees) which has exactly n nodes of unique values from 1 to n. Examp ...
分类:其他好文   时间:2021-02-20 12:13:36    阅读次数:0
228. Summary Ranges - Easy
You are given a sorted unique integer array nums. Return the smallest sorted list of ranges that cover all the numbers in the array exactly. That is, ...
分类:其他好文   时间:2020-10-30 11:55:20    阅读次数:20
SAP UI5应用如果遇到数据绑定问题时,应该如何自己定位问题?
I will use the field “ClosingDate” to demonstrate my favorite approach to trouble shoot field binding issue. Generally speaking, the issue could be su ...
分类:其他好文   时间:2020-09-17 17:07:23    阅读次数:32
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