sigterm

问题 I am developing for Linux and have a daemon that should write to disk when it is killed. The daemon could be configured to listen to SIGTERM and write to disk when that signal is received. I am also familiar with the PrepareForShutdown D-Bus signal issued by the login manager. Listening to SIGTERM results in simpler code than inhibiting shutdown and listening to the PrepareForShutdown signal. Another advantage of SIGTERM is that it handles cases where the daemon is politely killed even though

问题 In Node.js servers, is there any difference between catching SIGTERM vs catching SIGINT? I thought processes were not supposed to be able to prevent shutdown upon a SIGINT? process.once('SIGINT', function (code) { console.log('SIGINT received...'); server.close(); }); // vs. process.once('SIGTERM', function (code) { console.log('SIGTERM received...'); server.close(); }); Am I able to trap both signals and prevent exit? My experimentation suggests the answer is yes, but from what I have read,

问题 Windows 10 x64 Node v12.19.0 Why wasn't called my handler of SIGTERM event after first opening http://localhost:3000/ in a browser? Application is terminated without executiong my handler (I don't see its console output). // node v12.19.0 const http = require("http"); const server = http.createServer((req,res)=> { res.statusCode = 200; res.end("Hello, World!"); setTimeout(() => { process.kill(process.pid, "SIGTERM"); } , 2000); }); process.on("SIGTERM", () => { // Why it will not be executed?

问题 Windows 10 x64 Node v12.19.0 Why wasn't called my handler of SIGTERM event after first opening http://localhost:3000/ in a browser? Application is terminated without executiong my handler (I don't see its console output). // node v12.19.0 const http = require("http"); const server = http.createServer((req,res)=> { res.statusCode = 200; res.end("Hello, World!"); setTimeout(() => { process.kill(process.pid, "SIGTERM"); } , 2000); }); process.on("SIGTERM", () => { // Why it will not be executed?

问题 I am trying to install a CTRL-Z (SIGTSTP) handler for a running foreground process. I set the handler ( sigaction ) right before I wait in the parent. Is this the right place? It doesn't seem to work right.. EDIT: I am writing a shell. Here is an outline of how my code looks like. I currently set the handler in the parent as shown below (which doesn't seem to work). // input from user for command to run pid_t pid; pid = fork(); // Child Process if (pid == 0) { // handle child stuff here //

问题 Under POSIX OS there is signal API that allows to send a signal to process to shut it down with kill and you can catch it with sigaction and do what you need; However, Win32 is not POSIX system, so: How can I handle shutdown events that may come, for example from "End Process" in "Task manager"? What is the standard API for sending shutdown signal to Win32 application? I'm not talking about GUI, I'm talking about TCP/IP server that should be nicely shutdown. that does not run like windows

问题 I am trying to Setup SonarQube on Centos 6 VM with 6GB of RAM. The process always exits with 143. On analysis I found that the JVM is being sent a SIGTERM signal and thus exiting. There are no core dumps and dmesg is also quite unhelpful. I also tried fiddling with the Memory options to no avail. If some can help me debug this issue it will be quite useful. At least, I will have some idea why this software is being terminated. jvm 1 | 2018.03.06 15:32:59 INFO app[][o.e.p.PluginsService] no

问题 bundle exec thin start -p 3111 gives the following output: Using rack adapter Thin web server (v1.2.11 codename Bat-Shit Crazy) Maximum connections set to 1024 Listening on 0.0.0.0:3111, CTRL+C to stop ^C Ctrl-C doesn't do anything (SIGINT). Neither does kill (SIGTERM). I've found a few references to this behavior, but no solutions. The problem seems to be either in eventmachine (bundled with latest thin), in ruby 1.9.2-r290, or in the linux kernel (Ubuntu 10.4 LTS, 2.6.38.3-linode32). It

问题 I don't understand why I am getings this FATAL exception . It works just fine in localhost . I understand that SIGTERM is simply a signal to terminate the program, and I don't believe the solution is to handle or ignore it. When I look at the deployed website it displays as a white page. How can I fix this error so that my app can display normally? Here are my Heroku logs: 2014-04-23T20:59:57.995734+00:00 app[web.1]: /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `block in

问题 In Linux when I run the destroy function on java.lang.Process object (Which is true typed java.lang.UNIXProcess ) it sends a SIGTERM signal to process, is there a way to kill it with SIGKILL? 回答1: Not using pure Java. Your simplest alternative is to use Runtime.exec() to run a kill -9 <pid> command as an external process. Unfortunately, it is not that simple to get hold of the PID. You will either need to use reflection black-magic to access the private int pid field, or mess around with the