Bydd yr erthygl hon yn trafod y prosiect
I weld dadansoddeg yn seiliedig ar logiau, byddwn yn creu dangosfwrdd ar gyfer Grafana.
Unrhyw un â diddordeb, croeso i gath.
Gosod nginx, grafana yn y ffordd safonol.
Gosod clwstwr clickhouse gan ddefnyddio ansible-playbook o
Creu cronfeydd data a thablau yn Clickhouse
Yn hynny
Rydyn ni'n gwneud pob cais fesul un ar bob gweinydd yng nghlwstwr Clickhouse.
Nodyn pwysig. Yn y llinell hon, mae angen disodli logs_cluster gyda'ch enw clwstwr o'r ffeil clickhouse_remote_servers.xml rhwng "remote_servers" a "shard".
ENGINE = Distributed('logs_cluster', 'nginx', 'access_log_shard', rand())
Gosod a ffurfweddu nginx-log-collector-rpm
Nid oes gan Nginx-log-collector rpm. Yma
Gosodwch y pecyn rpm 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
Golygu'r ffurfwedd /etc/nginx-log-collector/config.yaml:
.......
upload:
table: nginx.access_log
dsn: http://ip-адрес-кластера-clickhouse:8123/
- tag: "nginx_error:"
format: error # access | error
buffer_size: 1048576
upload:
table: nginx.error_log
dsn: http://ip-адрес-кластера-clickhouse:8123/
Sefydlu nginx
Cyfluniad nginx cyffredinol:
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;
}
Un gwesteiwr rhithwir:
vhost1.conf:
upstream backend {
server ip-адрес-сервера-с-stub_http_server:8080;
server ip-адрес-сервера-с-stub_http_server:8080;
server ip-адрес-сервера-с-stub_http_server:8080;
server ip-адрес-сервера-с-stub_http_server:8080;
server ip-адрес-сервера-с-stub_http_server:8080;
}
server {
listen 80;
server_name vhost1;
location / {
proxy_pass http://backend;
}
}
Ychwanegu gwesteiwyr rhithwir i'r ffeil /etc/hosts:
ip-адрес-сервера-с-nginx vhost1
Efelychydd gweinydd HTTP
Fel efelychydd gweinydd HTTP byddwn yn ei ddefnyddio
Nid oes gan Nodejs-stub-server rpm. Yma
Gosod pecyn nodejs-stub-server ar nginx rpm i fyny'r afon
yum -y install yum-plugin-copr
yum copr enable antonpatsev/nodejs-stub-server
yum -y install stub_http_server
systemctl start stub_http_server
Profi Straen
Rydym yn cynnal profion gan ddefnyddio meincnod Apache.
Ei osod:
yum install -y httpd-tools
Rydym yn dechrau profi gan ddefnyddio meincnod Apache o 5 gweinydd gwahanol:
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
Sefydlu Grafana
Ni fyddwch yn dod o hyd i ddangosfwrdd ar wefan swyddogol Grafana.
Felly, byddwn yn ei wneud â llaw.
Gallwch ddod o hyd i fy dangosfwrdd arbed
Mae angen i chi hefyd greu newidyn tabl gyda'r cynnwys nginx.access_log
.
Cyfanswm y Ceisiadau Singlestat:
SELECT
1 as t,
count(*) as c
FROM $table
WHERE $timeFilter GROUP BY t
Ceisiadau a Fethodd Singlestat:
SELECT
1 as t,
count(*) as c
FROM $table
WHERE $timeFilter AND status NOT IN (200, 201, 401) GROUP BY t
Canran Methu Singlestat:
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
Amser Ymateb Singlestat Avg:
SELECT
1, avg(request_time) FROM $table
WHERE $timeFilter GROUP BY 1
Amser Ymateb Singlestat Max:
SELECT
1 as t, max(request_time) as c
FROM $table
WHERE $timeFilter GROUP BY t
Statws Cyfrif:
$columns(status, count(*) as c) from $table
I allbynnu data fel pastai, mae angen i chi osod yr ategyn ac ailgychwyn grafana.
grafana-cli plugins install grafana-piechart-panel
service grafana-server restart
Pei Statws 5 UCHAF:
SELECT
1, /* fake timestamp value */
status,
sum(status) AS Reqs
FROM $table
WHERE $timeFilter
GROUP BY status
ORDER BY Reqs desc
LIMIT 5
Ymhellach byddaf yn rhoi ceisiadau heb sgrinluniau:
Cyfrif http_user_agent:
$columns(http_user_agent, count(*) c) FROM $table
Cyfradd Da/Cyfradd Wael:
$rate(countIf(status = 200) AS good, countIf(status != 200) AS bad) FROM $table
Amseriad Ymateb:
$rate(avg(request_time) as request_time) FROM $table
Amser ymateb i fyny'r afon (amser ymateb 1af i fyny'r afon):
$rate(avg(arrayElement(upstream_response_time,1)) as upstream_response_time) FROM $table
Statws Cyfrif Tabl ar gyfer pob vhost:
$columns(status, count(*) as c) from $table
Golygfa gyffredinol o'r dangosfwrdd
Cymhariaeth o avg() a quantile()
cyf()
cwantol ()
Casgliad:
Rwy'n gobeithio y bydd y gymuned yn cymryd rhan mewn datblygu/profi a defnyddio nginx-log-collector.
A phan fydd rhywun yn gweithredu nginx-log-collector, byddant yn dweud wrthych faint y maent wedi'i arbed ar ddisg, RAM, a CPU.
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Ffynhonnell: hab.com