Re: Bug#727708: Fsck SystemD and its developers and its users. GR to override this please.

[Gergely Nagy <algernon@balabit.hu>]

vitalif@yourcmc.ru writes:

>> It is of course well-known that systemd developers like to make their
>> life more complicated and love to implement binary formats instead of
>> writing simple text parsers, just for the sake of having fun
>> programming
>> them, and absolutely not because they need things like indexing.
>>
>> The same goes for relational databases developers, for example. How
>> silly of them all.
>
> 1) If you really need a binary index, it could be initially put in a
> separate file.
> 2) Binary index isn't needed at all if you just want to print output
> of a service - you can just put output of each unit to its own log
> file and just tail it.
> 3) If you don't want to print only last X lines, but want to print
> full output of a service since last start - you can remember the
> previous log position in the service state structure.
> 4) At a first glance I don't see any _real_ index (i.e. btree)
> implementation in systemd journal, so I assume it still does fullscans
> to print logs for a service - am I correct?
> 5) After all, I don't see why writing 1 regexp is a hard task. And it
> won't be really slower because of (4).

Here's a challenge then: Implement everything the journal does, without
using a binary format, and show us it's not only doable, but performs
similarly.

I would first recommend you read up - and try! - what the journal has to
offer. It's not as simple as you make it out to be.

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