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 <[email protected]> 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 < > [email protected]> 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 <[email protected]> >> 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 < >>> [email protected]> 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 < >>>> [email protected]> 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 <[email protected]> >>>>> 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 >>>>>> [email protected] >>>>>> Modify settings or unsubscribe at: >>>>>> https://lists.ubuntu.com/mailman/listinfo/juju >>>>>> >>>>>> >>>>> >>>> >>> >> >
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