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Weston Pace commented on ARROW-13644: ------------------------------------- I do not append. I close the file and start a new file. That 15 file "worst case" would be 15 files each with 1 row. > [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)