For example, given the following map:
{
“k1″: {
” k2″: {
“k3”: {
“k4”: “v”
}
}
}
} and the field list [“k1”, “k2”, “k3”], I need to retrieve the part {“k4”: “v”}.
The following i
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High availability LAMP via HeartBeat 2.x
One, test environment
Two, configure the time synchronization of the three servers and modify the crontab to automatically synchronize with the ntp server
crontab -e */2 * * * * /u
Automatic update of APP via RSS
The origins
Actually, I thought about this idea as early as ten years ago when I was still working on the desktop application, and I tried it in a DELPHI program, but Because I didn’t do desktop a
Building a local YUM warehouse via mount system U disk
First, open hbza (CentOS) and yum, the two must be connected
th1Step: athbza Create a directory and enter mkdir /lxk, start with any name. Entermount /dev/cdrom /lxk
< /p>
第2Step
The process of recovering data by scraping method
Background of the server data recovery case: –The server raid disk array group is paralyzed. There are 3 hard disks in the disk array. At present, one hard disk has a red alarm light. The data tha
Change the BIOS settings on the SuperMicro system via script
I see that Dell & HP have a program that can change the B IOS settings remotely or through scripts/files.
Does anyone know how to do it on the Supermicro system? To do this, or is there a sys