best server monitoring tools

A fully running Linux system consists of many subsystems (introduction, Cpu,memory,io,network, ...). ), monitoring and evaluating these subsystems is part of the performance monitoring. We often need macroscopic view of the whole system state, also need microscopic look at the operation of each subsystem. Fortunately, we don't have to reinvent the wheel to monitor these subsystems with the

Use of monitoring tools in percona-toolkit series 1. pt-deadlock-logger Function introduction: Extract and record mysql deadlock Information Usage: Pt-deadlock-logger [OPTION...] SOURCE_DSN Collect and save the latest deadlock information on mysql. You can directly print the deadlock information and store the deadlock information to the database, the deadlock information includes the

A fully running Linux system consists of many subsystems (introduction, Cpu,memory,io,network, ...). ), monitoring and evaluating these subsystems is part of the performance monitoring. We often need macroscopic view of the whole system state, also need microscopic look at the operation of each subsystem. Fortunately, we don't have to reinvent the wheel to monitor these subsystems with the

JDK itself comes with a lot of practical tools. The following are commonly used:1. JPs: displays all Virtual Machine Processes-Q: only ID numbers are listed.-M: ID, primary class, and parameters passed to the primary class-L: ID and full name of the main class-V: ID, primary class, and complete VM startup parameters 2. jstat: Virtual Machine statistics monitoring Reference: http://blog.163.com/yangshuo_qq

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[O M personnel? Why? 01] 20 built-in monitoring tools in Linux: is the top person in O M? Slave 32? Leo? Why does the male reading Qi Shi Jie (shu? /O, CPU, memory, network and other bottlenecks, so the system O M, can not sleep? The following tools are helpful for refreshing your mind ~ (@ ^ _ ^ @)~... [O M personnel? Why? 01] 20 built-in

established# View the socket that established the connectionRecv-q send-q Local address:port Peer address:port0 0 192.168.8.46:59073 60.2.235.195:61002timer: (keepalive,60min,0)0 0 192.168.8.46:52996 112.95.243.28:http0 0 192.168.8.46:51066 128.121.22.144:http0 0 192.168.8.46:38547 112.95.240.222:http0 0 192.168.8.46:49295 74.125.71.154:http0 0 192.168.8.46:46500 10.14.22.26:61300timer: (keepalive,48min,0)[Email protected]:~> sudo/usr/sbin/ss-l # shows all the listening socketsRecv-q send-q Loc

When the system gets slower and slower, you need to have dual eyes staring at your machine's CPU and memory and other hardware information to find out the real culprit. This article recommends five system monitoring tools under Ubuntu to keep you Vigilant.Indicator-SysMonitor Indicator-SysMonitor is simple but runs well. Once installed and started running, the CPU and memory usage can be displayed on the t

activity for these active hosts Display filters for TCP, UDP, and other protocols that allow you to see the traffic you're interested in Log records Supports Ethernet, FDDI, ISDN, SLIP, PPP, and loopback interface types A native socket interface built into the Linux kernel that can be used in a wide range of supported NICs Full screen, menu driven operation To installUbuntu and its derivative version sudo apt-get install iptraf Arch Linux and its derivativ

Real-time traffic monitoring tools, monitoring TCP/IP connectivity, etc., the disadvantage is no reporting function. Must be root to run.Parameters:-I set the monitoring network card, such as: # Iftop-i eth1-B displays traffic in bytes (default is bits), such as: # Iftop-b-N Causes the host information to display IP di

During O M, people often experience server performance problems, such as I/O, CPU, memory, and network bottlenecks. So how can system O M be done? The following tools are helpful for refreshing your mind ~ (@ ^ _ ^ @)~ (1) Top Here, Rocky wants to clarify one point, and believes that the best practice of top is: "Find the process that consumes the most CPU resources" After finding it, press [p] and forc

("%Y-%m-%d %h:%m:%s ") Deflog (E): content=human_time () +e.__str__ () + ' \ n ' withopen (' logs.log ', ' a ') asf: f.write (content) defcalculate (username,day): "" "Analysetoday ' Slog,ifkeyword (' Linkdoc ') inwin_title, addthetimetoworktime.andreturnwork_time "" " #selectpassedusername ' slogsql_helper= mysql () sql= ' selecttime_stmp,win_titlefromqc_worklog whereuid=%sanddate=%sorderbytime_stmp ' logs=sql_helper.query (sql, (username[0],day)) #calculatethecurrentuser ' Sworktimework_tim

Tags: property add database Eve lis Man from fill DBNThis article belongs to the managing SQL Server AlwaysOn series articleObjective: The previous sections mentioned how to do general management of AlwaysOn, and this section and the next section specifically explain and demonstrate "monitoring". Managing and monitoring These two words are confusing in many cases

Linux system monitoring and diagnostic tools-lsof usage Overview 1. lsof introduction lsof is a very practical system-level monitoring and diagnostic tool in linux. It means List Open Files. It is easy to remember that it is a combination of "ls + ~It can be used to list the File Information opened by various processes. Remember: "Everything is a file" in linux,

connection interrupt request, or confirmation of a previous connection interrupt requestFin-wait-2: Waiting for connection interrupt request from remote TCP www.2cto.comClose-wait: Waiting for a connection interrupt request from a local userCLOSING: Waiting for remote TCP to confirm connection interruptionLast-ack: Waiting for acknowledgement of the original connection interrupt request to the remote TCPTime-wait: Wait enough time to ensure that the remote TCP receives a connection interrupt re

capacity of Eden District 88.2072462755091% used # Eden area usage from Space: # s Urvior1 Zone capacity = 71303168 (68.0MB) # Survior1 area capacity used = 3952576 (3.76947021484375MB) # Surviror1 zone used Situation free = 67350592 (64.23052978515625MB) # Surviror1 area remaining capacity 5.543338551240809% used # Survior1 area use proportional to Space: # Survior2 Zone capacity = 71303168 (68.0MB) # Survior2 area capacity used = 0 (0.0M B) # Survior2 area Use

A practical perspective on the world of Virtual machine memory management.First, the command-line tools of the JDKThe 1.JPS (JVM process Status tool) virtual machine processes health tools.Displays all of the hotspot virtual machine processes in the development system.Functionality is single, but most other JDK tools need to enter the Lvmid it queries to determine which virtual machine process to monitor. F

　　Log tools for monitoring CPU and memory Linux Tools: Download Address: Get_cpu_mem_info_sh.rar How to use: Download the file and upload it to the/tmp directory after decompression. Run CD switch to/tmp directory. Perform: Nohup Bash get_cpu_mem_info.sh The tool generates a log file in the/tmp directory that records the CPU and memory usage of the real-

What Q:qmonitor is. A:qmonitor is a professional database monitoring platform software for Oracle and MySQL. According to the user set up timely and effectively to the database of the abnormal alarm to facilitate users to see a variety of real-time state curve indicators, and monitoring, performance data statistical analysis, from the transport to the decision-makers from the perspective of multiple levels

PHP Implementation Monitoring Varnish cache server Status, PHP monitoring varnish cache When varnish and website deployed on the same server, we can not log on to the server at any time to see varnish hit rate, did not expect the Great God has written out, today to share to