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README.md

Dynamic Synonym for ElasticSearch

The dynamic synonym plugin adds a synonym token filter that reloads the synonym file (local file or remote file) at given intervals (default 60s).

Version

dynamic synonym version ES version
master 7.x -> master
6.1.4 6.1.4
5.2.0 5.2.0
5.1.1 5.1.1
2.3.0 2.3.0
2.2.0 2.2.0
2.1.0 2.1.0
2.0.0 2.0.0
1.6.0 1.6.X

Installation

  1. mvn package

  2. copy and unzip target/releases/elasticsearch-analysis-dynamic-synonym-{version}.zip to your-es-root/plugins/dynamic-synonym

Example

{
	"index" : {
	    "analysis" : {
	        "analyzer" : {
	            "synonym" : {
	                "tokenizer" : "whitespace",
	                "filter" : ["remote_synonym"]
 	           }
	        },
	        "filter" : {
	            "remote_synonym" : {
	                "type" : "dynamic_synonym",
	                "synonyms_path" : "http://host:port/synonym.txt",
	                "interval": 30
	            },
	            "local_synonym" : {
	                "type" : "dynamic_synonym",
	                "synonyms_path" : "synonym.txt"
	            }
	        }
	    }
	}
}

Configuration

synonyms_path: A file path relative to the Elastic config file or an URL, mandatory

interval: Refresh interval in seconds for the synonym file, default: 60, optional

ignore_case: Ignore case in synonyms file, default: false, optional

expand: Expand, default: true, optional

lenient: Lenient on exception thrown when importing a synonym, default: false, optional

format: Synonym file format, default: '', optional. For WordNet structure this can be set to 'wordnet'

Update mechanism

  • Local files: Determined by modification time of the file, if it has changed the synonyms wil
  • Remote files: Reads out the Last-Modified and ETag http header. If one of these changes, the synonyms will be reloaded.

Note: File encoding should be an utf-8 text file.

About

The dynamic synonym plugin adds a synonym token filter that reloads the synonym file(local file or remote file) at given intervals (default 60s).

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