[ https://issues.apache.org/jira/browse/ARROW-13644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Weston Pace closed ARROW-13644. ------------------------------- Resolution: Won't Do An LRU queue might be more efficient but mixing the LRU cache with the rest of the dataset writer code was becoming too tedious and I ended up backing away from this approach. Instead, in the rare event we exceed the max # of open files, I simply do a linear search to find the file with the most rows and close that one (in hopes of minimizing the # of files created). > [C++] Create LruCache that works with futures > --------------------------------------------- > > Key: ARROW-13644 > URL: https://issues.apache.org/jira/browse/ARROW-13644 > Project: Apache Arrow > Issue Type: Sub-task > Components: C++ > Reporter: Weston Pace > Assignee: Weston Pace > Priority: Major > > The dataset writer needs an LRU cache to keep track of open files so that it > can respect a "max open files" property (see ARROW-12321). A synchronous > LruCache implementation already exists but on eviction from the cache we need > to wait until all pending writes have completed before we evict the item and > open a new file. This ticket is to create an AsyncLruCache which will allow > the creation of items and the eviction of items to be asynchronous. -- This message was sent by Atlassian Jira (v8.3.4#803005)