com.alibaba.nacos.client.Worker.longPolling.fixed-mse

 

com.alibaba.nacos.client.Worker.longPolling 这个线程池是1.x的nacos-client的长轮训线程，数量应该为 NacosConfigService数量 * CPU 数量

 

可能原因
系统环境问题。程序读取到的CPU数量错误，导致线程池核心大小和最大大小过大。

应用中创建过多Nacos-Client实例， 例如NacosNamingService或NacosConfigService。

"com.alibaba.nacos.client.Worker.longPolling.fixed-mse-b9d692e0-p.nacos-ans.mse.aliyuncs.com_8848-cc1af948-4f18-46a9-8f9a-bd0239a0a43d@10585" daemon prio=5 tid=0x78 nid=NA runnable
  java.lang.Thread.State: RUNNABLE
      at java.net.SocketInputStream.socketRead0(SocketInputStream.java:-1)
      at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
      at java.net.SocketInputStream.read(SocketInputStream.java:171)
      at java.net.SocketInputStream.read(SocketInputStream.java:141)
      at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
      at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
      at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
      - locked <0x2b93> (a java.io.BufferedInputStream)
      at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:779)
      at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:714)
      at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1607)
      - locked <0x2b94> (a sun.net.www.protocol.http.HttpURLConnection)
      at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1512)
      at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
      at com.alibaba.nacos.client.config.impl.HttpSimpleClient.httpPost(HttpSimpleClient.java:125)
      at com.alibaba.nacos.client.config.http.ServerHttpAgent.httpPost(ServerHttpAgent.java:135)
      at com.alibaba.nacos.client.config.http.MetricsHttpAgent.httpPost(MetricsHttpAgent.java:64)
      at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateConfigStr(ClientWorker.java:377)
      at com.alibaba.nacos.client.config.impl.ClientWorker.checkUpdateDataIds(ClientWorker.java:352)
      at com.alibaba.nacos.client.config.impl.ClientWorker$LongPollingRunnable.run(ClientWorker.java:512)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
      at java.util.concurrent.FutureTask.run(FutureTask.java:-1)
      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:750)

 

https://help.aliyun.com/zh/mse/support/what-do-i-do-if-the-number-of-nacos-threads-is-excessively-large