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On Sat, Aug 22, 2015 at 9:31 PM, Zheng Lin Edwin Yeo <edwinye...@gmail.com>
wrote:
> Hi,
>
> I'm using Solr 5.2.1, and I've indexed about 1GB of data into Solr.
>
> However, I find that clustering is exceeding slow after I index this 1GB of
> data. It took almost 30 seconds to return the cluster results when I set it
> to cluster the top 1000 records, and still take more than 3 seconds when I
> set it to cluster the top 100 records.
>
> Is this speed normal? Cos i understand Solr can index terabytes of data
> without having the performance impacted so much, but now the collection is
> slowing down even with just 1GB of data.
>
> Below is my clustering configurations in solrconfig.xml.
>
> <requestHandler name="/clustering"
> startup="lazy"
> enable="${solr.clustering.enabled:true}"
> class="solr.SearchHandler">
> <lst name="defaults">
> <str name="echoParams">explicit</str>
> <int name="rows">1000</int>
> <str name="wt">json</str>
> <str name="indent">true</str>
> <str name="df">text</str>
> <str name="fl">null</str>
>
> <bool name="clustering">true</bool>
> <bool name="clustering.results">true</bool>
> <str name="carrot.title">subject content tag</str>
> <bool name="carrot.produceSummary">true</bool>
>
> <int name="carrot.fragSize">20</int>
> <!-- the maximum number of labels per cluster -->
> <int name="carrot.numDescriptions">20</int>
> <!-- produce sub clusters -->
> <bool name="carrot.outputSubClusters">false</bool>
> <str name="LingoClusteringAlgorithm.desiredClusterCountBase">7</str>
>
> <!-- Configure the remaining request handler parameters. -->
> <str name="defType">edismax</str>
> </lst>
> <arr name="last-components">
> <str>clustering</str>
> </arr>
> </requestHandler>
>
>
> Regards,
> Edwin
>
