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[英]Moving data from oine Elasticsearch index to another with higher number of shards or increasing shard number in existing index
[英]How to efficiently move data from elasticsearch index (with one shard) to another index (with 5 shards)?
我有一個Elasticsearch索引,它在單個分片的單個節點上包含大約5 GB的數據。 現在,我創建了另一個索引,該索引的設置與舊索引相同,但是number_of_shards為5而不是1。
我正在尋找最有效的方法來將數據從舊索引復制到新索引,而不會造成任何停機。
我建議為此使用Logstash 。 您可以使用以下配置。 確保替換源主機和目標主機,以及索引和類型名稱以匹配您的本地環境。
文件:reindex.conf
input {
elasticsearch {
hosts => "localhost:9200" <---- your source host
index => "my_source_index"
}
}
filter {
mutate {
remove_field => [ "@version", "@timestamp" ]
}
}
output {
elasticsearch {
host => "localhost" <--- your target host
port => 9200
protocol => "http"
manage_template => false
index => "my_target_index"
document_type => "my_type"
workers => 5
}
}
然后您可以使用
bin/logstash -f reindex.conf
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