stay The above distributed tracking system selection and practice in , I briefly introduced APM System , Here is a record of Elastic APM Installation and use process of .

build elk

according to es Official website description: deploy separately ( See references ).

Deploy elasticsearch

Download... From the command line elasticsearch：
curl -L -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.0.1-linux-x86_64.tar.gz

Extract to the specified directory , Such as /usr/local Catalog .
Get into elasticsearch Of bin Catalog , function elasticsearch Script ：
./elasticsearch
You can start elasticsearch. To the local 9200 Port send a http request , Get back to the following ：

Deploy logstash

download logstash：https://www.elastic.co/cn/downloads/logstash（7.9 edition ）

Extract to the specified directory , Such as /usr/local.

Get into logstash Catalog , function logstash Script ：
./bin/logstash -f config/logstash-sample.conf

You can see the current output ：

If elasticsearch Not running , May be an error ： Unable to connect es example .

Deploy kibana

Download... From the command line kibana：
wget https://artifacts.elastic.co/downloads/kibana/kibana-7.0.1-linux-x86_64.tar.gz

Extract to the specified directory , Get into bin Directory execution scripts ：
./kibana

visit 127.0.0.1:5601, You can see the interface kibana Interface ：

Elk Use

It's starting up logstash It is started through the sample configuration file , Now create a new configuration file logstash.conf:

And then restart it logstash, Specify the configuration file as the newly created file ：

./bin/logstash -f config/logstash.conf

This configuration file represents reading data from the file , And store it to elasticsearch in , The index name is test-log-[ years ].

stay kibana Of manager Page view index , You will find a new one named test-log-2020.11 The index of .

establish Index pattern, Enter the index regular expression , Will automatically match the index file ：

After creating the regular expression of the index , stay discover The page can select the index . You can search data by entering query criteria in the search box .

Elastic APM

start-up apm server

download （https://www.elastic.co/guide/en/apm/server/7.0/installing.html
） And extract the apm server To the specified directory , Get into bin Directory import kibana apm Instrument cluster and start apm server：

./apm-server setup
./apm-server -e

start-up agent

In different languages agent The use of is different . Let's say python Of agent Take an example to illustrate .

Supported by web Refer to the official website description for the framework and version ：https://www.elastic.co/guide/en/apm/agent/python/5.x/supported-technologies.html.

Python Medium agent It is provided in the form of a library , Just integrate in the code , As shown below ：

from flask import Flask
from elasticapm.contrib.flask import ElasticAPM
from elasticapm.handlers.logging import LoggingHandler
app = Flask(__name__)
app.config['ELASTIC_APM'] = {
    'SERVER_URL': 'http://127.0.0.1:8200',
    'DEBUG': True
}
apm = ElasticAPM(app, service_name='python-test', logging=True)
port = 5000

@app.route('/')
def hello_world():
    try:
        1 / 0
    except ZeroDivisionError:
        apm.client.capture_exception()
    return 'Hello World! I am running on port ' + str(port)

if __name__ == '__main__':
    handler = LoggingHandler(client=apm.client)
    app.logger.addHandler(handler)
    app.run(host='0.0.0.0', port=port)

visit http://127.0.0.1:5000/ Interface , Output ：Hello World! I am running on port 5000.

The official website said support 6.0+ Version of tornado, But use agent After that, the service cannot be started ,why??

APM Interface

Get into kibana Of apm menu , Create as directed apm Interface . After completion, you can see the following interface ：

Click on server Get into ：

Get into discover menu , choice apm-* Indexes , You can see apm Index data .

The next article will continue with cat Installation and use .

Reference material

[1].https://www.elastic.co/guide/en/apm/get-started/7.9/install-and-run.html