问题：我正在运行一个有四个索引的弹性搜索服务器群集，一个拥有450万个文档，另一个拥有1300万个文档。另一个指数是奇迹和kibana，而且非常小。
每当我使用jmeter（“测试框架”）每秒进行大约150次查询时，CPU将最大化。我打开的越多，CPU最大化就越多。
从我在网上看到的关于性能调优的所有内容来看，它通常都有内存问题，但是我们的盒子在内存之前就已经用完了cpu方式并且在测试时产生了6秒的响应时间。
设置：
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
插件：
AWS
Marvel
文件计数
account-index-v1.0 4.5 M
entry-index-v1.0 13.1 M
@ 160查询每秒使用jmeter执行以下查询：
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
查询
{
"match"{"event_id":"10000"},
"match"{"race_id_indexed":"10000"},
"match"{"is_test":"F"},
"match"{"status":"CONF"},
"must_not":[{"match"{"type":"TEAM"}}],
"query":{"match_all":{}}
}
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 %>
根据评论我改为使用过滤器。 CPU使用率下降但仍为60-70％，为160rps。
这是查询
{
"search" : {
"filter" : {
"terms" : { "event_id" : ["10000"], race_id_indexed:["100000"], is_test:["F"], status:["CONF"]}
}
}
}
优化的查询确实有助于提高性能，但我仍然可以根据奇迹获得高CPU使用率。
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$Worker.run(ThreadPoolExecutor.java:615)
java.lang.Thread.run(Thread.java:745)
unique snapshot
java.util.Hashtable.get(Hashtable.java:433)
org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:273)
org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:247)
org.apache.log4j.LogManager.getLogger(LogManager.java:228)
org.apache.log4j.Logger.getLogger(Logger.java:104)
org.elasticsearch.common.logging.log4j.Log4jESLoggerFactory.newInstance(Log4jESLoggerFactory.java:39)
org.elasticsearch.common.logging.ESLoggerFactory.getLogger(ESLoggerFactory.java:62)
org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java:147)
org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java:110)
org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java:84)
org.elasticsearch.common.component.AbstractComponent.<init>(AbstractComponent.java:38)
org.elasticsearch.common.util.BigArrays.<init>(BigArrays.java:377)
org.elasticsearch.common.util.BigArrays.withCircuitBreaking(BigArrays.java:420)
org.elasticsearch.search.internal.DefaultSearchContext.<init>(DefaultSearchContext.java:201)
org.elasticsearch.search.SearchService.createContext(SearchService.java:536)
org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:515)
org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:277)
org.elasticsearch.search.action.SearchServiceTransportAction$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)