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Coletamos logs do Nginx usando o nginx-clickhouse, enviamos ao Clickhouse e exibimos no Grafana

Eu sou da Luxoft. Este artigo discutirá o projeto nginx-clickhouse , que lerá os logs do nginx e os enviará para o clickhouse. Para visualizar a análise de log, existe um painel para o Grafana.


Instale o nginx, clickhouse, grafana da maneira padrão.


Todos os pacotes estão instalados no mesmo servidor.


Página Nginx-clickhouse no github


Instale o pacote rpm nginx-clickhouse


yum -y install yum-plugin-copr yum copr enable antonpatsev/nginx-clickhouse-rpm yum -y install nginx-clickhouse systemctl start nginx-clickhouse

Como um emulador do serviço HTTP, usamos mockify.


Instale o pacote mockify rpm


 yum -y install yum-plugin-copr yum copr enable antonpatsev/mockify-rpm yum -y install mockify systemctl start mockify

Para nginx-clickhouse, log_format tem o seguinte formato.


 log_format main '$remote_addr - $remote_user [$time_local] "$request" $status $bytes_sent "$http_referer" "$http_user_agent"';

Configuração geral do nginx:


 user nginx; worker_processes auto; worker_rlimit_nofile 40960; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; events { use epoll; worker_connections 1024; multi_accept on; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" $status $bytes_sent "$http_referer" "$http_user_agent"'; access_log /var/log/nginx/access.log main; sendfile on; tcp_nodelay on; tcp_nopush on; keepalive_timeout 65; include /etc/nginx/conf.d/*.conf; open_file_cache max=200000 inactive=20s; open_file_cache_valid 30s; open_file_cache_min_uses 2; open_file_cache_errors on; }

Configurações de host virtual:


vhost1.conf:


 server { listen 80; server_name vhost1; location / { proxy_pass http://127.0.0.1:8001/200; } }

vhost2.conf:


 server { listen 80; server_name vhost2; location / { proxy_pass http://127.0.0.1:8001/200; } }

vhost3.conf:


 server { listen 80; server_name vhost3; location / { proxy_pass http://localhost:8001/304; } }

vhost4.conf:


 server { listen 80; server_name vhost4; location / { proxy_pass http://localhost:8001/401; } }

vhost5.conf:


 server { listen 80; server_name vhost5; location / { proxy_pass http://localhost:8001/500; } }

Adicione hosts virtuais ao arquivo de hosts:


 cat /etc/hosts 127.0.0.1 vhost1 127.0.0.1 vhost2 127.0.0.1 vhost3 127.0.0.1 vhost4 127.0.0.1 vhost5

A configuração do nginx-clickhouse é padronizada como


 /etc/nginx-clickhouse/config/config.yml

O caminho para o log pode ser alterado na configuração no parâmetro: log_path:


No clickhouse, você precisa criar um banco de dados de métricas:


 create database metrics

E você precisa criar uma tabela nginx:


 CREATE TABLE metrics.nginx ( RemoteAddr String, RemoteUser String, TimeLocal DateTime, Date Date DEFAULT toDate(TimeLocal), Request String, RequestMethod String, Status Int32, BytesSent Int64, HttpReferer String, HttpUserAgent String, RequestTime Float32, UpstreamConnectTime Float32, UpstreamHeaderTime Float32, UpstreamResponseTime Float32, Https FixedString(2), ConnectionsWaiting Int64, ConnectionsActive Int64 ) ENGINE = MergeTree(Date, (Status, Date), 8192)

Na Grafana, ao criar uma fonte de dados para Clickhouse, nomeie-a ClickHouse Main Server , porque no painel original da Grafana, é assim que ele é chamado.


Você também precisa criar uma variável de tabela com o conteúdo de metrics.nginx .
imagem


No site oficial da Grafana, você não encontrará um painel. Está nesta edição fechada:


Aqui está o meu painel ligeiramente corrigido:


Título de spoiler
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Teste realizado usando o benchmark Apache.


Instale-o:


 yum install -y httpd-tools

Começamos a testar usando o benchmark Apache em diferentes consoles:


 while true; do ab -c 1 -n 1 -t 1 http://vhost1/; sleep 2; done while true; do ab -c 1 -n 1 -t 1 http://vhost2/; sleep 2; done while true; do ab -c 1 -n 1 -t 1 http://vhost3/; sleep 2; done while true; do ab -c 1 -n 1 -t 1 http://vhost4/; sleep 2; done while true; do ab -c 1 -n 1 -t 1 http://vhost5/; sleep 2; done

Imagens:




Captura de tela do desenvolvedor do github:



Conclusão:


Espero o maior desenvolvimento do projeto. Enquanto o projeto estiver inativo.


Se você montar o projeto manualmente, preste atenção a esse problema .


Canais de telegrama:
Clickhouse
Nginx
Métricas da igreja


Pergunta aos leitores: Se você armazena métricas na clickhouse, quais utilitários / projetos auto-hospedados você obtém métricas por códigos de status e hosts virtuais com o Nginx?


UPDATE: O autor do projeto aceitou minha solicitação de recebimento:
https://github.com/mintance/nginx-clickhouse/pull/9
https://github.com/mintance/nginx-clickhouse/pull/10
https://github.com/mintance/nginx-clickhouse/pull/11
Além disso, o autor começou a responder na edição:
https://github.com/mintance/nginx-clickhouse/issues/7
https://github.com/mintance/nginx-clickhouse/issues/8

Source: https://habr.com/ru/post/pt477498/

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