[ARROW-2000] Deduplicate file descriptors when plasma store replies to get request.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: C++ - Plasma
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17982
• Assignee: Robert Nishihara
• Reporter: Robert Nishihara
• Created: 16/Jan/18 00:19
• Updated: 11/Jan/23 07:18
• Resolved: 20/Jan/18 21:41

Description

Right now when the plasma store replies to a GetRequest from a client, it sends many file descriptors over the relevant socket (by calling send_fd). However, many of these file descriptors are redundant and so we should deduplicate them before sending.

 

Note that I often see the error "Failed to send file descriptor, retrying." printed when getting around 100 objects from the store. This may alleviate that.

Issue Links

• links to: GitHub Pull Request #1479