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https://issues.apache.org/jira/browse/TAJO-1113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-1113:
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Description:
Currently, {{KILLED}} state in SubQuery does not handle any event. As I
mentioned in TAJO-1111, {{QueryUnit}} in even terminal states may receive
additional unexpected events from a running tasks because a running task
reporter sends a progress periodically; that is the report is not synchronized
with a task life cycle. As a result, When a killed {{QueryUnit}} receives
unexpected events, it can cause some event towards {{SubQuery}}. But,
{{SubQuery}} does not handle any addition events if SubQuery is already in
{{KILLED}}.
This patch adds some transitions to SubQuery in order to fix the above problem.
was:
Currently, {{KILLED}} state in SubQuery does not handle any event. As I
mentioned in TAJO-1111, QueryUnit in even terminal states may receive
additional unexpected events from a running tasks because a running task
reporter sends a progress periodically; that is the report is not synchronized
with a task life cycle. As a result, When a KILLED QueryUnit receives
unexpected events, it can cause some event towards SubQuery. But, SubQuery does
not handle any addition events if SubQuery is already in KILLED.
This patch adds some transitions to SubQuery in order to fix the above problem.
> SubQuery in KILLED state should handle some ignorable event.
> ------------------------------------------------------------
>
> Key: TAJO-1113
> URL: https://issues.apache.org/jira/browse/TAJO-1113
> Project: Tajo
> Issue Type: Bug
> Components: query master
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Minor
> Fix For: 0.9.0
>
>
> Currently, {{KILLED}} state in SubQuery does not handle any event. As I
> mentioned in TAJO-1111, {{QueryUnit}} in even terminal states may receive
> additional unexpected events from a running tasks because a running task
> reporter sends a progress periodically; that is the report is not
> synchronized with a task life cycle. As a result, When a killed {{QueryUnit}}
> receives unexpected events, it can cause some event towards {{SubQuery}}.
> But, {{SubQuery}} does not handle any addition events if SubQuery is already
> in {{KILLED}}.
> This patch adds some transitions to SubQuery in order to fix the above
> problem.
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