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Accumulo, mail # dev - client config files


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Re: client config files
Keith Turner 2013-08-02, 18:28
On Thu, Aug 1, 2013 at 4:33 PM, Joey Echeverria <[EMAIL PROTECTED]> wrote:

> I generally prefer properties files to XML, but there may be a argument
> for reusing Hadoop's SSL configuration system which is XML based.
>

I also prefer prefer properties files over XML.   The only reason I can
think that we might want to use XML is for consistency with Hadoop and
Accumulo server side config.  But it does not seem like a very compelling
reason, its not like it prop files are hard to use once you realize you
need to use them.
>
>
> -Joey
> —
> Sent from Mailbox for iPhone
>
> On Thu, Aug 1, 2013 at 3:08 PM, Christopher <[EMAIL PROTECTED]> wrote:
>
> > ^ Another reason I like commons-configuration here is for
> > property-interpolation with HierarchicalConfiguration.
> > --
> > Christopher L Tubbs II
> > http://gravatar.com/ctubbsii
> > On Thu, Aug 1, 2013 at 3:07 PM, Christopher <[EMAIL PROTECTED]> wrote:
> >> I absolutely DO think they should be combined in a properties file
> >> located in $HOME/.accumulo/config
> >> I absolutely DO NOT think this client configuration should be
> >> exclusive to the shell, and I absolutely DO NOT think it should be
> >> XML.
> >>
> >> I would love to see all our clients/client code use
> >> commons-configuration to hold properties from the properties file, so
> >> that only a --config parameter is needed (with reasonable defaults, so
> >> even that is not absolutely necessary). I also think that every
> >> property that can exist in the file should be possible to override on
> >> the command-line. I personally prefer to use system properties, using
> >> commons-configuration's HierarchicalConfiguration, but jcommander may
> >> make it easier to do the same thing in a slightly different way.
> >>
> >> --
> >> Christopher L Tubbs II
> >> http://gravatar.com/ctubbsii
> >>
> >>
> >> On Thu, Aug 1, 2013 at 12:25 PM, Michael Berman <[EMAIL PROTECTED]>
> wrote:
> >>> As part of SSL, we need to introduce configuration so accumulo clients
> >>> (such as ZooKeeperInstance) can find trust stores.  It seems like this
> has
> >>> a lot in common with shell config files in ACCUMULO-1397.  Do people
> think
> >>> these should be combined, or should the shell have its own separate
> config?
> >>>  I was imagining a simple java .properties-style key=value list.  Does
> this
> >>> seem reasonable?  Or should the format be more like the xml of the site
> >>> config?  I was also imagining looking through a list of files that
> would
> >>> each override settings, perhaps in the following order (from lowest to
> >>> highest priority):
> >>>
> >>> /etc/accumulo/client.conf
> >>> $ACCUMULO_HOME/conf/client.conf
> >>> $HOME/.accumulo/config
> >>> --client-config command line switch for shell or explicit parameter
> passed
> >>> to ZooKeeperInstance
> >>>
> >>> Does this sound good to y'all?  Should the explicit switch/parameter
> have
> >>> per-property override semantics, or should it just be used as the
> exclusive
> >>> source of properties if specified?
> >>>
> >>> Mike Drob, are you actively working on the shell side of this already?
>  I
> >>> see that bug is assigned to you...
> >>>
> >>> Thanks,
> >>> Michael
>