Top "Logstash" questions

Logstash is a tool for managing events and logs.

How to debug the logstash file plugin

Is it possible to log actions of the logstash file plugin? (i.e. what files it tries to send, what …

logging logstash
SearchPhaseExecutionException[Failed to execute phase [query], all shards failed]

Recently our server was rebooted without correctly shutting down the Elastic Search / Kibana. After that reboot, both applications were running …

elasticsearch logstash windows-server-2012 kibana
How to handle multiple heterogeneous inputs with Logstash?

Let's say you have 2 very different types of logs such as technical and business logs and you want: raw technical …

logging elasticsearch logstash graylog2
How to handle non-matching Logstash grok filters

I am wondering what the best approach to take with my Logstash Grok filters. I have some filters that are …

filter logstash logstash-grok
Logstash configtest

I ran service logstash configtest but error given was: logstash: unrecognized service I was able to run logstash service individually …

logstash logstash-configuration
Error: index_not_found_exception

I use ELK stack to analyze my log file. I have tested last week and everything works well. Today, I …

elasticsearch logstash kibana
Logstash conditional to check if tag exists?

Is there any way in logstash to use a conditional to check if a specific tag exists? For example, grok { …

logstash
How to do "where not exists" type filtering in Kibana/ELK?

I am using ELK to create dashboards from my log files. I have a log file with entries that contain …

elasticsearch logstash kibana
Is there any existing grok{} pattern for date format YYYY/MM/DD HH:mm:ss?

I was checking the nginx error logs at our server and found that they start with date formatted as: 2015/08/30 05:55:20 i.…

logstash logstash-grok
Using Log4J with LogStash

I'm new to LogStash. I have some logs written from a Java application in Log4J. I'm in the process …

log4j logstash