Programming :: Check Server Load Via Php?
Mar 4, 2011
We have 7 webservers running in a cluster, and I have zenoss running which does monitor space, network, even performance, but I would like a nice small webpage that I could break into just a few rows of a table. I would like to be able to simple do a reload every 30/60 seconds, and just have the following;row1: server load, memory userow2: server load, memory useBefore the row, if the load > x change the css to make it red (so I could notice it), etc. The css, the refresh, etc. is all simple, I am jut wondering how I could go about getting the load and memory use from PHP.I could setup a bash script that could get the info and spit it to a file as a last resort, but curious if there was a more direct way.
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Jul 27, 2010
I am trying to make a script that can be used to check server load on a remote server and produces sound on our local machine, when server load exceeds a particular limit.1. I want to execute command uptime or uptime | awk '{print$10}'on the remote server and store the result in a variable(say x), and later use it in the bash script.
Bash Part
#!/bin/bash
x=$(/root/Desktop/exp)
[code]...
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Jul 28, 2011
my server get hanged when ever their is loading problem. i wanna a program to get cpu load and also when load get high from a specified load value it should restart service. is their is any programm or how to write that programm..
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Nov 23, 2010
i have centos 5 running with apache, mysql, php and phpmyadmin. phpadmin is working well but it is showing the following error on the page:- Cannot load mcrypt extension. Please check your PHP configuration.i just try to install mcrypt but it is asking for required dependencies libmcrypt.
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Nov 21, 2010
how the bash script should look to copy huge directory with multiple sub-folders to a new place place while checking load and stopping for several seconds if load reached lets say 3 or 4 ? I only know the simple command cp -r /dir/allfiles /dir/newplace However would like to copy over 30 000 files which will cause me a high load.
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Jan 17, 2011
I am new to scripting, would like to have a script that tests whether a directory exists on remote host & display the message accordingly. The remote hostname can be provided by means of file containing list of hostnames. Can use rsh for connecting to remote host.I tried with couple of scripts by searching google but didn't get desired result. Please help me, below is my efforts, $file contains list of hostnames.
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Aug 19, 2010
I want to put check menu & check list in utility dialog.i dont know how i do this
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Feb 10, 2010
sql statement. I am trying to check if there is such a value in the database.
Code:
string NewMovie = "ww";
string queryText ;
queryText = "Select * from movie_info WHERE movie_title = '"+ NewTitle +"'";
MYSQL *conn;
conn=mysql_init(NULL);
mysql_real_connect(conn,host,username,password,database,0,NULL,0);
[Code]......
return 0; The problem i am facing is how do i check if the value is found. I read up and found that a query will return a value of TRUE if the query is a success and a FAIL if there is an error. How do i call these values and then based the check on it?
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Jul 22, 2011
I have written a tiny script for kernel compilation, which call menuconfig and then compile the kernel. It is working fine. Now I like to test my environment and if it is shell menuconfig will be called and if X then xconfig will be called. How can I check the environment then?
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May 25, 2010
I need to check if $var is not start with 0
Code:
read var
if [ $var IS NOT START WITH 0 (or something like 006077) ];then echo 'Good'
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Oct 4, 2010
I have a RHEL5 machine having mysql5.0.22 is installed in it. i also installed java through "jdk-1_5_0_19-linux-i586.bin" package, and its version is 1.5.0_19. I am trying to check if any JDBC driver for Mysql Server is installed on my system . How can I do this? If any driver is already installed How can I get the file path for those driver files? is it comes along with jdk packages? As i am not a programmer, and does't know more about jdbc.
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Jun 7, 2010
After searching the forum I could not find a clear answer to my question so I am giving it a try...
I have installed a LAMP server with Postfix as mail server. The scripts send email as user www-data using the mail server on the same machine.
However, the email got rejected by external mail servers (failed reverse DNS check) so I setup a mail server that meets all needed requirements.
Now I would like to use this second server instead of the mail server on the LAMP server. I found that this could be done with changing sendmail settings in php.ini (I think).
However I am not sure how that will go: www-data is no actual user on the new email server (which requires authentication before sending). Do I need to create a new user on the email server or change the settings in php.ini to match an existing user?
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Aug 5, 2010
I need to find if, in a folder any directories exist, except a certain one named "mes croquis".What I am trying to say, is that the re already is a directory named "my croquis", which I have to ignore. IF any other directory appears, I have to archive them.I got everything so far, except the starting condition.In other terms , I am lookign for something like this:
IF anyDir EXIST AND name != "mes croquis"
do something
else
[code]....
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Apr 30, 2011
I've created (as a homework) to create as many folders as told but I still need to check if the variable is a number or not :
Code: #!/bin/sh
echo "Veuillez saisir un nombre"; read nmbr
nmbrf=$nmbr
while [ $nmbrf -gt 0 ]
do mkdir -p "foo$nmbrf"
nmbrf=`expr $nmbrf - 1`
echo "$nmbrf"
how do I check that nmbr is a number or something else?
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May 11, 2011
I have a file with one line. I want to check whether the first character is TAB or space, how can i do this.? using "cut" wont as it "bypasses the tab and space characters"
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May 15, 2011
have an application where from time to time I need to check the db for some value and run some functions to do some checks. is the best option do it as php daemon or cron job?Whatworried of cron job is the overalapping.
