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Lu Qi updated ARROW-1795: -------------------------- Description: say, we have total free memory 8 G , we have input 5G data, then comes another 6G data, 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 . was: say, we have total memory 8 G , we have input 5G data, then comes another 6G data, 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 . > [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 > Labels: pull-request-available > > say, we have total free memory 8 G , we have input 5G data, then comes > another 6G data, > 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 . -- This message was sent by Atlassian JIRA (v6.4.14#64029)