安装ORACLE高可用RAC集群11g校验集群安装的可行性输出信息
安装ORACLE高可用RAC集群11g校验集群安装的可行性输出信息
作者：Eric 微信：loveoracle11g [grid@node1 grid]$ ./runcluvfy.sh stage -pre crsinst -fixup -n node1,node2 -verbose Performing pre-checks for cluster services setup Checking node reachability... Check: Node reachability from node "node1" Destination Node Reachable? ------------------------------------ ------------------------ node1 yes node2 yes Result: Node reachability check passed from node "node1" Checking user equivalence... Check: User equivalence for user "grid" Node Name Status ------------------------------------ ------------------------ node2 passed node1 passed Result: User equivalence check passed for user "grid" Checking node connectivity... Checking hosts config file... Node Name Status ------------------------------------ ------------------------ node2 passed node1 passed Verification of the hosts config file successful Interface information for node "node2" Name IP Address Subnet Gateway Def. Gateway HW Address MTU ------ --------------- --------------- --------------- --------------- ----------------- ------ eth0 192.168.10.20 192.168.10.0 0.0.0.0 192.168.10.1 00:0C:29:95:FF:9D 1500 eth1 192.168.200.20 192.168.200.0 0.0.0.0 192.168.10.1 00:0C:29:95:FF:A7 1500 Interface information for node "node1" Name IP Address Subnet Gateway Def. Gateway HW Address MTU ------ --------------- --------------- --------------- --------------- ----------------- ------ eth0 192.168.10.10 192.168.10.0 0.0.0.0 192.168.10.1 00:0C:29:E0:B5:05 1500 eth1 192.168.200.10 192.168.200.0 0.0.0.0 192.168.10.1 00:0C:29:E0:B5:0F 1500 Check: Node connectivity of subnet "192.168.10.0" Source Destination Connected? ------------------------------ ------------------------------ ---------------- node2[192.168.10.20] node1[192.168.10.10] yes Result: Node connectivity passed for subnet "192.168.10.0" with node(s) node2,node1 Check: TCP connectivity of subnet "192.168.10.0" Source Destination Connected? ------------------------------ ------------------------------ ---------------- node1:192.168.10.10 node2:192.168.10.20 passed Result: TCP connectivity check passed for subnet "192.168.10.0" Check: Node connectivity of subnet "192.168.200.0" Source Destination Connected? ------------------------------ ------------------------------ ---------------- node2[192.168.200.20] node1[192.168.200.10] yes Result: Node connectivity passed for subnet "192.168.200.0" with node(s) node2,node1 Check: TCP connectivity of subnet "192.168.200.0" Source Destination Connected? ------------------------------ ------------------------------ ---------------- node1:192.168.200.10 node2:192.168.200.20 passed Result: TCP connectivity check passed for subnet "192.168.200.0" Interfaces found on subnet "192.168.10.0" that are likely candidates for VIP are: node2 eth0:192.168.10.20 node1 eth0:192.168.10.10 Interfaces found on subnet "192.168.200.0" that are likely candidates for a private interconnect are: node2 eth1:192.168.200.20 node1 eth1:192.168.200.10 Checking subnet mask consistency... Subnet mask consistency check passed for subnet "192.168.10.0". Subnet mask consistency check passed for subnet "192.168.200.0". Subnet mask consistency check passed. Result: Node connectivity check passed Checking multicast communication... Checking subnet "192.168.10.0" for multicast communication with multicast group "230.0.1.0"... Check of subnet "192.168.10.0" for multicast communication with multicast group "230.0.1.0" passed. Checking subnet "192.168.200.0" for multicast communication with multicast group "230.0.1.0"... Check of subnet "192.168.200.0" for multicast communication with multicast group "230.0.1.0" passed. Check of multicast communication passed. Checking ASMLib configuration. Node Name Status ------------------------------------ ------------------------ node2 passed node1 passed Result: Check for ASMLib configuration passed. Check: Total memory Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 1.9613GB (2056560.0KB) 1.5GB (1572864.0KB) passed node1 1.9613GB (2056560.0KB) 1.5GB (1572864.0KB) passed Result: Total memory check passed Check: Available memory Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 1.677GB (1758412.0KB) 50MB (51200.0KB) passed node1 1.6378GB (1717384.0KB) 50MB (51200.0KB) passed Result: Available memory check passed Check: Swap space Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 3.9987GB (4192924.0KB) 2.9419GB (3084840.0KB) passed node1 3.9987GB (4192924.0KB) 2.9419GB (3084840.0KB) passed Result: Swap space check passed Check: Free disk space for "node2:/tmp" Path Node Name Mount point Available Required Status ---------------- ------------ ------------ ------------ ------------ ------------ /tmp node2 /tmp 3.7764GB 1GB passed Result: Free disk space check passed for "node2:/tmp" Check: Free disk space for "node1:/tmp" Path Node Name Mount point Available Required Status ---------------- ------------ ------------ ------------ ------------ ------------ /tmp node1 /tmp 3.7556GB 1GB passed Result: Free disk space check passed for "node1:/tmp" Check: User existence for "grid" Node Name Status Comment ------------ ------------------------ ------------------------ node2 passed exists(1100) node1 passed exists(1100) Checking for multiple users with UID value 1100 Result: Check for multiple users with UID value 1100 passed Result: User existence check passed for "grid" Check: Group existence for "oinstall" Node Name Status Comment ------------ ------------------------ ------------------------ node2 passed exists node1 passed exists Result: Group existence check passed for "oinstall" Check: Group existence for "dba" Node Name Status Comment ------------ ------------------------ ------------------------ node2 passed exists node1 passed exists Result: Group existence check passed for "dba" Check: Membership of user "grid" in group "oinstall" [as Primary] Node Name User Exists Group Exists User in Group Primary Status ---------------- ------------ ------------ ------------ ------------ ------------ node2 yes yes yes yes passed node1 yes yes yes yes passed Result: Membership check for user "grid" in group "oinstall" [as Primary] passed Check: Membership of user "grid" in group "dba" Node Name User Exists Group Exists User in Group Status ---------------- ------------ ------------ ------------ ---------------- node2 yes yes no failed node1 yes yes no failed Result: Membership check for user "grid" in group "dba" failed Check: Run level Node Name run level Required Status ------------ ------------------------ ------------------------ ---------- node2 5 3,5 passed node1 5 3,5 passed Result: Run level check passed Check: Hard limits for "maximum open file descriptors" Node Name Type Available Required Status ---------------- ------------ ------------ ------------ ---------------- node2 hard 65536 65536 passed node1 hard 65536 65536 passed Result: Hard limits check passed for "maximum open file descriptors" Check: Soft limits for "maximum open file descriptors" Node Name Type Available Required Status ---------------- ------------ ------------ ------------ ---------------- node2 soft 1024 1024 passed node1 soft 1024 1024 passed Result: Soft limits check passed for "maximum open file descriptors" Check: Hard limits for "maximum user processes" Node Name Type Available Required Status ---------------- ------------ ------------ ------------ ---------------- node2 hard 16384 16384 passed node1 hard 16384 16384 passed Result: Hard limits check passed for "maximum user processes" Check: Soft limits for "maximum user processes" Node Name Type Available Required Status ---------------- ------------ ------------ ------------ ---------------- node2 soft 2047 2047 passed node1 soft 2047 2047 passed Result: Soft limits check passed for "maximum user processes" Check: System architecture Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 x86_64 x86_64 passed node1 x86_64 x86_64 passed Result: System architecture check passed Check: Kernel version Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 2.6.18-308.el5 2.6.18 passed node1 2.6.18-308.el5 2.6.18 passed Result: Kernel version check passed Check: Kernel parameter for "semmsl" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 250 250 250 passed node1 250 250 250 passed Result: Kernel parameter check passed for "semmsl" Check: Kernel parameter for "semmns" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 32000 32000 32000 passed node1 32000 32000 32000 passed Result: Kernel parameter check passed for "semmns" Check: Kernel parameter for "semopm" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 100 100 100 passed node1 100 100 100 passed Result: Kernel parameter check passed for "semopm" Check: Kernel parameter for "semmni" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 128 128 128 passed node1 128 128 128 passed Result: Kernel parameter check passed for "semmni" Check: Kernel parameter for "shmmax" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 68719476736 68719476736 1052958720 passed node1 68719476736 68719476736 1052958720 passed Result: Kernel parameter check passed for "shmmax" Check: Kernel parameter for "shmmni" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 4096 4096 4096 passed node1 4096 4096 4096 passed Result: Kernel parameter check passed for "shmmni" Check: Kernel parameter for "shmall" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 4294967296 4294967296 2097152 passed node1 4294967296 4294967296 2097152 passed Result: Kernel parameter check passed for "shmall" Check: Kernel parameter for "file-max" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 6815744 6815744 6815744 passed