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Posted to issues@arrow.apache.org by "Lu Qi (JIRA)" <ji...@apache.org> on 2017/11/10 16:16:00 UTC

[jira] [Created] (ARROW-1795) [Plasma C++] change evict policy

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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