You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ve ...
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其他好文 时间:
2020-07-08 09:14:32
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54
oracle之报错:ORA-00054: 资源正忙,要求指定 NOWAIT 问题如下: SQL> conn scott/tiger@vm_database Connected to Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 C ...
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数据库 时间:
2020-07-07 00:42:27
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103
This guide walks you through the process of creating a Spring application connected to a MySQL Database (as opposed to an in-memory, embedded database ...
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数据库 时间:
2020-07-04 01:46:34
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78
Connected to an idle instance:连接到空闲实例 原因:数据库或者监听没启动 ...
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其他好文 时间:
2020-07-03 12:33:11
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46
Zookeeper集群搭建 安装环境: 系统:centos7.6 Java环境:JDK8 关闭这三台机器的防火墙,sellinux 主机188、189、190分别已经部署了单机的zk。单机安装请看我上一篇博客。 https://www.cnblogs.com/hsyw/p/13204017.html ...
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其他好文 时间:
2020-06-29 16:56:06
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89
In this problem, a tree is an undirected graph that is connected and has no cycles. The given input is a graph that started as a tree with N nodes (wi ...
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其他好文 时间:
2020-06-27 09:35:14
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75
The Unique MST Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 30194 Accepted: 10809 Description Given a connected undirected graph, tell i ...
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其他好文 时间:
2020-06-24 21:33:23
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/bin/目录下下 sh zkCli.sh 进入客户端目录下: 查看根目录 [zk: localhost:2181(CONNECTED) 11] ls /[cluster, controller, brokers, zookeeper, admin, isr_change_notification, ...
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其他好文 时间:
2020-06-24 00:40:09
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206
出现问题: impdp 导入时报错sql: impdp xxx/xxx@127.0.0.170/orcl directory=DPDATA dumpfile=20200623data.DMP full=y ; Connected to: Oracle Database 12c Enterprise ...
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数据库 时间:
2020-06-23 15:31:17
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75
##1. 哨兵的作用 (1)监控主库状态 (2)自动选主,切换(6381 slaveof no one) (3)2号从库(6382)指向新主库(6381) (4)应用透明(切换过程用户无法感知,不影响体验) (5)自动处理故障节点(自愈) ##2. 哨兵搭建过程 mkdir /data/26380 ...
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其他好文 时间:
2020-06-17 20:25:18
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61