Hm... I do not see anything wrong with this part of the code. Looking at [0] you should be getting all three Zookeeper units/conversations.
Would it be possible to share the charm you are building so that I can test it locally or ping us on IRC channel #juju at freenode for a pair debugging session? [0] https://github.com/juju-solutions/interface-zookeeper/blob/master/requires.py#L40 On Tue, May 31, 2016 at 3:19 PM, Tom Barber <t...@analytical-labs.com> wrote: > Okay, slightly different question: > > zookeeper/0 active idle 2.0-beta7 8 > 2181/tcp,9998/tcp 10.106.143.126 Ready (3 zk units) > zookeeper/1 active idle 2.0-beta7 9 > 2181/tcp,9998/tcp 10.106.143.234 Ready (3 zk units) > zookeeper/2 active idle 2.0-beta7 10 > 2181/tcp,9998/tcp 10.106.143.133 Ready (3 zk units) > > I have 3 ZK units and I used the example here: > https://github.com/juju-solutions/interface-zookeeper for the client > config so my function looks like: > > @when('zookeeper.ready') > @when_not('charm.configured') > def configure(zookeeper): > zklist = '' > for zk_unit in zookeeper.zookeepers(): > zklist += add_zookeeper(zk_unit['host'], zk_unit['port']) > zklist = zklist[:-1] > > But it only iterates once even though 3 are listed: > > a) did I do something wrong > b) is this due to some leader election thing and is actually correct? > c) another answer? > > Thanks > > Tom > > -------------- > > Director Meteorite.bi - Saiku Analytics Founder > Tel: +44(0)5603641316 > > (Thanks to the Saiku community we reached our Kickstart > <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> > goal, but you can always help by sponsoring the project > <http://www.meteorite.bi/products/saiku/sponsorship>) > > On 31 May 2016 at 12:37, Tom Barber <t...@analytical-labs.com> wrote: > >> Fair enough, that resolves that then! >> >> Thanks Kos. >> >> Tom >> >> -------------- >> >> Director Meteorite.bi - Saiku Analytics Founder >> Tel: +44(0)5603641316 >> >> (Thanks to the Saiku community we reached our Kickstart >> <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> >> goal, but you can always help by sponsoring the project >> <http://www.meteorite.bi/products/saiku/sponsorship>) >> >> On 31 May 2016 at 12:25, Konstantinos Tsakalozos < >> kos.tsakalo...@canonical.com> wrote: >> >>> Ah, it is clear now, thanks. >>> >>> The Apache Hadoop charms use Zookeeper when in HA mode. The namenode is >>> the charm that relates to Zookeeper [0,1]. So to answer your question the >>> Hadoop charms use ZK but they do not carry ZK under the hood. ZK is >>> treated as separate service/charm. >>> >>> >>> [0] https://github.com/juju-solutions/layer-apache-hadoop-namenode >>> /blob/master/metadata.yaml >>> [1] https://github.com/juju-solutions/layer-apache-hadoop-namenode >>> /blob/master/reactive/namenode_failover.py >>> >>> On Tue, May 31, 2016 at 1:50 PM, Tom Barber <t...@analytical-labs.com> >>> wrote: >>> >>>> No worries Kos >>>> >>>> I'm rubbish at explaining stuff properly! >>>> >>>> My query was more along the lines of "I can see the ZK charms >>>> available, but surely the Hadoop charms use ZK under the hood somewhere, do >>>> any of them expose the ZK relation so you can hook into that", because it >>>> seems like overkill running a second ZK setup if one already exists inside >>>> an existing Juju Hadoop deployment. >>>> >>>> Tom >>>> >>>> >>>> >>>> -------------- >>>> >>>> Director Meteorite.bi - Saiku Analytics Founder >>>> Tel: +44(0)5603641316 >>>> >>>> (Thanks to the Saiku community we reached our Kickstart >>>> <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> >>>> goal, but you can always help by sponsoring the project >>>> <http://www.meteorite.bi/products/saiku/sponsorship>) >>>> >>>> On 31 May 2016 at 11:47, Konstantinos Tsakalozos < >>>> kos.tsakalo...@canonical.com> wrote: >>>> >>>>> I am sorry Tom, I replied to your first email. >>>>> >>>>> Not sure I fully get your question. Not sure what "this" refers to in "Is >>>>> there a way to hook this". >>>>> >>>>> Charms interacting with a Zookeeper quorum need to use this interface: >>>>> http://interfaces.juju.solutions/interface/zookeeper/ . Through the >>>>> zookeeper interface you can be informed about zookeeper units joining and >>>>> departing the quorum. >>>>> >>>>> You can have a single Zookeeper service that you can scale to an odd >>>>> number of units. Then you can have any charm "requiring" the above >>>>> relation >>>>> use the zookeeper service. Typically you would need to construct a >>>>> connection string or edit some configuration file within your charm in >>>>> order to reference the zookeeper units. Have a look at https://github >>>>> .com/juju-solutions/layer-apache-spark/blob/master/lib/charms/layer/ >>>>> apache_spark.py#L175 >>>>> >>>>> Thanks, >>>>> Konstantinos >>>>> >>>>> >>>>> >>>>> >>>>> On Tue, May 31, 2016 at 1:28 PM, Konstantinos Tsakalozos < >>>>> kos.tsakalo...@canonical.com> wrote: >>>>> >>>>>> Hi Tom, >>>>>> >>>>>> Have you looked at: https://jujucharms.com/apache-zookeeper/trusty/3 >>>>>> The apache-zookeeper provides the zookeeper interface, see >>>>>> https://api.jujucharms.com/charmstore/v5/trusty/apache >>>>>> -zookeeper-3/archive/metadata.yaml >>>>>> >>>>>> Thanks, >>>>>> Konstantinos >>>>>> >>>>>> >>>>>> >>>>>> On Tue, May 31, 2016 at 1:13 PM, Tom Barber <t...@analytical-labs.com> >>>>>> wrote: >>>>>> >>>>>>> Morning >>>>>>> >>>>>>> There is a zookeeper interface and a bucket load of Big Data stuff >>>>>>> which all must run ZK under the hood. Is there anything that provides >>>>>>> the >>>>>>> relationit so my charm can hook into ZK? I can't see anything obvious in >>>>>>> the Charm Store. >>>>>>> >>>>>>> Tom >>>>>>> -------------- >>>>>>> >>>>>>> Director Meteorite.bi - Saiku Analytics Founder >>>>>>> Tel: +44(0)5603641316 >>>>>>> >>>>>>> (Thanks to the Saiku community we reached our Kickstart >>>>>>> <http://kickstarter.com/projects/2117053714/saiku-reporting-interactive-report-designer/> >>>>>>> goal, but you can always help by sponsoring the project >>>>>>> <http://www.meteorite.bi/products/saiku/sponsorship>) >>>>>>> >>>>>>> -- >>>>>>> Juju mailing list >>>>>>> Juju@lists.ubuntu.com >>>>>>> Modify settings or unsubscribe at: >>>>>>> https://lists.ubuntu.com/mailman/listinfo/juju >>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >
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