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

1. mvn package

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

{ "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" } } }	} }

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

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

• 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.