Question about "<news>/db/history" file size

[Russ Allbery]

Petr Novopashenniy <pety at rusnet.ru> writes:

> But expire process uses ~1 GBytes of memory.
>
> When history file was ~4,5 GBytes (two weeks ago), expire process uses
> more than 1,2 GBytes of memory. Yes, looks like "expire process size"
> = ~"history.index size".

Yeah, innd has more locality to its writes, but expire writes all over
the place.

> Maybe it is possible not do full memory map (at one time) for history file 
> index (for expire process)? 

It'll be dog-slow.

> And, also, it is possible show number of articles in cnfs buffers (in 
> "cnfsstat -a" output)?
>
> Something like this:
> Buffer news1, size:  47.7 GBytes, position:  28.3 GBytes  10.59 cycles
> Articles count: xxxx?

I believe the CNFS metadata doesn't actually store that information.

> And, if expire process not shutdown correctly, innd remains in "reserved" 
> mode. How I can "ureserve" innd without restart?

ctlinnd go 'reason matching the reserve reason'

-- 
Russ Allbery (rra at stanford.edu)             <http://www.eyrie.org/~eagle/>