Java High Level Rest Client cannot parse weighted_avg result

[xpando]

Elasticsearch version (bin/elasticsearch --version):
"version" : {
"number" : "6.5.2",
"build_flavor" : "default",
"build_type" : "rpm",
"build_hash" : "9434bed",
"build_date" : "2018-11-29T23:58:20.891072Z",
"build_snapshot" : false,
"lucene_version" : "7.5.0",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
}

High level rest client version from build.gradle:
compile group: 'org.elasticsearch', name: 'elasticsearch', version: '6.5.4'
compile group: 'org.elasticsearch.client', name: 'elasticsearch-rest-high-level-client', version: '6.5.4'

Plugins installed:
[]

JVM version (java -version):
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

OS version (uname -a if on a Unix-like system):
Darwin dfindley-macbook.local 18.2.0 Darwin Kernel Version 18.2.0: Fri Oct 5 19:41:49 PDT 2018; root:xnu-4903.221.2~2/RELEASE_X86_64 x86_64

Description of the problem including expected versus actual behavior:

Steps to reproduce:

1. create a terms aggregation with a weighted_avg sub aggregation.

The query is produced just fine and a correct response is returned from the ElasticSearch server but an exception is thrown on parsing the result. See log below.

Provide logs (if relevant):

org.elasticsearch.common.xcontent.NamedObjectNotFoundException: [1:389] unable to parse Aggregation with name [weighted_avg]: parser not found
	at org.elasticsearch.common.xcontent.NamedXContentRegistry.parseNamedObject(NamedXContentRegistry.java:132)
	at org.elasticsearch.common.xcontent.support.AbstractXContentParser.namedObject(AbstractXContentParser.java:433)
	at org.elasticsearch.common.xcontent.XContentParserUtils.parseTypedKeysObject(XContentParserUtils.java:153)
	at org.elasticsearch.search.aggregations.bucket.terms.ParsedTerms$ParsedBucket.parseTermsBucketXContent(ParsedTerms.java:139)
	at org.elasticsearch.search.aggregations.bucket.terms.ParsedLongTerms$ParsedBucket.fromXContent(ParsedLongTerms.java:82)
	at org.elasticsearch.search.aggregations.ParsedMultiBucketAggregation.lambda$declareMultiBucketAggregationFields$0(ParsedMultiBucketAggregation.java:75)
	at org.elasticsearch.common.xcontent.ObjectParser.parseValue(ObjectParser.java:314)
	at org.elasticsearch.common.xcontent.ObjectParser.parseArray(ObjectParser.java:308)
	at org.elasticsearch.common.xcontent.ObjectParser.parseSub(ObjectParser.java:329)
	at org.elasticsearch.common.xcontent.ObjectParser.parse(ObjectParser.java:168)
	at org.elasticsearch.common.xcontent.ObjectParser.parse(ObjectParser.java:131)
	at org.elasticsearch.search.aggregations.bucket.terms.ParsedLongTerms.fromXContent(ParsedLongTerms.java:42)
	at org.elasticsearch.client.RestHighLevelClient.lambda$getDefaultNamedXContents$38(RestHighLevelClient.java:1850)
	at org.elasticsearch.common.xcontent.NamedXContentRegistry.parseNamedObject(NamedXContentRegistry.java:141)
	at org.elasticsearch.common.xcontent.support.AbstractXContentParser.namedObject(AbstractXContentParser.java:433)
	at org.elasticsearch.common.xcontent.XContentParserUtils.parseTypedKeysObject(XContentParserUtils.java:153)
	at org.elasticsearch.search.aggregations.Aggregations.fromXContent(Aggregations.java:141)
	at org.elasticsearch.action.search.SearchResponse.innerFromXContent(SearchResponse.java:289)
	at org.elasticsearch.action.search.SearchResponse.fromXContent(SearchResponse.java:248)
	at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:1793)
	at org.elasticsearch.client.RestHighLevelClient.lambda$performRequestAndParseEntity$9(RestHighLevelClient.java:1526)
	at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1610)
	at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1563)
	at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1525)
	at org.elasticsearch.client.RestHighLevelClient.search(RestHighLevelClient.java:990)

[polyfractal]

The weighted avg had some issues which were fixed in 6.5.4: #36525

Could you try on the newer version and see if that fixes your issues?

