[jira] [Created] (AMBARI-15330) Bubble up errors during RU/EU

["Alejandro Fernandez (JIRA)" <ji...@apache.org>]

Alejandro Fernandez created AMBARI-15330:
--------------------------------------------

             Summary: Bubble up errors during RU/EU
                 Key: AMBARI-15330
                 URL: https://issues.apache.org/jira/browse/AMBARI-15330
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.4.0
            Reporter: Alejandro Fernandez
            Assignee: Alejandro Fernandez
             Fix For: 2.4.0


During RU/EU, need a way to bubble up an error of the current item that failed. This is useful to quickly get a human-readable error that others UIs can quickly retrieve.
It can print a human-readable error, plus stdout and stderr.

This would become part of the upgrade endpoint. e.g,
api/v1/clusters/$name/upgrade_summary/$request_id
{code}
{
attempt_cnt: 1,
cluster_name: "c1",
request_id: 1,
fail_reason: "Failed calling RESTART ZOOKEEPER/ZOOKEEPER_SERVER on host c6401.ambari.apache.org",

// Notice that the rest are inherited from the failed task if it exists.
command: "CUSTOM_COMMAND",
command_detail: "RESTART ZOOKEEPER/ZOOKEEPER_SERVER",
custom_command_name: "RESTART",
end_time: -1,
error_log: "/var/lib/ambari-agent/data/errors-1234.txt",
exit_code: 1,
host_name: "c6401.ambari.apache.org",
id: 1234,
output_log: "/var/lib/ambari-agent/data/output-1234.txt",
role: "ZOOKEEPER_SERVER",
stage_id: 1,
start_time: 123456789,
status: "HOLDING_FAILED",
stdout: "",
stderr: ""
}
{code}



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