Do you really want to reduce benet? [y/n]: y LVM 创建快照 目前LVM 只针对逻辑卷建立快照 [root@kumu ~]# mount /dev/vg0/lv0 /mnt/ [root@kumu ~]# ls -lh /mnt/ 总计12K drwx--- 2 root root 12K 03-26 21:37 lost+found [root@kumu ~]# ls -l /dev/vg0/ 总计0 lrwxrwx...
1. Hadoop历史:1.1创建者:1.2名字起源:1.3三驾马车: 谷歌的三驾马车: GFS、MapReduce和BigTable 根据谷歌的三驾马车得到了:HDFS、Hadoop、HBase1.4hadoop生态圈: HDFS:分布式存储 Yarn:分布式资源管理器 Mapreduce:分布式计算框架 common:公共部分2.HDFS存储原理:2.1各个角色及其作用: ...
通过Hive的命令行工具,我们可以轻松地查看Reduce任务的进度。 ### 流程图 ```mermaid flowchart TD Start --> A(提交Hive作业) A --> B(查看Reduce进度) B - Hive ci 示例代码 原创 mob64ca12d32849 8月前 16阅读 1 2 3 4 5 相关搜索全部...
Themod_statusis an Apache server module that allows you to monitor the workers’ status of the Apache server. It generates a report in an easy-to-read HTML format. It shows you the status of all the workers, how much CPU each one using, what requests are currently handled, and the num...
For more information, see the guidance in the article, Recommendations to reduce allocation contention in SQL Server tempdb database. Advanced configuration The following recommendations are optional configuration settings that you might choose to perform after installati...
The code makes extensive use of hard links whenever possible to greatly reduce the disk space required. System Rescue CD - SystemRescueCd is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash. TestDisk - ...
default=0x249f0 (uint) parm: dcqcn_rai_factor:set number of MSS to add to the congestion window in additive increase mode, default=1 (ushort) parm: dcqcn_hai_factor:set number of MSS to add to the congestion window in hyperactive increase mode, default=5 (ushort) parm: dcqcn_rreduce...
$ sudo python3 auto-cpufreq.py --remove All persistent changes will also be removed. Here is a short visual demo made by the developer. Of course, there are many tools, such asCPU Power manager,TLP,Laptop Mode Toolsandpowertop, exists to reduce power consumption and improves overall Laptop...
CPU will run theIRQ handlerthat runs the driver's code Driver willschedule a NAPI, clear thehard IRQand return Driver raise asoft IRQ (NET_RX_SOFTIRQ) NAPI will poll data from the receive ring buffer untilnetdev_budget_usecstimeout ornetdev_budgetanddev_weightpackets ...
1.build kernel之时的各个configuration选项。 2.当kernel启动之时,可以参数在kernel被GRUB或LILO等启动程序调用之时传递给kernel。 3.在kernel运行时,修改/proc或/sys目录下的文件。 这里我简单讲的就是第二种方式了,kernel在grub中配置的启动参数。 首先,kernel有哪些参数呢? 在linux的源代码中,有这样的一个文档...