Elasticsearch indexing -

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i using elasticsearch in project. have 2 indexes 1 contains list of employ id’s , other contains employee_name, joining date , employee id. there way can use employee id 1 index , find employee information other index?

index list of employee id:

june 1st 2015, 12:02:15.209 message:8997745

june 1st 2015, 12:02:15.210 message:8997728

june 1st 2015, 12:02:15.211 message:8997719

index list of employee information:

june 1st 2015, 12:02:15.205 message: bob,2015-05-31,8997745

june 1st 2015, 12:02:15.206 message: james,2015-05-31,8997728

june 1st 2015, 12:02:15.207 message: tom,2015-05-31,8997719

also, noticed each entry in index has unique id. there way can provide unique id index entries same index have same index id?

thanks in advance! 

depending on needs, can either in code (read employee_id index1 , ids filter lookup (https://www.elastic.co/guide/en/elasticsearch/reference/1.7/query-dsl-ids-filter.html).

this might not practical large lists of employees. if have large list in first index has employee ids, might useful scan-scroll query on second index , check employee ids query first index (https://www.elastic.co/guide/en/elasticsearch/guide/current/scan-scroll.html?q=scan%20scroll). of course, lose sorting.

a more advanced option really large datasets might use elasticsearch-hadoop , write spark sql query or that. depends on use case. why there first index employee ids?


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