timeout

问题 I am implementing monitor_log function which will tail the most recent line from running log and check required string with while loop, the timeout logic should be when the tail log running over 300 seconds, it must close the tail and while loop pipeline. The big issue i found is for some server the running log NOT keep generating, which means tail -n 1 -f "running.log" will also NOT generate output for while loop to consume, hence the timeout checking logic if [[ $(($SECONDS - start_timer))

问题 I would like to have a server that connects to one client at a time, ignoring connection request when connected to a given client. I would also liked to avoid the server to get locked when listening for the first client, so that the program can be terminated cleanly. Apparently, sockets can be made non blocking: http://beej.us/guide/bgnet/output/html/singlepage/bgnet.html#blocking I created my socket accordingly (error management code removed for clarity) int sockfd; struct sockaddr_in self;

问题 I would like to have a server that connects to one client at a time, ignoring connection request when connected to a given client. I would also liked to avoid the server to get locked when listening for the first client, so that the program can be terminated cleanly. Apparently, sockets can be made non blocking: http://beej.us/guide/bgnet/output/html/singlepage/bgnet.html#blocking I created my socket accordingly (error management code removed for clarity) int sockfd; struct sockaddr_in self;

问题 I would like to have a server that connects to one client at a time, ignoring connection request when connected to a given client. I would also liked to avoid the server to get locked when listening for the first client, so that the program can be terminated cleanly. Apparently, sockets can be made non blocking: http://beej.us/guide/bgnet/output/html/singlepage/bgnet.html#blocking I created my socket accordingly (error management code removed for clarity) int sockfd; struct sockaddr_in self;

问题 I'm making a puzzle solving function which uses an array of puzzle pieces in their current shuffled order. Each piece has an id which points to the correct position in the array. I set overlay colors on the pieces that are about to be swapped. I want for there to be a delay between the pieces being colored and then swapped. function solvePuzzle() { while (rezolvat == false) // while all pieces are not in correct position for (var i = 0; i < _piese.length; i++) { // iterates through array of

问题 I have a 4 node elasticsearch cluster. I have a .net console application that is designed to fill the cluster with data which comes from sql. Everything works fine as long as I keep the rate of records being added (or deleted) fairly low. If I increase the number of threads eventually I will see timeout errors from my console app. The cluster has a total of 48 cores and the average time it takes to index a record is about .1 seconds. I have been able to get it to do about 7000 records

问题 I have got the error Lock wait timeout exceeded; try restarting transaction . What are the reasons for this and how to solve the problem? FYI: innodb_lock_wait_timeout = 100 in MySQL config file. 回答1: This is problem of lock contention , which ultimately result in a time-out on one of the lock. Here are a few suggestions: Make sure you have the correct indexes which result in row-level locks not table-level lock. This will reduce the contention. Make sure you have indexes on the foreign key

问题 I have got the error Lock wait timeout exceeded; try restarting transaction . What are the reasons for this and how to solve the problem? FYI: innodb_lock_wait_timeout = 100 in MySQL config file. 回答1: This is problem of lock contention , which ultimately result in a time-out on one of the lock. Here are a few suggestions: Make sure you have the correct indexes which result in row-level locks not table-level lock. This will reduce the contention. Make sure you have indexes on the foreign key

问题 I have got the error Lock wait timeout exceeded; try restarting transaction . What are the reasons for this and how to solve the problem? FYI: innodb_lock_wait_timeout = 100 in MySQL config file. 回答1: This is problem of lock contention , which ultimately result in a time-out on one of the lock. Here are a few suggestions: Make sure you have the correct indexes which result in row-level locks not table-level lock. This will reduce the contention. Make sure you have indexes on the foreign key

问题 I'm writing a perl script that needs to work in windows and linux that will run a process, timeout if it takes too long, return the exit code assuming it didn't timeout, and return stdout assuming the exitcode was zero and it didn't timeout. I don't need STDIN or STDERR. I've tried to use IPC::run but couldn't get it to work. The closest I got is with IPC::Open3 and waitpid($pid, WNOHANG) . But I've hit a snag. I'm seeing different results on windows and linux. In the code below I give open3