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Posted to dev@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2015/05/27 12:09:17 UTC
[jira] [Created] (FLINK-2097) Add support for JobSessions
Stephan Ewen created FLINK-2097:
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Summary: Add support for JobSessions
Key: FLINK-2097
URL: https://issues.apache.org/jira/browse/FLINK-2097
Project: Flink
Issue Type: New Feature
Components: JobManager
Affects Versions: 0.9
Reporter: Stephan Ewen
Assignee: Maximilian Michels
Fix For: 0.9
Sessions make sure that the JobManager does not immediately discard a JobGraph after execution, but keeps it around for further operations to be attached to the graph. By keeping the JobGraph around, the cached streams (intermediate data) are also kept,
That is the way of realizing interactive sessions on top of a streaming dataflow abstraction.
ExecutionGraphs should be kept as long as
- no timeout occurred or
- the session has not been explicitly ended
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