Re: zfs list output RELENG_13 vs RELENG_14

From: mike tancsa <mike_at_sentex.net>
Date: Fri, 20 Oct 2023 15:25:21 UTC
On 10/20/2023 11:12 AM, Miroslav Lachman wrote:
> On 20/10/2023 14:08, mike tancsa wrote:
>> Hi all,
>>
>>      Just wondering if this change in output was on purpose or 
>> accidental. It breaks telegraf parsing for one thing, perhaps other 
>> scripts as well. In RELENG_13 we have
>
> It is wrong or the man page is outdated. zfs-list(8) still shows
>
> -H  Used for scripting mode.  Do not print headers and separate fields
>     by a single tab instead of arbitrary white space.
>
> -p  Display numbers in parsable (exact) values.
>
This feels like a bug.   Actually, I think there might be 2 bugs here.  
Its not actually showing the snapshot usage. I will start a separate 
thread for that.


>> zfs list -Hp -o name,avail,used,usedsnap,usedds
>>
>>   zfs list -Hp -o name,avail,used,usedsnap,usedds
>> cageroot        723864289280    216733548544    0       98304
>> cageroot/ROOT   723864289280    17766383616     0       98304
>> cageroot/ROOT/default   723864289280    17766285312     0 17766285312
>> cageroot/tmp    723864289280    21332996096     0 21332996096
>> cageroot/usr    723864289280    124012130304    0       98304
>>
>> ...
>>
>> vs
>>
>> releng_14
>>
>> # zfs list -Hp -o name,avail,used,usedsnap,usedds
>> zroot   10016657408     15467933696     -       -
>> zroot/ROOT      10016657408     4927225856      -       -
>> zroot/ROOT/default      10016657408     4926791680      - -
>> zroot/home      10016657408     778240  -       -
>> zroot/tmp       10016657408     589824  -       -
>> zroot/usr       10016657408     10526662656     -       -
>> zroot/usr/obj   10016657408     430080  -       -
>> zroot/usr/ports 10016657408     10525368320     -       -
>>
>> with the dashes for zero values.
>
> Kind regards
> Miroslav Lachman
>
>