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(Updated Сер. 21, 2017, 8:48 після полудня) Review request for Ambari, Myroslav Papirkovskyy, Sumit Mohanty, and Sid Wagle. Bugs: AMBARI-21173 https://issues.apache.org/jira/browse/AMBARI-21173 Repository: ambari Description ------- Change Yarn-site.xml to some custom configs and restart Yarn Restore it back to the origin config; Restart fails {Code} Traceback (most recent call last): File "/var/lib/ambari-agent/cache/common-services/YARN/3.0.0.3.0/package/scripts/nodemanager.py", line 106, in <module> Nodemanager().execute() File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 330, in execute method(env) File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 835, in restart self.stop(env, upgrade_type=upgrade_type) File "/var/lib/ambari-agent/cache/common-services/YARN/3.0.0.3.0/package/scripts/nodemanager.py", line 45, in stop import params File "/var/lib/ambari-agent/cache/common-services/YARN/3.0.0.3.0/package/scripts/params.py", line 29, in <module> from params_linux import * File "/var/lib/ambari-agent/cache/common-services/YARN/3.0.0.3.0/package/scripts/params_linux.py", line 39, in <module> import status_params File "/var/lib/ambari-agent/cache/common-services/YARN/3.0.0.3.0/package/scripts/status_params.py", line 46, in <module> yarn_pid_dir = format("{yarn_pid_dir_prefix}/{yarn_user}") File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/format.py", line 95, in format return ConfigurationFormatter().format(format_string, args, **result) File "/usr/lib/python2.6/site-packages/resource_management/libraries/functions/format.py", line 59, in format result_protected = self.vformat(format_string, args, all_params) File "/usr/lib64/python2.7/string.py", line 549, in vformat result = self._vformat(format_string, args, kwargs, used_args, 2) File "/usr/lib64/python2.7/string.py", line 582, in _vformat result.append(self.format_field(obj, format_spec)) File "/usr/lib64/python2.7/string.py", line 599, in format_field return format(value, format_spec) File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/config_dictionary.py", line 73, in __getattr__ raise Fail("Configuration parameter '" + self.name + "' was not found in configurations dictionary!") resource_management.core.exceptions.Fail: Configuration parameter 'yarn-env' was not found in configurations dictionary! {Code} Diffs (updated) ----- ambari-server/src/main/java/org/apache/ambari/server/state/cluster/ClusterImpl.java 84b411c Diff: https://reviews.apache.org/r/61582/diff/4/ Changes: https://reviews.apache.org/r/61582/diff/3-4/ Testing ------- mvn clean test Thanks, Vitalyi Brodetskyi