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Posted to dev@logging.apache.org by Ralph Goers <ra...@dslextreme.com> on 2018/12/02 06:06:26 UTC
Filename too long
Gary, when I clone the git repo to my Windows VM I am getting the error message
error: unable to create file log4j-1.2-api/src/test/resources/config-1.2/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/src/test/resources/log4j.properties: Filename too long
How are you dealing with this?
Ralph
Re: Filename too long
Posted by Thorsten Schöning <ts...@am-soft.de>.
Guten Tag Dominik Psenner,
am Freitag, 22. Februar 2019 um 22:35 schrieben Sie:
> I wonder when the (not so) "special" characters ":?" will
> become acceptable in file and directory names..
Most likely never, because both are already in use: ":" for Alternate
Data Streams which are pretty much the same like Extended Attributes
on other file systems.
https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc781134%28v%3dws.10%29#multiple-data-streams
https://docs.microsoft.com/en-us/windows/desktop/fileio/file-streams#naming-conventions-for-streams
And as the example for long Unicode paths already showed, "?" is
heavily used in internal namespaces for various objects:
https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#nt-namespaces
Mit freundlichen Grüßen,
Thorsten Schöning
--
Thorsten Schöning E-Mail: Thorsten.Schoening@AM-SoFT.de
AM-SoFT IT-Systeme http://www.AM-SoFT.de/
Telefon...........05151- 9468- 55
Fax...............05151- 9468- 88
Mobil..............0178-8 9468- 04
AM-SoFT GmbH IT-Systeme, Brandenburger Str. 7c, 31789 Hameln
AG Hannover HRB 207 694 - Geschäftsführer: Andreas Muchow
Re: Filename too long
Posted by Dominik Psenner <dp...@gmail.com>.
Thanks Thorsten! I was not aware of these changes. Finally a step into the
right direction. I wonder when the (not so) "special" characters ":?" will
become acceptable in file and directory names..
--
Dominik Psenner
On Thu, Feb 21, 2019, 11:22 Thorsten Schöning <tschoening@am-soft.de wrote:
> Guten Tag Dominik Psenner,
> am Sonntag, 2. Dezember 2018 um 08:58 schrieben Sie:
>
> > Unfortunately windows in the year
> > 2018 still has a fixed path limit of something along 260 characters.
>
> It doesn't:
>
> > The Windows API has many functions that also have Unicode versions
> > to permit an extended-length path for a maximum total path length of
> > 32,767 characters.
>
>
> https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#maximum-path-length-limitation
>
> In case of legacy software which doesn't care about long Unicode paths
> being available for decades:
>
> > Starting in Windows 10, version 1607, MAX_PATH limitations have been
> > removed from common Win32 file and directory functions. However, you
> > must opt-in to the new behavior.
>
> > HKLM\SYSTEM\CurrentControlSet\Control\FileSystem LongPathsEnabled (Type:
> REG_DWORD)
> > Computer Configuration > Administrative Templates > System > Filesystem
> > Enable NTFS long paths
>
>
> https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#maximum-path-length-limitation
>
> Mit freundlichen Grüßen,
>
> Thorsten Schöning
>
> --
> Thorsten Schöning E-Mail: Thorsten.Schoening@AM-SoFT.de
> AM-SoFT IT-Systeme http://www.AM-SoFT.de/
>
> Telefon...........05151- 9468- 55
> Fax...............05151- 9468- 88
> Mobil..............0178-8 9468- 04
>
> AM-SoFT GmbH IT-Systeme, Brandenburger Str. 7c, 31789 Hameln
> AG Hannover HRB 207 694 - Geschäftsführer: Andreas Muchow
>
>
Re: Filename too long
Posted by Thorsten Schöning <ts...@am-soft.de>.
Guten Tag Dominik Psenner,
am Sonntag, 2. Dezember 2018 um 08:58 schrieben Sie:
> Unfortunately windows in the year
> 2018 still has a fixed path limit of something along 260 characters.
It doesn't:
> The Windows API has many functions that also have Unicode versions
> to permit an extended-length path for a maximum total path length of
> 32,767 characters.
https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#maximum-path-length-limitation
In case of legacy software which doesn't care about long Unicode paths
being available for decades:
> Starting in Windows 10, version 1607, MAX_PATH limitations have been
> removed from common Win32 file and directory functions. However, you
> must opt-in to the new behavior.
> HKLM\SYSTEM\CurrentControlSet\Control\FileSystem LongPathsEnabled (Type: REG_DWORD)
> Computer Configuration > Administrative Templates > System > Filesystem > Enable NTFS long paths
https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#maximum-path-length-limitation
Mit freundlichen Grüßen,
Thorsten Schöning
--
Thorsten Schöning E-Mail: Thorsten.Schoening@AM-SoFT.de
AM-SoFT IT-Systeme http://www.AM-SoFT.de/
Telefon...........05151- 9468- 55
Fax...............05151- 9468- 88
Mobil..............0178-8 9468- 04
AM-SoFT GmbH IT-Systeme, Brandenburger Str. 7c, 31789 Hameln
AG Hannover HRB 207 694 - Geschäftsführer: Andreas Muchow
Re: Filename too long
Posted by Dominik Psenner <dp...@gmail.com>.
As a guideline I recommend my fellow developers to not have reduntant names
in the directory paths of a repository. In your example I counted 4 times
hadoop-yarn which is 3 times too many. Unfortunately windows in the year
2018 still has a fixed path limit of something along 260 characters.
--
Dominik Psenner
On Sun, Dec 2, 2018, 07:22 Ralph Goers <ralph.goers@dslextreme.com wrote:
> Never mind. Figured out the solution.
>
> Ralph
>
> > On Dec 1, 2018, at 11:06 PM, Ralph Goers <ra...@dslextreme.com>
> wrote:
> >
> > Gary, when I clone the git repo to my Windows VM I am getting the error
> message
> >
> > error: unable to create file
> log4j-1.2-api/src/test/resources/config-1.2/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/src/test/resources/log4j.properties:
> Filename too long
> >
> > How are you dealing with this?
> >
> > Ralph
> >
>
>
>
Re: Filename too long
Posted by Ralph Goers <ra...@dslextreme.com>.
Never mind. Figured out the solution.
Ralph
> On Dec 1, 2018, at 11:06 PM, Ralph Goers <ra...@dslextreme.com> wrote:
>
> Gary, when I clone the git repo to my Windows VM I am getting the error message
>
> error: unable to create file log4j-1.2-api/src/test/resources/config-1.2/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/src/test/resources/log4j.properties: Filename too long
>
> How are you dealing with this?
>
> Ralph
>