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Mar 25, 2010
script that will check if my log file is a certain size? EX: I want to limit the size of my rsync log to say 5MB, if that's true I would move it and create a new one.
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Apr 24, 2011
Is it possible to check if a pointer is deleted in C++ (using GDB)? For example:
Code:
a = new Thing();
b = a;
delete a;
// If all I have is the variable "b", how can I tell if it was deleted?
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Sep 23, 2010
i'm using c++ and Ubuntu and I need to write/copy some files to a directory chosen by the user of my system (the user can save it on any folder of any disk of the pc or other usb device). Before I do it, I need to know if there's space available on the disk. I cannot only check the result of write() function, the validation must be executed before I start to save or copy.
I was trying to use statvsf structure, but I only have the complete filepath (/home/lobinho/myDocs/), not the disk path. The statvfs() function only works with disk path (i.e. /media/KINGSTON ).
The source of my function:
Code:
int MyClass::availableSpace(string dst, ulong* availableSize) {
int result = ERROR;
try {
struct statvfs devData;
[Code]...
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Apr 26, 2010
I want to check if a MySQL db query will return an empty result - I first do this:
$query="SELECT * from <whatever" ;
$result=mysql_query($query) ;
$row=mysql_fetch_row($result) ;
Now how do I check if $row is empty or not? Will $row="" do the trick?
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Apr 12, 2011
Greetings EveryOne
how to check if buffer is empty in c?
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Apr 10, 2010
I'm writing a application which uses translates and I wonder how to check what has been prefix of it's installation to check where translation files are stored. I'm using cmake so maybe is there some preprocessor definition of installation prefix
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Aug 4, 2010
We are loading 100 + oracle tables using informatica. At the end of the run, we need to verify the informatica log to confirm the rows are loaded properly to target tables. There are so many detials included in the etllog. But,the part of the informatica log, linux script needs to look into look like as below -(vary for different table names. here, CMN_1740 is the table name.)
MAPPING> TM_6252 Source Load Summary.
MAPPING> CMN_1740 Table: [SQ_W_CASE_FS] (Instance Name: [SQ_W_CASE_FS])
Output Rows [1], Affected Rows [1], Applied Rows [1], Rejected Rows [0]
[code]....
1. The details of source load summary (source table name and the details -Output Rows [1], Affected Rows [1], Applied Rows [1], Rejected Rows [0]) should be written to a log. We need to check whether the affected rows is 0 or rejected rows > 0 for source load summary. In that case , script should write that to a log and exit
2. The details of target load summary (target table name and the details -Output Rows [1], Affected Rows [1], Applied Rows [1], Rejected Rows [0]) should be written to a log
3. We need to check whether the affected rows is 0 or rejected rows > 0 for target load summary. In that case, script should write that to a log and exit.
4.The above steps should be repeated for all set of tables mentioned in the etllog.
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Apr 12, 2010
I'm messing with a JTree, I need one that has checkboxes to check/uncheck options, and (later) textboxes to edit options....but for now, the checkboxes don't wanna play. Here's the source:
package Habitat.EnvCtrl;
import java.awt.BorderLayout;import MailPopper.hlprs.CheckBoxNode;
import java.awt.Dimension;
import java.util.Vector;
import javax.swing.JDesktopPane;
import javax.swing.JInternalFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeNode; .....
The rtree builds (albeit I have a superfluous extra checkbox in there I don't know where it comes from...) but I cannot check/uncheck any boxes.
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Nov 12, 2010
I'm using a linux server where nat server is running. Local user are connected from this server. So is there in tool that i can check that local user getting internet? or how can i check that a user connected from linux server using internet or where he visited?
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Mar 9, 2011
I would like to implement something when a server is offline for whatever reason. For example. I got my own DNS servers and webservers. I would like it if the users goes to www.somedomain.com and the server it is actually on is down for maint. or For whatever not able to respond. What can be done so that if the server isn't able to be contacted that it can point to either a another server or the dns somehow can display a page stating who to contact to report a problem or to let them know its down for maint. And can goto a site to check the status or whatever.
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Apr 28, 2010
We are using axigen with redhat
linux how to check if email server machine doing spamming.
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May 23, 2010
I'm building a script for my place of employment. The next step in it is checking what the user input was. Determining if they added a part in there or not. The script prompts for a hostname. Hostnames are localhost.localdomain. Now, I want the script to check to see if they put localdomain and if they did, not to add the domain to the /etc/sysconfig/network, but just what they entered. So say the user inputs:
[Code]....
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Jul 6, 2010
I have a large tab delimited text file, about 17gb. It only has 6 column. On column number 4, it is all numbers. Ranging from 1-1000. I want to count how many times each number occured. So the output I want is in 2 columns, first one is a number, second column is how many times it occured. I tried
head -n 1000 coverage | cut -f 4 | uniq -c
Didn't work for me, the first column returned is not unique.
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May 1, 2011
I have a directory called /data In this directory I have some files like abcejb.jar,12_ab_ejb.jar, shejb.jar, test I need a shell script like... 1st I want to check if there is any ejb file exists in the directory using some condition If ejb files exists I want to redirect the ejb files list to a file called list. Now I want to copy all the files in the list file to some remote system.
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