issue_comments: 263470325

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html_url	issue_url	id	node_id	user	created_at	updated_at	author_association	body	reactions	performed_via_github_app	issue
https://github.com/pydata/xarray/issues/798#issuecomment-263470325	https://api.github.com/repos/pydata/xarray/issues/798	263470325	MDEyOklzc3VlQ29tbWVudDI2MzQ3MDMyNQ==	306380	2016-11-29T04:02:05Z	2016-11-29T04:02:05Z	MEMBER	A lock on the LRU cache makes sense to me. We need separate, per file locks, to ensure that we don't evict files in the process of reading or writing data from them (which would cause segfaults). As a stop-gap measure, we could simply refuse to evict files until we can acquire a lock, but more broadly this suggests that strict LRU is not quite right. Instead, we want to evict the least-recently-used unlocked item If it were me I would just block on the evicted file until it becomes available (the stop-gap measure) until it became a performance problem.	{ "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 }		142498006