Ambari為集群新增擴容過程中，有一個節點安裝多個client報錯

Traceback (most recent call last):File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/after-INSTALL/scripts/hook.py", line 37, in <module>AfterInstallHook().execute()File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 219, in executemethod(env)File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/after-INSTALL/scripts/hook.py", line 31, in hooksetup_hdp_symlinks()File "/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/after-INSTALL/scripts/shared_initialization.py", line 49, in setup_hdp_symlinkshdp_select.select_all(version)File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/hdp_select.py", line 122, in select_allExecute(command, only_if = only_if_command)File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", line 154, in __init__self.env.run()File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 160, in runself.run_action(resource, action)File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 124, in run_actionprovider_action()File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line 238, in action_runtries=self.resource.tries, try_sleep=self.resource.try_sleep)File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 70, in innerresult = function(command, **kwargs)File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 92, in checked_calltries=tries, try_sleep=try_sleep)File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 140, in _call_wrapperresult = _call(command, **kwargs_copy)File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 291, in _callraise Fail(err_msg) resource_management.core.exceptions.Fail: Execution of 'ambari-sudo.sh /usr/bin/hdp-select set all `ambari-python-wrap /usr/bin/hdp-select versions | grep ^2.3.4.7-4 | tail -1`' returned 1. Traceback (most recent call last):File "/usr/bin/hdp-select", line 374, in <module>setPackages(pkgs, args[2], options.rpm_mode)File "/usr/bin/hdp-select", line 273, in setPackagesos.symlink(target + "/" + dir, linkname) OSError: [Errno 17] File exists

經查發現

/usr/hdp 下有兩個目錄 2.3.4.7 和 current，其中current下都是2.3.4.7下對應Jar包或文件的軟連接，而我在安裝clients過程中遇到缺少client報錯直接將文件拷貝到了 current下，導致從2.3.4.7目錄建立軟連接是current目錄下已經存在，解決方法，刪除相應的目錄，重建軟連接。
期間還多次報錯permission denied 無法創建Log文件，pid文件，手動創建并修改權限后問題解決。

總結

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