[Gluster-users] trashcan file size limit

[Jackie Tung]

Thanks Jiffin, filed https://bugzilla.redhat.com/show_bug.cgi?id=1386766 <https://bugzilla.redhat.com/show_bug.cgi?id=1386766>

In my limited knowledge of the original reasons for 1GB hardcode, either removing the limit altogether, or an additional “override" option parameter would be preferable in my humble opinion.

> On Oct 19, 2016, at 2:02 AM, Jiffin Tony Thottan <jthottan at redhat.com> wrote:
> 
> Hi Jackie,
> 
> On 18/10/16 23:48, Jackie Tung wrote:
>> Hi all,
>> 
>> Documentation says:  https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Trash/ <https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Trash/>
>> 
>> gluster volume set <VOLNAME> features.trash-max-filesize <size>
>> 
>> This command can be used to filter files entering trash directory based on their size. Files above trash_max_filesize are deleted/truncated directly.Value for size may be followed by multiplicative suffixes as KB(=1024 bytes), MB(=1024*1024 bytes) and GB(=1024*1024*1024 bytes). Default size is set to 5MB. Considering the fact that trash directory is consuming the glusterfs volume space, trash feature is implemented to function in such a way that it directly deletes/truncates files with size > 1GB even if this option is set to some value greater than 1GB.
>> 
>> Is there any workaround (short of changing source code and rebuilding) that can allow me to override this 1GB hard limit?  We store a lot of large files, and having a limit of 1GB greatly reduces the value of this trashcan feature for us.
>> 
> 
> 
> I don't remember exactly reason behind having a hard coded value for upper boundary, one reason may be to limit space used 
> by trash directory and for truncate operation it result in performance hit. The hard coded value can be found at 
> xlators/features/trash/src/trash.h:32 (GF_ALLOWED_MAX_FILE_SIZE) . If you are interested , then change value(according to 
> your preference) in the code and send out a patch to http://review.gluster.org/ <http://review.gluster.org/> as well.
> 
> As first step please file a bug https://bugzilla.redhat.com/ <https://bugzilla.redhat.com/> under community->glusterfs->trash xlator.
> 
> Regards,
> Jiffin
> 
>> Many thanks,
>> Jackie
>> 
>> 
>> 
>> 
>> 
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>> 
>> 
>> 
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