Filter is not working

[Andrey_bk]

Run sudo zmfilter.pl -f <yourfiltername> from command line
zmfilter.pl -f <PurgeWhenFull>

The command line returns:
-bash: syntax error near unexpected token «newline»

Where can I find out more about why the filter doesn't work?

[dougmccrary]

zmfilter.pl -f PurgeWhenFull

[Andrey_bk]

zmfilter.pl -f PurgeWhenFull
In this case, I get return:

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Option f is ambiguous (filter, filter_id)
Usage:
    zmfilter.pl [-f <filter name>,--filter=<filter name>]
    [--filter_id=<filter id>] | -v, --version

Options:
    -f{filter name}, --filter={filter name} - The name of a specific filter
    to run --filter_id={filter id} - The id of a specific filter to run -v,
    --version - Print ZoneMinder version

[dougmccrary]

Huh. Well this works for me:
sudo zmfilter.pl --filter=PurgeWhenFull

Seems there's a bug with [-f]

[Andrey_bk]

Yes, thank you, it works. I also noticed that if there is a space in the filter name, it should be enclosed in single quotes ''.
For example:

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zmfilter.pl --filter='Update DiskSpace'

Now I get the output, but how do I understand why the filter is not working?

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root@DATASERVER:~# zmfilter.pl --filter=PurgeWhenFull-HDD-Hitachi
21.01.2025 10:34:25.247713 zmfilter[10377].INF [main:181] [Scanning for events using filter 'PurgeWhenFull-HDD-Hitachi']

Here are my filter settings:

[dougmccrary]

That looks good, assuming you've got "Delete all matches" checked.

I take it you've set disk percent at 10 for testing purposes?

You might not notice it working on a single pass - maybe try setting "Limit to first" at 1000 instead of 100?

[Andrey_bk]

Yes, I set it to 10% for testing. The disk is 12% full and there are 288 events in the database. I expect 100 events to be deleted but it doesn't. And even if I run the filter manually from the terminal, nothing happens.
Yes, there is an option "Delete all matches" checked.

[dougmccrary]

Does this drive have reserved space? Default is 5%, so maybe the drive is really at 7%.

[Andrey_bk]

Yes, you are right. I reduced the threshold to 5% and the filter worked. Thank you.

[dougmccrary]

you may want to look into the tune2fs command, especially if hitachi is data only.

[Andrey_bk]

Great! I didn't know about that. It came in handy. Respect.
Set to 0% redundancy because this disk is only used for ZM

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tune2fs -m 0 /dev/sdb1

[dougmccrary]