Php uses curl for concurrent analysis to reduce the backend access time. Php uses the curl concurrent method to reduce the backend access time. the curl backend instance in this article describes how php uses the curl concurrent method to reduce the backend access time. For your reference, this article describes how to
Today, when learning Lucene, see the book that describes Elasticsearch,elasticsearch is a Lucene-based search server. It provides a distributed multi-user capability full-text search engine, based on the RESTful web interface, Elasticsearch is developed in Java. Now take a look at the steps I have to install Elasticsearch
Php curl simulates logon and obtains detailed details of data instances, curl details
PHP's curl () is highly efficient in capturing web pages and supports multithreading, while file_get_contents () is less efficient. Of course, curl extension must be enabled when curl is us
A deep understanding of the curl class can be used to simulate get, post, and curl downloads. The copy code is as follows :? PhpclassCurl {** get method to obtain the access address * @ paramstringurl the address to be accessed * @ paramstringcookiecookie storage address
As follows:
The code is as follows:
Class Curl {/** Get access to the specified address* @
PHP uses curl to perform a mock login to a website with a verification code, curl Verification Code
Many of the online simulation login programs, mostly through the service program Apache and other operations, get to the verification code displayed on the Web page, and then fill in and then post out, although it looks very friendly, but since the simulation login, after the log on the thing is not necessar
Curl command, curlCurl is a command line tool that supports multiple protocols. It sends network requests, obtains and extracts data, and displays the data on stdout.On the server side, using curl to check whether the request address returns data to determine whether the problem is nginx configuration or program service configuration (curl-I "...")!1. view the we
This article provides a detailed analysis of the curl class that can be used to simulate get, post, and curl downloads. For more information, see
As follows:
The code is as follows:
Class Curl {
/*
* Get access to the specified address
* @ Param string url the address to be accessed
* @ Param string cookie: The storage address of the cookie. If no cookie exists
Both the ELK and Shield 2.0+ are installed on 10.100.100.60 server 1, Elasticsearch installed on Shieldbin/plugin installation licensebin/plugin install SHIELD2, run E Lasticsearchbin/elasticsearch3, add an Admin user bin/shield/esusers useradd es_admin-r admin Enter password 123456 login es_admin 123456, You can see all the INDICES4, test whether users write to the page login http://10.100.100.60:9200/need to enter the user name and password es_admin
ElasticSearch-Basic Concepts
For articles translated by others, it is very important to master the following basic concepts for learning Elasticsearch. You can try to align the following concepts with MySQL (databases, tables, data rows, fields.
Basic Concepts
Elasticsearch has several core concepts. Understanding these concepts from the very beginning will be of
PHP uses curl concurrency to reduce back-end access time analysis, Curl backend
The example in this article describes how PHP uses curl to reduce the back-end access time. Share to everyone for your reference, as follows:
In our usual program will inevitably appear at the same time access to several interfaces, usually we use
As shown below:
Copy CodeThe code is as follows:
Class Curl {
/*
* Get method get access to specified address
* @param the address to be accessed by the string URL
* @param the storage address of a string cookie cookie, no cookie is sent
* @return string curl_exec () gets the information
* @author Andy
**/
Public function Get ($url, $cookie = ")
{
Initializing a Curl session
$
PHP uses curl to forge IP and source instances in detail, Curl Forge
This example describes how PHP uses curl to forge IP and source. Share to everyone for your reference. The specific analysis is as follows:
Fake IP source for PHP is a very simple thing, we just take advantage of PHP's curl can realize the function o
As follows:Copy codeThe Code is as follows:Class Curl {/** Get access to the specified address* @ Param string url the address to be accessed* @ Param string cookie: The storage address of the cookie. If no cookie exists, no cookie is sent.* @ Return string curl_exec () information obtained* @ Author andy**/Public function get ($ url, $ cookie = ''){// Initialize a cURL session$
As shown below:
Copy Code code as follows:
Class Curl {
/*
* Get way to access specified address
* @param the address to be accessed by the string URL
* @param the address of the string cookie cookie, without sending the cookie
* @return String curl_exec () information obtained
* @author Andy
**/
Public function Get ($url, $cookie = ' ")
{
Initialize a Curl session
$
1. Install Elasticsearch cluster1. Download elasticsearch-2.0.0.tar.gz, perform TAR-ZXVF elasticsearch-2.0.0.tar.gz decompression2. Modify CONFIG/ELASTICSEARCH.YML (be careful not to shelf the first letter with a space, followed by a space after the colon)If you want to configure the cluster to require two nodes on the Elasti
Reprint: http://www.infoq.com/cn/articles/anatomy-of-an-elasticsearch-cluster-part02Consensus-the importance of split-brain issues and legal votesConsensus is a fundamental challenge for distributed systems. It requires that all processes/nodes in the system must agree on the value/state of the given data. There are already many consensus algorithms such as raft, Paxos, and so on, mathematically proved to be OK. However,
Turn from: http://blog.c1gstudio.com/archives/1765
Logstash + Elasticsearch + kibana+redis+syslog-ng
Elasticsearch is an open source, distributed, restful search engine built on Lucene. Designed for cloud computing, to achieve real-time search, stable, reliable, fast, easy to install and use. Supports the use of JSON for data indexing over HTTP.
Logstash is a platform for application log, event transmission
The _cat parameter allows you to see some information about the cluster, such as whether the cluster is healthy, what nodes it has, and what the index is.Detecting Cluster HealthCurl Localhost:9200/_cat/health?v Description:
Curl
is a file transfer tool that works under the command line using URL syntax
9200
Access the port number of the cluster, which can be modified. Changes are generally not recommended through config
?conflicts=proceed "
The merge script is as follows:
#!/bin/sh
curl-xpost ' Http://192.168.1.101:9200/_forcemerge?
Only_expunge_deletes=truemax_num_segments=1 '6, there is no more general method.
have, use ES official website tool--curator tool. 6.1 Curator Introduction
Main purpose: To plan and manage the index of ES. Supports common operations: Create, delete, merge, Reindex, snapshot, and so on. 6.2 Curator Website Address
Http://t.cn/RuwN0oM
git
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