2017-12-19 · 就是说 ，从os 级别上如果发kill -s SIGUSR1 或者 kill -s SIGUSR2 ，确实可以激活相应的程序(CatchSigUsr1,CatchSigUsr2) 也可以改成这样： [root@localhost test]# cat testsig.cpp #include
Fri Nov 25 21:45:37 2016 SIGUSR1[soft,connection-reset] received, process restarting Fri Nov 25 21:45:37 2016 MANAGEMENT: >STATE:1480128337,RECONNECTING,connection-reset,, Fri Nov 25 21:45:37 2016 Restart pause, 5 second(s) Fri Nov 25 21:45:41 2016 SIGTERM[hard,init_instance] received, process exiting If handler() is called to handle SIGUSR1 and is interrupted to handle SIGUSR2, it is possible that sig2 will not be set. Compliant Solution (POSIX) The POSIX sigaction() function assigns handlers to signals in a similar manner to the C signal() function, but it also allows signal masks to be set explicitly. SIGUSR1: 1: Intended for use by user applications. SIGUSR2: 1: Intended for use by user applications. SIGVTALRM: 1: Virtual timer has expired (available only when running on MVS 5.2 or higher). SIGXCPU: 1: CPU time limit exceeded (available only when running on MVS 5.2 or higher). May 09, 2018 · 2018-05-09T13:40:27.480 OVPN:>LOG:1525887627,I,SIGUSR1[soft,connection-reset] received, process restarting. I know Win10 has had issues with WG VPN client in the past, but this system was working a week ago, and had failed before the most recent updates were applied. Any help would be appreciated. CELEBP73 /* CELEBS73 This example demonstrates the use of the sigwait() function. The program will wait until a SIGINT signal is received from the command line. SIGUSR2 too. Both SIGUSR1 and 2 serve exactly same purpose, i.e user defined signals for use when a process wants to send a signal to another (or same) process for an event. The default behaviour of a process when it receives SIGUSR1 and 2 is to terminate itself unless the process has a handle for the signals.
When a process that receives a -SIGUSR1 request to dump a stack and also receives a simultaneous interrupt signal, the process can end up crashing with SYSTEM ERROR 49 which may also bring the database down as a result, or the process will hang indefinitely and no longer be responsive to further interrupt signals.
2015-9-3 linux中具体的signal（kill … 2015-5-18 · 10) SIGUSR1 留给用户使用 11) SIGSEGV 试图访问未分配给自己的内存, 或试图往没有写权限的内存地址写数据. 12) SIGUSR2 留给用户使用 13) SIGPIPE 管道破裂。 这个信号通常在进程间通信产生，比如采用FIFO(管道)通信的两个进程，读管道没打开或者意外终止就往管道写，写进程会收到SIGPIPE信号。