ES Rest High Level Client throws SocketTimeoutException after being idle for sometime

Elastic Stack Elasticsearch
1

RestHighLevelClient is used to connect to ES 6.4(hosted on AWS) in a spring-boot app. When the app goes idle for some time, and request arrives, then the RestHighLevelClient throws SocketTimeoutException:

[Request processing failed; nested exception is org.springframework.data.elasticsearch.ElasticsearchException: Error while bulk for request: org.elasticsearch.action.bulk.BulkRequest@21511b6c] w
java.net.SocketTimeoutException: 5,000 milliseconds timeout on connection http-outgoing-38 [ACTIVE]
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.timeout(HttpAsyncRequestExecutor.java:387) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.client.InternalIODispatch.onTimeout(InternalIODispatch.java:92) ~[httpasyncclient-4.1.4.jar!/:4.1.4]
at org.apache.http.impl.nio.client.InternalIODispatch.onTimeout(InternalIODispatch.java:39) ~[httpasyncclient-4.1.4.jar!/:4.1.4]
at org.apache.http.impl.nio.reactor.AbstractIODispatch.timeout(AbstractIODispatch.java:175) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.reactor.BaseIOReactor.sessionTimedOut(BaseIOReactor.java:263) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.reactor.AbstractIOReactor.timeoutCheck(AbstractIOReactor.java:492) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.reactor.BaseIOReactor.validate(BaseIOReactor.java:213) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:591) ~[httpcore-nio-4.4.11.jar!/:4.4.11]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

RestHighLevelClient is created using:

@Bean
  RestHighLevelClient client() {

        ClientConfiguration clientConfiguration = ClientConfiguration.builder()
                .connectedTo(elasticsearchHostAndPort)
                .build();

        return RestClients.create(clientConfiguration).rest();
   }

increasing timeout does not help.

Any hints/workarounds?

1 Like
2

May be you should give a try to the Sniffer?

4

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