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From "Myroslav Papirkovskyy (JIRA)" <>
Subject [jira] [Created] (AMBARI-15202) Status commands temporary break host component state machine
Date Fri, 26 Feb 2016 11:45:18 GMT
Myroslav Papirkovskyy created AMBARI-15202:

             Summary: Status commands temporary break host component state machine
                 Key: AMBARI-15202
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 1.6.0
            Reporter: Myroslav Papirkovskyy
            Assignee: Myroslav Papirkovskyy
            Priority: Critical
             Fix For: 2.2.2

This occurs when status command response is received after start of next stage which modifies
sch state (quite often on starting services during install).

# status command is sent to agent (happens every 60 seconds)
# start commands are scheduled, generated event which move sch from INSTALLED to STARTING
# status command response received from agent. sch status directly set to INSTALLED bypassing
state machine
# All subsequent task reports from agent trigger InvalidTransitionException, as OP_INPROGRESS
event tries to do STARTING -> STARTING transition.
# However at task end we support INSTALLED -> STARTED transition for STARTED event. So
tasks finish normally.

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