From common-issues-return-209177-archive-asf-public=cust-asf.ponee.io@hadoop.apache.org Sat Oct 24 00:17:05 2020 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mailroute1-lw-us.apache.org (mailroute1-lw-us.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with ESMTPS id 656C318064E for ; Sat, 24 Oct 2020 02:17:05 +0200 (CEST) Received: from mail.apache.org (localhost [127.0.0.1]) by mailroute1-lw-us.apache.org (ASF Mail Server at mailroute1-lw-us.apache.org) with SMTP id 5C369125635 for ; Sat, 24 Oct 2020 00:17:04 +0000 (UTC) Received: (qmail 51145 invoked by uid 500); 24 Oct 2020 00:17:01 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 50939 invoked by uid 99); 24 Oct 2020 00:17:01 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 24 Oct 2020 00:17:01 +0000 Received: from jira2-he-de.apache.org (static.54.33.119.168.clients.your-server.de [168.119.33.54]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id B9C1F408F6 for ; Sat, 24 Oct 2020 00:17:00 +0000 (UTC) Received: from jira2-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira2-he-de.apache.org (ASF Mail Server at jira2-he-de.apache.org) with ESMTP id 08F2FC80180 for ; Sat, 24 Oct 2020 00:17:00 +0000 (UTC) Date: Sat, 24 Oct 2020 00:17:00 +0000 (UTC) From: "Chao Sun (Jira)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HADOOP-17327) NPE when starting MiniYARNCluster from hadoop-client-minicluster MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Chao Sun created HADOOP-17327: --------------------------------- Summary: NPE when starting MiniYARNCluster from hadoop-client-minicluster Key: HADOOP-17327 URL: https://issues.apache.org/jira/browse/HADOOP-17327 Project: Hadoop Common Issue Type: Bug Affects Versions: 3.3.0 Reporter: Chao Sun When starting MiniYARNCluster one could get the following exception: {code} java.lang.NullPointerException: at org.apache.hadoop.yarn.server.nodemanager.webapp.WebServer.serviceStart(WebServer.java:72) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194) at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:122) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194) at org.apache.hadoop.yarn.server.MiniYARNCluster$NodeManagerWrapper.serviceStart(MiniYARNCluster.java:616) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194) at org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:122) at org.apache.hadoop.yarn.server.MiniYARNCluster.serviceStart(MiniYARNCluster.java:327) at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194) at org.apache.spark.deploy.yarn.BaseYarnClusterSuite.beforeAll(BaseYarnClusterSuite.scala:96) ... {code} Looking into the code, this is because we explicitly exclude those resource files under {{hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/resources/TERMINAL}}, and therefore this code in {{WebServer}} fails with NPE: {code} terminalParams.put("resourceBase", WebServer.class .getClassLoader().getResource("TERMINAL").toExternalForm()); {code} Those who use {{hadoop-minicluster}} may not be affected because they'll also need {{hadoop-yarn-server-nodemanager}} as an extra dependency, which includes the resource files. However {{hadoop-client-minicluster}} is supposed to be a single jar that includes both {{MiniYARNCluster}} as well as classes such as {{ResourceManager}} and {{NodeManager}}. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: common-issues-help@hadoop.apache.org