[jira] [Issue Comment Deleted] (ARROW-2551) [Plasma] Improve notification related code

["Zhijun Fu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-2551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhijun Fu updated ARROW-2551:
-----------------------------
    Comment: was deleted

(was: PR is here:

https://github.com/apache/arrow/pull/2011)

> [Plasma] Improve notification related code
> ------------------------------------------
>
>                 Key: ARROW-2551
>                 URL: https://issues.apache.org/jira/browse/ARROW-2551
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Plasma (C++)
>            Reporter: Zhijun Fu
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> https://github.com/apache/arrow/pull/2011
> This change addresses two issues in plasma notification code:
>  # Currently plasma store uses recv_fd to receive the notification fd from client. As mentioned in comments from the code, this could cause plasma store to hang if client doesn't call send_fd. This particular change puts the notification fd in SubscriptionRequest to solve the problem.
>  # When a client subscribes to plasma store, the store pushes notifications of existing objects to ALL subscribers - while in this case it just needs to push to the new subscriber. This change adds a new interface to push to a particular client.



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