Lu Qi created ARROW-1795:
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Summary: [Plasma C++] change evict policy
Key: ARROW-1795
URL: https://issues.apache.org/jira/browse/ARROW-1795
Project: Apache Arrow
Issue Type: Improvement
Components: Plasma (C++)
Reporter: Lu Qi
Assignee: Lu Qi
Priority: Minor
say, we have total memory 8 G , we have input 5G , then comes 6G,
if we choose to evict space 6G , it will throw exception saying that
no object can be free. This is because we didn't count the 3G remaining
space .If we count this remaining 3G , we need to ask only 3G,thus
we can evict the 5G and we are still alive .
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