weblogic 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

This article reads the reading notes for the deep understanding of Java Virtual Machine-JVM advanced features and best practices, and it organizes the performance monitoring and Troubleshooting section of the virtual machine.About the two parts of the guide map or hope that you can personally test the experience, there are a lot of articles on the Internet, here are excerpts from several individuals think good articles for reference: Jstat/ji

file system Disk Adapter Network I/O speed, transmission, and read/write ratios Page space and page speed CPU and AIX specification The process that consumes the most resources IBM HTTP Web Cache User-defined Disk groups Computer details and resources asynchronous I/O, only for AIX Workload Manager (WLM), available only for AIX IBM totalstorage®enterprise Storage Server® (ESS) disk, only available for AIX Network File System (NFS) Dynamic LPAR (DLPAR) changes, only ava

"Turn" original source: ? tecmint-kuldeep Sharma??? Translation Source: Linux story- cold weather ??? Welcome to share the original to Bó Lè headlines in terms of monitoring system resources, system performance, and usage activity, Sysstat is indeed a handy tool. Sysstat packages are used more or less in our everyday basic tools . It also provides a tool that can be scheduled to run with Cron to colle

[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

swpd freeFrom the above data you can see the points: Context Switch (CS) is much higher than interrupts (in), which means the kernel has to switch processes back and forth; Further observation shows that system time (SY) is very high and user time (US) is low, plus a high-frequency context switch (CS), indicating that a large number of system calls are being invoked by the running application; Run Queue (R) is above 14 threads, according to the hardware configuration of thi

to the information currently crawled to further analysisSecond, JVISUALVMThe JDK comes with a JVISUALVM tool, which is used to monitor the CPU, memory, thread, and so on of the Java Runtime program. and monitor Java programs in a graphical way with remote monitoring capabilities.Pre-preparation1, upload tomcat to the virtual machine, WebApps under the existence of Prefteach package2, monitoring the JVM bef

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

Monitors the servers built on the linux operating system platform, including many aspects, here, I will summarize several linux monitoring tools and their installation and usage through network learning. 1. phpSysinfo [root @ localhost ~] #Llphpsysinfo-3.0.14.tar.gz-rw-r -- 1rootroot470084Oct1718: 16 phpsysin ForLinux operating systemThe monitoring of servers on

NETXMS 2.0.6 released, updated as follows:-Fixed random server crash If ODBC database driver is used-Fixed incorrect reading of long text fields by MS SQL database driver-Fixed issues: #1052, #1063For more information, see: Changelog: http://www.netxms.org/download/NETXMS is a new, fast-growing system monitoring tool that is released under the GPL2 license. It can be used to monitor the entire IT infrastructure (Tengyun technology ty300.com), from SNM

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

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: Display cdngy-C: Displays statistics of CPU perf

Java virtual machine performance monitoring and troubleshooting tools, virtual machine troubleshooting 1. jdk command line tool 1) jps: Virtual Machine Process status Tool Jps [option] [hostid] Main parameters: 2) jstat: Virtual Machine statistics monitoring tool Jstat- Main parameters: For example, if the gc information of process 8675 is queried twice every 8

large, you may need to add-j-xmx512m This parameter specifies the maximum heap memory, which is jhat-j-xmx512m-port9998/tmp/dump.dat. Then you can enter the host address in the browser: 9998 viewed:4. Jstat (JVM Statistical monitoring tool)Jstat [generaloption | outputoptions vmid[interval[s|ms] [count]]Vmid is the Java Virtual machine ID, which is generally the process ID on the Linux/unix system. Interval is the sampling time interval. Count is the

1. QuestionsOutOfMemoryError: Insufficient memory;Memory leaksThread deadlockLock Competition (lock contention)Java consumes too much CPU2. Java Common Health ToolsJPS (Java Virtual Machine Process Status tool) monitors JVM process state informationUse format:JPS [Options] [HostID]-M: output parameters that pass in the Main method-L: Displays the fully qualified name of the main class or Jar-V: Displays the parameters specified for the JVM virtual machineJstack : View the thread stack informatio

[O M engineer _ 01] 20 built-in monitoring tools for Linux systems: top workers often have server performance problems during O M, such: i/O, CPU, memory, network and other bottlenecks, so the system O M, can not sleep? The following tools are helpful for refreshing your mind ~ (@ ^ _ ^ @)~ (1) If top is written in front, here Rocky wants to clarify one point,

[O M engineer _ 02] 20 built-in Linux system monitoring tools: vmstat and netstat. This article is the second article and the first article of O M engineer on the road. See: [O M tips _ 01] 20 built-in monitoring tools for Linux systems: top gossip, reading and writing O ~ (2) If vmstat is written in front, here Roc

Linux top commands for monitoring and diagnosis tools Directory (1) system and task statistics:(2) process and cpu statistics:(3) memory information of the last two behaviors:How does one calculate the actual number of available memory for a program?How does one calculate the number of memory used by a program of 3.2?3.3 How can I determine whether the system has insufficient memory?3.4 difference between b