Hello,
I'm trying to reconcile my understanding of how distributed queries are handled
by SolrCloud with what I see in the server (tomcat running solr) logs.
The setup: Solr 4.0 GA, single collection, one shard, two nodes (master and
replica), standalone zookeeper ensemble.
Client uses SolrJ CloudSolrServer to issue queries.
Looking at one of the solr instance's logs (same pattern for both master and
replica) while repeatedly running a query, I sometimes see just one line:
INFO [org.apache.solr.core.SolrCore ] webapp=/solr path=/select
params={start=0&q=<my_query>&wt=javabin&rows=10&version=2} hits=2 status=0
QTime=28
And sometimes I see the following 3 lines (for a single client request):
INFO [org.apache.solr.core.SolrCore ] webapp=/solr path=/select
params={fl=user_id,score&shard.url=<master_url>|<replica_url>/&NOW=1358538200298&start=0&q=<my_query>&distrib=false&isShard=true&wt=javabin&fsv=true&rows=10&version=2}
hits=2 status=0 QTime=14
INFO [org.apache.solr.core.SolrCore ] webapp=/solr path=/select
params={shard.url=<master_url>|<replica_url>/&NOW=1358538200298&start=0&q=<my_query>&ids=229,118671&distrib=false&isShard=true&wt=javabin&rows=10&version=2}
status=0 QTime=9
INFO [org.apache.solr.core.SolrCore ] webapp=/solr path=/select
params={start=0&q=<my_query>&wt=javabin&rows=10&version=2} hits=2 status=0
QTime=107
I thought that the client simply picks a node (master or replica in this case)
and that node will fully service the request given that it's a single shard
setup. But apparently I'm missing something - please help me understand what.
Thanks,
Ernest
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