Artikulu honetan proiektua eztabaidatuko da
Erregistroetan oinarritutako analisiak ikusteko, Grafana-rako panel bat sortuko dugu.
Interesa duen edonor, ongi etorri katura.
Instalatu nginx, grafana modu estandarrean.
Clickhouse kluster bat instalatzen ansible-playbook from
Clickhousen datu-baseak eta taulak sortzea
Honetan
Eskaera bakoitza banan-banan egiten dugu Clickhouse klusterreko zerbitzari bakoitzean.
Ohar garrantzitsua. Lerro honetan, logs_cluster "remote_servers" eta "shard" arteko clickhouse_remote_servers.xml fitxategiko zure kluster izenarekin ordezkatu behar da.
ENGINE = Distributed('logs_cluster', 'nginx', 'access_log_shard', rand())
nginx-log-collector-rpm instalatzea eta konfiguratzea
Nginx-log-collector-ek ez du rpmrik. Hemen
Instalatu rpm paketea nginx-log-collector-rpm
yum -y install yum-plugin-copr
yum copr enable antonpatsev/nginx-log-collector-rpm
yum -y install nginx-log-collector
systemctl start nginx-log-collector
Editatu /etc/nginx-log-collector/config.yaml konfigurazioa:
.......
upload:
table: nginx.access_log
dsn: http://ip-Π°Π΄ΡΠ΅Ρ-ΠΊΠ»Π°ΡΡΠ΅ΡΠ°-clickhouse:8123/
- tag: "nginx_error:"
format: error # access | error
buffer_size: 1048576
upload:
table: nginx.error_log
dsn: http://ip-Π°Π΄ΡΠ΅Ρ-ΠΊΠ»Π°ΡΡΠ΅ΡΠ°-clickhouse:8123/
nginx konfiguratzen
Nginx konfigurazio orokorra:
user nginx;
worker_processes auto;
#error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
log_format avito_json escape=json
'{'
'"event_datetime": "$time_iso8601", '
'"server_name": "$server_name", '
'"remote_addr": "$remote_addr", '
'"remote_user": "$remote_user", '
'"http_x_real_ip": "$http_x_real_ip", '
'"status": "$status", '
'"scheme": "$scheme", '
'"request_method": "$request_method", '
'"request_uri": "$request_uri", '
'"server_protocol": "$server_protocol", '
'"body_bytes_sent": $body_bytes_sent, '
'"http_referer": "$http_referer", '
'"http_user_agent": "$http_user_agent", '
'"request_bytes": "$request_length", '
'"request_time": "$request_time", '
'"upstream_addr": "$upstream_addr", '
'"upstream_response_time": "$upstream_response_time", '
'"hostname": "$hostname", '
'"host": "$host"'
'}';
access_log syslog_server=unix:/var/run/nginx_log.sock,nohostname,tag=nginx avito_json; #ClickHouse
error_log syslog_server=unix:/var/run/nginx_log.sock,nohostname,tag=nginx_error; #ClickHouse
#access_log /var/log/nginx/access.log main;
proxy_ignore_client_abort on;
sendfile on;
keepalive_timeout 65;
include /etc/nginx/conf.d/*.conf;
}
Ostalari birtual bat:
vhost1.conf:
upstream backend {
server ip-Π°Π΄ΡΠ΅Ρ-ΡΠ΅ΡΠ²Π΅ΡΠ°-Ρ-stub_http_server:8080;
server ip-Π°Π΄ΡΠ΅Ρ-ΡΠ΅ΡΠ²Π΅ΡΠ°-Ρ-stub_http_server:8080;
server ip-Π°Π΄ΡΠ΅Ρ-ΡΠ΅ΡΠ²Π΅ΡΠ°-Ρ-stub_http_server:8080;
server ip-Π°Π΄ΡΠ΅Ρ-ΡΠ΅ΡΠ²Π΅ΡΠ°-Ρ-stub_http_server:8080;
server ip-Π°Π΄ΡΠ΅Ρ-ΡΠ΅ΡΠ²Π΅ΡΠ°-Ρ-stub_http_server:8080;
}
server {
listen 80;
server_name vhost1;
location / {
proxy_pass http://backend;
}
}
Gehitu ostalari birtualak /etc/hosts fitxategira:
ip-Π°Π΄ΡΠ΅Ρ-ΡΠ΅ΡΠ²Π΅ΡΠ°-Ρ-nginx vhost1
HTTP zerbitzariaren emuladorea
HTTP zerbitzariaren emulatzaile gisa erabiliko dugu
Nodejs-stub-server-ek ez du rpmrik. Hemen
Instalatu nodejs-stub-server paketea upstream nginx rpm-n
yum -y install yum-plugin-copr
yum copr enable antonpatsev/nodejs-stub-server
yum -y install stub_http_server
systemctl start stub_http_server
Estres probak
Probak Apache benchmark erabiliz egiten ditugu.
