So I have a log line formatted as such:
2020-04-15 12:16:44,936 WARN c.e.d.c.p.p.BasePooledObjectFactory [main] Caution - XML schema validation has been disabled! Validation is only available when using XML.
I am using filebeat to send this directly to elasticsearch, which it does but the log.level is not set, the whole line becomes the message.
reading up on dissection I had intended to use:
processors:
- add_host_metadata: ~
- dissect:
tokenizer: "%{} %{} %{log.level} %{} [%{}] %{message}"
field: "message"
target_prefix: ""
which I expected to split into:
{
log.level: WARN
message: Caution - XML schema validation has been disabled! Validation is only available when using XML.
}
instead I get the same output as without the dissect:
{
message: 2020-04-15 12:16:44,936 WARN c.e.d.c.p.p.BasePooledObjectFactory [main] Caution - XML schema validation has been disabled! Validation is only available when using XML.
}
I'm just getting to grips with filebeat and I've tried looking through the documentation which made it look simple enough. however my dissect is currently not doing anything. host metadata is being added so I believe that the processors are being called.
How can I get the log level out of the log line? (preferably without changing the format of the log itself)
You need to pick another field name than message in the dissect tokenization since this is the name of the field that contains the original log message:
processors:
- add_host_metadata: ~
- dissect:
tokenizer: "%{} %{} %{log.level} %{} [%{}] %{msg}"
field: "message"
target_prefix: ""
Related
I have Elasticsearch, Filebeat and Kibana running on a Windows machine. Filebeat log has a proper log file and is listening to the path. When I look on the data in Kibana it looks fine.
My issue is that the message field is a String.
Example of one log line:
12:58:09.9608 Trace {"message":"No more Excel rows found","level":"Trace","logType":"User","timeStamp":"2020-08-14T12:58:09.9608349+02:00","fingerprint":"226fdd2-e56a-4af4-a7ff-724a1a0fea24","windowsIdentity":"mine","machineName":"NAME-PC","processName":"name","processVersion":"1.0.0.1","jobId":"957ef018-0a14-49d2-8c95-2754479bb8dd","robotName":"NAME-PC","machineId":6,"organizationUnitId":1,"fileName":"GetTransactionData"}
So what I would like to have now is that String converted to a JSON so that it is possible to search in Kibana for example for the level field.
I already had a look on Filebeat. There I tried to enable LogStash . But then the data does not come anymore to Elasticsearch. And also the log file is not genereated into the LogStash folder.
Then I downloaded LogStash via install guide, but unfortunately I got this message:
C:\Users\name\Desktop\logstash-7.8.1\bin>logstash.bat
Sending
Logstash logs to C:/Users/mine/Desktop/logstash-7.8.1/logs which
is now configured via log4j2.properties ERROR: Pipelines YAML file is
empty. Location:
C:/Users/mine/Desktop/logstash-7.8.1/config/pipelines.yml usage:
bin/logstash -f CONFIG_PATH [-t] [-r] [] [-w COUNT] [-l LOG]
bin/logstash --modules MODULE_NAME [-M
"MODULE_NAME.var.PLUGIN_TYPE.PLUGIN_NAME.VARIABLE_NAME=VALUE"] [-t]
[-w COUNT] [-l LOG] bin/logstash -e CONFIG_STR [-t] [--log.level
fatal|error|warn|info|debug|trace] [-w COUNT] [-l LOG] bin/logstash
-i SHELL [--log.level fatal|error|warn|info|debug|trace] bin/logstash -V [--log.level fatal|error|warn|info|debug|trace]
bin/logstash --help
[2020-08-14T15:07:51,696][ERROR][org.logstash.Logstash ]
java.lang.IllegalStateException: Logstash stopped processing because
of an error: (SystemExit) exit
Edit:
I tried to use Filebeat only. Here I set:
processors:
- add_host_metadata: ~
- add_cloud_metadata: ~
- add_docker_metadata: ~
- add_kubernetes_metadata: ~
- dissect:
tokenizer: '"%{event_time} %{loglevel} %{json_message}"'
field: "message"
target_prefix: "dissect"
- decode_json_fields:
fields: ["json_message"]
but that gave me:
dissect_parsing_error
The tip with removing the "" at tokenizer helped. Then I got:
I simply refreshed the index and the message was gone. Nice.
But The question is now, how to filter for something in the new field?
The message says, your pipeline config is empty. It seems you did not configured any pipeline yet. Logstash can do the trick (JSON filter plugin), but Filebeat is sufficient here. If you don't want to introduce another Service, this is the better option.
It has the decode_json_fields option to transform specific fields containing JSON in your event to a . Here is the documentation.
For the future case, where your whole event is a JSON, there is the possibility of parsing in filebeat configuring the json.message_key and related json.* option.
EDIT - Added filebeat snippet as an processors example of dissecting the log line into three fields (event_time, loglevel, json_message). Afterwards the recently extracted field json_message, whose value is a JSON object encoded as a string, will be decoded into an JSON structure:
...
filebeat.inputs:
- type: log
paths:
- path to your logfile
processors:
- dissect:
tokenizer: '%{event_time} %{loglevel} %{json_message}'
field: "message"
target_prefix: "dissect"
- decode_json_fields:
fields: ["dissect.json_message"]
target: ""
- drop_fields:
fields: ["dissect.json_message"]
...
