Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Server Fault. Closed 9 years ago. Improve this question I got an homework assignment to write a program that checks how many process a user can create (working in Ubuntu). I wrote … Read more
I am using process control in PHP to create forks. My server’s operating system is Ubuntu. How can I know what is the capacity of my server in handling those forks? Is there a limit? And if so, can I change it? Answer Looking at the output of sysctl kernel.pid_max. The default should be 32768. … Read more
I have a piece of software running on a 64 bit Cent 5.8 Final box, kernel 2.6.18. This piece of software using fork and vfork. Recently some failures occurred, and in my logging I can see that fork or vfork failed, emitting a return code of -1. Cool, everything one would expect after a system … Read more
I am using mongo-connector to synchronize data between MongoDB and SOLR. I am working in RedHat 7 OS Server, I wanted to run the mongo-connector command as fork process in Server OS, since i need a realtime synchronization without any interruption. I am issuing the command sudo mongo-connector -m localhost:27017 -t http://localhost:8983/solr/Search –auto-commit-interval=0 -d solr_doc_manager … Read more
I have a CentOS VM on which I’m running a php socket server, that forks on every connection. The child process does its job and then exits. The parent is also waiting to reap the dead zombie process (I have checked the ps auxf output) pcntl_wait($status, WNOHANG); is executed after before every fork, so that … Read more
I have a makefile that calls external build scripts. Some of these scripts (which I can’t change) make use of commands that are forked / backgrounded (or asynchronous as the bash manual names them) That means that the next line in the makefile can start before some of the previous command finishes – creating a … Read more
I have inherited a Perl script that runs on an EC2 instance which basically crawls a bunch of URL’s for data (aka scraping). The way this script is invoked is via a shell script that forks multiple of these perl scripts. There could be hundreds of these Perl scripts running at any given point depending … Read more
I want to find out how Puppet handles manifests: in master process or Puppet forks it to execute in child process? It necessary for me to know what exactly do puppet master while handling manifests, because I need to push some default configurations into “container” running on “client” machine. That “client” node is the slave … Read more
I run a server, mostly for using with random Docker containers and as a Gitlab-CI runner. Every once in a while, when the server has been running for a week or so, I run into process resource limits. For example, I tried to configure the gitlab runner, … Registering runner… succeeded runner=gy1zjHEv runtime: failed to … Read more
Yes, I have gone through a lot of answers, but they don’t really specifically say if Zombie Processes will have any adverse effects in the longer run or not. I have an application that creates a child on new connection and the child performs certain task, closes the connection and exits. Then the process becomes … Read more
