# Openhabian /var/log always filling up

**URL:** <https://community.openhab.org/t/openhabian-var-log-always-filling-up/157954>\
**Category:** openHABian\
**Created:** [August 21, 2024, 10:30pm UTC](https://community.openhab.org/t/openhabian-var-log-always-filling-up/157954 "2024-08-21T22:30:04Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![tommycw10](https://community.openhab.org/letter_avatar_proxy/v4/letter/t/4491bb/32.png) [@tommycw10](https://community.openhab.org/u/tommycw10)\
**Post date:** [August 21, 2024, 10:30pm UTC](https://community.openhab.org/t/openhabian-var-log-always-filling-up/157954/1 "2024-08-21T22:30:05Z")

</div>

I’m running openhabian - Release = Raspbian GNU/Linux 12 (bookworm)

I’ve been having issues with my /var/log filling up all the time since I upgraded from an older openhabian release.

```auto
openhabian@opi:~ $ df -h | grep log
overlay2 452M 408M 9.1M 98% /var/log

```

I just deleted several filed to get it down to 98% full, but this is what it shows.

as per the the default setup, I have it mounted in /etc/ztab:

```auto
# log alg mem_limit disk_size target_dir bind_dir oldlog_dir
log zstd 200M 500M /var/log /log.bind

```

The strange thing to me here is that this is showing 408MB used (of 452). It seems strange as when I went through deleting anything in the MB range, I ended up with only files in the kB range left and it didn’t feel right that those kB files could add up to 400+MB.

So I check the dir usage with du, I get only 19M:

```auto
openhabian@opi:~ $ sudo du -sbh /var/log
19M	/var/log

```

Where are these other 389MB being used?

---

<div class="post-metadata">

**Author:** ![rlkoshak](https://community.openhab.org/user_avatar/community.openhab.org/rlkoshak/32/75251_2.png) [@rlkoshak](https://community.openhab.org/u/rlkoshak)\
**Post date:** [August 22, 2024, 12:22am UTC](https://community.openhab.org/t/openhabian-var-log-always-filling-up/157954/2 "2024-08-22T00:22:28Z")

</div>

If it’s a stock openHABian the log folder is in zram. Zram uses compression which I think can interfere with du. At heart I’ve seen some weirdness in the past.

what I would try is now you’ve deleted the files is to reboot. That should flush the changes it to disk and when the machine comes back up it won’t have anything to lead and maybe show a reasonable usage.

If not, will probably have to wait for an expert to chime in.

---

<div class="post-metadata">

**Author:** ![mstormi](https://community.openhab.org/user_avatar/community.openhab.org/mstormi/32/55857_2.png) [@mstormi](https://community.openhab.org/u/mstormi)\
**Post date:** [August 26, 2024, 8:53am UTC](https://community.openhab.org/t/openhabian-var-log-always-filling-up/157954/3 "2024-08-26T08:53:20Z")

</div>

It does not happen on stock openHABian but it’s impossible to tell what’s different on your system (BTW bookworm is a Linux release - that does not say much about the openHABian version you are running).  
openHABian v1.9.2 was just released and has important changes as to zram, too.

Please get it to reinstall your box, then import your old config.