pierluigi-failla / elastic_dumper

Dump and Restore Elastic Indices on Disk

Dump and Restore Elastic Indices on Disk

Sometimes could be helpful to dump the documents in an Elastic index on disk so that can be "cold" stored and eventually restored later. ElasticDumper allows to dump on disk a set of zipped files containing an index (or a part of it) and if necessary allows to restore it later.

Easy like:

dumper = ElasticDumper(hosts=['localhost:9200', ], index='my_index', doc_type='my_doc_type')

query = {
    'query': {
      'bool': {
          'must': [
                  {'match_all': {}},
              ],
      },
  },
}
dumper.dump(query=query, dump_path='my_index_dump', raw=True)

this will create a folder named my_index_dump which contains:

• a mapping.json file which contains the specific mapping for the index
• subfolder data containing one or more data_#.zip files

In order to restore you can just:

dumper.restore(dump_path='my_index_dump', index_name='restored_my_index', doc_type='my_doc_type')

this will take care of creating the index with proper mapping and bulk store the data from the data_#.zip files.

Few customization are available, for those take a look to the code ElasticDumper.