If User D then browses to the folder, he would use it with Icon Previews enabled, based on the. DS_Store file for the folder with Icon Previews enabled. If User E copies a local folder to the server, it will contain a. For example: Let's say that User D has Icon Previews disabled, but User E has them enabled. DS_Store file, which is a hidden file the Finder can store in a folder to set per-folder preferences. The complication relates to the Finder's. Note that while each Mac user can change their own settings by clicking "Use as Default", actions of another user could override it for a particular folder. For a detailed explanation and steps, see That's much more useful than icon previews in most cases, especially for list views. Either way, the user can still preview a specific document by pressing the space bar to open a Quick Look preview. It will still show icons based on the file type - rather than a small preview of the document's first page. The most direct way to minimize the problem is to set the Finder to disable Icon Previews by default. These can also be helpful for improving performance on any version of macOS, independent of the bug. This can overload the server by disrupting regular workflows of the operating system, the file system and file services like Acronis Files Connect.įor macOS 10.9-10.12, the best solutions are workarounds that can improve the Mac's behavior. With multiple Macs connected, a server can receive millions of requests. The Mac can flood the server with requests for background enumeration of the folders - sometimes 10,000 or more requests per second.The Finder won’t do anything else until it finishes each update request.This occurs over any AFP connection, even to another Mac client or server. Unfortunately, in OS X 10.9, Apple introduced a bug that still remains through 10.12: If Icon Previews are enabled (the default), the Finder will continue to ask the server for updates about all the visited folders every 30 seconds, even when relevant Finders windows have been closed. The cache is not automatically pruned, so it can grow large as the user browses folders. One characteristic is that the Finder builds a cache of information about every folder a user visits during a session. The Finder generally works well but has some quirks that can affect performance, especially over networks. The Finder is the default application that macOS uses for working with files and folders, similar to File Explorer on Windows. See below for recommendations for earlier version of macOS. Solution: This issue is resolved in macOS High Sierra 10.13. It is still present in later versions: OS X Yosemite (10.10), Capitan (11.11), and Sierra (10.12). Symptoms: A Mac exhibits slow browsing of network folders and sporadic file locks.Ĭause: This can be the result of a specific Finder bug that Apple that introduced in OS X Mavericks (10.9).
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