Error while sniffing nodes

Elastic Stack Elasticsearch
1

Environment:

  • JDK 1.8.0_301
  • Grails 5.0.2
  • Spring Boot 2.5.7
  • Groovy 3.0.7
  • Elasticsearch 7.10.2 (also tried 7.12.1)

Situation:
Hi dear colleagues, could you please clarify the error while sniffing nodes.

Task:
Running successfully Gateway service which is using management health check internally designed by Spring

Actions:
Found here asked before but seems log wasn't provided fully.

Result
Facing the following error:

2021-12-08 06:29:17.245 ERROR 7688 --- [nt_sniffer[T#1]] org.elasticsearch.client.sniff.Sniffer   : error while sniffing nodes

java.net.ConnectException: Timeout connecting to [localhost/127.0.0.1:9200]
	at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:880) ~[elasticsearch-rest-client-7.12.1.jar:7.12.1]
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:283) ~[elasticsearch-rest-client-7.12.1.jar:7.12.1]
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:270) ~[elasticsearch-rest-client-7.12.1.jar:7.12.1]
	at org.elasticsearch.client.sniff.ElasticsearchNodesSniffer.sniff(ElasticsearchNodesSniffer.java:105) ~[elasticsearch-rest-client-sniffer-7.12.1.jar:7.12.1]
	at org.elasticsearch.client.sniff.Sniffer.sniff(Sniffer.java:208) ~[elasticsearch-rest-client-sniffer-7.12.1.jar:7.12.1]
	at org.elasticsearch.client.sniff.Sniffer$Task.run(Sniffer.java:138) ~[elasticsearch-rest-client-sniffer-7.12.1.jar:7.12.1]
	at org.elasticsearch.client.sniff.Sniffer$1.run(Sniffer.java:81) [elasticsearch-rest-client-sniffer-7.12.1.jar:7.12.1]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_301]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_301]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_301]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_301]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_301]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_301]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_301]
Caused by: java.net.ConnectException: Timeout connecting to [localhost/127.0.0.1:9200]
	at org.apache.http.nio.pool.RouteSpecificPool.timeout(RouteSpecificPool.java:169) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.nio.pool.AbstractNIOConnPool.requestTimeout(AbstractNIOConnPool.java:632) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.nio.pool.AbstractNIOConnPool$InternalSessionRequestCallback.timeout(AbstractNIOConnPool.java:898) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.impl.nio.reactor.SessionRequestImpl.timeout(SessionRequestImpl.java:198) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processTimeouts(DefaultConnectingIOReactor.java:213) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:158) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351) ~[httpcore-nio-4.4.14.jar:4.4.14]
	at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221) ~[httpasyncclient-4.1.4.jar:4.1.4]
	at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64) ~[httpasyncclient-4.1.4.jar:4.1.4]
	... 1 common frames omitted

Thanks in advance

2

The connection timeout and socket timeout are configured with value 60000.
As soon as using locally running Elasticsearch container after application startup getting another error

java.net.SocketTimeoutException: 30,000 milliseconds timeout on connection http-outgoing-0 [ACTIVE]
	at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:865)
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:283)
	at org.elasticsearch.client.RestClient.performRequest(RestClient.java:270)
	at org.elasticsearch.client.sniff.ElasticsearchNodesSniffer.sniff(ElasticsearchNodesSniffer.java:105)
	at org.elasticsearch.client.sniff.Sniffer.sniff(Sniffer.java:208)
	at org.elasticsearch.client.sniff.Sniffer$Task.run(Sniffer.java:138)
	at org.elasticsearch.client.sniff.Sniffer$1.run(Sniffer.java:81)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.SocketTimeoutException: 30,000 milliseconds timeout on connection http-outgoing-0 [ACTIVE]
	at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.timeout(HttpAsyncRequestExecutor.java:387)
	at org.apache.http.impl.nio.client.InternalIODispatch.onTimeout(InternalIODispatch.java:92)
	at org.apache.http.impl.nio.client.InternalIODispatch.onTimeout(InternalIODispatch.java:39)
	at org.apache.http.impl.nio.reactor.AbstractIODispatch.timeout(AbstractIODispatch.java:175)
	at org.apache.http.impl.nio.reactor.BaseIOReactor.sessionTimedOut(BaseIOReactor.java:261)
	at org.apache.http.impl.nio.reactor.AbstractIOReactor.timeoutCheck(AbstractIOReactor.java:502)
	at org.apache.http.impl.nio.reactor.BaseIOReactor.validate(BaseIOReactor.java:211)
	at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280)
	at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
	at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:591)
	... 1 common frames omitted

My Configurations are following

new RestHighLevelClient(
                RestClient.builder(
                        new HttpHost(host, port, "http")).setRequestConfigCallback(
                            new RestClientBuilder.RequestConfigCallback() {
                                @Override
                                RequestConfig.Builder customizeRequestConfig(
                                        RequestConfig.Builder requestConfigBuilder) {
                                            return requestConfigBuilder
                                                    .setConnectTimeout(60000)
                                                    .setSocketTimeout(60000)
                                        }
                                }))
3

Excluded Elasticsearch autoconfiguration which is included by default, solves the issue for now.
My answer approved to disable it.

spring:
  autoconfigure:
    exclude: org.springframework.boot.autoconfigure.elasticsearch.ElasticsearchRestClientAutoConfiguration

stackoverflow answer here

1 Like
4

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