How to copy and paste data

Elastic Stack Elasticsearch
1

Hi team,

How to merges data from cluster A to cluster B?
i use
POST /_snapshot/backup/snapshot_one/_restore
{
"indices": "news",
"ignore_unavailable": "true"

}

but it will overwrite my original data inside the nodes.
How to only copy and paste the index?

Thanks and best regards
Sharon

2

May be reindex from remote API can help

3

Hi...
Reindex mean my original index name rename?

POST /_reindex
{
"source": {
"index": "news"
},
"dest": {
"index": "news_data"
}
}
For example: my current index name is /news/, after reindex will be "/news_data",

is correct my understanding?
Sorry ya, i already saw this command before, but i not very understand about reindexx..

Thanks

4

You can reindex from another cluster

5

The command is as below right:

POST _reindex
{
"source": {
"remote": {
"host": "http://otherhost:9200",
"username": "user",
"password": "pass"
},
"index": "source",
"query": {
"match": {
"test": "data"
}
}
},
"dest": {
"index": "dest"
}
}

for host, how to configuration if local host to local host, and 9200 is same?
"host": "http://otherhost:9200",

is this "test": "data" is default? what meaning of it?

6

You said you want to merge from cluster A to cluster B? So you have different nodes, right?

7

I need merge together into same nodes.
Mean is my data at D:\Backup_data, but this backup data need paste into elasticsearch 2.4 D:\elasticsearch\data\elasticsearch\nodes\0\indices\news.
i need only paste into same index without affected my current data at elasticsearch 2.4 and without change index name.

I'm sorry for confuse you all..

Thanks and best regards
Sharon

8

Merging data on file system level is not possible.

If you have 2 clusters you can read from one the documents and index them into the second cluster. So technically it will "merge" data on a document level.

9

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