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Questions tagged [gelf]

The Graylog Extended Log Format (GELF) is a log format.

The Extended Log Format (GELF) is a log format that avoids the shortcomings of classic plain syslog:

  • Limited to length of 1024 bytes – Not much space for payloads like backtraces
  • No data types in structured syslog. You don’t know what is a number and what is a string.
  • The RFCs are strict enough but there are so many syslog dialects out there that you cannot possibly parse all of them.
  • No compression

There are a number of software libraries that can be used to produce logs in GELF, e.g. .

Links:

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How to forward logs from docker container to Graylog server without pre-formatting?

I have a Docker container that sends its logs to Graylog via udp. Previously I just used it to output raw messages, but now I've come up with a solution that logs in GELF format. However, Docker just puts it into "message" field (screen from Graylog…
Nikita Kalimov
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Send a message on Graylog GELF UDP Input through a JAVA class

I've this Graylog GELF UDP Input (image) and I need to send a message through a JAVA class. The message isn't Log info, but is JSON. Can you help me find a simple solution? I already use Graylog with AMQP Input, but I would like to create an…
user12101608
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How to get GELF-Logs from local Docker daemon to Loki?

tl;dr: Loki-docker-log-driver -> Loki : ✅ works. Loki-docker-log-driver -> JSON Decode -> Loki : How? For my local development, I run several services which log in GELF Format. To get a better overview and time-ordered log stream with filter…
sja
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Using Seq and seqcli for logging Java Springboot in real time

I'm trying to use Seq, which is a tool for logging management, mostly supported in .NET. There are also tools like seqcli for sending logs to a seq server as shown here: https://docs.datalust.co/docs/ The thing is, I'm using a springboot App, and…
Luis Avellaneda
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How do I customize a GELF appender for log4j2?

We have a log4j2-graylog.xml file that we use to bridge our log4j output to GrayLog 3.0 using the biz.paluch.logging.gelf.log4j2 package. This config file is based on this example:
kc2001
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How To Create appenderRef for GrayLog Integration As Programaticly Using Java log4j

I have log4j2 xml configuration but I want to convert this configuration as programaticly …
yasin
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From Inside a .netcore application running in a docker container, logs are not reaching to GrayLog server

I have built an asp.net core based application. while running the application directly from VS, I am able to receive the logs in the graylog server. But after building the docker container logs are not reaching to the server. I have tried with…
Zain Malik
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"Your configuration files are not serializable" error message after adding GELF logger in Laravel 5.6

After adding GELF logging according to this how to https://medium.com/@vaidaslungis/setup-graylog-in-laravel-5-6-logging-d2276bcb9cfa the php artisan config:cache command isn't working anymore. The error message is: In ConfigCacheCommand.php line…
Daniel Becker
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Why doesn't Logstash consume logs from gelf?

I'm trying to set up an interaction between running Docker container's logs and Logstash. I run my Docker container with the following command: docker run --log-driver gelf --log-opt gelf-address=udp://127.0.0.1:12201 nfrankel/simplelog:1 and the…
Pasha
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Oracle UTL_TCP to Graylog GELF TCP error - GELF message is too short. Not even the type header would fit

I am facing an issue when trying to send data from Oracle via UTL_TCP to Graylog GELF TCP. I try with a single event (record, JSON formatted, as per Graylog required). The issue consists in the fact that while the single event does upload correctly,…
altink
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Docker gelf log driver - Invalid reference format

I am trying to start a docker container and make use the gelf log driver. I run what is in the docs: docker run --log-driver gelf --log-opt gelf-address udp://127.0.0.1:12201 hello-world But that returns: docker: invalid reference format. What am…
AlexanderNajafi
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logstash-5.x gelf input multiline codec doesn't work

I have a simple and straightforward config and I'm not sure what I'm doing wrong trying to get this multiline working. input { gelf { codec => multiline { pattern => "^%{TIMESTAMP_ISO8601} " negate => true …
Eren Güven
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How to receive udp-GELF message in gzip format via akka stream

I'm trying to write a program which listens to the specific port which another program send fake GELF message in UDP and gzips format on that. when the GELF message isn't gzipped It's easy to work with that, but when It's gzipped I don't know what…
navid
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Graylog / Symfony2 / Gelf: How to configure logger to ignore errors?

I'm trying to stream logs from a symfony 2 app to a graylog 2 server using the gelf format. My monolog configuration looks as follows: monolog: handlers: # --- 8< --- # ... # --- >8 --- graylog: …
Paul
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Cannot get GELF Appender to add Sleuth Span Id

I am trying to get the Sleuth Span-Id and Trace-Id included as additonalFields in my logback-sping.xml GELF appeneder but am having no luck. They show up fine in the actual log file output in the Console, but in Graylog they don't show up. NOTE :…
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