看/data11 目录下的文件,是hadoop的程序写入的大量数据文件 推测是 /dev/sdl1 (/data11的设备 ) 未挂载前,datanode就已启动。 因为根目录下 /data11 (这里是挂目录下的文件) 是空目录,类似/data3 这样的4K 目录。 datanode仍然能启动,它只是视作它为一个新的逻辑目录。
vmware是一个虚拟化工具,它可以安装在我们windows,然后在 vmware里安装 linux系统 3)在VMWARE中安装linux系统 第一步 :选择创建新的虚拟机 第二步:选择默认典型,下一步 第三步:选择默认的稍后安装操作系统 第四步:选择linux和对应的安装版本 第五步:安装位置选择资源充足的盘 第六步:磁盘大小更改成40G,大数据组...
~/.bashrc is the place to put stuff that applies only to bash itself, such as alias and function definitions, shell options, and prompt settings. (You could also put key bindings there, but for bash they normally go into ~/.inputrc.) ~/.bash_profile can be used instead of ~/.profile...
lsmod命令 - Show the status of modules in the Linux Kernel # 显示的内核模块信息来自于 /proc/modules 文件 # Module 模块名称 # Size 模块大小 # Used by 被引用的次数 [root@LeeMumu ~]# lsmod Module Size Used by ip6t_rpfilter 12595 1 ipt_REJECT 12541 2 nf_reject_ipv4 13373 1 ipt_REJ...
So there you have a brief overview of what the seven most used namespaces are. Hopefully, my analogy was useful and clear. In the next couple of articles, I explore some of these namespaces and how they are created by hand. This will give you a better understanding of the utility of na...
Many Articles Tell You Python Tricks, But Few Tell You Why Three common Python tricks make your program faster, I will explain the mechanisms Christopher Tao March 24, 2024 8 min read The Importance of KISS-ing and testing (when mixing programming languages…and in general) ...
Learn about increasing DevOps security with Oracle Linux Run cloud native apps on-premises and in the cloud Use a Cloud Native Computing Foundation (CNCF)–certified Kubernetes and a curated stack of open source software to configure, deploy, update, and upgrade infrastructure and run cloud native...
This allows me the control to decide if some scenarios have their sessions made public or not, while still retaining in the storage server all the casts.This feature was used in the Linux World Cup for example, where I wanted to show everyone how people solved (or tried to solve) the ...
Learn about increasing DevOps security with Oracle Linux Run cloud native apps on-premises and in the cloud Use a Cloud Native Computing Foundation (CNCF)–certified Kubernetes and a curated stack of open source software to configure, deploy, update, and upgrade infrastructure and run cloud nativ...
[root@localhost ~]# free -htotal used free shared buff/cache available Mem: 62G 27G 2.9G 568M 32G 33G swap: 16G 8.3G 8.1G 可以看到还有 2.9G 的空闲物理内存,但是系统已经开始使用 swap 了,初步判断是机器上面的程序内存需求比较大,但物理内存不够用所以开始使用 swap 来存储部分数据。