1. Create a folder named monitor in the webapps folder.
2 monitor to create a WEB-INF and SRC
3 New web. xml and classes in the WEB-INF
4. Web. XML content
5. The servlet accepted by write processing is shown below. As follows:
Import Java. io. ioexception;
If it is a request sent by curl, the value of the CPU usage is obtained and written to the cpu.txt file. If the user accesses this servlet through a browser, http: // localhost: 8080/monitor/recvinfo
Read the cpu.txt file and write the
Flex remote video monitoring new version of the viewing end, flex video monitoring
In the first version, only the preview is used.
I feel that FlexWeb is generally implemented based on the PC client. Because Socket is used for interaction with the background, the task has timed out for a long time, network disconnection, server disconnection, video connection disconnection, and many logic make it totally
Author: Liu Chao mentor: Professor KakaiDegree of application: PhD in Engineering: School of Environment and Surveying and mappingSubject major: Geodetic Surveying and Surveying engineering research direction: GNSS Disaster MonitoringChairman of the Defence Committee: GWO of the Institute:Original: LinkGPS deformation monitoring and its pseudo-satellite enhancement technology in mining area GPS and its pseudolite augmented technique for deformation
Android volume key monitoring and android Volume monitoring
Conclusion:
The following two methods can be used to obtain the volume key. During the test, we found that
When KeyEvent. KEYCODE_VOLUME_UP is held down all the time, Samsung's tablet counts to 200, and this event is not triggered;
Therefore, when KeyEvent. ACTION_DOWN is changed, a method is started to count the number of stop techniques of KeyEve
After installing the camera in some special environments, you can see that the monitoring screen is inverted. At this time, you can adjust the screen on the camera WEB interface. Log on to the ipc web page and clickSet>Camera>Display>ImageThe image options are as follows:Select according to your needs. This article takes Image selection as an example. The adjusted monitoring screen is as follows:
-c100000,200000}Note: The definition service is: The max_check_attempts parameter is recommended to be modified to 6 (default is 4), because this plug-in must run at least 3 to 4 times or more to be normal, read the data once and record in the temporary file, as follows:650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/7F/44/wKioL1cYaiLROoWTAAEACZkTARQ563.png "title=" 1.png " alt= "Wkiol1cyailroowtaaeaczktarq563.png"/>To check and reload the configuration file:Service Nagios checkconfig
Check_disk (on server)If normal, it will output a row of disk detection data, or may be error.cd/etc/nagios/conf.d/Vim 192.168.0.12.cfg (your IP address name) # Add the following: Define host{ use linux-server host_name 192.168.0.12 alias 0.12 address 192.168.0.12 } Define Service{Use Generic-serviceHOST_NAME 192.168.0.12Service_description Check_diskCheck_command Check_nrpe!check_diskMax_check_attempts 5Normal_check_interval 1}Continue adding servicesVim/e
useradd nagios-d/usr/local/nagiosScp-r/usr/local/nagios/[email protected] $DN:/usr/local/Scp/etc/xinetd.d/nrpe [email protected] $DN:/etc/xinetd.d/nrpeSSH $dn ' echo ' Nrpe 5666/tcp #nrpe ">>/etc/services"SSH $dn ' chown-r nagios:nagios/usr/local/nagios/'SSH $dn ' service xinetd restart 'echo "$DN is end configuring the Nagios ............. ..."Done5-3 If Logcheck/var/log/messages is configured, be sure to verify that/var/log/messages permissions are 7055-4 Adding a new cluster configuration fi
1. Add dependent Javamelody-core in the project maven Pom2. Add filter and listener to Web. xmlHow to add javamelody monitoring monitoring in a Web project.
CPUs or CPU cores in the system. You will see that there are multiple counters on this instance.System:processor Queue Length: Shows how many threads are waiting for a CPU to be used.steps:1. Turn on reliability and Performance Monitor: Enter Perfmon.exe in "execute".2. When open, select Performance Monitor.3. Press DELETE in the toolbar or click Xbutton to delete all performance counters. Then click +button to add the counter.4. In the Join Counter dialog box, enter the name of the computer yo
Run the following commands to install net-snmp quickly and securely.
Copy codeThe Code is as follows: yum install net-snmp
Yum install net-snmp-utils
First, use the yum command to install net-snmp and net-snmo-utils.Copy codeThe Code is as follows: rm/etc/snmp/snmpd. confVi/etc/snmp/snmpd. conf
Delete the default snmpd. conf file and write the following content.Copy codeThe Code is as follows: rouser sudu auth
"Sudu" is your authenticated user name. "auth" indicates read-onlyCreate the/var/
An exception occurred while submitting the business alarm order, and the page was not responded. After troubleshooting, the transaction was not committed or rolled back. If the operation status of the transaction is monitored in time
An exception occurred while submitting the business alarm order, and the page was not responded. After troubleshooting, the transaction was not committed or rolled back. If the operation status of the transaction is monitored in time
Preface:An error occurred w
# A simple configuration file for monitoring the local host# This can serve as an example for logging ing other servers;# Custom services specific to this host are added here, but services# Defined in nagios2-common_services.cfg may also apply.#
######################################## ################# Define a host######################################## ################Define host {Use generic-host // template usedHost_name localhost // define the
1 Structural Analysis
Reference: MSDN http://msdn2.microsoft.com/zh-cn/magazine/cc163466.aspx
WF Monitoring Reference below: WF allows multiple tracking services (that is, you can add multiple trckingservice in wrokflowruntime), allowing multiple tracking service to be added to the runtime to support different business requirements, the tracking service is responsible for specific implementation, But there is only one trace listener: The trace liste
In this scenario, I constructed a useful example without creating an index on the Sales_order table. As a result, monitoring will reveal more sequential scans (in database terms for table scans), which is a inefficient mechanism for retrieving data because it reads each row in the table. Sequential tuple reads-the number of rows that are read using sequential scans. There is a big difference between rows and tuples, but it doesn't matter here. To unde
This is just a function of the monitoring side of the overall script installserver ()
The specific script is as follows:
#!/bin/bash #this is Nagios server or client install Shell #at 2012/10/29 path= ' pwd ' Httppath=/usr/lo Cal/apache2 mysqlpath=/usr/local/mysql Nagiospath=/usr/local/nagios installserver () {Yum install-y
xinetd useradd-m Nagios groupadd nagcmd useradd-a-G nagcmd nagios useradd-a-G nagcmd Apache CD $path tar-zxvf nagios-3.2.
This article first summarizes the database monitoring system construction Those things, the next article describes the detailed deployment process1. Backgroundas the core IT business modules, the importance of the database is beyond doubt, the stable operation of the database is directly related to the availability, stability and efficiency of the application system. Therefore, to ensure a stable and efficient operation of the database, we need to fac
In the last two weeks, has been studying the development of monitoring software, although it is a simple version, but in this process, for the development of a monitoring software framework and process is really learning a lot of things, but also think that this knowledge is very difficult to read articles or books can learn to get, only himself to practice, I think I can slowly realize this is not easy in
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