node1 6815744 6815744 6815744 passed Result: Kernel parameter check passed for "file-max" Check: Kernel parameter for "ip_local_port_range" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 between 9000.0 & 65500.0 between 9000.0 & 65500.0 between 9000.0 & 65500.0 passed node1 between 9000.0 & 65500.0 between 9000.0 & 65500.0 between 9000.0 & 65500.0 passed Result: Kernel parameter check passed for "ip_local_port_range" Check: Kernel parameter for "rmem_default" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 262144 262144 262144 passed node1 262144 262144 262144 passed Result: Kernel parameter check passed for "rmem_default" Check: Kernel parameter for "rmem_max" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 4194304 4194304 4194304 passed node1 4194304 4194304 4194304 passed Result: Kernel parameter check passed for "rmem_max" Check: Kernel parameter for "wmem_default" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 262144 262144 262144 passed node1 262144 262144 262144 passed Result: Kernel parameter check passed for "wmem_default" Check: Kernel parameter for "wmem_max" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 1048576 1048576 1048576 passed node1 1048576 1048576 1048576 passed Result: Kernel parameter check passed for "wmem_max" Check: Kernel parameter for "aio-max-nr" Node Name Current Configured Required Status Comment ---------------- ------------ ------------ ------------ ------------ ------------ node2 1048576 1048576 1048576 passed node1 1048576 1048576 1048576 passed Result: Kernel parameter check passed for "aio-max-nr" Check: Package existence for "make" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 make-3.81-3.el5 make-3.81 passed node1 make-3.81-3.el5 make-3.81 passed Result: Package existence check passed for "make" Check: Package existence for "binutils" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 binutils-2.17.50.0.6-20.el5 binutils-2.17.50.0.6 passed node1 binutils-2.17.50.0.6-20.el5 binutils-2.17.50.0.6 passed Result: Package existence check passed for "binutils" Check: Package existence for "gcc(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 gcc(x86_64)-4.1.2-52.el5 gcc(x86_64)-4.1.2 passed node1 gcc(x86_64)-4.1.2-52.el5 gcc(x86_64)-4.1.2 passed Result: Package existence check passed for "gcc(x86_64)" Check: Package existence for "libaio(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 libaio(x86_64)-0.3.106-5 libaio(x86_64)-0.3.106 passed node1 libaio(x86_64)-0.3.106-5 libaio(x86_64)-0.3.106 passed Result: Package existence check passed for "libaio(x86_64)" Check: Package existence for "glibc(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 glibc(x86_64)-2.5-81 glibc(x86_64)-2.5-24 passed node1 glibc(x86_64)-2.5-81 glibc(x86_64)-2.5-24 passed Result: Package existence check passed for "glibc(x86_64)" Check: Package existence for "compat-libstdc++-33(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 compat-libstdc++-33(x86_64)-3.2.3-61 compat-libstdc++-33(x86_64)-3.2.3 passed node1 compat-libstdc++-33(x86_64)-3.2.3-61 compat-libstdc++-33(x86_64)-3.2.3 passed Result: Package existence check passed for "compat-libstdc++-33(x86_64)" Check: Package existence for "elfutils-libelf(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 elfutils-libelf(x86_64)-0.137-3.el5 elfutils-libelf(x86_64)-0.125 passed node1 elfutils-libelf(x86_64)-0.137-3.el5 elfutils-libelf(x86_64)-0.125 passed Result: Package existence check passed for "elfutils-libelf(x86_64)" Check: Package existence for "elfutils-libelf-devel" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 elfutils-libelf-devel-0.137-3.el5 elfutils-libelf-devel-0.125 passed node1 elfutils-libelf-devel-0.137-3.el5 elfutils-libelf-devel-0.125 passed Result: Package existence check passed for "elfutils-libelf-devel" Check: Package existence for "glibc-common" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 glibc-common-2.5-81 glibc-common-2.5 passed node1 glibc-common-2.5-81 glibc-common-2.5 passed Result: Package existence check passed for "glibc-common" Check: Package existence for "glibc-devel(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 glibc-devel(x86_64)-2.5-81 glibc-devel(x86_64)-2.5 passed node1 glibc-devel(x86_64)-2.5-81 glibc-devel(x86_64)-2.5 passed Result: Package existence check passed for "glibc-devel(x86_64)" Check: Package existence for "glibc-headers" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 glibc-headers-2.5-81 glibc-headers-2.5 passed node1 glibc-headers-2.5-81 glibc-headers-2.5 passed Result: Package existence check passed for "glibc-headers" Check: Package existence for "gcc-c++(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 gcc-c++(x86_64)-4.1.2-52.el5 gcc-c++(x86_64)-4.1.2 passed node1 gcc-c++(x86_64)-4.1.2-52.el5 gcc-c++(x86_64)-4.1.2 passed Result: Package existence check