Nouveau Print Maker


    3.2.0 • Public • Published

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    What is Logagent

    Logagent is a modern, open-source, light-weight log shipper. It is like Filebeat and Logstash in one, without the JVM memory footprint. It comes with out of the box and extensible log parsing, on-disk buffering, secure transport, and bulk indexing to Elasticsearch, Sematext Logs, and other destinations. Its low memory footprint and low CPU overhead make it suitable for deploying on edge nodes and devices, while its ability to parse and structure logs makes it a great Logstash alternative.


    Details about the the Logagent Docker image are described in the Docker Hub Readme


    1) Install Node.js

    Official Node.js downloads and instructions. E.g. for Debian/Ubuntu:

    curl -sL | sudo -E bash -
    sudo apt-get install -y nodejs
    Install Logagent with npm
    sudo npm i -g @sematext/logagent

    2) Run logagent command line tool

    logagent --help

    3) Example: Index your log files in Elasticsearch

    logagent -e http://localhost:9200 -i logs -g ‘/var/log/**/*.log’

    4) Optional: Install service & config

    Install service for Logagent using systemd, upstart, launchd To quickly create a config file for indexing into Elasticsearch without having to edit it run something like this:

    sudo logagent-setup -u http://localhost:9200 -i INDEX_NAME -g '/var/log/**/*.log'
    # Logsene US: use -u and your Logsene App Token as index name.
    # Logsene EU: use -u and your Logsene App Token as index name.


    To configure different inputs, different event processing, or different outputs (e.g. your own Elasticsearch) edit /etc/sematext/logagent.conf, e.g.:

        module: elasticsearch
        url: http://elasticsearch-server:9200
        index: logs

    Then restart the service with sudo service logagent restart. Troubleshooting & Logs Logagent’s own logs:

    • Upstart: /var/log/upstart/logagent.log
    • Systemd: journalctl -u logagent
    • Launchd: /Library/Logs/logagent.log

    Location of service scripts:

    • Upstart: /etc/init/logagent.conf
    • Systemd: /etc/systemd/system/logagent.service
    • Launchd: /Library/LaunchDaemons/com.sematext.logagent.plist

    Start/stop service:

    • Upstart: service logagent stop/start
    • Systemd: systemctl stop/start logagent
    • Launchd: launchctl start/stop com.sematext.logagent

    Documentation & Support


    • Update to the last node version
    • From root folder node type: node ./bin/logagent -h
    • To test from root folder type: node test


    npm i @sematext/logagent

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    • megastef
    • sematext