我正在尝试使用Ambari 1.7.0设置6节点HDP 2.2群集 . 在hack之后（通过向ambari-agent / ambari-enh添加'export PYTHON = / usr / bin / python2.6'）来获取在代理节点上运行的ambari-agent守护程序，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 . 虽然我选择了HDP 2.2堆栈，但似乎仍然选择了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：即使我选择了HDP 2.2，为什么还要安装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
回购：HDP-2.2 HDP-UTILS-1.1.0.20更新-ambari-1.7.0 ambari-1.x
1 回答
这是预期的行为 . Ambari Stacks可以继承以前的版本 . 所以在你的情况下，对于Stack 2.2，HDFS继承自Stack版本2.1，它也继承自2.0.6版本 .
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根本就没有运行 . 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 .