[elasticmachine]

Pinging @elastic/es-analytics-geo

[elasticmachine]

Pinging @elastic/es-core-features

[xpando]

I did run it on the latest 6.5.4 and still had the problem. I originally had this issue: #36525 and I started using the 6.5.4-SNAPSHOT builds a couple of days ago which fixed that issue but not the one I'm reporting here. Today I upgraded to the released 6.5.4 version and it still has a problem parsing the query result. I can take the generated JSON query that is being sent to ES and use curl/postman to verify that the query works and returns expected data but executing the query via the high level rest client produces the above exception when parsing the response.

[xpando]

I created the following integration test to reproduce the issue: xpando@33f9eb7

Produced the same error:

nested: NamedObjectNotFoundException[[1:284] unable to parse Aggregation with name [weighted_avg]: parser not found];

Let me know if you'd prefer a PR for the integration test.

Test run details:

<testsuite errors="1" failures="0" tests="1" skipped="0" name="org.elasticsearch.client.SearchIT" hostname="nohost.nodomain" time="5.249" timestamp="2018-12-21T17:25:58">
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      <property name="es.scripting.update.ctx_in_params" value="false"/>
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      <property name="java.awt.graphicsenv" value="sun.awt.CGraphicsEnvironment"/>
      <property name="java.awt.headless" value="true"/>
      <property name="java.awt.printerjob" value="sun.lwawt.macosx.CPrinterJob"/>
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   </properties>
   <testcase classname="org.elasticsearch.client.SearchIT" name="testSearchWithTermsAndWeightedAvg" time="4.289">
      <error message="Failed execution" type="org.elasticsearch.common.util.concurrent.UncategorizedExecutionException">UncategorizedExecutionException[Failed execution]; nested: ExecutionException[java.io.IOException: Unable to parse response body for Response{requestLine=POST /index/_search?typed_keys=true&amp;ignore_unavailable=false&amp;expand_wildcards=open&amp;allow_no_indices=true&amp;search_type=query_then_fetch&amp;batched_reduce_size=512 HTTP/1.1, host=http://[::1]:54010, response=HTTP/1.1 200 OK}]; nested: IOException[Unable to parse response body for Response{requestLine=POST /index/_search?typed_keys=true&amp;ignore_unavailable=false&amp;expand_wildcards=open&amp;allow_no_indices=true&amp;search_type=query_then_fetch&amp;batched_reduce_size=512 HTTP/1.1, host=http://[::1]:54010, response=HTTP/1.1 200 OK}]; nested: XContentParseException[[1:284] [ParsedStringTerms] failed to parse field [buckets]]; nested: NamedObjectNotFoundException[[1:284] unable to parse Aggregation with name [weighted_avg]: parser not found];
	at __randomizedtesting.SeedInfo.seed([B6150ADDCD04C5E2:8882A6B4996CFB6C]:0)
	at org.elasticsearch.common.util.concurrent.FutureUtils.rethrowExecutionException(FutureUtils.java:101)
	at org.elasticsearch.common.util.concurrent.FutureUtils.get(FutureUtils.java:62)
	at org.elasticsearch.action.support.AdapterActionFuture.actionGet(AdapterActionFuture.java:34)
	at org.elasticsearch.client.ESRestHighLevelClientTestCase.execute(ESRestHighLevelClientTestCase.java:103)
	at org.elasticsearch.client.SearchIT.testSearchWithTermsAndWeightedAvg(SearchIT.java:385)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:947)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.util.concurrent.ExecutionException: java.io.IOException: Unable to parse response body for Response{requestLine=POST /index/_search?typed_keys=true&amp;ignore_unavailable=false&amp;expand_wildcards=open&amp;allow_no_indices=true&amp;search_type=query_then_fetch&amp;batched_reduce_size=512 HTTP/1.1, host=http://[::1]:54010, response=HTTP/1.1 200 OK}
	at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.getValue(BaseFuture.java:265)
	at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.get(BaseFuture.java:252)
	at org.elasticsearch.common.util.concurrent.BaseFuture.get(BaseFuture.java:94)
	at org.elasticsearch.common.util.concurrent.FutureUtils.get(FutureUtils.java:57)
