ulimit

Why * in /etc/security/limits.conf doesn't include root user?

对着背影说爱祢 提交于 2021-02-10 07:10:57
问题 I'm running a java program as root on a linux machine. In order to increase the Max open files limitation, I added the following lines into /etc/security/limits.conf * soft nofile 1000000 * hard nofile 1000000 However when I check the running program by cat /proc/<pid>/limits , it still tells me that the Max open files is 65536 . Until I added another two lines into /etc/security/limits.conf , the Max open files could be changed to 1000000 root soft nofile 1000000 root hard nofile 1000000 I

Why * in /etc/security/limits.conf doesn't include root user?

非 Y 不嫁゛ 提交于 2021-02-10 07:05:54
问题 I'm running a java program as root on a linux machine. In order to increase the Max open files limitation, I added the following lines into /etc/security/limits.conf * soft nofile 1000000 * hard nofile 1000000 However when I check the running program by cat /proc/<pid>/limits , it still tells me that the Max open files is 65536 . Until I added another two lines into /etc/security/limits.conf , the Max open files could be changed to 1000000 root soft nofile 1000000 root hard nofile 1000000 I

Can I set ulimit from node.js?

心已入冬 提交于 2020-07-19 03:30:42
问题 I'd like to restrict child processes from writing too much data or taking up too much cpu time (infinite loop). In C, I'd call setrlimit(2) to do that. Is there something like this in node.js? 回答1: As far as I know, there is no node.js extension that provides setrlimit() functionality, but you can work around the limitation with a small shell workaround hack: /bin/sh -c "ulimit -t 100; exec /usr/bin/node /my/node/program.js" Looks like core node.js will never have setrlimit() now that it

Docker Ignores limits.conf (trying to solve “too many open files” error)

孤人 提交于 2020-03-17 04:50:26
问题 I'm running a web server that is handling many thousands of concurrent web socket connections. For this to be possible, on Debian linux (my base image is google/debian:wheezy, running on GCE), where the default number of open files is set to 1000, I usually just set the ulimit to the desired number (64,000). This works out great, except that when I dockerized my application and deployed it - I found out that docker kind of ignores the limit definitions. I have tried the following (all on the

Ulimits in Docker host vs container

醉酒当歌 提交于 2020-02-26 07:18:12
问题 I wasn't able to find straight answer, to this question, but here it is: Let's say that I have a host which has max open files 1024: [root@host]# ulimit -a open files (-n) 1024 and a docker container running in that host with: [root@container]# ulimit -a open files (-n) 1048576 So will I have a problem in container if I try to open more then 1024 files? I think real limit in this case for container will be 1024 files. What do you think? 回答1: Although its a little bit late, I just want to

Ulimits in Docker host vs container

梦想与她 提交于 2020-02-26 07:18:00
问题 I wasn't able to find straight answer, to this question, but here it is: Let's say that I have a host which has max open files 1024: [root@host]# ulimit -a open files (-n) 1024 and a docker container running in that host with: [root@container]# ulimit -a open files (-n) 1048576 So will I have a problem in container if I try to open more then 1024 files? I think real limit in this case for container will be 1024 files. What do you think? 回答1: Although its a little bit late, I just want to

React Native + Jest EMFILE: too many open files error

半城伤御伤魂 提交于 2020-01-13 09:06:10
问题 I am trying to run Jest tests, but I'm getting the following error: Error reading file: /Users/mike/dev/react/TestTest/node_modules/react-native/node_modules/yeoman-environment/node_modules/globby/node_modules/glob/node_modules/path-is-absolute/package.json /Users/mike/dev/react/TestTest/node_modules/jest-cli/node_modules/node-haste/lib/loader/ResourceLoader.js:88 throw err; ^ Error: EMFILE: too many open files, open '/Users/mike/dev/react/TestTest/node_modules/react-native/node_modules

React Native + Jest EMFILE: too many open files error

寵の児 提交于 2020-01-13 09:04:19
问题 I am trying to run Jest tests, but I'm getting the following error: Error reading file: /Users/mike/dev/react/TestTest/node_modules/react-native/node_modules/yeoman-environment/node_modules/globby/node_modules/glob/node_modules/path-is-absolute/package.json /Users/mike/dev/react/TestTest/node_modules/jest-cli/node_modules/node-haste/lib/loader/ResourceLoader.js:88 throw err; ^ Error: EMFILE: too many open files, open '/Users/mike/dev/react/TestTest/node_modules/react-native/node_modules