提交拓扑后，命令状态将停止“创建作业WordCountTopology”

Question

我尝试使用Apache Mesos，Apache Aurora，ZooKeeper和HDFS构建一个Heron Cluster。但是，当我完成后提交WordCountTopology时，命令输出如下：停止“创建作业WordCountTopology”。

yitian@ubuntu:~/.heron/conf/aurora$ heron submit aurora/yitian/devel --config-path ~/.heron/conf ~/.heron/examples/heron-api-examples.jar com.twitter.heron.examples.api.WordCountTopology WordCountTopology
[2018-02-13 06:58:30 +0000] [INFO]: Using cluster definition in /home/yitian/.heron/conf/aurora
[2018-02-13 06:58:30 +0000] [INFO]: Launching topology: 'WordCountTopology'
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/yitian/.heron/lib/uploader/heron-dlog-uploader.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/yitian/.heron/lib/statemgr/heron-zookeeper-statemgr.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.JDK14LoggerFactory]
[2018-02-13 06:58:31 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Starting Curator client connecting to: heron01:2181  
[2018-02-13 06:58:31 -0800] [INFO] org.apache.curator.framework.imps.CuratorFrameworkImpl: Starting  
[2018-02-13 06:58:31 -0800] [INFO] org.apache.curator.framework.state.ConnectionStateManager: State change: CONNECTED  
[2018-02-13 06:58:31 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Directory tree initialized.  
[2018-02-13 06:58:31 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Checking existence of path: /home/yitian/heron/state/topologies/WordCountTopology  
[2018-02-13 06:58:34 -0800] [INFO] com.twitter.heron.uploader.hdfs.HdfsUploader: The destination directory does not exist. Creating it now at URI '/home/yitian/heron/topologies/aurora'  
[2018-02-13 06:58:37 -0800] [INFO] com.twitter.heron.uploader.hdfs.HdfsUploader: Uploading topology package at '/tmp/tmpvYzRv7/topology.tar.gz' to target HDFS at '/home/yitian/heron/topologies/aurora/WordCountTopology-yitian-tag-0--8268125700662472072.tar.gz'  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Created node for path: /home/yitian/heron/state/topologies/WordCountTopology  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Created node for path: /home/yitian/heron/state/packingplans/WordCountTopology  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Created node for path: /home/yitian/heron/state/executionstate/WordCountTopology  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.scheduler.aurora.AuroraLauncher: Launching topology in aurora  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.scheduler.utils.SchedulerUtils: Updating scheduled-resource in packing plan: WordCountTopology  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Deleted node for path: /home/yitian/heron/state/packingplans/WordCountTopology  
[2018-02-13 06:58:41 -0800] [INFO] com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager: Created node for path: /home/yitian/heron/state/packingplans/WordCountTopology  
INFO] Creating job WordCountTopology

Heron Tracker显示：

status  "success"
executiontime   0.00007081031799316406
message ""
version "0.17.1"
result  {}

Heron UI没有显示任何内容：

Aurora sheduler运行：

此外，它在群集中有两个主机。

1. 大师名为heron01，运行Mesos Master，zookeeper和Aurora Scheduler。
2. 奴隶名为heron02，运行Mesos奴隶，Aurora Observer和Executor。

我可以使用网站打开观察者（heron02:1338）和执行者（heron02:5051）。我不知道我犯了什么错误。群集配置如此复杂，我无法完全显示在这里。您可以在我的网站上看到群集配置。我道歉我的网站是中文，但我相信你可以理解网站上的配置文件内容。博客是here 非常感谢你的帮助。

Answer 1

此问题是由群集资源不足引起的。当Aurora Scheduler将实例调度到Heron群集中的工作节点时，如果工作节点没有足够的资源来分配实例，它将导致该实例挂起，等待群集中具有足够资源的工作节点出现。 因此，通过增加Heron群集中工作节点的RAM资源来解决此问题。