java.net.SocketException: Connection reset

[Jason <hi...@gmail.com>]

I've got SocketException(Connection reset) frequently.
This is occurred during distibuted search and logged like below in request
server.
At First, I thought that the reason of exception is long gc pause time of
jvm.
So I changed connectionTimeout of the connector in tomcat server.xml to
60000ms.
However, In gc pause time under 10000ms that exception still occurs.
Does this exception not caused by gc pause?
Requested server is not closed and just sometimes occures stop the world by
gc.
What's the reason and how can I solve this?


2012-07-30 09:21:36,316 [http-8080-exec-1649] ERROR
org.apache.solr.core.SolrCore - org.apache.solr.common.SolrException:
org.apache.solr.client.solrj.SolrServerException: IOException occured when
talking to server at: http://xxx.xxx.xxx.xxx:8080/solr_jt/jtp01
        at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:298)
        at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
        at org.apache.solr.core.SolrCore.execute(SolrCore.java:1555)
        at
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:445)
        at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:266)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)
        at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:732)
        at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2262)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.solr.client.solrj.SolrServerException: IOException
occured when talking to server at: http://xxx.xxx.xxx.xxx:8080/solr_jt/jtp01
        at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:437)
        at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:209)
        at
org.apache.solr.handler.component.HttpShardHandler$1.call(HttpShardHandler.java:165)
        at
org.apache.solr.handler.component.HttpShardHandler$1.call(HttpShardHandler.java:132)
        at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        ... 3 more
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:168)
        at
org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:149)
        at
org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:111)
        at
org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:264)
        at
org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:98)
        at
org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:252)
        at
org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:282)
        at
org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:247)
        at
org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:216)
        at
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:298)
        at
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
        at
org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:647)
        at
org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
        at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
        at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
        at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
        at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:379)
        ... 11 more



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