golang monitoring

Performance monitoring-SQL statement monitoring Analysis tableAnalyze table tablename compute statistics for all indexes;Analyze table tablename compute statistics for all indexed columns;Analyze table tablename compute statistics for table; Monitoring case waiting Select event, sum (decode (wait_time, 0, 0, 1) "Prev ",Sum (decode (wait_time, 0, 0) "curr", count

Monitoring IntroductionMonitor cacti (RRDtool) drawing monitors network device traffic to show historical data functionsNagios Monitoring Service Status disk memory does not record data at a glance you can write your own scriptZabbixCacti installationRPM-IVH http://www.lishiming.net/data/attachment/forum/epel-release-6-8_32.noarch.rpmYum Install Epel-releaseYum install-y httpd php php-mysql mysql mysql-serv

1.PV, what is UV?UV: Independent visitors, each independent internet computer as a visitor, the number of visitors to the site within one dayPV: Traffic, page views or clicks, users record once per visit2. Statistics PV and UV according to Nginx's access logUV based on access to IP to get backawk ' {print '} ' Access.log |Sort |uniq-c | Wc-lPV is counted according to the URL visitedawk ' {print $7} ' access.log|wc-l3. Get PV and Uvs in shell scriptsvim/etc/zabbix/shell/monitor_website.sh#!/bin/b

This is a creation in Article, where the information may have evolved or changed. Friends who have worked with VS or Eclipse must be on the left column (or may be on the right or bottom or hidden) Engineering Directory Memory Party was fresh. Especially when there are a lot of dependencies on packages and libraries, the directory structure is more complex. In fact, this is not a big problem. The nature of being familiar with your project adapts to this structure. But when you go to see some c/cp

This is a creation in Article, where the information may have evolved or changed. Saturday should be Hoterran invited, let me spit out the slot for Erlang and go, so while in Sunday, casually sprayed a few words, first do a Golang advertisement: Golang Online QQ Group: 259718627The first language I used was Java and Python, and I always had a crush on Python, and I liked the feeling of simplicity and effici

This is a creation in Article, where the information may have evolved or changed. Preface Errors and exceptions are two different concepts that are very easy to confuse. Many programmers are accustomed to seeing all anomalies as errors, without distinguishing between errors and exceptions, and, even if exceptions are thrown in the program, they are caught and converted into errors in a timely manner. On the surface, the idea of everything being wrong is simpler, and the introduction of exception

In the Ulipad code Editor to do a support Golang plugin, this file is plugin required mclassbrowser.py file part of thegolangparse.pyImportRedefparsefile (filename): Dict= {'Import':[],'struct':{},'func': []} in_import=False Lines=open (filename). ReadLines () forLineninchRange (0, Len (lines)): Line=Lines[linen].lstrip () match= Re.match (r'import\s+ (\w*\s*) "(\w+)"', line)ifMatch! =none:dict['Import'].append ((Match.Groups () [1], linen))elifRe.mat

1. Download the Golang to golang.org and install it.2. Install Sublimetext, open and press CTRL + ' Open command line, enter the following:Import Urllib2,os; Pf= ' Package control.sublime-package '; Ipp=sublime.installed_packages_path (); Os.makedirs (IPP) if not os.path.exists (IPP) else None; Urllib2.install_opener (Urllib2.build_opener (urllib2. Proxyhandler ())); Open (Os.path.join (IPP,PF), ' WB '). Write (Urllib2.urlopen (' http://sublime.wbond.

Taskset-c 1./wrk-c1-t1-d30 Http://localhost/hellowrk+nginx (HelloWorld module)sudo taskset-c0sbin/nginx nginx:cpu: the%WRK:CPU: $%Running 30s Test @ http://Localhost/hello 1Threads and1connections Thread Stats Avg Stdev Max+/-Stdev Latency the.69us420.93us -.51ms99.85%Req/sec -.00k1.50k the.56k93.68%392990Requestsinch -.00s,318. 17MB Read Requests/SEC:13099.88Transfer/SEC:Ten. 61MBwrk+Nodejs sudo taskset-C0Nodejs nodejs_httpserver.js Running 30s Test @ http://Localhost/hello 1Threads

