python - HortonWorks Ambari 1.7.0 选择了错误的 HDP 堆栈

Question

我正在尝试使用 Ambari 1.7.0 设置一个 6 节点 HDP 2.2 集群。在 hack 之后(通过将 'export PYTHON=/usr/bin/python2.6' 添加到 ambari-agent/ambari-enh)让 ambari-agent 守护程序在代理节点上运行，我能够注册目标主机。

但是，我在“部署”步骤中遇到了一个可怕的问题。似乎虽然我选择了 HDP 2.2 堆栈，但仍然选择了 HDP 2.0.6。

Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/services/HDFS/package/scripts/datanode.py", line 21, in <module>
from hdfs_datanode import datanode
  File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/services/HDFS/package/scripts/hdfs_datanode.py", line 21, in <module>
from resource_management.libraries.functions.dfs_datanode_helper import handle_dfs_data_dir
ImportError: No module named dfs_datanode_helper

ambari-agent.log 包含以下内容:

INFO 2015-02-06 00:11:47,707 PythonExecutor.py:118 - Result: 
 {'structuredOut': {}, 
  'stdout': '2015-02-06 00:11:47,687 - Error while executing command
   \'status\':\nTraceback (most recent call last):\n  
 File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", 
 line 123, in execute\n  File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/services/GANGLIA/package/scripts/ganglia_monitor.py", 
 line 63, in status\n    
 raise ComponentIsNotRunning()\nComponentIsNotRunning', 
      'stderr': '2015-02-06 00:11:47,687 - Error while executing command
     \'status\':\nTraceback (most recent call last):\n  
          File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", 
          line 123, in execute\n  File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/services/GANGLIA/package/scripts/ganglia_monitor.py", line 63, in status\n    
          raise ComponentIsNotRunning()\nComponentIsNotRunning', 'exitcode': 1}

问:为什么我选择了 HDP 2.2 还是安装了 HDP 2.0.6？

我的环境信息:
CentOS 6.6、HortonWorks Ambari 1.7.0、HDP-2.2、HDP-UTILS-1.1

repo :
HDP-2.2 HDP-UTILS-1.1.0.20 更新-ambari-1.7.0 ambari-1.x

Answer 1

这是预期的行为。 Ambari Stacks 可以继承以前的版本。因此，在您的情况下，对于 Stack 2.2，HDFS 继承自 Stack 2.1 版，后者也继承自 2.0.6 版。

这是在这里定义的:https://github.com/apache/ambari/blob/release-1.7.0/ambari-server/src/main/resources/stacks/HDP/2.2/metainfo.xml

现在，回到真正的问题，Ganglia 根本没有运行。您看到的错误是在 Ganglia 服务的状态检查中引发的。我会从那里开始。