hbase performance monitoring

Linux provides a very good file Virtual System (/proc) to monitor system performance. The/proc file virtual system is a mechanism used by the kernel and kernel module to send information to processes. It exists in the memory instead of the hard disk. The main functions of the/proc file virtual system include process information, system information, CPU information, load information, and system memory information. 1.

8649239.2. 11.71 }Modified to:/**/239.2. 11.71 8649239.2. 11.71 }2. Configure gmetad.confVim/etc/ganglia/gmetad.confData_source "My cluster" localhostModified to:Data_source "My Cluster" 192.168.10.128:86493. Restart Service required:/etc/init.d/ganglia-Monitor Restart/etc/init.d/Gmetad restart/etc/init.d/apache2 restartIf you encounter a situation where apache2 cannot be restartedVim/etc/apache2/apache2.confFinally add a sentence ServerName localhost:80 can.4. Now you can access Gnglia webin

I was inspired by a post today and found that you can use the Windows Performance Monitor to monitor basically all of the system resources, the following is the tutorial:Performance Monitor location in Control Panel-Administrative ToolsWhen opened, the default is a CPU-occupied monitoring, below to add hard disk idle time to do the example1: Monitor graph above right-click Add counter2: Then find the Physic

Tags: sum statement oracle nbsp SQL statement monitor best dia user--oracle Common Performance Monitoring SQL statements--1SELECT * from SYS. V_$sqlarea WHERE disk_reads > 100; --2 waiting for the monitoring caseSELECT EVENT,SUM (DECODE (wait_time, 0, 0, 1)) "Prev",SUM (DECODE (wait_time, 0, 1, 0)) "Curr",COUNT (*) "Tot"From v$session_waitGROUP by EVENTORDER by 4

detect which function occupies a large amount of CPU time, thus effectively changing the program. Iii. Exercise 2) implement a simple sieve methodOf Eratosthenes) to calculate all prime numbers less than N. The main data structure of this Program is an N-Bit Array, and the initial values are true. Every time a prime number is found, the multiples of all the prime numbers in the array are set to false. The next prime number is the next real bit in the array. Answer: The following C program impl

Introduction to the previous chapterWebServerApacheThe architecture and principlesApacheInstallation (LinuxAs follows: Http://www.cnblogs.com/fnng/archive/2012/08/30/2662984.html So this section will share someApachePerformance monitoring. Monitor performance through server-status in Linux To monitor Apache performance, we need to modify the confi

1. OverviewMonitoring, is an integral part of checking system problems or optimizing system performance. Monitoring the usage of operating system resources through the operating system monitoring tool, which indirectly reflects the operation of each server program. Based on the analysis of running results, we can quickly locate the system problem range or

(Paging file), the path name is C \ Pagefile.sys, the default is hidden. The operating system transparently uses paging file to store data, and application is unable to control and perceive whether the data is stored in physical memory or in virtual memory, that is, the operating system decides to use physical memory, or paging file to store cached data. In general, monitor the use of memory resources at the Windows level by Performance Monitor. 1,

Sysstat The sysstat package contains utilities to monitor system performance and usage activity. sysstat contains varous utilities, common to collect commercial unixes, and tools you can schedule via cron to collect and historize performance and activity data. Http://sebastien.godard.pagesperso-orange.fr/features.html Download and install from the above site Including iostat (1) mpstat (1) pidstat (1)

Performance monitoring: The introduction of performance monitoring before the need to know the bottom line, then monitor the CPU performance of the bottom line is what? Usually we expect our system to reach the following goals: CPU utilization, if the CPU has 100%

First, glances:glances is a very good cross-platform performance monitoring tool that provides CPU, CPU queue, memory, virtual memory, network, I/O, and the list of processes that most occupy the server's resources.Indicator monitoring information, and at run time depending on the resource usage of different color labeling its importance, very intuitive, the foll

 jvm--performance monitoring and fault handling toolsHotspot virtual machines provide a number of virtual machine runtime debugging tools that allow developers to monitor and optimize the performance of virtual machines and applications while the app is running.JPS:JVM Process Status ToolDisplays all the hotspot virtual machine processes within the specified sy

The Nmon is a system administrator-oriented tuning and benchmarking tool that can be used to display performance data about the following: Processor Memory Internet Disk File system Network File System (NFS) The process that consumes the most resources Resources Power Micro-Partitioning One of the places I really like about this tool is that it's completely interactive and can help Linux users or system ad

Overview When the system bugs need to locate the problem, knowledge, experience is the key foundation, the data is the basis, the tool is the use of knowledge processing data means. The data mentioned here include: Run log, exception stack, GC log, thread snapshot (threaddump/javacore file), heap dump Snapshot (heapdump/hprof file), etc. Using the appropriate virtual machine monitoring and analysis tools can accelerate our ability to analyze data and

Topics on the Python Application monitoring platform First of all, this is not a monitoring framework for everyone's business, I was in the last company, my department's monitoring framework ... When we first entered the field, the Nagios and cacti were used for monitoring. Two very powerful

Title: VC compilation SNMP for Windows performance monitoringAuthor: itdefLinks: http://www.cnblogs.com/itdef/p/4003599.htmlWelcome Reprint please keep the text complete and indicate the sourceThere are several ways that Windows performance monitoring can be used:One, your own C + + call API. To obtain such as 1, process idle and compute time comparison calculati

Guide This article will introduce a very useful tool--netdata, which is a real-time Linux performance monitoring tool, for an open source tool, I have a translation of its English documents, the level of limited, there are translation errors in the place to welcome everyone to point out, I hope this article to help you, thank you. NetdataReal-time perfor