05-12-2009
Abnormal behaviour of Defunct processes.
Hi All,
Sorry to bother you all if my query is silly. Can you please clarify my doubts on defunct processes.
Actually coming to the scenario, i have a server which is under cluster environment. Server B is having problems with the defunct process. There was a cron scheduled on Server B which runs in a particular time on everyday and it runs only once in a day. The script calls some more scripts to collect system info executing comman OS level commands like prstat,sar etc... This scripts will be called via a specific port. When the scripts starts executing, normally 10-11 defunct processes will be created and will dissappear if the script complets its execution. But from couple of weeks its being sick to see that the defuncts created were creaping upto 1000+.
Also, a point of note: The defuncts will never appear on weekends i.e. saturday and sunday, even though scripts execute.
To ensure that the scripts are working fine, i went round the Server A and checked the scripts. I found no difference with them.
May i know why this is happening to Server B. Is there any performance issues with Server B?
Can anyone post in their ideas!!! what else i can check to solve this problem?
Many thanks in advance.
Cheers,
Sai
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
When I ps -ef I see about 3 or 4 <DEFUNCT> things - what are these, and what causes them? Are they a concern? How can I fix them?
Thanks,
Michael (4 Replies)
Discussion started by: cuppjr
4 Replies
2. Solaris
mqm 17700 16815 0 0:00 <defunct>
kill -9 does not work, even as root (10 Replies)
Discussion started by: csaunders
10 Replies
3. UNIX for Dummies Questions & Answers
Hey guys/gals. I am new to the site and fairly new to Unix/Linux. I have a master netbackup server (solaris) that I get pinged on occasionally regarding defunct processes. (Usually over 50 or so of them.) I know what a defunct process is, but what is it a product of? Just plain sloppy code? (From... (1 Reply)
Discussion started by: EMCSANMAN
1 Replies
4. AIX
Hi,
Can any one help me to get rid of defunct process on UNIX IBM AIX box. These processes started when the system was rebooted almost after 1 1/2 years. Once one defunct process is created then all the user ids get infected and in turn creates numerous defunct processes. We have tried... (6 Replies)
Discussion started by: trokia88
6 Replies
5. UNIX for Advanced & Expert Users
Hi,
I am facing problems with defunct processes. The problem is, the defuncts are being created and getting dissappeared by themselves.
I have a process that calls some scripts through a specified port, when this scripts starts executing, the defuncts also started to appear(lots and lots, will... (1 Reply)
Discussion started by: reddybs
1 Replies
6. HP-UX
Dear Sir / Madam,
We have two socket programs which are running in background. These two socket programs are creating defunct processes in HP-UX which were not happening in Compaq True64 UNIX. What is the root cause of these defunct processes and how can we correct it?
Your suggestion will be... (3 Replies)
Discussion started by: kcsahoo
3 Replies
7. UNIX for Advanced & Expert Users
HiI had a tool fail recently, on analysis I found it was cleaning up orphaned directories that had been created by specific processes that had died for some reason, thus failing to clean up after themselves.The directories were of the form /dir.pid. The tool would look to see if any instances of... (2 Replies)
Discussion started by: steadyonabix
2 Replies
8. Solaris
hi all,
I'm working Solaris 5.10 (5.10 Generic_137137-09 sun4u sparc SUNW,SPARC-E nterprise)
Few days ago, my junior engineer made a mistake! He is execute shutdown command on the live server. He mis understand between live and test servers! :wall:
The live... (0 Replies)
Discussion started by: buyantugs
0 Replies
9. HP-UX
I'd like to remove this defunct processes without rebooting. Or, I could remove this defuncts when the maximum allowable process is nearly reached, then send an email to the user/team. How can I determine the maximum allowable process that a server can handle? Any thoughts?
Jin@PRODUCTION: >... (3 Replies)
Discussion started by: Jin_
3 Replies
10. HP-UX
How to find out and clear the 'defunct' processes at OS and DB level ..?? (6 Replies)
Discussion started by: SurajR
6 Replies
LEARN ABOUT LINUX
npm-run-script
NPM-RUN-SCRIPT(1) NPM-RUN-SCRIPT(1)
NAME
npm-run-script - Run arbitrary package scripts
SYNOPSIS
npm run-script <command> [--silent] [-- <args>...]
alias: npm run
DESCRIPTION
This runs an arbitrary command from a package's "scripts" object. If no "command" is provided, it will list the available scripts.
run[-script] is used by the test, start, restart, and stop commands, but can be called directly, as well. When the scripts in the package
are printed out, they're separated into lifecycle (test, start, restart) and directly-run scripts.
As of ` https://blog.npmjs.org/post/98131109725/npm-2-0-0, you can use custom arguments when executing scripts. The special option -- is
used by getopt https://goo.gl/KxMmtG to delimit the end of the options. npm will pass all the arguments after the -- directly to your
script:
npm run test -- --grep="pattern"
The arguments will only be passed to the script specified after npm run and not to any pre or post script.
The env script is a special built-in command that can be used to list environment variables that will be available to the script at run-
time. If an "env" command is defined in your package, it will take precedence over the built-in.
In addition to the shell's pre-existing PATH, npm run adds node_modules/.bin to the PATH provided to scripts. Any binaries provided by
locally-installed dependencies can be used without the node_modules/.bin prefix. For example, if there is a devDependency on tap in your
package, you should write:
"scripts": {"test": "tap test/*.js"}
instead of
"scripts": {"test": "node_modules/.bin/tap test/*.js"}
to run your tests.
The actual shell your script is run within is platform dependent. By default, on Unix-like systems it is the /bin/sh command, on Windows it
is the cmd.exe. The actual shell referred to by /bin/sh also depends on the system. As of `
https://github.com/npm/npm/releases/tag/v5.1.0 you can customize the shell with the script-shell configuration.
Scripts are run from the root of the module, regardless of what your current working directory is when you call npm run. If you want your
script to use different behavior based on what subdirectory you're in, you can use the INIT_CWD environment variable, which holds the full
path you were in when you ran npm run.
npm run sets the NODE environment variable to the node executable with which npm is executed. Also, if the --scripts-prepend-node-path is
passed, the directory within which node resides is added to the PATH. If --scripts-prepend-node-path=auto is passed (which has been the
default in npm v3), this is only performed when that node executable is not found in the PATH.
If you try to run a script without having a node_modules directory and it fails, you will be given a warning to run npm install, just in
case you've forgotten.
You can use the --silent flag to prevent showing npm ERR! output on error.
You can use the --if-present flag to avoid exiting with a non-zero exit code when the script is undefined. This lets you run potentially
undefined scripts without breaking the execution chain.
SEE ALSO
o npm help 7 scripts
o npm help test
o npm help start
o npm help restart
o npm help stop
o npm help 7 config
January 2019 NPM-RUN-SCRIPT(1)