ELK parse json field as seperate fields - elasticsearch

Question

I have json like this:
{"date":"2018-12-14 00:00:44,292","service":"aaa","severity":"DEBUG","trace":"abb161a98c23fc04","span":"cd782a330dd3271b","parent":"abb161a98c23fc04","pid":"12691","thread":"http-nio-9080-exec-12","message":"{\"type\":\"Request\",\"lang\":\"pl\",\"method\":\"POST\",\"sessionId\":5200,\"ipAddress\":\"127.0.0.1\",\"username\":\"kap#wp.pl\",\"contentType\":\"null\",\"url\":\"/aaa/getTime\",\"queryString\":\"null\",\"payload\":\",}"}
The issue is that above we have:
"message":"{\"type\":\"Request\",\"lang\":\"pl\",\"method\":\"POST\",\"sessionId\":5200,\"ipAddress\":\"127.0.0.1\",\"username\":\"kap#wp.pl\",\"contentType\":\"null\",\"url\":\"/aaa/getTime\",\"queryString\":\"null\",\"payload\":\",}
That application saves log file that way
and filebeat and logstash does not parse it as i want to.
I see only one field in Kibana named message but i want to have seperate fields like: type, lang, method etc.
I think the issue occurs cause of \ sign near " character.
How can i change behavior of filebeat/logstash to make it happen?
The application is to huge for me to add everywhere net.logstash.logback.encoder.LogstashEncoder in project java files.
I have many logback-json.xml files.
These files have:
<encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
<providers>
<pattern>
<pattern>
{
"date":"%date",
"severity": "%level",
"service": "${springAppName}",
"trace": "%X{X-B3-TraceId:-}",
"span": "%X{X-B3-SpanId:-}",
"parent": "%X{X-B3-ParentSpanId:-}",
"exportable": "%X{X-Span-Export:-}",
"pid": "${PID:-}",
"thread": "%thread",
"class": "%logger{26}",
"message": "%message",
"ex": "%ex"
}
</pattern>
</pattern>
</providers>
</encoder>
I tried adding somethine like "jsonMessage": "#asJson{%message}"
mentioned here: https://stackoverflow.com/a/45095983/4983983
but in case message is like mentioned before i see that it fails to parse and i get "jsonMessage":null
In simplier case i get:
"jsonMessage":{"type":"Response","payload":"2018-12-17T09:23:23.414"}
for example and not null.
My filebeat config:
###################### Filebeat Configuration Example #########################
# This file is an example configuration file highlighting only the most common
# options. The filebeat.reference.yml file from the same directory contains all the
# supported options with more comments. You can use it as a reference.
#
# You can find the full configuration reference here:
# https://www.elastic.co/guide/en/beats/filebeat/index.html
# For more available modules and options, please see the filebeat.reference.yml sample
# configuration file.
#=========================== Filebeat inputs =============================
filebeat.inputs:
# Each - is an input. Most options can be set at the input level, so
# you can use different inputs for various configurations.
# Below are the input specific configurations.
- type: log
# Change to true to enable this input configuration.
enabled: true
# Paths that should be crawled and fetched. Glob based paths.
paths:
- /opt/tomcat-gw/logs/*.json
- /opt/tomcat-bo/logs/*.json
- /opt/tomcat-gw/logs/localhost_access_log*.txt
- /opt/tomcat-bo/logs/localhost_access_log*.txt
json:
message_key: event
keys_under_root: true
# - /var/log/*.log
#- c:\programdata\elasticsearch\logs\*
# Exclude lines. A list of regular expressions to match. It drops the lines that are
# matching any regular expression from the list.
#exclude_lines: ['^DBG']
# Include lines. A list of regular expressions to match. It exports the lines that are
# matching any regular expression from the list.
#include_lines: ['^ERR', '^WARN']
# Exclude files. A list of regular expressions to match. Filebeat drops the files that
# are matching any regular expression from the list. By default, no files are dropped.
#exclude_files: ['.gz$']
# Optional additional fields. These fields can be freely picked
# to add additional information to the crawled log files for filtering
#fields:
# level: debug
# review: 1
### Multiline options
multiline:
pattern: '^({|Traceback)'
negate: true
match: after
# Multiline can be used for log messages spanning multiple lines. This is common
# for Java Stack Traces or C-Line Continuation
# The regexp Pattern that has to be matched. The example pattern matches all lines starting with [
#multiline.pattern: ^\[
# Defines if the pattern set under pattern should be negated or not. Default is false.
#multiline.negate: false
# Match can be set to "after" or "before". It is used to define if lines should be append to a pattern
# that was (not) matched before or after or as long as a pattern is not matched based on negate.
# Note: After is the equivalent to previous and before is the equivalent to to next in Logstash
#multiline.match: after
#============================= Filebeat modules ===============================
filebeat.config.modules:
# Glob pattern for configuration loading
path: ${path.config}/modules.d/*.yml
# Set to true to enable config reloading
reload.enabled: false
# Period on which files under path should be checked for changes
#reload.period: 10s
#==================== Elasticsearch template setting ==========================