Instalatu:
yum install -y httpd-tools
5 zerbitzari desberdinetatik Apache benchmark erabiliz probatzen hasten gara:
while true; do ab -H "User-Agent: 1server" -c 10 -n 10 -t 10 http://vhost1/; sleep 1; done
while true; do ab -H "User-Agent: 2server" -c 10 -n 10 -t 10 http://vhost1/; sleep 1; done
while true; do ab -H "User-Agent: 3server" -c 10 -n 10 -t 10 http://vhost1/; sleep 1; done
while true; do ab -H "User-Agent: 4server" -c 10 -n 10 -t 10 http://vhost1/; sleep 1; done
while true; do ab -H "User-Agent: 5server" -c 10 -n 10 -t 10 http://vhost1/; sleep 1; done
Grafana konfiguratzea
Grafana webgune ofizialean ez duzu panelik aurkituko.
Horregatik, eskuz egingo dugu.
Gordetako nire panela aurki dezakezu
Taula-aldagai bat ere sortu behar duzu edukiekin nginx.access_log
.
Singlestat eskaerak guztira:
SELECT
1 as t,
count(*) as c
FROM $table
WHERE $timeFilter GROUP BY t
Singlestat huts egindako eskaerak:
SELECT
1 as t,
count(*) as c
FROM $table
WHERE $timeFilter AND status NOT IN (200, 201, 401) GROUP BY t
Estatu bakarreko hutsegiteen ehunekoa:
SELECT
1 as t, (sum(status = 500 or status = 499)/sum(status = 200 or status = 201 or status = 401))*100 FROM $table
WHERE $timeFilter GROUP BY t
Singlestat batez besteko erantzun-denbora:
SELECT
1, avg(request_time) FROM $table
WHERE $timeFilter GROUP BY 1
Singlestat gehienezko erantzun-denbora:
SELECT
1 as t, max(request_time) as c
FROM $table
WHERE $timeFilter GROUP BY t
Zenbaketa-egoera:
$columns(status, count(*) as c) from $table
Tarta bat bezalako datuak ateratzeko, plugina instalatu eta grafana berrabiarazi behar duzu.
grafana-cli plugins install grafana-piechart-panel
service grafana-server restart
Pie TOP 5 egoera:
SELECT
1, /* fake timestamp value */
status,
sum(status) AS Reqs
FROM $table
WHERE $timeFilter
GROUP BY status
ORDER BY Reqs desc
LIMIT 5
Gainera, pantaila-argazkirik gabe eskaerak emango ditut:
Zenbaketa http_user_agent:
$columns(http_user_agent, count(*) c) FROM $table
Tasa ona/Tasa txarra:
$rate(countIf(status = 200) AS good, countIf(status != 200) AS bad) FROM $table
Erantzun-denbora:
$rate(avg(request_time) as request_time) FROM $table
Upstream erantzun-denbora (urte gorako 1. erantzun-denbora):
$rate(avg(arrayElement(upstream_response_time,1)) as upstream_response_time) FROM $table
Taula-zenbaketa-egoera vhost guztientzat:
$columns(status, count(*) as c) from $table
Aginte-panelaren ikuspegi orokorra
bataz () eta kuantila () konparaketa
batez bestekoa ()
kuantila ()
Ondorioa:
Espero dut komunitateak garatzen/proban eta nginx-log-collector erabiltzen parte hartzea.
Eta norbaitek nginx-log-collector ezartzen duenean, zenbat disko, RAM eta CPU gorde duen esango dizu.
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