[jira] [Created] (FLINK-2085) Add an option to the MemoryManager to allocate memory as needed, rather than preallocating it

[Stephan Ewen (JIRA)]

Stephan Ewen created FLINK-2085:
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             Summary: Add an option to the MemoryManager to allocate memory as 
needed, rather than preallocating it
                 Key: FLINK-2085
                 URL: https://issues.apache.org/jira/browse/FLINK-2085
             Project: Flink
          Issue Type: New Feature
          Components: Local Runtime
    Affects Versions: 0.9
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 0.9


Currently, the memory manager pre-allocates all memory.

We should introduce an option where it allocates bytes as needed and releases 
them when not needed any more. This will allow us to run streaming jobs and 
batch jobs concurrently, without blocking the memory for the streaming jobs.



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