An instance of a running computer program.

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Estimate RAM necessary for a process on Linux

I am a user of a Linux-based computing cluster that runs a task queuing system PBSPro. PBSPro likes to know how much RAM should be available for a task to make sure it will execute correctly; for ...
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36 views

Nginx/PHP5-FPM master process - high CPU usage

I've been having some weird issues with PHP-FPM and high CPU usage from the master process. I normally have CPU spikes from traffic since we have a lot of websites but I also run heavy caching with ...
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49 views

Running Internet Explorer 11 32 and 64 bit simultaneously in Windows 7

I have a web application whose developers says should only be used with IE11 in 64 bit mode due to large memory footprint. I have other web applications/plugins which are untested/incompatible with ...
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19 views

starting a system with constraints using systemd

I have a large system that consists of multiple processes and docker containers. I would like to have the system initialized by systemd but I have several constraints between the processes: There ...
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6 views

Apache write access to a SMB Share

Apache server can follow symlink, i've tested it in the local filesystem and all worked fine. So the problem is in the SMB share. I authorized the user ApacheSLINUX01 to be the one who have the full ...
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11 views

How can I debug frozen processes on Linux?

I'm running an ArmA 3 game server on my Ubuntu 14.04LTS box. Ever since the box was moved to a new data center, the game server has been plagued by a random freeze issue. When this happens, the ...
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1answer
13 views

Methods for monitoring and alerting data issues when dealing with complex dependencies

In this hypothetical example, we have a data flow across multiple engineering teams in an ecommerce company. These teams deliver services, produce data, and consume data at different points of the ...
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35 views

Zabbix: Monitor child spawn rate

We have set up zabbix to monitor our infrastructure, and our security team denied us to run custom scripts through zabbix. This makes our lives a bit harder to find solutions which don't require ...
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23 views

Real memory usage on Linux and Private_Dirty

On Linux, is using Private_Dirty value from smaps a good way to measure real process memory usage? Thanks
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37 views

PHP exec() over UNC path on Windows

My environment is Windows Server 2012 R2, IIS 8, Active Directory, and a file share. IIS, AD, and the file share are all separate VMs. I have a website, www.example.com, set up in IIS. The ...
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2answers
51 views

Java process stay in running state and consume CPU

I have a jar running in background on a Ubuntu server. In a certain moment, the application start consumming too much CPU (400%) and 4 child process stay in R state: N.B: the problem is ...
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4answers
76 views

10 min. bursts of CPU usage: how can I find out which processes are the cause?

The CPU usage graph above was generated by running psensor overnight on my linux box. Note the 10 minute bursts of activity consuming up to 40% of the Xeon. The machine ought to have been at idle ...
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55 views

CentOS suspicious process

One of my web server is running on CentOS and I have been spotted that one of the processes is taking almost all swap memory. Mention process is: /opt/opsware/agent/bin/pyton ...
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1answer
151 views

Why is this process refusing to quit?

I have a cron job that runs a shell script that executes a php script. It runs every day, sends some email, and writes to stdout (which is redirected to a log file in the shell script). It looks as ...
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1answer
46 views

how to access to lost process? [duplicate]

Let's assume I run putty on windows and connect to Debian Jessie remotely. I run Midnight commander, and run long term task. Than got power loss on Windows, so putty connection is lost. Of course I ...
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1answer
54 views

How can we get IO utilization for Process by Process ID using /proc directory? [closed]

I need to IO utilization for Process by Process ID without using any tool like iostat,iotop etc. Can any please help me to get IO utilization using info files using /proc/PID? Thanks in ADV.
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52 views

Oracle invoked oom-killer even when RAM and SWAP is plenty free?

Can you please tell me what cause this Oracle process killed? Seems like plenty of RAM free, and plenty of SWAP free. There followed few other oracle processes killed. The VM has the 16G of vMem and 8 ...
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1answer
28 views

How to exit all supervisor processes if one exited with 0 result

I run docker container with supervisor like this: Dockerfile CMD ["/run.sh"] run.sh #!/usr/bin/env bash exec supervisord -n supervisor-serf.conf [group:job] programs=serf,producer ...
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47 views

printing a children's full tree recursively in bash script

sry for not being familiar with question conventions since im new here. i want to write a script that prints the full children's tree recursively of a given pid. i got so far as: ps h -ef | awk ...
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20 views

Jira/Confluence hogging memory with lots of processes

We've been working with Jira and Confluence on a Debian 6 VPS for a while now. Everything is fine as far as their daily use is concerned. The issue we are encountering now is that occasionally, the ...
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1answer
62 views

Linux Server Memory: Is this enough?

One of (weblogic)process on my WAS server(redhat linux) is killed at last night. There is no log. so I doubt my system memory. Is the system or process has enough memory? server specification and ...
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1answer
73 views

How to find what processes were running at a time in the past?

I am asked to investigate a high CPU usage alert which occurred this morning. I used sar -p and saw the high CPU usage showing up at that time Next I used ps -eo pcpu,pid,user,args | sort -r -k1 | ...
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1answer
39 views

How can I close httpd open conncetion? [closed]

I have a lot of open connection of httpd and ram usage, how can i solve this?
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19 views

YouTrack java process started to disappear on VPS

I had YouTrack installed on my VPS, and lately it just stopped working. Installation method I used is described here: ...
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1answer
53 views

init / inittab respawn (count number of times it occurs) [closed]

I added the following line in my /etc/inittab to respawn a program if it crashes. #test must always run. aa:2345:respawn:/home/pi/test/test Is there a way to know how many times the init/respawn ...
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35 views

kill tcp port binding by deleting proc/[0-9]/net/… in linux

I have a script to call syscall Kill the process that holds a certain TCP port in Linux (ubuntu). But even if I do that, sometimes the port still remains in /proc/[0-9]/net directory binding the port. ...
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123 views