passed for "gcc-c++(x86_64)" Check: Package existence for "libaio-devel(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 libaio-devel(x86_64)-0.3.106-5 libaio-devel(x86_64)-0.3.106 passed node1 libaio-devel(x86_64)-0.3.106-5 libaio-devel(x86_64)-0.3.106 passed Result: Package existence check passed for "libaio-devel(x86_64)" Check: Package existence for "libgcc(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 libgcc(x86_64)-4.1.2-52.el5 libgcc(x86_64)-4.1.2 passed node1 libgcc(x86_64)-4.1.2-52.el5 libgcc(x86_64)-4.1.2 passed Result: Package existence check passed for "libgcc(x86_64)" Check: Package existence for "libstdc++(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 libstdc++(x86_64)-4.1.2-52.el5 libstdc++(x86_64)-4.1.2 passed node1 libstdc++(x86_64)-4.1.2-52.el5 libstdc++(x86_64)-4.1.2 passed Result: Package existence check passed for "libstdc++(x86_64)" Check: Package existence for "libstdc++-devel(x86_64)" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 libstdc++-devel(x86_64)-4.1.2-52.el5 libstdc++-devel(x86_64)-4.1.2 passed node1 libstdc++-devel(x86_64)-4.1.2-52.el5 libstdc++-devel(x86_64)-4.1.2 passed Result: Package existence check passed for "libstdc++-devel(x86_64)" Check: Package existence for "sysstat" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 sysstat-7.0.2-11.el5 sysstat-7.0.2 passed node1 sysstat-7.0.2-11.el5 sysstat-7.0.2 passed Result: Package existence check passed for "sysstat" Check: Package existence for "ksh" Node Name Available Required Status ------------ ------------------------ ------------------------ ---------- node2 ksh-20100621-5.el5 ksh-20060214 passed node1 ksh-20100621-5.el5 ksh-20060214 passed Result: Package existence check passed for "ksh" Checking for multiple users with UID value 0 Result: Check for multiple users with UID value 0 passed Check: Current group ID Result: Current group ID check passed Starting check for consistency of primary group of root user Node Name Status ------------------------------------ ------------------------ node2 passed node1 passed Check for consistency of root user's primary group passed Starting Clock synchronization checks using Network Time Protocol(NTP)... NTP Configuration file check started... Network Time Protocol(NTP) configuration file not found on any of the nodes. Oracle Cluster Time Synchronization Service(CTSS) can be used instead of NTP for time synchronization on the cluster nodes No NTP Daemons or Services were found to be running Result: Clock synchronization check using Network Time Protocol(NTP) passed Checking Core file name pattern consistency... Core file name pattern consistency check passed. Checking to make sure user "grid" is not in "root" group Node Name Status Comment ------------ ------------------------ ------------------------ node2 passed does not exist node1 passed does not exist Result: User "grid" is not part of "root" group. Check passed Check default user file creation mask Node Name Available Required Comment ------------ ------------------------ ------------------------ ---------- node2 0022 0022 passed node1 0022 0022 passed Result: Default user file creation mask check passed Checking consistency of file "/etc/resolv.conf" across nodes Checking the file "/etc/resolv.conf" to make sure only one of domain and search entries is defined File "/etc/resolv.conf" does not have both domain and search entries defined Checking if domain entry in file "/etc/resolv.conf" is consistent across the nodes... domain entry in file "/etc/resolv.conf" is consistent across nodes Checking if search entry in file "/etc/resolv.conf" is consistent across the nodes... search entry in file "/etc/resolv.conf" is consistent across nodes Checking file "/etc/resolv.conf" to make sure that only one search entry is defined All nodes have one search entry defined in file "/etc/resolv.conf" Checking all nodes to make sure that search entry is "oracle.com" as found on node "node2" All nodes of the cluster have same value for 'search' Checking DNS response time for an unreachable node Node Name Status ------------------------------------ ------------------------ node2 passed node1 passed The DNS response time for an unreachable node is within acceptable limit on all nodes File "/etc/resolv.conf" is consistent across nodes Check: Time zone consistency Result: Time zone consistency check passed Fixup information has been generated for following node(s): node2,node1 Please run the following script on each node as "root" user to execute the fixups: '/tmp/CVU_11.2.0.4.0_grid/runfixup.sh' Pre-check for cluster services setup was unsuccessful on all the nodes. [grid@node1 grid]$
安装ORACLE高可用RAC集群11g校验集群安装的可行性输出信息的更多相关文章
- 安装ORACLE高可用RAC集群11g执行root脚本的输出信息
安装ORACLE高可用RAC集群11g执行root脚本的输出信息 作者:Eric 微信:loveoracle11g [root@node1 ~]# /u01/app/oraInventory/orai ...
