Varun Thacker created SOLR-9302:
-----------------------------------
Summary: Better error message when running SQL queries in
standalone mode
Key: SOLR-9302
URL: https://issues.apache.org/jira/browse/SOLR-9302
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Varun Thacker
I tried running sql queries on the techproducts example by mistake. When I ran
a query I got an exception like this
{code}
{"result-set":{"docs":[
{"EXCEPTION":"java.net.UnknownHostException: null: unknown
error","EOF":true,"RESPONSE_TIME":5}]}}
{code}
Here is the stack trace from the solr logs
{code}
ERROR - 2016-07-13 13:07:01.496; [ x:techproducts]
org.apache.solr.common.SolrException; org.apache.solr.common.SolrException:
java.net.UnknownHostException: null: unknown error
at
org.apache.solr.common.cloud.SolrZkClient.<init>(SolrZkClient.java:169)
at
org.apache.solr.common.cloud.SolrZkClient.<init>(SolrZkClient.java:115)
at
org.apache.solr.common.cloud.SolrZkClient.<init>(SolrZkClient.java:105)
at
org.apache.solr.common.cloud.ZkStateReader.<init>(ZkStateReader.java:227)
at
org.apache.solr.client.solrj.impl.CloudSolrClient.connect(CloudSolrClient.java:502)
at
org.apache.solr.client.solrj.io.SolrClientCache.getCloudSolrClient(SolrClientCache.java:50)
at
org.apache.solr.client.solrj.io.stream.CloudSolrStream.open(CloudSolrStream.java:298)
at
org.apache.solr.client.solrj.io.stream.SelectStream.open(SelectStream.java:184)
at
org.apache.solr.client.solrj.io.stream.ExceptionStream.open(ExceptionStream.java:51)
at
org.apache.solr.handler.StreamHandler$TimerStream.open(StreamHandler.java:423)
at
org.apache.solr.response.TextResponseWriter.writeTupleStream(TextResponseWriter.java:304)
at
org.apache.solr.response.TextResponseWriter.writeVal(TextResponseWriter.java:168)
at
org.apache.solr.response.JSONWriter.writeNamedListAsMapWithDups(JSONResponseWriter.java:183)
at
org.apache.solr.response.JSONWriter.writeNamedList(JSONResponseWriter.java:299)
at
org.apache.solr.response.JSONWriter.writeResponse(JSONResponseWriter.java:95)
at
org.apache.solr.response.JSONResponseWriter.write(JSONResponseWriter.java:60)
at
org.apache.solr.response.QueryResponseWriterUtil.writeQueryResponse(QueryResponseWriterUtil.java:65)
at
org.apache.solr.servlet.HttpSolrCall.writeResponse(HttpSolrCall.java:731)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:473)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:257)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:208)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1160)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:518)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.UnknownHostException: null: unknown error
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at
java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at
org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)
at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)
at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:380)
at
org.apache.solr.common.cloud.SolrZooKeeper.<init>(SolrZooKeeper.java:43)
at
org.apache.solr.common.cloud.ZkClientConnectionStrategy.createSolrZooKeeper(ZkClientConnectionStrategy.java:103)
at
org.apache.solr.common.cloud.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:37)
at
org.apache.solr.common.cloud.SolrZkClient.<init>(SolrZkClient.java:144)
... 44 more
{code}
We should respond back with a more useful message to the user in case sql
queries are been run in standalone mode
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