Set CPU affinity for all processes of specific user with taskset

I have ubuntu server 14.04, and I'm wondering if there is any easy way to achieve this task. For example, I can already do this for single processes with taskset -pac 2 29435, but is there any way to ...
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19 views

Source of long running find process on server

I'm wondering where a long running find process on my ubuntu linux server (14.04 LTS) came from and what the meaning of it is. Here is the output of ps: 16915 ? SN 32:41 /usr/bin/find /tmp ...
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39 views

NUMA processor definition

NUMA, non-uniform memory access designates a symetric multi-processing system where processors are grouped into nodes, with each group sharing some level of memory, so that memory access on same node ...
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32 views

Odd entries in Debian Linux /var/log/auth.log

I have found some odd entries all of the sudden in my /var/log/auth.log files. They are showing up every 10-20 seconds or so. There isn't anything in cron that would do this, and I am at a loss of ...
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2answers
254 views

Killing Parent and Child processes on Remote with Powershell

I'm attempting to kill a parent process and it's child process (There will only be one child) on a remote computer. When executing this script (Which is part of a larger one) i get the following ...
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1answer
31 views

Is it possible to kill a process based on its environment, from the command line?

Scenario: Let's assume I have a script that spawns a few processes. There may be times when the script has to be aborted. Most times this is fine. However, sometimes one or two of the spawned ...
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19 views

Running and sleeping in top

I usually use top to get an idea of the server load before (and while) running a compute job. Recently my attention was drawn to the process state column. In particular I noticed that all Matlab ...
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71 views

Hundreds of zombie sh processes spawn then die

I have a few Ubuntu Server 14.04.03 LTS boxes that will occasionally spawn hundreds of zombie sh processes. This process spike will be picked up by the monitoring system, and send an alert. I found ...
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22 views

Know which file is related to a process execution

In Unix, with top I have an output similar to this: 13916 root 18 0 903m 129m 9936 S 51.4 0.1 3:07.01 php How can I know which file is this php process executing? For example: 13916 root 18 0 903m ...
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2answers
185 views

Pressing Ctrl-C stops bash script, but don't stop PHP script called by the script

I need to run a few scripts every few minutes. The logic was made in PHP, and it's working great. To keep things together I've made the bash script below, which also runs fine. #!/bin/bash ...
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2answers
282 views

top is only showing current user processes

Recently got a dedicated server running CentOS 6.7, we have ran updates and noticed that top is only showing processes for the current user. [myuser@server2 ~]$ top -b -n1 top - 20:19:20 up 1 day, ...
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27 views

Why upstart starts my processes in an inconsistent way

I'm debugging a strange issue with upstart managed jobs. I have a ruby web application which is started using passenger and I generate upstart configuration files using foreman The problematic ...
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1answer
55 views

Lot of duplicate sshd daemons getting created in Solaris

I have a Solaris server where I found lot of sshd services running: ps -ef | grep 23492 root 25449 23492 0 15:27:17 ? 0:00 /usr/sbin/sshd2 -oPidFile=/var/run/sshd2_22.pid -R ...
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23 views

Why when setting a process ppid to 1 will disown it?

When i write a shell script like below: # demo.sh somework & Then run it sh demo.sh.Use & will cause the demo.sh exit and make the somework's parrent PID be 1, the init. Then i exit my ...
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64 views

Sudden increase in my CPU usage during random moments(Win Server 2012)

At random times, no matter if I am online or not I see that my server having increased Process usage spikes, as you can see in the picture: So I go inside the Dashboard on the Server Manager, look ...
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166 views

In the output of ps(1) on OS X-like systems, what do processes listed in parentheses mean, and how do I kill them?

username@yosemite ~ % ps wwwaux | grep java username 48111 0.0 0.0 0 0 ?? ?E 11:54AM 0:00.00 (java) username 91673 0.0 0.0 2432772 508 s006 R+ 3:19PM ...
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37 views

logrotation process stdout and stderr windows

I have a service on windows that's running another process that prints many lines to its STDERR and STDOUT. I'm capturing those lines and redirect them to some log file. I would like to logrotate on ...
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1answer
183 views

Powershell: kill one window of a subset running under one process?

Using powershell can I kill/force close a single window (excel workbook) running under Excel without killing the whole process which closes all excel workbooks running under that same process ...
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31 views

Every process I start, apart from nginx, dies after a few hours on AWS EC2 Ubuntu instance

I'm new to ubuntu (coming from mac) and I'm trying to run a couple of java servers and a node server on an ubuntu Amazon EC2 instance. I run each server in its own screen session, and everything ...
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681 views

Monitoring processes/services by Zabbix by using SNMP

I try to monitor around 60 servers by using Zabbix 2.2 and SNMP. I'm able monitor a lot of values but I'm facing one issue relating to identification status of processes on linux servers. When the ...
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3answers
207 views

how to find proces which is pinging localhost

How can you find the process issuing ping to localhost? While it is not script, where the ping command can be simply grep from process table. I have used wireshark, but it is of no help to find out ...
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824 views

What is a fast, efficient method for threading rsync

I have a single root directory (on a NAS) that I need to backup to another server. The hierarchy of the directory is several layers deep and a majority of the data is composed of extremely large ...
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200 views

Kill process and child processes, not parent processes, not group

I need to kill a process and all of its subprocesses programatically. Killing the group is not an option because I do not want to kill the parent processes. Example: pid process 1 ...
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3answers
200 views

In server 2008 R2, if I run an app in administrator's mode, will child process still be in the same mode?

In server 2008 R2, if I run an app in administrator's mode, will the child process still be in the same mode? I raise this question because I suspect the child process from the app is not running in ...