- 使用kubeadm安装kubernetes高可用集群
kubeadm安装kubernetes高可用集群搭建 第一步:首先搭建etcd集群 yum install -y etcd 配置文件 /etc/etcd/etcd.confETCD_NAME=inf ...
- Linux源码安装RabbitMQ高可用集群
1.环境说明 linux版本:CentOS Linux release 7.9.2009 erlang版本:erlang-24.0 rabbitmq版本:rabbitmq_server-3.9.13 ...
- 转://Oracle 高可用技术与云基础架构
众所周知Oracle云基础架构已经在越来越多的行业里应用.大家了解云基础架构是如何演进的嘛?可能有人会说Oracle高可用技术是组成云架构的基础,那它们的关系是怎么样的?大家又了解Oracle高可用技 ...
- Hbase(一)【入门安装及高可用】
目录 一.Zookeeper正常部署 二.Hadoop正常部署 三.Hbase部署 1.下载 2.解压 3.相关配置 4.分发文件 5.启动.关闭 6.验证 四.HMaster的高可用 一.Zooke ...
- Oracle 高可用作业测试
1.RAC 是一种: A 分布式数据库B 内存共享多节点数据库C 能够保护数据安全的架构 2.RAC 和CRS 的区别是: A 前者表示一种架构,后者是一套软件B 前者表示一套软件,后者是一种架构 C ...
- 安装Oracle 18.4 RAC 遇到ORA-40238报错
场景: Aix 7.2 上安装Oracle 18.4 RAC 执行root.sh脚本,ASM failed to start !查看日志文件:ORA-40238: invalid linear alg ...
- rabbitmq安装与高可用集群配置
rabbitmq版本:3.6.12 rabbitmq安装 1.安装openssl wget http://www.openssl.org/source/openssl-1.0.0a.tar.gz &a ...
- 大数据高可用集群环境安装与配置（09）——安装Spark高可用集群
1. 获取spark下载链接 登录官网:http://spark.apache.org/downloads.html 选择要下载的版本 2. 执行命令下载并安装 cd /usr/local/src/ ...
随机推荐
- Ansible 小手册系列 十四（条件判断和循环）
条件判断 When 语句 在when 后面使用Jinja2 表达式,结果为True则执行任务. tasks: - name: "shut down Debian flavored syste ...
- Linux获取so/ko文件版本号教程
一.需要获取版本号的原因 从使用角度而言,有时只有特定版本的库才支持某些功能,所以我们需要确定库文件版本号. 从安全加固角度而言,有些版本存在漏洞有些版本不存在漏洞,所以我们需要获取版本号以确定当前使 ...
- vue教程自学笔记（二）
三.模板语法 1.文本 数据绑定最常见的形式就是使用“Mustache”语法 (双大括号) 的文本插值. 通过v-once指令,你也能执行一次性地插值,当数据改变时,插值处的内容不会更新. 2.原始H ...
- 高性能消息中间件——NATS
前 言 这段时间我的主要工作内容是将公司系统中使用的RabbitMQ替换成NATS,而此之前我对Nats一无所知.经过一段时间紧张的学习和开发之后我顺利的完成了任务,并对消息中间件有了更深的了解.在此 ...
- 分布式系统定时任务，保证只有一个服务执行了改任务--采用redis分布式锁来实现（文章摘自：https://www.cnblogs.com/0201zcr/p/5942748.html）
文章摘自:https://www.cnblogs.com/0201zcr/p/5942748.html package com.abtc.server.mine.common.utils; impor ...
- Erlang ETS Table
不需要显示用锁,插入和查询时间不仅快而且控制为常量,这就是Erlang的ETS Table. 为什么而设计? Erlang中可以用List表达集合数据,但是如果数据量特别大的话在List中访问元素就会 ...
- linux之目录文件操作
- Python 进程池的异步方法
import time from multiprocessing import Process,Pool def f1(n): time.sleep(0.5) # print(n) return n* ...
- 剑指Offer 20. 包含min函数的栈 （栈）
题目描述 定义栈的数据结构,请在该类型中实现一个能够得到栈中所含最小元素的min函数(时间复杂度应为O(1)). 题目地址 https://www.nowcoder.com/practice/4c77 ...
- git 本地重命名文件夹大小写并提交到远程分支
git branch 查看本地分支 git branch -a 查看本地 本地分支可直接切换:git checkout name 进入正题: 1.文件夹备份 2.git config core.ign ...