On Thu, Apr 25, 2013 at 11:40 AM, Andres Danter <[email protected]> wrote:
> Excellent feedback, Keith. Thanks. > > I should have mentioned the REST API in the proposal. I'm not sure if I > can use it for the CLI. I will certainly try, since I would like to adhere > to the Ambari architecture as much as possible. > > As for your other points: > > *3.1.1 loggers do not exists in 1.5 ... so would only need to consider them > if working w/ 1.4 . I suppose you would want to work Accumulo 1.4, since > that the current stable release.* > > Yes. I was going to work with Accumulo 1.4, but it is good to know that the > loggers are not supported in 1.5. > > *3.1.3 > Accumulo supports reading system config from xml local file and then > zookeeper (whats set in zookeeper takes precedence). The nice thing about > setting something a config zookeeper, is that process restart is not > required.* > > Good to know this too. Does this only affect Zookeeper? I should > distinguish between processes that may need restarts to load a > configuration vs those that do not. Is the Zookeeper process the only one > like that? > > Not sure about zookeeper, I think it requires a restart. Accumulo can optionally store a lot of its configuration in zookeeper. When Accumulo configuration stored in zookeeper is changed, Accumulo processes may pick up these config changes immediately w/o restart. Some properties do require a restart when changed in zookeeper. This is documented in Accumulo config documentation. > > *For section 3.2, are you proposing adding features to the existing Ambari > GUI? If so, are the Accumulo specific?* > > I am proposing to add features to the existing Ambari GUI. The idea here > is that something like user access controls can be generalized so that any > Hadoop component being managed by Ambari is able to utilize them. I'm > hoping that the Ambari PMC is OK with me doing this. I do not want to > introduce any Accumulo-specific features that would make no sense for other > components. > * > It seems that Ambari relies on RPMs. Its possible you may have to spend > time creating Accumulo RPMs that are useful for Ambari. You may want to > think about allocating some time for this. Christopher and John can give > you more info about the current state of Accumulo RPMs.* > > This is a very good point. While building RPMs is not difficult, it does > require time to setup the configuration and test the builds. I will > include time for this in the proposal. > I suppose I am really thinking about are scripts for starting and stopping Accumulo. For an RPM to be useful it should provide good /etc/init.d scripts for starting and stopping Accumulo processes. I am not sure what the status of these scripts is in the various RPMs built by Accumulo. This may not even be a concern, I am not sure how Ambari starts and stop services. If you have not already, its something to consider when scheduling. > > Thanks again, Keith. > > Andres > > > > > On Thu, Apr 25, 2013 at 10:54 AM, Keith Turner <[email protected]> wrote: > > > About the REST API, I meant to ask if this could be used from the command > > line currently? Or is too cumbersome? > > > > > > On Thu, Apr 25, 2013 at 10:09 AM, Andres Danter <[email protected]> > wrote: > > > > > Yup. Looks like that's the way to go. Here is the link to the > document. > > > Let me know if you have any problems accessing it. > > > > > > > > > > > > https://docs.google.com/file/d/0BxBY29P7A1RgVnZscGcycExDbEU/edit?usp=sharing > > > > > > > > > On Thu, Apr 25, 2013 at 9:51 AM, Keith Turner <[email protected]> > wrote: > > > > > > > Nothing. I suppose the mailing list is stripping it off. Could post > > it > > > as > > > > an attachment to the ticket or put it on google drive or dropbox and > > > send a > > > > link. > > > > > > > > > > > > On Thu, Apr 25, 2013 at 9:44 AM, Andres Danter <[email protected]> > > > wrote: > > > > > > > > > Weird. I see the attachment on the email I sent, which means that > it > > > > > might have been stripped off. Here it is again. Let me know if > you > > > > still > > > > > don't see it. > > > > > > > > > > Thanks, > > > > > > > > > > Andres > > > > > > > > > > > > > > > On Thu, Apr 25, 2013 at 9:18 AM, Keith Turner <[email protected]> > > > wrote: > > > > > > > > > >> was there supposed to be an attachment? > > > > >> > > > > >> > > > > >> On Thu, Apr 25, 2013 at 2:19 AM, Andres Danter <[email protected] > > > > > > wrote: > > > > >> > > > > >> > Hi Billie, > > > > >> > > > > > >> > Here is a draft of my proposal. I've yet to write the technical > > > > >> approach > > > > >> > section (have not idea what I'm going to put there) and the > "about > > > me" > > > > >> > section. I definitely appreciate any feedback from you and > anyone > > > in > > > > >> the > > > > >> > development group. > > > > >> > > > > > >> > Thank you, > > > > >> > > > > > >> > Andres > > > > >> > > > > > >> > > > > > > > > > > > > > > > > > > > >
