Re: {bb} The bb_rename error problem

[Robert-Andre Croteau <robert@bb4.com>]

brent.mccrackin@bell.ca wrote:

> Duplicate entries have most definitely been ruled out.
>
> A busy BB Server has been confirmed as part of the problem :-)  However,
> with BBGEN everything completes within the BBSLEEP cycle (if it didn't,
> then that would be reported in BBOUT as well - which I haven't seen).
>
> BBLOGSTATUS is dynamic, and has been for a very long time.  I forgot to
> mention that in my analysis.
>
> You've said that BBVAR/logs/.somehost.test doesn't exist anymore when
> the error occurs.
>
> What if BBVAR/logs/.somehost.test doesn't exist *YET* when bb_rename
> comes around to try and rename it?

It got created about 6 lines before the rename.  The rename is required
otherwise when mkbb.sh runs, it may encountered a status being created
and its timestamp is not yet changed 30 mins in the future (must do
it after the status is written). So a temp file is created and then
rename with the correct timestamp.

  I suspect that with a very busy I/O
> load, the write of the incoming status file to disk hasn't happened or
> failed in some manner that wasn't caught, which results in the rename
> process subsequently failing.  This also results in the related updates
> to the hist and histlogs files being missed.

try bblogs (only bblogs) on a tmpfs (swap filesystem just like /tmp)
let us know if that helps

also what's the load avg on that box ?

bye
--
Robert-Andre Croteau    BSD,MOTU
Quest Software, Inc.            Big Brother, Product Architect
http://www.quest.com/                          http://bb4.com/
+1 (514) 238-9374
        Si le bonheur ne s'achete pas alors louez le.

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