	... 39 more
Caused by: java.io.IOException: Unable to parse response body for Response{requestLine=POST /index/_search?typed_keys=true&amp;ignore_unavailable=false&amp;expand_wildcards=open&amp;allow_no_indices=true&amp;search_type=query_then_fetch&amp;batched_reduce_size=512 HTTP/1.1, host=http://[::1]:54010, response=HTTP/1.1 200 OK}
	at org.elasticsearch.client.RestHighLevelClient$1.onSuccess(RestHighLevelClient.java:1723)
	at org.elasticsearch.client.RestClient$FailureTrackingResponseListener.onSuccess(RestClient.java:842)
	at org.elasticsearch.client.RestClient$1.completed(RestClient.java:543)
	at org.elasticsearch.client.RestClient$1.completed(RestClient.java:531)
	at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:119)
	at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.responseCompleted(DefaultClientExchangeHandlerImpl.java:177)
	at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:436)
	at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:326)
	at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:265)
	at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:81)
	at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:39)
	at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:114)
	at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162)
	at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337)
	at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
	at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276)
	at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
	at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:588)
	... 1 more
Caused by: org.elasticsearch.common.xcontent.XContentParseException: [1:284] [ParsedStringTerms] failed to parse field [buckets]
	at org.elasticsearch.common.xcontent.ObjectParser.parseValue(ObjectParser.java:316)
	at org.elasticsearch.common.xcontent.ObjectParser.parseArray(ObjectParser.java:308)
	at org.elasticsearch.common.xcontent.ObjectParser.parseSub(ObjectParser.java:329)
	at org.elasticsearch.common.xcontent.ObjectParser.parse(ObjectParser.java:168)
	at org.elasticsearch.common.xcontent.ObjectParser.parse(ObjectParser.java:131)
	at org.elasticsearch.search.aggregations.bucket.terms.ParsedStringTerms.fromXContent(ParsedStringTerms.java:44)
	at org.elasticsearch.client.RestHighLevelClient.lambda$getDefaultNamedXContents$37(RestHighLevelClient.java:1849)
	at org.elasticsearch.common.xcontent.NamedXContentRegistry.parseNamedObject(NamedXContentRegistry.java:141)
	at org.elasticsearch.common.xcontent.support.AbstractXContentParser.namedObject(AbstractXContentParser.java:433)
	at org.elasticsearch.common.xcontent.XContentParserUtils.parseTypedKeysObject(XContentParserUtils.java:153)
	at org.elasticsearch.search.aggregations.Aggregations.fromXContent(Aggregations.java:141)
	at org.elasticsearch.action.search.SearchResponse.innerFromXContent(SearchResponse.java:289)
	at org.elasticsearch.action.search.SearchResponse.fromXContent(SearchResponse.java:248)
	at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:1793)
	at org.elasticsearch.client.RestHighLevelClient.lambda$performRequestAsyncAndParseEntity$12(RestHighLevelClient.java:1636)
	at org.elasticsearch.client.RestHighLevelClient$1.onSuccess(RestHighLevelClient.java:1721)
	... 18 more
Caused by: org.elasticsearch.common.xcontent.NamedObjectNotFoundException: [1:284] unable to parse Aggregation with name [weighted_avg]: parser not found
	at org.elasticsearch.common.xcontent.NamedXContentRegistry.parseNamedObject(NamedXContentRegistry.java:132)
	at org.elasticsearch.common.xcontent.support.AbstractXContentParser.namedObject(AbstractXContentParser.java:433)
	at org.elasticsearch.common.xcontent.XContentParserUtils.parseTypedKeysObject(XContentParserUtils.java:153)
	at org.elasticsearch.search.aggregations.bucket.terms.ParsedTerms$ParsedBucket.parseTermsBucketXContent(ParsedTerms.java:139)
	at org.elasticsearch.search.aggregations.bucket.terms.ParsedStringTerms$ParsedBucket.fromXContent(ParsedStringTerms.java:83)
	at org.elasticsearch.search.aggregations.ParsedMultiBucketAggregation.lambda$declareMultiBucketAggregationFields$0(ParsedMultiBucketAggregation.java:75)
