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logstash
Error: index_not_found_exception
Make sure index iot_log exist and create it if not: curl -X PUT “localhost:9200/iot_log” -H ‘Content-Type: application/json’ -d'{ “settings” : { “index” : { } }}’
Logstash optional fields in logfile
At it’s base, grok is based on regular expressions, so you can surround a pattern with ()? to make it optional — for example (%{NUMBER:requestId})?, If there isn’t a grok pattern that suits your needs, you can always create a named extraction like this: (?<version>[\d\.]+) which would extract into version, a string that has any … Read more
How do I match a newline in grok/logstash?
All GREEDYDATA is is .*, but . doesn’t match newline, so you can replace %{GREEDYDATA:message} with (?<message>(.|\r|\n)*)and get it to be truly greedy.
What is the format of logstash config file
The Logstash configuration file is a custom format developed by the Logstash folks using Treetop. The grammar itself is described in the source file grammar.treetop and compiled using Treetop into the custom grammar.rb parser. That parser is then used by the pipeline.rb file in order to set up the pipeline from the Logstash configuration. If … Read more
How to to log JS errors from a client into kibana?
When you say client, I’m assuming here that you mean a logging client and not a web client. First, make it a habit to log your errors in a common format. Logstash likes consistency, so if you’re putting text and JSON in the same output log, you will run into issues. Hint: log in JSON. … Read more
Change default mapping of string to “not analyzed” in Elasticsearch
Just create a template. run curl -XPUT localhost:9200/_template/template_1 -d ‘{ “template”: “*”, “settings”: { “index.refresh_interval”: “5s” }, “mappings”: { “_default_”: { “_all”: { “enabled”: true }, “dynamic_templates”: [ { “string_fields”: { “match”: “*”, “match_mapping_type”: “string”, “mapping”: { “index”: “not_analyzed”, “omit_norms”: true, “type”: “string” } } } ], “properties”: { “@version”: { “type”: “string”, “index”: “not_analyzed” … Read more
Kibana returns “Connection Failed”
I have faced similar kind of issue. If you are using elasticsearch-1.4 with Kibana-3 then add following parameters in elasticsearch.yml file http.cors.allow-origin: “/.*/” http.cors.enabled: true Reference, https://gist.github.com/rmoff/379e6ce46eb128110f38
Which Serilog sink to use for sending to Logstash?
The accepted answer was written before the sink Serilog.Sinks.Http existed. Instead of logging to file and having Filebeat monitoring it, one could have the HTTP sink post log events to the Logstash HTTP input plugin. This would mean fewer moving parts on the instances where the logs where created.
Sync postgreSql data with ElasticSearch
If you need to also be notified on DELETEs and delete the respective record in Elasticsearch, it is true that the Logstash jdbc input will not help. You’d have to use a solution working around the binlog as suggested here However, if you still want to use the Logstash jdbc input, what you could do … Read more