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Subject [GitHub] [ambari] aonishuk opened a new pull request #3273: AMBARI-25604. During blueprint deploy tasks sometimes fail due to KeyError
Date Thu, 10 Dec 2020 18:52:01 GMT

aonishuk opened a new pull request #3273:

   ## What changes were proposed in this pull request?
   During  blueprint deploy we don't rely on topology cache since
   So topology is send with command. BUT the problem occurs when we still try to generate
it on agent and fail.
   We need to ignore not fail on KeyError there
   ```ERROR 2020-12-10 06:30:09,350 - Caught an exception
while executing custom service command: <type 'exceptions.KeyError'>: 10; 10
   Traceback (most recent call last):
     File "/usr/lib/ambari-agent/lib/ambari_agent/", line 324,
in runCommand
       command = self.generate_command(command_header)
     File "/usr/lib/ambari-agent/lib/ambari_agent/", line 507,
in generate_command
       command_dict = self.configuration_builder.get_configuration(cluster_id, service_name,
component_name, required_config_timestamp)
     File "/usr/lib/ambari-agent/lib/ambari_agent/", line 43, in get_configuration
       'clusterHostInfo': self.topology_cache.get_cluster_host_info(cluster_id),
     File "/usr/lib/ambari-agent/lib/ambari_agent/", line 230, in newFunction
       return f(*args, **kw)
     File "/usr/lib/ambari-agent/lib/ambari_agent/", line 112, in get_cluster_host_info
       hostnames = [self.hosts_to_id[cluster_id][host_id].hostName for host_id in component_dict.hostIds]
   KeyError: 10```
   ## How was this patch tested?
   Deploy a cluster

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