问题
I am having a strange issue occur while utilizing the solr_query handler to make queries in Cassandra on my terminal.
When I perform normal queries on my table, I am having no issues, but when I use solr_query I get the following error:
Unable to complete request: one or more nodes were unavailable.
Other individuals who have experienced this problem seem unable to do any queries on their data whatsoever, whether or not it is solr_query. My problem only persists while using that handler.
Can anyone give me a suggestion for what the issue may be with my solr node.
ALSO -- I can do queries off of the Solr Admin page but like I said, am unable to do so on a terminal within my macbook.....
Here is the query I used, for reference:
cqlsh:demo> select * from device WHERE solr_query='id:[1 to 10000000000}';
More info:
This is how I created my KEYSPACE:
CREATE KEYSPACE demo WITH REPLICATION = {'class':'NetworkTopologyStrategy', 'Solr':1};
This is how I created the Solr core:
bin/dsetool create_core demo.device generateResources=true reindex=true
Performed a nodetool ring -h on my localhost and got this back:
Datacenter: Solr
Address Rack Status State Load Owns Token
127.0.0.1 rack1 Up Normal 2.8 MB 100.00% -673443545391973027
So it appears my node is up and normal..... Which leads me to believe it is an issue with the actual solr_query handler.
I also found the requestHandler within my config file
回答1:
Your query isn't probably correct: id:[1 to 10000000000}
The "unavailable nodes" error is unfortunately a red herring, as that's the way Thrift (which cqlsh in Cassandra 2.0 is based upon) translates given errors, while you should get a more meaningful error if you repeat the same query with a driver based on the native protocol.
来源：https://stackoverflow.com/questions/27966440/normal-query-on-cassandra-using-datastax-enterprise-works-but-not-solr-query