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Yarn rigistry DNS not started

Yarn rigistry DNS not started

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<Traceback (most recent call last): File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/YARN/package/scripts/yarn_registry_dns.py", line 93, in <module> RegistryDNS().execute() File "/usr/lib/ambari-agent/lib/resource_management/libraries/script/script.py", line 352, in execute method(env) File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/YARN/package/scripts/yarn_registry_dns.py", line 53, in start service('registrydns',action='start') File "/usr/lib/ambari-agent/lib/ambari_commons/os_family_impl.py", line 89, in thunk return fn(*args, **kwargs) File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/YARN/package/scripts/service.py", line 110, in service Execute(daemon_cmd, not_if=check_process, environment=hadoop_env_exports) File "/usr/lib/ambari-agent/lib/resource_management/core/base.py", line 166, in __init__ self.env.run() File "/usr/lib/ambari-agent/lib/resource_management/core/environment.py", line 160, in run self.run_action(resource, action) File "/usr/lib/ambari-agent/lib/resource_management/core/environment.py", line 124, in run_action provider_action() File "/usr/lib/ambari-agent/lib/resource_management/core/providers/system.py", line 263, in action_run returns=self.resource.returns) File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 72, in inner result = function(command, **kwargs) File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 102, in checked_call tries=tries, try_sleep=try_sleep, timeout_kill_strategy=timeout_kill_strategy, returns=returns) File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 150, in _call_wrapper result = _call(command, **kwargs_copy) File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 314, in _call raise ExecutionFailed(err_msg, code, out, err) resource_management.core.exceptions.ExecutionFailed: Execution of 'ambari-sudo.sh -H -E /usr/hdp/3.1.0.0-78/hadoop-yarn/bin/yarn --config /usr/hdp/3.1.0.0-78/hadoop/conf --daemon start registrydns' returned 1. ERROR: Cannot set priority of registrydns process 11305>