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https://issues.apache.org/jira/browse/SOLR-1524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jan Høydahl closed SOLR-1524.
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Resolution: Duplicate
Continue discussions in SOLR-1726 which tries to solve the same issue
SPRING_CLEANING_2013
> proposal on distributed search
> ------------------------------
>
> Key: SOLR-1524
> URL: https://issues.apache.org/jira/browse/SOLR-1524
> Project: Solr
> Issue Type: Sub-task
> Components: clients - java
> Reporter: johnson.hong
>
> Hi,all.
> some days ago,I put a question that "why it gets slower while keep on
> increasing the start value accross distributed search ?".
> And one reply by Shalin Shekhar Mangar was "distributed search fetches
> start+rows documents from each shard in order to correctly merge the results".
> After this I read the source code,and I found query across distributed
> search would be separated into nshards' query.
> Each shard query will be excute as follows:
> 1.get ids of matched documents into DocList //take little time
> 2.get all documents by id which result in step 1. //take little time
> 3.write all the documents found to binary string
> 4.parse the binary string back to SolrDocumentList // step 4 take
> almost all the time used
> From above,I propose :It is not necessary to execute step 3 and step 4 even
> step 2,the ids found is enough to merge results,isn't it?
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