PROSAGA码农传奇-springcloud-使用zuul会发生大量CLOSE

<div class =“post-text”itemprop =“text”>
  <P>
     <code>
      CLOSE_WAIT
    </code>
     这里描述：
    <a href="https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.halu101/constatus.htm" rel="nofollow noreferrer">
      TCP连接状态
    </A>
  </p>
  <BLOCKQUOTE>
    <P>
      此端点已收到来自远程端点的关闭请求，此TCP正在等待来自本地应用程序的连接终止请求。
    </p>
  </BLOCKQUOTE>
  <P>
    功能区使用连接池向上游发送请求。每次都会释放连接而不是关闭它以避免建立新连接的开销。
  </p>
  <P>
    通过配置，池中的连接具有活动时间
     <code>
      ribbon.PoolKeepAliveTime
    </code>
     默认值为15 * 60秒。
  </p>
   <pre>
    <code>
      public class DefaultClientConfigImpl implements IClientConfig {
    public static final long DEFAULT_POOL_KEEP_ALIVE_TIME = 15 * 60L;
    public static final TimeUnit DEFAULT_POOL_KEEP_ALIVE_TIME_UNITS = TimeUnit.SECONDS;
}

public class OkHttpRibbonConfiguration {
@Value("${ribbon.client.name}")
private String name = "client";

@Configuration
protected static class OkHttpClientConfiguration {
    private OkHttpClient httpClient;

@Bean
    @ConditionalOnMissingBean(ConnectionPool.class)
    public ConnectionPool httpClientConnectionPool(IClientConfig config, OkHttpClientConnectionPoolFactory connectionPoolFactory) {
        Integer maxTotalConnections = config.getPropertyAsInteger(
                CommonClientConfigKey.MaxTotalConnections,
                DefaultClientConfigImpl.DEFAULT_MAX_TOTAL_CONNECTIONS);
        Object timeToLiveObj = config
                .getProperty(CommonClientConfigKey.PoolKeepAliveTime);
        Long timeToLive = DefaultClientConfigImpl.DEFAULT_POOL_KEEP_ALIVE_TIME;
        Object ttlUnitObj = config
                .getProperty(CommonClientConfigKey.PoolKeepAliveTimeUnits);
        TimeUnit ttlUnit = DefaultClientConfigImpl.DEFAULT_POOL_KEEP_ALIVE_TIME_UNITS;
        if (timeToLiveObj instanceof Long) {
            timeToLive = (Long) timeToLiveObj;
        }
        if (ttlUnitObj instanceof TimeUnit) {
            ttlUnit = (TimeUnit) ttlUnitObj;
        }
        return connectionPoolFactory.create(maxTotalConnections, timeToLive, ttlUnit);
    }

}

</code>
  </pre>
</DIV>

使用zuul会发生大量CLOSE_WAIT