No buffer space available (maximum connections reached?): connect-白红宇

No buffer space available (maximum connections reached?): connect

阅读量：1952 次

发布时间：2019-04-27

本文共 2601 字，大约阅读时间需要 8 分钟。

产生场景：

java调用es,由于代码不当，导致每次调用都会新建链接，当循环调用2万次时，报错了，发生了如下错误：

2018-07-27 11:44:28 814 | ERROR | pool-2722-thread-1 | CloseableHttpAsyncClientBase$1 | I/O reactor terminated abnormallyorg.apache.http.nio.reactor.IOReactorException: Failure opening selector    at org.apache.http.impl.nio.reactor.AbstractIOReactor.
   
    (AbstractIOReactor.java:103)    at org.apache.http.impl.nio.reactor.BaseIOReactor.
    
     (BaseIOReactor.java:85)    at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:318)    at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:192)    at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)    at java.lang.Thread.run(Thread.java:745)Caused by: java.io.IOException: Unable to establish loopback connection    at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:101)    at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:68)    at java.security.AccessController.doPrivileged(Native Method)    at sun.nio.ch.PipeImpl.
     
      (PipeImpl.java:170)    at sun.nio.ch.SelectorProviderImpl.openPipe(SelectorProviderImpl.java:50)    at java.nio.channels.Pipe.open(Pipe.java:155)    at sun.nio.ch.WindowsSelectorImpl.
      
       (WindowsSelectorImpl.java:127)    at sun.nio.ch.WindowsSelectorProvider.openSelector(WindowsSelectorProvider.java:44)    at java.nio.channels.Selector.open(Selector.java:227)    at org.apache.http.impl.nio.reactor.AbstractIOReactor.
       
        (AbstractIOReactor.java:101)    ... 5 moreCaused by: java.net.SocketException: No buffer space available (maximum connections reached?): connect    at sun.nio.ch.Net.connect0(Native Method)    at sun.nio.ch.Net.connect(Net.java:454)    at sun.nio.ch.Net.connect(Net.java:446)    at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)    at java.nio.channels.SocketChannel.open(SocketChannel.java:189)    at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(PipeImpl.java:130)    at sun.nio.ch.PipeImpl$Initializer.run(PipeImpl.java:83)    ... 14 more2018-07-27 11:44:58 780 | INFO  | http-apr-8089-exec-2 | EntFileEsController | ========>初始化失败java.io.IOException: listener timeout after waiting for [30000] ms    at org.elasticsearch.client.RestClient$SyncResponseListener.get(RestClient.java:660)    at org.elasticsearch.client.RestClient.performRequest(RestClient.java:219)    at org.elasticsearch.client.RestClient.performRequest(RestClient.java:191)