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https://issues.apache.org/jira/browse/SOLR-906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12655298#action_12655298
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Ryan McKinley commented on SOLR-906:
------------------------------------
One basic problem with calling add( SolrInputDocument) with the
CommonsHttpSolrServer is that it logs a request for each document. This can be
a substantial impact. For example while indexing 40K docs on my machine, it
takes ~3 1/2 mins. If I turn logging off the time drops to ! 2 1/2 mins. With
the streaming approach, the time drops to 20sec! Some of that is obviously
because it limits the logging:
{code}
INFO: {add=[id1,id2,id3,id4, ...(38293 more)]} 0 20714
{code}
> Buffered / Streaming SolrServer implementaion
> ---------------------------------------------
>
> Key: SOLR-906
> URL: https://issues.apache.org/jira/browse/SOLR-906
> Project: Solr
> Issue Type: New Feature
> Components: clients - java
> Reporter: Ryan McKinley
> Fix For: 1.4
>
>
> While indexing lots of documents, the CommonsHttpSolrServer add(
> SolrInputDocument ) is less then optimal. This makes a new request for each
> document.
> With a "StreamingHttpSolrServer", documents are buffered and then written to
> a single open Http connection.
> For related discussion see:
> http://www.nabble.com/solr-performance-tt9055437.html#a20833680
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