I. Overview Jstat is a lightweight gadget that comes with the JDK. Full name "Java Virtual machine Statistics monitoring Tool", which is located in the Java Bin directory, mainly using the JVM built-in instructions to The resources and performance of Java applications are monitored in real time on the command line, including the Heap size and garbage collection status. Visible,Jstat is a lightweight, JVM-
single, enable Excel macros, open a generated Nmon file:2.2 ZabbixZabbix now use more, its configuration ioPS monitoring template has ready-made, direct import can, the plot effect is as follows:2.3 CactiThis is not the introduction of CACTI,CACTI as an established tool, the deployment of documents online is more mature. Its ioPS template:Http://forums.cacti.net/about8777.htmlInstallation steps See:1. Unzi
iftop Tools OverviewToday saw a flow monitoring tools, feel good, on their own server installed a bit, record, stay after the need;In Unix-like systems, you can use top to view information such as system resources, processes, memory consumption, and so on. View network status You can use Netstat, nmap and other tools. To see real-time network traffic, monitor TCP/IP connections, and so on, you can use iftop;iftop is a real-time traffic
I have always used nethogs to monitor website traffic. I tried another software, so I found iftop, which is a good traffic monitoring software. It is also very convenient to install it on Ubuntu.
Open the terminal and enter the following command on the terminal:
Sudo apt-get install iftop
It is easy to use. Enter the following command:Sudo iftop
If you have multiple NICs, you can specify the NIC:Sudo iftop-I eth1
Official Website: http://www.ex-parro
In Unix-like systems, you can use top to view information such as system resources, processes, memory consumption, and so on. View network status You can use Netstat, nmap and other tools. To see real-time network traffic, monitor TCP/IP connectivity, and so on, you can use Iftop.What is Iftop?The iftop is a real-time traffic monitoring tool similar to top.Official website: http://www.ex-parrot.com/~pdw/ift
executions, including user%, sys%, wait% and idle%;5, Cpu_summ: The occupancy of each CPU in the execution time, which contains user%, sys%, wait% and idle%;6, Diskbsize: the transmission block size of each hdisk in the execution time;7, Diskread: Average reading of each hdisk;8, Diskwrite: The average write situation of each hdisk;9, Diskxfer: Every hdisk I/O per second operation;10. Jfsfile: This sheet shows the percentage of space that is being used in each interval for each file system11, N
to limited time, in the latter several blog, will detail the real-time priority process, static priority process.Introduced a half-day, process and thread, mainly to introduce two system monitoring tools and a process viewing tool.1, real-time system monitoring Tool Dstat,1DSTAT[-AFV] [options:] [Delay [Count]]-A: Dis
server, workstations, sub-labs, packet management, Unix Linux Server Remote batch operation mode, batch operation mode can be multi-threaded control unix,linux, Server Execution command, Get status, output command execution result, can realize large batch modification file, shut down, free hands, realize management automation. VNC GUI enables automatic login system, Windows Telnet interface can operate Windows system remotely and log on automatically. Core
: Displaying commonly used TCP statistics
–UDP: Displays some dynamic data for the monitored UDP interface and its current usage
More than that, of course, Dstat comes with a few plugins that extend its functionality to a great extent. You can view some of their usage by looking at the/usr/share/dstat directory, which are commonly used:
-–disk-util: Displays the busy state of a time disk
-–freespace: Displays the current disk space utilization
-–proc-count: Shows the number of program
the monitored UDP interface and its current usage
More than that, of course, Dstat comes with a few plugins that extend its functionality to a great extent. You can view some of their usage by looking at the/usr/share/dstat directory, which are commonly used:
-–disk-util: Displays the busy state of a time disk
-–freespace: Displays the current disk space utilization
-–proc-count: Shows the number of programs that are running
-–top-bio: Indicates the maximum block I/O p
: Displaying network statistics
–TCP: Displaying commonly used TCP statistics
–UDP: Displays some dynamic data for the monitored UDP interface and its current usage
More than that, of course, Dstat comes with a few plugins that extend its functionality to a great extent. You can view some of their usage by looking at the/usr/share/dstat directory, which are commonly used:
-–disk-util: Displays the busy state of a time disk
-–freespace: Displays the current disk space ut
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Supervisor is a process monitoring management tool under a UNIX-like operating system.
Installing Supervisor
Supervisor is written by Python and can be installed directly using Python's Package Installation management tool PIP (Python pack Index):
Copy the Code code as follows:
sudo pip install Supervisor
Configure Supervisor
The configuration file for Superv
Are you facing this situation: it is almost impossible to build a certain network cluster, but to process many different computers and closely track all these computers? What should you do if you are responsible for computers full of rooms and those who are responsible for using these machines? Sinfo may be the tool you are looking. The Freshmeat website is described as follows:
Sinfo is a monitoring
T
F5
Show tree structure
F6
Select the Sort method
[
F7
Reduced nice value, run priority setting
]
F8
Widening the nice value, with reducing the opposite
K
F9
To pass a signal to a process
Q or CTRL + C
F10
End Htop
The glances of process management
With Htop, the tool should be installed on its
1. Questions: recently in the real-time synchronization of the log, before the online is done a single part of the online log stress test, Message Queuing and client, the machine is no problem, but did not think of the second log, the problem came: a machine in the cluster top see the load high, the cluster of machine hardware configuration, the deployment of software are the same, but only this one load problem, the initial speculation that there may be hardware problems. at the same time, we
Article Title: monit, a tool for linux system monitoring. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Monit is a tool used to monitor and manage processes, files, directories, and devices in the system. When the specified
1. Overview
Monitoring is an indispensable part in checking system problems or optimizing system performance. The operating system monitoring tool monitors the usage of operating system resources and indirectly reflects the running status of each server program. The analysis based on the running results can help us quickly locate the scope of system problems or p
The Linux system administrator should know the monitoring tool. if you want to monitor the performance of the Linux server, try the built-in shell commands and some additional tools. Many Linux distributions have tons of monitoring tools. These tools provide measurable information for observing the activities of the system and finding the resulting system...
The
Linux system monitoring, diagnostic tools Tophttp://my.oschina.net/leejun2005/blog/157910Linux system Monitoring, diagnostic tool IO waithttp://my.oschina.net/leejun2005/blog/355915Introduction to the Lsof usage of Linux system monitoring and diagnostic toolshttp://my.oschina.net/leejun2005/blog/153584Analysis and solu
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