Sehlooho sena se tla tšohla morero , e tla bala li-logs tsa nginx, li li romelle ho sehlopha sa Clickhouse. Hangata ElasticSearch e sebelisoa bakeng sa lintlha. Clickhouse e hloka lisebelisoa tse fokolang (sebaka sa disk, RAM, CPU). Clickhouse e ngola data kapele. Clickhouse e hatella data, e etsang hore data e ho disk e kopane le ho feta. Melemo ea Clickhouse e ka bonoa ho li-slide tse 2 ho tsoa tlalehong
Ho sheba analytics ka logs, ha re theheng dashboard bakeng sa Grafana.
Ke mang ea tsotellang, amohela tlas'a katse.
Kenya nginx, grafana ka tsela e tloaelehileng.
Kenya sehlopha sa Clickhouse ka ansible-playbook ho tloha .
Ho theha database le litafole ho Clickhouse
Ho seo Lipotso tsa SQL tsa ho theha database le litafole tsa nginx-log-collector ho Clickhouse li hlalositsoe.
Re etsa kopo ka 'ngoe ho seva se seng le se seng sa sehlopha sa Clickhouse.
Molaetsa oa bohlokoa. Moleng ona, logs_cluster e tlameha ho nkeloa sebaka ka lebitso la sehlopha sa hau ho tsoa ho faele ea clickhouse_remote_servers.xml lipakeng tsa "remote_servers" le "shard".
ENGINE = Distributed('logs_cluster', 'nginx', 'access_log_shard', rand())Ho kenya le ho lokisa nginx-log-collector-rpm
Nginx-log-collector ha e na rpm. Mona theha rpm bakeng sa eona. rpm e tla hahuoa ho sebelisoa
Kenya sephutheloana sa 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-collectorFetola tlhophiso /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/Ho theha nginx
Kakaretso ea nginx config:
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;
}
Virtual host one:
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;
}
}Eketsa li-host host ho file ea /etc/hosts:
ip-адрес-сервера-с-nginx vhost1Emulator ea seva ea HTTP
Joaloka emulator ea seva sa HTTP re tla e sebelisa от
nodejs-stub-server ha e na rpm. Mona theha rpm bakeng sa eona. rpm e tla hahuoa ho sebelisoa
Kenya sephutheloana sa nodejs-stub-server sebakeng se ka holimo sa nginx rpm
yum -y install yum-plugin-copr
yum copr enable antonpatsev/nodejs-stub-server
yum -y install stub_http_server
systemctl start stub_http_serverTeko ea Khatello ea Maikutlo
Teko e etsoa ho sebelisoa benchmark ea Apache.
E kenye:
yum install -y httpd-toolsRe qala ho leka ho sebelisa benchmark ea Apache ho tsoa ho li-server tse 5 tse fapaneng:
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; doneHo theha Grafana
U ke ke ua fumana dashboard webosaeteng ea semmuso ea Grafana.
Ka hona, re tla e etsa ka letsoho.
U ka fumana dashboard ea ka e bolokiloeng .
U boetse u hloka ho theha tafole e fapaneng e nang le litaba nginx.access_log.
Singlestat Kakaretso ea Likopo:
SELECT
1 as t,
count(*) as c
FROM $table
WHERE $timeFilter GROUP BY t
Likopo tse Hlolehileng tsa Singlestat:
SELECT
1 as t,
count(*) as c
FROM $table
WHERE $timeFilter AND status NOT IN (200, 201, 401) GROUP BY t
Singlestat Failing Percent:
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
Nako ea Karabo ea Singlestat Avg:
SELECT
1, avg(request_time) FROM $table
WHERE $timeFilter GROUP BY 1
Nako ea Karabo ea Singlestat Max:
SELECT
1 as t, max(request_time) as c
FROM $table
WHERE $timeFilter GROUP BY t
Boemo ba ho Bala:
$columns(status, count(*) as c) from $table
Ho hlahisa data joalo ka phae, o hloka ho kenya plugin le ho kenya grafana hape.
grafana-cli plugins install grafana-piechart-panel
service grafana-server restartBoemo ba Pie TOP 5:
SELECT
1, /* fake timestamp value */
status,
sum(status) AS Reqs
FROM $table
WHERE $timeFilter
GROUP BY status
ORDER BY Reqs desc
LIMIT 5
Ho feta moo ke tla fana ka likopo ntle le li-screenshots:
Bala http_user_agent:
$columns(http_user_agent, count(*) c) FROM $tableGoodRate/BadRate:
$rate(countIf(status = 200) AS good, countIf(status != 200) AS bad) FROM $tablenako ea karabo:
$rate(avg(request_time) as request_time) FROM $tableNako ea karabelo holimo (nako ea karabelo ea 1st upstream):
$rate(avg(arrayElement(upstream_response_time,1)) as upstream_response_time) FROM $tableTafole Count Status bakeng sa li-vhosts tsohle:
$columns(status, count(*) as c) from $tablePono e akaretsang ea dashboard
Ho bapisa avg() le quantile()
kakaretso()
quantile()
Qetello:
Re tšepa hore sechaba se tla kenya letsoho ho nts'etsopele/tekong le ho sebelisa nginx-log-collector.
'Me ha motho a sebelisa nginx-log-collector, o tla u bolella hore na o bolokile disk, RAM, CPU bokae.
Liteishene tsa Telegraph:
Milliseconds:
Ke mang ea tsotellang milliseconds, ngola kapa o vouta, ka kopo, ho sena .
Source: www.habr.com