Re: [Xen-devel] [OSSTEST PATCH 3/9] mg-schema-test-database: Wipe previous local plan data

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Thu, 2015-12-17 at 17:06 +0000, Ian Jackson wrote:
> Whatever is in the user's cwd is unlikely to correspond to anything
> real.ÂÂIn principle it might be possible to obtain an official copy
> from the real daemons, and massage it, or something, but that's a lot
> of work.
> 
> Instead, just remove it when we start the test db daemons.
> 
> In principle it would be more correct to remove it when we set up the
> test db, because it is at that point that we create the new view of
> the world.ÂÂRemoving the old plan data when we start daemons means
> that if the user, who is testing, restarts the daemons, the
> newly-created queue daemon does not have information about allocations
> made with the previous daemon, and instead regards those allocations
> as rogue.
> 
> However, removing the file only when the daemons are started means
> that if the user has saved a data-plan.pl in their cwd for some other
> reason we don't remove it unless the user is actually going to run the
> daemons.ÂÂSo I think this is preferable.
> 
> Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Would it make sense to remove data-projection.pl too? I suppose it isn't
consumed anywhere so is more or less harmless.

OOI do these test mode daemons do anything sensible with resource-
{plan,projection}.html and summary.html? Looks like they would clobber
things in $c{WebspaceFile}, which might be surprising to a user with two
test instances on the go. But that's a pretty obscure corner case I
suspect...

> ---
> Âmg-schema-test-database |ÂÂÂÂ2 ++
> Â1 file changed, 2 insertions(+)
> 
> diff --git a/mg-schema-test-database b/mg-schema-test-database
> index 818cf89..a4cb732 100755
> --- a/mg-schema-test-database
> +++ b/mg-schema-test-database
> @@ -553,6 +553,8 @@ daemons)
> Â     withtest \
> Â     exec_resetting_sigint ./ms-queuedaemon &
> Â
> +     rm -f data-plan.pl
> +
> Â     wait
> Â
> Â     ;;

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