diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/server/dns/RegistryDNS.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/server/dns/RegistryDNS.java index c31ce891d6..c322023682 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/server/dns/RegistryDNS.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/server/dns/RegistryDNS.java @@ -76,6 +76,7 @@ import java.net.SocketAddress; import java.net.SocketException; import java.net.UnknownHostException; +import java.nio.BufferUnderflowException; import java.nio.ByteBuffer; import java.nio.channels.DatagramChannel; import java.nio.channels.ServerSocketChannel; @@ -802,6 +803,8 @@ public void nioTCPClient(SocketChannel ch) throws IOException { ch.socket().getPort(), ch.socket().getLocalAddress().getHostName(), ch.socket().getLocalPort(), e); + } catch (BufferUnderflowException e) { + // Ignore system monitor ping packets } finally { IOUtils.closeStream(ch); }