	at org.elasticsearch.common.xcontent.ObjectParser.parseValue(ObjectParser.java:314)
	... 33 more
</error>
   </testcase>
   <system-out><![CDATA[[2018-12-21T17:25:59,306][WARN ][o.e.b.JNANatives         ] [[SUITE-SearchIT-seed#[B6150ADDCD04C5E2]]] Unable to lock JVM Memory: error=78, reason=Function not implemented
[2018-12-21T17:25:59,309][WARN ][o.e.b.JNANatives         ] [[SUITE-SearchIT-seed#[B6150ADDCD04C5E2]]] This can result in part of the JVM being swapped out.
[2018-12-22T04:25:59,617][INFO ][o.e.c.SearchIT           ] [testSearchWithTermsAndWeightedAvg] before test
[2018-12-22T04:25:59,714][INFO ][o.e.c.SearchIT           ] [testSearchWithTermsAndWeightedAvg] initializing REST clients against [http://[::1]:54010]
[2018-12-22T04:26:00,710][WARN ][o.e.c.RestClient         ] [[I/O dispatcher 2]] request [PUT http://[::1]:54010/index/type/1] returned 1 warnings: [299 Elasticsearch-6.5.5-SNAPSHOT-33f9eb7 "the default number of shards will change from [5] to [1] in 7.0.0; if you wish to continue using the default of [5] shards, you must manage this on the create index request or with an index template" "Fri, 21 Dec 2018 23:26:00 GMT"]
[2018-12-22T04:26:01,376][WARN ][o.e.c.RestClient         ] [[I/O dispatcher 2]] request [PUT http://[::1]:54010/index1/doc/1] returned 1 warnings: [299 Elasticsearch-6.5.5-SNAPSHOT-33f9eb7 "the default number of shards will change from [5] to [1] in 7.0.0; if you wish to continue using the default of [5] shards, you must manage this on the create index request or with an index template" "Fri, 21 Dec 2018 23:26:00 GMT"]
[2018-12-22T04:26:01,929][WARN ][o.e.c.RestClient         ] [[I/O dispatcher 2]] request [PUT http://[::1]:54010/index2] returned 1 warnings: [299 Elasticsearch-6.5.5-SNAPSHOT-33f9eb7 "the default number of shards will change from [5] to [1] in 7.0.0; if you wish to continue using the default of [5] shards, you must manage this on the create index request or with an index template" "Fri, 21 Dec 2018 23:26:01 GMT"]
[2018-12-22T04:26:02,594][WARN ][o.e.c.RestClient         ] [[I/O dispatcher 2]] request [PUT http://[::1]:54010/index3/doc/5] returned 1 warnings: [299 Elasticsearch-6.5.5-SNAPSHOT-33f9eb7 "the default number of shards will change from [5] to [1] in 7.0.0; if you wish to continue using the default of [5] shards, you must manage this on the create index request or with an index template" "Fri, 21 Dec 2018 23:26:02 GMT"]
[2018-12-22T04:26:03,159][WARN ][o.e.c.RestClient         ] [[I/O dispatcher 2]] request [PUT http://[::1]:54010/index4] returned 1 warnings: [299 Elasticsearch-6.5.5-SNAPSHOT-33f9eb7 "the default number of shards will change from [5] to [1] in 7.0.0; if you wish to continue using the default of [5] shards, you must manage this on the create index request or with an index template" "Fri, 21 Dec 2018 23:26:02 GMT"]
[2018-12-22T04:26:03,883][INFO ][o.e.c.SearchIT           ] [testSearchWithTermsAndWeightedAvg] after test
]]></system-out>
   <system-err><![CDATA[REPRODUCE WITH: ./gradlew :client:rest-high-level:integTestRunner -Dtests.seed=B6150ADDCD04C5E2 -Dtests.class=org.elasticsearch.client.SearchIT -Dtests.method="testSearchWithTermsAndWeightedAvg" -Dtests.security.manager=true -Dtests.locale=luy-KE -Dtests.timezone=Asia/Dushanbe -Dcompiler.java=11 -Druntime.java=11
NOTE: leaving temporary files on disk at: /Users/david/Code/elasticsearch/client/rest-high-level/build/testrun/integTestRunner/J0/temp/org.elasticsearch.client.SearchIT_B6150ADDCD04C5E2-001
NOTE: test params are: codec=Asserting(Lucene70): {}, docValues:{}, maxPointsInLeafNode=1286, maxMBSortInHeap=7.109953822562061, sim=RandomSimilarity(queryNorm=false): {}, locale=luy-KE, timezone=Asia/Dushanbe
NOTE: Mac OS X 10.14.2 x86_64/AdoptOpenJDK 11.0.1 (64-bit)/cpus=12,threads=1,free=496531312,total=536870912
NOTE: All tests run in this JVM: [SearchIT]
]]></system-err>
</testsuite>

[xpando]

Update: I fixed this issue in my fork and the integration test is passing. I'll submit a pull request shortly with the fix.

[polyfractal]

Thanks for fixing this @xpando! Sorry for being absent, was off on holiday :)

[xpando]

No worries! Glad I could help.