Ivan Friedländer commented on NETBEANS-168:

As I wrote the problems are two broken links and unix socket files.

The problem with symlinks is that the bad code is in multiple modules. And it's 
asynchronous, so it's bad for debugging.

The author of these modules has forgotten that 
uses the FOLLOW_LINKS option. The masterfs linux module takes the status of 
files native from linux. 

And on multiple places the file is checked with File.exist() and that generates 
the file created/deleted loop.

With unix socket files is the is a similar problem from masterfs linux returns 
that file exist and File.exist()  returns false..

The simplest fix is here 

A more complex option is to replace File.exist() to Files.exists(path, 
LinkOption.NOFOLLOW_LINKS)  in all NB source codes.

And exclude "other files" from NB filesystem..


> Background scanning process needs a rethink
> -------------------------------------------
>                 Key: NETBEANS-168
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-168
>             Project: NetBeans
>          Issue Type: Bug
>          Components: ide - Performance, java - Platform, platform - Execution
>    Affects Versions: 8.2, 9.0, 10.0
>         Environment: NetBeans 8.2, Windows 10 x64
>            Reporter: Christian Lenz
>            Priority: Blocker
>              Labels: ca_survey, pull-request-available
>         Attachments: go-to-file.gif, messages - 10.0 vc3.log, messages 10.0 
> vc2.log, messages.log, puls.7z, ui.log, uigestures 10.0 vc, wp-dms.7z
>          Time Spent: 2h
>  Remaining Estimate: 0h
> Often, while cloning, switching branch, merging, opening etc. etc. NetBeans 
> starts Background scanning for changes, but it is not real background, 
> because everything what you want to do then, like changing the branch, 
> commit, push, pull, open project, delete or whatever, is blocking by this 
> task and you can't cancel it, because it is essential.
> Either we need to rethink about this process like to make everything or most 
> of the stuff doing things in parallel or the task should really be 
> cancelable. It is a pain in the ass for big projects when they start to scan 
> for changes. 
> It is a real world case because you acan see it when you work on NetBeans 
> modules.
> Cheers
> Chris

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