setup.template.settings:
index.number_of_shards: 3
#index.codec: best_compression
#_source.enabled: false
#================================ General =====================================
# The name of the shipper that publishes the network data. It can be used to group
# all the transactions sent by a single shipper in the web interface.
#name:
# The tags of the shipper are included in their own field with each
# transaction published.
#tags: ["service-X", "web-tier"]
# Optional fields that you can specify to add additional information to the
# output.
#fields:
# env: staging
#============================== Dashboards =====================================
# These settings control loading the sample dashboards to the Kibana index. Loading
# the dashboards is disabled by default and can be enabled either by setting the
# options here, or by using the `-setup` CLI flag or the `setup` command.
#setup.dashboards.enabled: false
# The URL from where to download the dashboards archive. By default this URL
# has a value which is computed based on the Beat name and version. For released
# versions, this URL points to the dashboard archive on the artifacts.elastic.co
# website.
#setup.dashboards.url:
#============================== Kibana =====================================
# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.
# This requires a Kibana endpoint configuration.
setup.kibana:
# Kibana Host
# Scheme and port can be left out and will be set to the default (http and 5601)
# In case you specify and additional path, the scheme is required: http://localhost:5601/path
# IPv6 addresses should always be defined as: https://[2001:db8::1]:5601
host: "hiddenIp:5602"
# Kibana Space ID
# ID of the Kibana Space into which the dashboards should be loaded. By default,
# the Default Space will be used.
#space.id:
#============================= Elastic Cloud ==================================
# These settings simplify using filebeat with the Elastic Cloud (https://cloud.elastic.co/).
# The cloud.id setting overwrites the `output.elasticsearch.hosts` and
# `setup.kibana.host` options.
# You can find the `cloud.id` in the Elastic Cloud web UI.
#cloud.id:
# The cloud.auth setting overwrites the `output.elasticsearch.username` and
# `output.elasticsearch.password` settings. The format is `<user>:<pass>`.
#cloud.auth:
#================================ Outputs =====================================
# Configure what output to use when sending the data collected by the beat.
#-------------------------- Elasticsearch output ------------------------------
#output.elasticsearch:
# Array of hosts to connect to.
# hosts: ["localhost:9200"]
# Optional protocol and basic auth credentials.
#protocol: "https"
#username: "elastic"
#password: "changeme"
#----------------------------- Logstash output --------------------------------
output.logstash:
# The Logstash hosts
hosts: ["hiddenIp:5044"]
# Optional SSL. By default is off.
# List of root certificates for HTTPS server verifications
#ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]
# Certificate for SSL client authentication
#ssl.certificate: "/etc/pki/client/cert.pem"
# Client Certificate Key
#ssl.key: "/etc/pki/client/cert.key"
#================================ Procesors =====================================
# Configure processors to enhance or manipulate events generated by the beat.
processors:
- add_host_metadata: ~
- add_cloud_metadata: ~
#================================ Logging =====================================
# Sets log level. The default log level is info.
# Available log levels are: error, warning, info, debug
#logging.level: debug
# At debug level, you can selectively enable logging only for some components.
# To enable all selectors use ["*"]. Examples of other selectors are "beat",
# "publish", "service".
#logging.selectors: ["*"]
#============================== Xpack Monitoring ===============================
# filebeat can export internal metrics to a central Elasticsearch monitoring
# cluster. This requires xpack monitoring to be enabled in Elasticsearch. The
# reporting is disabled by default.
# Set to true to enable the monitoring reporter.
#xpack.monitoring.enabled: false
# Uncomment to send the metrics to Elasticsearch. Most settings from the
# Elasticsearch output are accepted here as well. Any setting that is not set is
# automatically inherited from the Elasticsearch output configuration, so if you
# have the Elasticsearch output configured, you can simply uncomment the
# following line.
#xpack.monitoring.elasticsearch:

Answer 1

I wrote following code and if I start logstash with this file then I can see correct json in kibana.
input {
file {
path => "C:/Temp/logFile.log"
start_position => "beginning"
}
}
filter {
json{
source => "message"
target => "parsedJson"
}
}
output {
elasticsearch {
hosts => "localhost:9200"
index => "demo"
document_type => "demo"
}
stdout { }
}
Please refer Kibana image
Reference from : Reference

Answer 2

use this configuration in your logstash filter
filter {json{ source => "message" target => "message1" }
mutate{ remove_field => [ "message" ]}}