Multipart/form-data, as the name implies, can upload multiple form-data and split it with separators for file uploads.1. HTTP Multipart/form-data Request samplePost/handle http/1.1host:localhost:8080Connection:keep-alivecontent-length:182537Cache-control:max-age=0Content-type:multipart/form-data; boundary=----Webkitformboundarywddae6hxfa4nl2igaccept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8Accept-encoding:gzip, deflate, BRaccept-language:zh-cn,zh;q=0.9

Golang Language Introduction and InstallationThe go language is the open-source programming language that Google released in 2009, which uses go to compile programs that are comparable to C or C + + code, and are more secure and support parallel processes.This tutorial explains the development environment for installing the Go language on WindowsFirst go to the Go language Chinese community address: https://studygolang.com/After downloading the Go lan

the sake of simplifying the language, most APIs in the go language assume that the string is UTF-8 encoded. Although Unicode characters are supported in the standard library, they are actually less used.Byte.gopackage mainimport"fmt"func main() { varbyte for b =0;b177;b++{ fmt.Printf("%d %c\n",b,b) }}Rune.gopackage mainimport"fmt"func main() { // byte => uint8 // rune => int32 "golang你好" fmt.Println(len(s)) 0 forrange s {

When we use Golang json to marshal a struct, the non-exported members of the struct will not be able to be accessed by JSON, that is, the result of JSON encoding will not appear (that is, lowercase members cannot export).This is due to a technical problem: the name of the member in the Golang struct is not accessible if it starts with a lowercase letter, that is, JSON cannot access the member that begins wi

This article illustrates the method of Golang and PHP output Excel. Share to everyone for your reference, specific as follows: Previously entered Excel when UTF8 is always garbled or other ways to UTF8 converted to GBK to show, oh, is actually output CSV, and then the group of friends that need to UTF8 BOM Excel to normal identification UTF8, today tested a bit, very cool, than previously saved several lines of code .

Install Daemonize Install git environment Yum Install Git-y Get Daemonize git clone git://github.com/bmc/daemonize.git Install Daemonize CD Daemonize./configureMake make install See if Www.111cn.net is installed Daemonize-v Performing the Golang daemon through daemonize You need to package your Golang program for the executable file (go build) and execute it through daemonize to implement the dae

The example in this article describes the use of a For loop statement in the Golang language. Share to everyone for your reference. The specific analysis is as follows: A For loop is used to traverse an array or a number. There are also byte and rune two ways to iterate through a string with a For loop. The first is byte and the second is rune. Copy Code code as follows: Package Main Import ( "FMT" ) Func Main () { S: = "ABC K

When you use Golang for concurrent programming, when you start a new goroutine asynchronously, the main goroutine does not know if the other goroutine is finished, and once the main goroutine exits, all the goroutine exits. Therefore, you need to control the main goroutine exit time, there are the following methods: (1) time. Sleep () More brutal, not reliable, is to let the main goroutine more run for a while, the actual is not sure whether the oth

Recently, when combing the company's services, decided to pull the basic components out of service. Because the company has a variety of language development services, decided to use thrift to resolve cross-language communication. Start a server Thrift's support for Golang is good, and the official package provides a server base class and a simple service simple_server.go. You can implement the server to do authentication and other statistical opera

The example in this article describes the two methods of calling RPC Golang. Share to everyone for your reference, specific as follows: Golang RPC is invoked in two ways, one in the RPC example: Copy Code code as follows: Package Main Import ( "Net/rpc" "Net/http" "Log" "NET" "Time" ) Type Args struct { A, B int } Type Arith int Func (t *arith) Multiply (args *args, reply * ([]string

The example of this article describes the Golang image image processing method. Share to everyone for your reference, specific as follows: Golang processing picture is quite simple, I was too functional quite simple, not a thumbnail method. Copy Code code as follows: Package Main Import ( "FMT" "OS" "Image" "Image/color" "Image/draw" "Image/jpeg" ) Func Main () { F1, err: = OS. Open ("