# ElasticSearch High CPU usage 160 queries per second doesn't make sense **URL:** https://discuss.elastic.co/t/elasticsearch-high-cpu-usage-160-queries-per-second-doesnt-make-sense/23067 **Category:** Elasticsearch **Created:** [April 2, 2015, 2:57pm UTC](https://discuss.elastic.co/t/elasticsearch-high-cpu-usage-160-queries-per-second-doesnt-make-sense/23067 "2015-04-02T14:57:21Z") **Posts on this page:** 2 **Page:** 1
### Author: ![G\_Z](https://avatars.discourse-cdn.com/v4/letter/g/71e660/32.png) [@G\_Z](https://discuss.elastic.co/u/G_Z) #### Post date: [April 2, 2015, 2:57pm UTC](https://discuss.elastic.co/t/elasticsearch-high-cpu-usage-160-queries-per-second-doesnt-make-sense/23067/1 "2015-04-02T14:57:21Z")
**The Problem:** I'm running a elastic search server cluster with four index's one has 4.5 million documents the other has 13 million. The other index's are the marvel and the kibana and are very small. Whenever I get to about 150 queries per second with jmeter ("testing framework") The CPU will max out. The more I turn it up the more the CPU maxes out. From everything I read online about performance tuning it usually has memory issues but our box is running out of cpu way before memory and causing 6 second response times with the test. From my understanding the documents are cached in memory, so I don't understand why the cpu would be maxed out with just a simple query. **the setup:** ``` 3 x client nodes AWS m3.xlarge 4 cores 16gb 3 x master nodes AWS m3.medium 1 core 4gb <-i beleive 3 x data nodes AWS c3.2xlarge 8 cores 30gb ``` **Plugins:** ``` AWS Marvel ``` **Document Count** ``` account-index-v1.0 4.5 M entry-index-v1.0 13.1 M ``` **@160 query per second using jmeter to execute the following query:** ``` CPU LOAD(1m) MEM %FreeD IOPS Client Nodes hidden:9300 0.0 0.0 7.3 n/a n/a hidden:9300 0.0 0.0 4.3 n/a n/a hidden:9300 0.0 0.1 8.3 n/a n/a Data Nodes hidden:9300 99.0 10.2 11.7 69.7 GB 1.2 hidden:9300 71.0 3.0 15.0 69.6 GB 3.9 hidden:9300 16.7 0.3 12.7 69.8 GB 0.1 Master Nodes hidden:9300 0.3 0.0 3.0 73.0 GB 0.2 hidden:9300 0.3 0.0 7.0 73.0 GB 0.1 hidden:9300 0.3 0.0 5.0 73.0 GB 0.1 ``` **queries** { "filtered": { "filter": { "term": { "event\_id": "13369" }}, "query": { "match": { "race\_id\_indexed": "330994", "is\_test":"F", "status":"CONF"}} }, "\_cache": true } Elastic Config note: the only part that isn't included is the setting to turn it to a node. However, that is in our config just forgot to copy that part. ``` marvel.agent.enabled: true cluster.name: Vision bootstrap.mlockall: true http.enabled: true index.number_of_shards: 3 index.number_of_replicas: 1 <%if node.has_key?("ec2") %> plugin.mandatory: "cloud-aws" discovery.type: "ec2" discovery.ec2.groups: "<%= node["ec2"]["security_groups"][0] %>" discovery.ec2.ping_timeout: "120s" discovery.zen.ping.multicast.enabled: false <% else %> discovery.zen.ping.multicast.enabled: true <% end %> ``` as per the comment I changed to using filters. The cpu usage went down but its still 99-70% at 160rps. ran our of room here is the rest of the information: here is the query { "filtered": { "filter": { "term": { "event\_id": "13369" }}, "query": { "match": { "race\_id\_indexed": "330994", "is\_test":"F", "status":"CONF"}} }, "\_cache": true } the optimized query really helped the performance but im still getting high cpu usage according to marvel. hot\_threads: ``` ::: [Gazelle][rJ0RbsKIQSeP5ozDb_U9oQ][esn2-a828d755-dev][inet[ ``` /10.11.180.189:9300]]{master=false} ``` 23.3% (116.4ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Gazelle][search][T#6]' 9/10 snapshots sharing following 10 elements sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) java.util.concurrent.LinkedTransferQueue.awaitMatch( LinkedTransferQueue.java:735) java.util.concurrent.LinkedTransferQueue.xfer(LinkedTransferQueue .java:644) java.util.concurrent.LinkedTransferQueue.take(LinkedTransferQueue .java:1137) org.elasticsearch.common.util.concurrent.SizeBlockingQueue.take( SizeBlockingQueue.java:162) java.util.concurrent.ThreadPoolExecutor.getTask( ThreadPoolExecutor.java:1068) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1130) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) unique snapshot java.util.Hashtable.get(Hashtable.java:433) org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:273) org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:247) org.apache.log4j.LogManager.getLogger(LogManager.java:228) org.apache.log4j.Logger.getLogger(Logger.java:104) org.elasticsearch.common.logging.log4j.Log4jESLoggerFactory. newInstance(Log4jESLoggerFactory.java:39) org.elasticsearch.common.logging.ESLoggerFactory.getLogger( ESLoggerFactory.java:62) org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java: 147) org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java: 110) org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java: 84) org.elasticsearch.common.component.AbstractComponent.( AbstractComponent.java:38) org.elasticsearch.common.util.BigArrays.(BigArrays.java:377 ) org.elasticsearch.common.util.BigArrays.withCircuitBreaking( BigArrays.java:420) org.elasticsearch.search.internal.DefaultSearchContext.