[OpenIndiana-discuss] safely cleanup pkg cache?
Richard L. Hamilton
rlhamil at smart.net
Sun Feb 21 09:02:19 UTC 2021
While I'm not sure why extra snapshots seem to be involved, here's what I actually see when going through an update, looking at the results, and cleaning up.
# starting with just the running BE, no extra snapshots:
root at openindiana:~# pkg update
Packages to install: 10
Packages to update: 377
Create boot environment: Yes
Create backup boot environment: No
DOWNLOAD PKGS FILES XFER (MB) SPEED
Completed 387/387 5947/5947 116.2/116.2 617k/s
PHASE ITEMS
Removing old actions 1139/1139
Installing new actions 1851/1851
Updating modified actions 6684/6684
Updating package state database Done
Updating package cache 377/377
Updating image state Done
Creating fast lookup database Done
A clone of openindiana-2021:02:20 exists and has been updated and activated.
On the next boot the Boot Environment openindiana-2021:02:21 will be
mounted on '/'. Reboot when ready to switch to this updated BE.
---------------------------------------------------------------------------
NOTE: Please review release notes posted at:
https://docs.openindiana.org/release-notes/latest-changes/
---------------------------------------------------------------------------
root at openindiana:~# beadm list
BE Active Mountpoint Space Policy Created
openindiana-2021:02:20 N / 409.50K static 2021-02-20 02:01
openindiana-2021:02:21 R - 18.03G static 2021-02-21 03:43
root at openindiana:~# beadm list -a
BE/Dataset/Snapshot Active Mountpoint Space Policy Created
openindiana-2021:02:20
rpool1/ROOT/openindiana-2021:02:20 N / 409.50K static 2021-02-20 02:01
rpool1/ROOT/openindiana-2021:02:21 at 2021-02-21-08:43:19 - - 116K static 2021-02-21 03:43
rpool1/ROOT/openindiana-2021:02:21 at 2021-02-21-08:40:01 - - 1.00M static 2021-02-21 03:40
rpool1/ROOT/openindiana-2021:02:21/var at 2021-02-21-08:43:19 - - 1.43M static 2021-02-21 03:43
rpool1/ROOT/openindiana-2021:02:21/var at 2021-02-21-08:40:01 - - 30.66M static 2021-02-21 03:40
openindiana-2021:02:21
rpool1/ROOT/openindiana-2021:02:21 R - 18.03G static 2021-02-21 03:43
root at openindiana:~# exec shutdown -i6 -y -g0
# after the reboot:
root at openindiana:~# beadm list
BE Active Mountpoint Space Policy Created
openindiana-2021:02:20 - - 22.53M static 2021-02-20 02:01
openindiana-2021:02:21 NR / 18.04G static 2021-02-21 03:43
root at openindiana:~# beadm list -a
BE/Dataset/Snapshot Active Mountpoint Space Policy Created
openindiana-2021:02:20
rpool1/ROOT/openindiana-2021:02:20 - - 22.53M static 2021-02-20 02:01
rpool1/ROOT/openindiana-2021:02:21 at 2021-02-21-08:43:19 - - 1.00M static 2021-02-21 03:43
rpool1/ROOT/openindiana-2021:02:21 at 2021-02-21-08:40:01 - - 1.00M static 2021-02-21 03:40
rpool1/ROOT/openindiana-2021:02:21/var at 2021-02-21-08:43:19 - - 1.59M static 2021-02-21 03:43
rpool1/ROOT/openindiana-2021:02:21/var at 2021-02-21-08:40:01 - - 30.66M static 2021-02-21 03:40
openindiana-2021:02:21
rpool1/ROOT/openindiana-2021:02:21 NR / 18.04G static 2021-02-21 03:43
# since it came up, I can probably blow away the old stuff:
root at openindiana:~# beadm destroy openindiana-2021:02:20
Are you sure you want to destroy openindiana-2021:02:20?
This action cannot be undone (y/[n]): y
Destroyed successfully
root at openindiana:~# beadm list -a
BE/Dataset/Snapshot Active Mountpoint Space Policy Created
openindiana-2021:02:21
rpool1/ROOT/openindiana-2021:02:21 NR / 18.04G static 2021-02-21 03:43
rpool1/ROOT/openindiana-2021:02:21/var at 2021-02-21-08:40:01 - - 350.62M static 2021-02-21 03:40
rpool1/ROOT/openindiana-2021:02:21 at 2021-02-21-08:40:01 - - 436.01M static 2021-02-21 03:40
root at openindiana:~# beadm destroy openindiana-2021:02:21 at 2021-02-21-08:40:01
Are you sure you want to destroy openindiana-2021:02:21 at 2021-02-21-08:40:01?
This action cannot be undone (y/[n]): y
Destroyed successfully
root at openindiana:~# beadm list -a
BE/Dataset/Snapshot Active Mountpoint Space Policy Created
openindiana-2021:02:21
rpool1/ROOT/openindiana-2021:02:21 NR / 17.27G static 2021-02-21 03:43
> On Feb 21, 2021, at 03:17, Andreas Wacknitz <A.Wacknitz at gmx.de> wrote:
>
> Am 21.02.21 um 09:10 schrieb Toomas Soome via openindiana-discuss:
>>
>>> On 21. Feb 2021, at 08:45, Tim Mooney via openindiana-discuss <openindiana-discuss at openindiana.org> wrote:
>>>
>>>
>>> All-
>>>
>>> My space-constrained OI hipster build VM is running low on space.
>>>
>>> It looks like either pkg caching or pkg history is using quite a lot of
>>> space:
>>>
>>> $ pfexec du -ks /var/pkg/* | sort -n
>>> 0 /var/pkg/gui_cache
>>> 0 /var/pkg/lock
>>> 0 /var/pkg/modified
>>> 0 /var/pkg/ssl
>>> 6 /var/pkg/pkg5.image
>>> 955 /var/pkg/lost+found
>>> 5557 /var/pkg/history
>>> 23086 /var/pkg/license
>>> 203166 /var/pkg/cache
>>> 241106 /var/pkg/state
>>> 9271692 /var/pkg/publisher
>>>
>>> What is the correct, safe way to clean up anything from pkg that I don't
>>> need?
>>>
>>> The closest information I've found is an article from Oracle on "Minimize
>>> Stored Image Metadata":
>>>
>>> https://docs.oracle.com/cd/E53394_01/html/E54739/minvarpkg.html
>>>
>>> This suggests changing the 'flush-content-cache-on-success' property
>>> to true (OI defaults to False).
>>>
>>> Is that it, or are there other (generally safe) cleanup steps that I could
>>> take too? Is 'pkg purge-history' a good idea?
>>>
>> do not forget to check beadm list -a / zfs list -t snapshot
>>
>> rgds,
>> toomas
>>
> I have a question regarding beadm destroy here:
> I do regularly destroy old BEs with "pfexec beadm destroy <BE name>"
> keeping only a handful BEs.
> Checking with "zfs list -t snapshot" shows that this won't destroy most
> (all?) related snapshots, eg. it typically frees only some mb.
> Thus, my rpool is filling over the time and I have to manually destroy
> zfs snapshots that belong to deleted BEs.
> Is that an intentional behavior of beadm destroy and is there something
> how I can enhance on my procedure?
>
> Regards,
> Andreas
>
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