linux process monitor restart

For every system administrator or network administrator, it is very difficult to monitor and debug Linux system performance issues every day. I've had 5 years of experience working with Linux administrators and know how to monitor the system to keep it running properly. To do this, we have written 20 command-line syste

recommended by everyone to complete the shutdown or restart with the parameter-H or-R mates. However, you can use this command only if you have root privileges on a Linux system. So, although it is recommended to use this command, this command is really inconvenient: do you want to use this command? Get root permission first. The shutdown performs shutdown and is sent to Init, requiring it to change the ru

timeout threshold by modifying/proc/sys/kernel/softlockup_thresh. If it is a centos kernel, the corresponding file is/proc/sys/kernel/watchdog_thresh. There is another difference between the centos kernel and the standard kernel, that is, the function that processes CPU usage for too long. In centos, The watchdog_timer_fn () function is used.Here we will introduce the concept of lockup. Lockup is divided into soft lockup and hard lockup. Soft lockup refers to a

Last night, the first translation of "command line Tools to Monitor Linux performance" in the first 10 commands, translation is not very good, this evening continue to the back of the 10 also translated to everyone, the first time to write a blog, writing is not particularly good, Hope that we do not mind, but also hope that there is something wrong with the place can be a lot of advice, after all, younger

Copy Code code as follows: #!/usr/bin/env python Import OS, sys, time While True: Time.sleep (3) Try ret = Os.popen (' ps-c nginx-o pid,cmd '). ReadLines () If Len (ret) Print "Nginx process killed, restarting service in 3 seconds." Time.sleep (3) Os.system ("Service nginx restart") Except Print "Error", Sys.exc_info () [1] Set file executable properties, added to/etc/rc.local, finall

Learn to shut down or restart your Linux system, and warn you that the system is shutting down, switching to a somewhat restrictive running level. This process is still unfamiliar to many Linux enthusiasts. Next, ask IBM Senior Programmer Ian Shields to introduce the Linux r

sync system call,The kernel is stopped after the file system write operation is complete.Parameter description:[-n] prevents the sync system from being called, it is used after patching the root partition with fsck to prevent the kernel from using the old version of the superLevel block (superblock) overwrite the patched super block.[-W] is not a real restart or shutdown, just write Wtmp(/var/log/wtmp) records.[-d] does not write wtmp record (include

Introduction to commands for server restart in linux I. Five Linux restart commands 1. shutdown 2. poweroff 3. init 4. reboot 5. halt Ii. Details of the five restart commands Shutdown Reboot In linux, some common shutdown/

Common shutdown and restart commands in Linux include shutdown, halt, reboot, and init, which can be used for shutdown and restart. However, the internal working process of each command is different, next we will introduce them one by one. 1. the shutdownshutdown command is used for security... common shutdown and

Linux centos Shutdown and restart command detailsLinux CentOS Restart Command: 1, reboot 2. shutdown-r now reboot (root user) 3, Shutdown-r 10 over 10 minutes automatic restart (root user use) 4, Shutdown-r 20:35 restart at 20:35 time (root user use)

removal, and port query functions.It can also prevent your system files from being modified, but you do not know.For example, login backdoor, process hiding...You also need to be notified to your mobile phone in time. You do not need to keep an eye on monitoring. Description:This system is used to monitor and manage your Linux server on the window client.Feature

Linux CentOS Restart Command: 1, reboot 2. shutdown-r now reboot (root user) 3, Shutdown-r 10 over 10 minutes automatic restart (root user use) 4, Shutdown-r 20:35 restart at 20:35 time (root user use) If you set the restart through the shutdown com

Tags:-o get key nbsp Tar Date Implementation Path operationRecently the company needs to monitor Tomcat's services under Linux, and once the Tomcat service is out of the ordinary or down, restart Tomcat to ensure that the service is up and running, because a shell script under Linux can achieve this effect. Below are t

Common shutdown and restart commands in Linux include shutdown, halt, reboot, and init, which can be used for shutdown and restart. However, the internal working process of each command is different, next we will introduce them one by one. 1. shutdownshutdown command: Linux

In Linux, the monitoring program is automatically restarted. to restart a mobile phone, follow these steps: ---- Linux restart command ---- Java code 1, shutdown2, poweroff3, init4, reboot5, and halt are not described here, mainly about automatic restart... in

Some common shutdown/Restart commands under Linux are shutdown, halt, reboot, and Init, all of which can be used to reboot the system, but each command has a different internal working process.Linux CentOS Restart command:1, reboot2. shutdown-r now reboot (root user)3, Shutdown-r 10 over 10 minutes automatic restart (r

1. top-Linux System process monitoringThe top command is a performance monitor that can be used in many Linux/unix versions, and it is also a tool for monitoring system performance often used by Linux system administrators. The TOP command periodically displays all running a

First,Linux five restart command　　1, shutdown　　2, Poweroff　　3. Init　　4, reboot　　5, haltIi. Specific instructions for five restart commandsShutdownRebootIn Linux, some common shutdown/restart commands have shutdown, halt, reboot, and INIT, they can achieve the purpose of rebo