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Reindexing Elasticsearch with Logstash 2.0
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| input { | |
| elasticsearch { | |
| hosts => [ "HOSTNAME_HERE" ] | |
| port => "9200" | |
| index => "INDEXNAME_HERE" | |
| size => 1000 | |
| scroll => "5m" | |
| docinfo => true | |
| scan => true | |
| } | |
| } | |
| output { | |
| elasticsearch { | |
| hosts => [ "HOSTNAME_HERE" ] | |
| index => "%{[@metadata][_index]}" | |
| document_type => "%{[@metadata][_type]}" | |
| document_id => "%{[@metadata][_id]}" | |
| } | |
| stdout { | |
| codec => "dots" | |
| } | |
| } |
Can anybody please explain that scroll option? I do reindex with logstash and it loops endlessly - the data from source index is randomly duplicated to output
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Reindex API is a nice option:
https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-reindex.html#_reindex_daily_indices
Also look into automatic scroll slicing that allows scrolls to be processed by multiple threads in parallel giving a nice speed boost.