Benchmark compares VictoriaLogs, ELK stack and Grafana Loki.
Benchmark is based on:
- Logs from this repository - https://github.com/logpai/loghub
- logs generator
For ELK suite it uses:
- filebeat - https://www.elastic.co/beats/filebeat
- elastic + kibana
For Grafana Loki suite it uses:
docker-compose.yml contains common configurations for all suites:
- VictoriaLogs instance
- vmsingle - port forwarded to
localhost:8428
to see UI - exporters for system metris
ELK suite uses docker-compose-elk.yml with the following services:
- logs generator which generates logs and sends them to filebeat instances via syslog
- 2 filebeat instances - one for elastic and one for VictoriaLogs.
- elastic instance
- kibana instance - port forwarded to
localhost:5601
to see UI
Loki suite uses docker-compose-loki.yml with the following services:
- logs generator which generates logs and sends them rsyslog
- rsyslog instance - sends logs to Promtail
- Promtail instance - sends logs to Loki and VictoriaLogs
- Loki instance
Logs generator generates logs based on logs located at ./source_logs/logs
and sends them to filebeat
instances via syslog.
Logs are generated by reading files line by line, adding randomized suffix to each line and sending them to filebeat via
syslog.
By default, generator will exit once all files are read. docker-compose
will restart it and files will be read again
generating new logs.
Each filebeat than writes logs to elastic and VictoriaLogs via elasticsearch-compatible API.
- Download and unarchive logs by running:
cd source_logs
bash download.sh
Note that with logs listed in download.sh
it will require 49GB of free space:
- 3GB for archives
- 46GB for unarchived logs
If it is needed to minimize disk footprint, you can download only some of them by commenting out lines in download.sh
.
Unarchived logs size per file for reference:
2.3M Linux.log
73M SSH.log
32G Thunderbird.log
5.1M Apache.log
13G hadoop-*.log
-
(optional) If needed, adjust amount of logs sent by generator by modifying
-outputRateLimitItems
andoutputRateLimitPeriod
parameters in docker-compose.yml. By default, it is configured to send 10000 logs per second. -
(optional) Build victoria-logs image and adjust
image
parameter in docker-compose.yml:
make package-victoria-logs
Image name should be replaced at vlogs
service in docker-compose.yml.
It is also possible to configure filebeat to send logs to VictoriaLogs running on local machine.
To do this modify filebeat config for vlogs and replace vlogs
address
with address of local VictoriaLogs instance:
output.elasticsearch:
hosts: [ "http://vlogs:9428/insert/elasticsearch/" ]
-
Choose a suite to run.
In order to run ELK suite use the following command:
make docker-up-elk
In order to run Loki suite use the following command:
make docker-up-loki
-
Navigate to
http://localhost:3000/
to see Grafana dashboards with resource usage comparison.Navigate to
http://localhost:3000/d/hkm6P6_4z/elastic-vs-vlogs
to see ELK suite results.Navigate to
http://localhost:3000/d/hkm6P6_4y/loki-vs-vlogs
to see Loki suite results.
Example results vs ELK:
Example results vs Loki: