Is it possible to use logstash filters in sequence?
For example I want to parse message into json then newly created field split by character.
input => filter => filter => output => elasticsearch
Yes, it's mentioned in the official doc.
If you specify multiple filters, they are applied in the order of their appearance in the configuration file.
Yes. In filter conf file keep "field split by character" filter below the "json parsor" filter.
Related
I am trying to create an index in elasticsearch using the index => option for elasticsearch logstash output running on docker:
output {
elasticsearch {
cloud_id => "..."
data_stream => "true"
ssl => "true"
api_key => "..."
document_id => "%{_log_id}"
index => "%{target_index}"
}
}
If I comment the index line, the pipeline works and data is sent to the default index. However, with the index defined (with or without it being a constant string) the following error is given on launch before ingesting any data
elasticsearch - Invalid data stream configuration, following parameters are not supported: {"index"=>"%{target_index}"}
Where target_index is an entry in the JSON body parsed in filter.
And breaks with Could not execute action: PipelineAction::Create<firmware_pipeline> indicating that this is before the pipeline is actually triggered.
Not sure if I'm just reading the docs wrong but this seems to be what others are doing as well.
Logstash version: 7.13.2
When you use a data stream, events are automatically routed to indexes based on values in the [data_stream] field. You cannot have automatic routing at the same time as explicit routing with the index => "%{target_index}" option. That is what the following is telling you:
following parameters are not supported: {"index"=>"%{target_index}"}
Remove the index option if you want to use a data stream. If you want explicit routing, remove the data_stream option.
If you need data to go to both destinations, use a second output.
I need to insert a field for each event for the auditbeat data.
That is each document should contain a field "enviornment": "production"
Note: I need a solution not involving Logstash
How can I do this?.
you can do this using logstash and the mutate filter plugin. Something like this:
filter {
mutate {
add_field => { "enviornment" => "production" }
}
}
EDIT: without logstash. Since the beats are open source you can edit the beat to mach you specification. But this is clearly a bad solution. Another thing that you can check, is processors. But processors is to keep/drop fields and other tasks. I did not find a processor solution to your case.
For last, you have in the configuration file (yml), one field called fields.
Optional fields that you can specify to add additional information to the output. Fields can be scalar values, arrays, dictionaries, or any nested combination of these. By default, the fields that you specify here will be grouped under a fields sub-dictionary in the output document. To store the custom fields as top-level fields, set the fields_under_root option to true.
fields_under_root: true
fields:
enviornment: production
another_field: 1234
more info
Small part of my CSV log:
TAGS
contentms:Drupal;contentms.ver:7.1.8;vuln:rce;cve:CVE-2018-0111;
cve:CVE-2014-0160;vuln:Heartbleed;
contentms.ver:4.1.6;contentms:WordPress;tag:backdoor
tag:energia;
Idea is that I know nothing of the keys and values other than the format
key:value;key:value;key:value;key:value; etc
I just create an pattern with logstash plugin "kv"
kv {
source => "TAGS"
field_split => ";"
value_split => ":"
target => "TAGS"
}
I've been trying to get my data into Elastic for Kibana and some of it goes through. But for example keys contentms: and contentms.ver: don't get read. Also keys that do - only one value is searchable in Kibana. For example key cve: is seen on mutliple lines mutliple times in my log with different values but only this value is indexed cve:CVE-2014-0160 same problem for tag: and vuln: keys.
I've seen some similar problems and solutions with ruby, but any solutions with just kv? or change my log format around a bit?
I can't test it right now, but notice that you have both "contentms" (a string) and "contentms.ver", which probably looks to elasticsearch like a nested field ([contentms][ver]), but "contentms" was already defined as a string, so you can't nest beneath it.
After the cvs filter, try renaming "contentms" to "[contentms][name]", which would then be a peer to "[contentms][ver]".
You'd need to start with a new index to create this new mapping.
I have a hostname field that's coming in via filebeat to my logstash instance is getting passed to ElasticSearch where it's being treated as an analyzed field. That's causing issues, because the field itself needs to be reported on in it's totality.
Example: Knowing how many requests come to "prd-awshst-x-01" rather than splitting those out into prd, awshst, x, 01.
Does anyone have a lightweight way of doing this that can be used with visualizations?
Thanks,
We have to update mapping from analyzed to not_analyzed for specific field.
PUT/ mapping url/
{
property:{
field:{
text:"not_analyzed"
}
}
}
After updating the property please check is it reflected in mapping using GET method on mapping url.
Based on the title of your post, you already know that you need to change the mapping of the field to not_analyzed.
You should setup a template so that future indexes contain this mapping.
If you want to keep the existing data, you'll have to reindex it into a new index with the new mapping.
If you're using the default logstash template, it might be creating you a not_analyzed ".raw" field that you can use in visualizations in kibana.
The index template that is provided with Filebeat configures the hostname field as not_analyzed.
You should manually install the index template provided with Filebeat and then configure Logstash to write data to the Filebeat index as described in the docs.
This is what the elasticsearch output would look like. If you are processing other data through Logstash, then you might want to add a conditional around this output so that only beat events are sent via this output.
output {
elasticsearch {
hosts => "localhost:9200"
manage_template => false
index => "%{[#metadata][beat]}-%{+YYYY.MM.dd}"
document_type => "%{[#metadata][type]}"
}
}
I am using ELK and I need to filter all the documents with an unmatched COUNTRY (from geoip)
Theses properties looks like:
'IPCOUNTRY': '??'
But I just can't filter on this special value...
I tried
IPCOUNTRY:?? => ? is evaluated > returns all records > normal case-
IPCOUNTRY:\?\? => Doesn't return any document... but lucene documentation says it should be the good way of achieving this...
IPCOUNTRY:"??" => doesnt work
IPCOUNTRY:'??' => doesnt work
EDIT:
This case doesn't work too
- IPCOUNTRY:/[^A-Z]{2}/
Simple but boring issue ^^
Thanx!
You could try :
!IPCOUNTRY:"?"
-IPCOUNTRY:"?"
NOT IPCOUNTRY:"?"
If you have an unanalyzed IPCOUNTRY field, you can do something like :
!IPCOUNTRY.raw:"??"
This is an elasticsearch mapping issue. Punctuation is dropped. You'll need to set your field to an analyzer that would keep ?. Maybe keyword? or not_analyzed?
extract from https://github.com/elastic/kibana/issues/6561#issuecomment-197951710
If all of your fields have documents same as 'IPCOUNTRY': '??', then you can directly filter this field which will exclude the field from matches.
To directly add a filter you can do it in the following 2 ways:-
In Discover page open the text and find the field. Click on + magnifier to add the field as a filter.
In Discover page, on the left side where fields are listed. Click on field name & select the value portaying as ?? to add it as a filter.