CODEWITHSUNDEEP
solrlucenesolr4
Paul
Paul

Reputation: 1194

How to merge the segments in Lucene(Solr)

I have a scenario that I need to merge the solr indexes online. I have a primary solr index of 100 Gb and it is serving the end users and it can't go offline for a moment. Everyday new lucene indexes(2 GB) are generated separately.

I have tried Merging Indexes: coreadmin

Even I tried the IndexWriter API AddIndexes. But no luck.

And it will create a new core or new folder. which means it will copy 100Gb every time to a new folder.

Is there a way I can do a segment level merging?

Upvotes: 3

Views: 474

Answers (1)

Karsten R.
Karsten R.

Reputation: 1758

Your question is about merging two cores.

I will answer for solr5.

You can merge with the core api. You can merge with lucene outsite from solr, create a core and then switch with the old one.

If you are using SolrCloud you can use a list of cores for your collection via ALIAS or Migrate Documents from new core to your central core.

Upvotes: 0

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