Hey guys, I’m getting NullPointerException while using a *significant_terms* aggregation. It happens in this line:
org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38) The error is in the deserialization: *Failed to deserialize response of type [org.elasticsearch.action.search.SearchResponse]* I’m using the Java API. I just printed the request and manually did it through the REST API and everything went fine. It happens only when using the Java API. I'm using ES 1.3.2. *The printed search request:* > { > "from" : 0, > "size" : 6, > "timeout" : 30000, > "query" : { > "filtered" : { > "query" : { > "query_string" : { > "query" : "ayrton senna", > "fields" : [ "title^2.0", "description" ], > "default_operator" : "and" > } > }, > "filter" : { > "bool" : { > "must" : [ { > "range" : { > "created_at" : { > "from" : null, > "to" : "2014-09-19T20:28:30.000Z", > "include_lower" : true, > "include_upper" : true > }, > "_cache" : true > } > }, { > "range" : { > "published_at" : { > "from" : null, > "to" : "2014-09-19T20:28:30.000Z", > "include_lower" : true, > "include_upper" : true > }, > "_cache" : true > } > }, { > "range" : { > "published_at" : { > "from" : "2014-08-20T20:28:30.000Z", > "to" : "2014-09-19T20:28:30.000Z", > "include_lower" : true, > "include_upper" : true > }, > "_cache" : false > } > } ] > } > } > } > }, > "fields" : [ ], > "aggregations" : { > "topics" : { > "significant_terms" : { > "field" : "topic_ids", > "size" : 20 > } > } > } > } *The complete error stacktrace:* [ERROR] 2014-09-19 20:29:13.177 c.b.s.SearchServlet - org.elasticsearch.transport.TransportSerializationException: Failed to deserialize response of type [org.elasticsearch.action.search.SearchResponse] org.elasticsearch.transport.TransportSerializationException: Failed to deserialize response of type [org.elasticsearch.action.search.SearchResponse] at org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:152) at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:127) at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462) at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443) at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303) at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318) at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NullPointerException at org.elasticsearch.search.aggregations.bucket.significant.heuristics.SignificanceHeuristicStreams.read(SignificanceHeuristicStreams.java:38) at org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms.readFrom(SignificantLongTerms.java:126) at org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:50) at org.elasticsearch.search.aggregations.bucket.significant.SignificantLongTerms$1.readResult(SignificantLongTerms.java:46) at org.elasticsearch.search.aggregations.InternalAggregations.readFrom(InternalAggregations.java:190) at org.elasticsearch.search.aggregations.InternalAggregations.readAggregations(InternalAggregations.java:172) at org.elasticsearch.search.internal.InternalSearchResponse.readFrom(InternalSearchResponse.java:116) at org.elasticsearch.search.internal.InternalSearchResponse.readInternalSearchResponse(InternalSearchResponse.java:105) at org.elasticsearch.action.search.SearchResponse.readFrom(SearchResponse.java:227) at org.elasticsearch.transport.netty.MessageChannelHandler.handleResponse(MessageChannelHandler.java:150) ... 23 more *The (Scala) code I used to generate the request :* val request = .... > val topicsAggregation = > significantTerms("topics").field("topic_ids").size(20) > request.addAggregation(topicsAggregation) *The code to retrieve the aggregation (although it seems it never reaches here):* > val terms: SignificantTerms = response.getAggregations.get("topics") Any ideas? Thanks! Felipe Hummel -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/5a511b6b-a9bc-47dd-b3bd-84f9a7ac5a7f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.