If you want to practice the filebeat processors, try to set the correct event timestamp, taken from the encoded json and written into #timestamp using the timestamp processor.
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:
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
use this configuration in your logstash filter
filter {json{ source => "message" target => "message1" }
mutate{ remove_field => [ "message" ]}}
I am using Filbeat for log aggregation, which takes the logs to Kibana. Below is my error message that needs to be directed to Kibana:
2017-04-17 15:45:47,154 [JCO.ServerThread-8] ERROR com.webservice.AxisWebServiceClient - Client error
2017-04-17 15:45:47,154 [JCO.ServerThread-8] ERROR com.webservice.AxisWebServiceClient - The XML request is invalid. Fix the request and resend.
310,273,990
310,292,500
360,616,489
2017-04-04 12:47:09,362 [JCO.ServerThread-3] INFO com.app.Listener - End RFC_CALCULATE_TAXES_DOC
2017-04-04 12:47:09,362 [JCO.ServerThread-3] DEBUG com.Time - RFC_CALCULATE_TAXES_DOC,DEC[2],Total Time,39
i want only to have 2017-04-17 15:45:47,154 [JCO.ServerThread-8]ERROR and lines below the error to be send to Kibana, but i do get the INFO part as well
Below is filbeat.yml file
filebeat:
prospectors:
-
paths:
- /apps/global/vertex/SIC_HOME_XEC/logs/sic.log
input_type: log
exclude_lines: ['^INFO']
#include_lines: 'ERROR'
multiline:
pattern: '^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2},\d{3}\s\[[A-Za-z0-9.-]*\]\s[E]RROR'
negate: true
match: after
Request veterans help to select only the ERROR message pattern using regex.
In order to extract the error messages as a group, you'll need to modify your regex as following:
^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2},\d{3}\s\[[A-Za-z0-9.-]*\]\sERROR (\w.+)
Explanation:
(\w.+)
This creates a group with all characters and the dot character, which captures the error message.
I have installed sematext logagent https://sematext.github.io/logagent-js/installation/
Configured it to output to elasticsearch and all is good but one thing which i spent this all day trying to do.
There is 0, null, none information on how to debug parsers. I start logagent with "logagent --config logagent.yml -v -j", yml file bellow
options:
printStats: 30
# don't write parsed logs to stdout
suppress: false
# Enable/disable GeoIP lookups
# Startup of logagent might be slower, when downloading the GeoIP database
geoipEnabled: false
# Directory to store Logagent status nad temporary files
diskBufferDir: ./tmp
input:
files:
- '/var/log/messages'
- '/var/log/test'
patterns:
sourceName: !!js/regexp /test/
match:
- type: mysyslog
regex: !!js/regexp /([a-z]){2}(.*)/
fields: [message,severity]
dateFormat: MMM DD HH:mm:ss
output:
elasticsearch:.
module: elasticsearch
url: http://host:9200
index: mysyslog
stdout: yaml # use 'pretty' for pretty json and 'ldjson' for line delimited json (default)
I would expect (based on the scares documentation) that this would split each line of test file into 2, example 'ggff', 'gg' would be message, 'ff' would be severity, but all i can see in my kibana is that 'ggff' is a message and severity is defaulted (?) to info. The problem is, i dont know where the problem is. Does it skip my pattern, does match in my pattern fail ? any help would be VERY appreciated.
Setting 'debug: true' in patterns.yml prints detailed info about matched patterns.
https://github.com/sematext/logagent-js/blob/master/patterns.yml#L36
Watch Logagent issue #69 (https://github.com/sematext/logagent-js/issues/69) for additional improvements.
The docs moved to http://sematext.com/docs/logagent/ . I recommend www.regex101.com to test regular expressions (please use JavaScript regex syntax).
Examples of Syslog messages in /var/log are in the default pattern library:
https://github.com/sematext/logagent-js/blob/master/patterns.yml#L498
I'm trying to use the _analyze api with text that looks like this:
--- some -- text ---
This request works as expected:
curl localhost:9200/my_index/_analyze -d '--'
{"tokens":[]}
However, this one fails:
curl localhost:9200/medical_documents/_analyze -d '---'
---
error:
root_cause:
- type: "illegal_argument_exception"
reason: "Malforrmed content, must start with an object"
type: "illegal_argument_exception"
reason: "Malforrmed content, must start with an object"
status: 400
Considering the formatting of the response, i assume that elasticsearch tried to parse the request as yaml and failed.
If that is the case, how can i disable yml parsing, or _analyze a text that starts with --- ?
The problem is not the yaml parser. The problem is that you are trying to create a type.
The following is incorrect(will give you Malforrmed content, must start with an object error)
curl localhost:9200/my_index/medical_documents/_analyze -d '---'
This will give you no error, but is incorrect. Because it will tell elastic to create a new type.
curl localhost:9200/my_index/medical_documents/_analyze -d '{"analyzer" : "standard","text" : "this is a test"}'
Analyzers are created Index level. verify with:
curl -XGET 'localhost:9200/my_index/_settings'<br/>
So the proper way is:
curl -XGET 'localhost:9200/my_index/_analyze' -d '{"analyzer" : "your_analyzer_name","text" : "----"}'
Previously need to create the analyzer.