( DefaultSearchContext.java:201) org.elasticsearch.search.SearchService.createContext( SearchService.java:536) org.elasticsearch.search.SearchService.createAndPutContext( SearchService.java:515) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:277) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` 19.6% (98ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Gazelle][search][T#9]' 3/10 snapshots sharing following 19 elements org.apache.lucene.search.ConstantScoreQuery$ConstantScorer. nextDoc(ConstantScoreQuery.java:257) org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:192) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) 7/10 snapshots sharing following 2 elements java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` 19.5% (97.4ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Gazelle][search][T#7]' 3/10 snapshots sharing following 19 elements org.apache.lucene.search.ConstantScoreQuery$ConstantScorer. nextDoc(ConstantScoreQuery.java:257) org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:192) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) 7/10 snapshots sharing following 10 elements sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) java.util.concurrent.LinkedTransferQueue.awaitMatch( LinkedTransferQueue.java:735) java.util.concurrent.LinkedTransferQueue.xfer(LinkedTransferQueue .java:644) java.util.concurrent.LinkedTransferQueue.take(LinkedTransferQueue .java:1137) org.elasticsearch.common.util.concurrent.SizeBlockingQueue.take( SizeBlockingQueue.java:162) java.util.concurrent.ThreadPoolExecutor.getTask( ThreadPoolExecutor.java:1068) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1130) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` ::: [Shiva][otF4wQ2MRy6IuIXNkJr8hw][esn3-c2c5423e-dev][inet[ ``` /10.111.181.149:9300]]{master=false} ``` 37.9% (189.3ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Shiva][search][T#9]' 6/10 snapshots sharing following 18 elements org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:193) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) 4/10 snapshots sharing following 19 elements org.apache.lucene.search.ConstantScoreQuery$ConstantScorer. nextDoc(ConstantScoreQuery.java:257) org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:192) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` 32.2% (161ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Shiva][search][T#4]' 5/10 snapshots sharing following 18 elements org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:193) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) 5/10 snapshots sharing following 19 elements org.apache.lucene.search.ConstantScoreQuery$ConstantScorer. nextDoc(ConstantScoreQuery.java:257) org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:192) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` 31.5% (157.6ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Shiva][search][T#11]' 5/10 snapshots sharing following 18 elements org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:193) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) 5/10 snapshots sharing following 19 elements org.apache.lucene.search.ConstantScoreQuery$ConstantScorer. nextDoc(ConstantScoreQuery.java:257) org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight .java:192) org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight. java:163) org.apache.lucene.search.BulkScorer.score(BulkScorer.java:35) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 621) org.elasticsearch.search.internal.ContextIndexSearcher.search( ContextIndexSearcher.java:191) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 491) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 448) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 281) org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java: 269) org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java :157) org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase( SearchService.java:272) org.elasticsearch.search.SearchService.executeQueryPhase( SearchService.java:283) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:776) org.elasticsearch.search.action. SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived( SearchServiceTransportAction.java:767) org.elasticsearch.transport.netty. MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1145) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` ::: [Rachel Summers][FBCqMCL8QiuyaBDDT9tvqg][esn1-38caed17-dev][inet[ ``` /10.145.222.206:9300]]{master=false} ``` 15.3% (76.3ms out of 500ms) cpu usage by thread ``` 'elasticsearch[Rachel Summers][search][T#1]' 10/10 snapshots sharing following 2 elements java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` 12.9% (64.6ms out of 500ms) cpu usage by thread 'elasticsearch[Rachel ``` Summers][search][T#9]' 10/10 snapshots sharing following 10 elements sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) java.util.concurrent.LinkedTransferQueue.awaitMatch( LinkedTransferQueue.java:735) java.util.concurrent.LinkedTransferQueue.xfer(LinkedTransferQueue .java:644) java.util.concurrent.LinkedTransferQueue.take(LinkedTransferQueue .java:1137) org.elasticsearch.common.util.concurrent.SizeBlockingQueue.take( SizeBlockingQueue.java:162) java.util.concurrent.ThreadPoolExecutor.getTask( ThreadPoolExecutor.java:1068) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1130) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) ``` 11.9% (59.6ms out of 500ms) cpu usage by thread 'elasticsearch[Rachel ``` Summers][search][T#10]' 10/10 snapshots sharing following 10 elements sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:186) java.util.concurrent.LinkedTransferQueue.awaitMatch( LinkedTransferQueue.java:735) java.util.concurrent.LinkedTransferQueue.xfer(LinkedTransferQueue .java:644) java.util.concurrent.LinkedTransferQueue.take(LinkedTransferQueue .java:1137) org.elasticsearch.common.util.concurrent.SizeBlockingQueue.take( SizeBlockingQueue.java:162) java.util.concurrent.ThreadPoolExecutor.getTask( ThreadPoolExecutor.java:1068) java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1130) java.util.concurrent.ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:615) java.lang.Thread.run(Thread.java:745) -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. 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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system) #### Post date: [July 6, 2017, 12:22am UTC](https://discuss.elastic.co/t/elasticsearch-high-cpu-usage-160-queries-per-second-doesnt-make-sense/23067/2 "2017-07-06T00:22:02Z")