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This article mainly shows you "Nginx how to view the number of concurrent links", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "Nginx how to view the number of concurrent links" this article.

First, view through the interface

When viewing through the web interface, Nginx needs to open the status module, that is, when installing Nginx, add

-- with-http_stub_status_module

Then configure Nginx.conf and add the following to the server:

Location / status {

Stub_status on

Access_log / usr/local/nginx/logs/status.log

Auth_basic "NginxStatus"

}

After reloading Nginx after configuration, we can visit http://localhost/status through the browser to view:

Nginx load command

/ usr/local/nginx/sbin/nginx-t # detects configuration files for errors

/ usr/local/nginx/sbin/nginx-s reload # reload configuration file

View the result description:

Active connections / / the number of active connections currently being processed by Nginx.

Server accepts handledrequests / / handled a total of 5823 connections, successfully created 5823 handshakes, and processed a total of 7806 requests.

The number of Header messages read to the client by Reading / / nginx.

The number of Header messages returned to the client by Writing / / nginx.

Waiting / / when keep-alive is enabled, this value is equal to active- (reading+writing), which means that Nginx has finished processing the resident connection waiting for the next request instruction.

Check through the command

View command

$netstat-n | awk'/ ^ tcp/ {+ + S [$NF]} END {for (an in S) print a, S [a]}'

Result

TIME_WAIT 17

ESTABLISHED 3254

LAST_ACK 236

FIN_WAIT_1 648

FIN_WAIT_2 581

CLOSING 7

CLOSE_WAIT 4916

The results show that

CLOSED / / Connectionless is active or in progress

The LISTEN / / server is waiting for an incoming call

SYN_RECV / / A connection request has arrived, waiting for confirmation

SYN_SENT / / the application has started, open a connection

ESTABLISHED / / normal data transfer status / current concurrent connections

FIN_WAIT1 / / the app says it's done.

FIN_WAIT2 / / the other side has agreed to release

ITMED_WAIT / / wait for all groups to die

CLOSING / / both sides try to shut down at the same time

TIME_WAIT / / the other side has initialized a release

LAST_ACK / / wait for all groups to die

The above is all the contents of the article "how to check the number of concurrent links in Nginx". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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