QTime > prepare+process

[Strucken, Michael]

Hi,

I'm wondering why some of our queries take more than a second and started to 
debug with debugQuery=true.

QTime is 2.028s
Measured response time on client is 2.0566s

But timing only sums up to 204ms:

        prepare
                org.apache.solr.handler.component.QueryComponent: 0
                org.apache.solr.handler.component.FacetComponent: 0
                org.apache.solr.handler.component.MoreLikeThisComponent: 0
                org.apache.solr.handler.component.HighlightComponent: 0
                org.apache.solr.handler.component.StatsComponent: 0
                org.apache.solr.handler.component.SpellCheckComponent: 0
                org.apache.solr.handler.component.DebugComponent: 0
        process
                org.apache.solr.handler.component.QueryComponent: 172
                org.apache.solr.handler.component.FacetComponent: 0
                org.apache.solr.handler.component.MoreLikeThisComponent: 0
                org.apache.solr.handler.component.HighlightComponent: 16
                org.apache.solr.handler.component.StatsComponent: 0
                org.apache.solr.handler.component.SpellCheckComponent: 0
                org.apache.solr.handler.component.DebugComponent: 16

Where is the rest of the time spent?

We use sharding and I'm querying 12 shards in the example above. Is that the 
reason? I thought QTime is prepare+process.

Best regards,
Michael