> Date: Thu, 14 Aug 2014 06:51:02 -0600
> From: s...@elyograg.org
> To: solr-user@lucene.apache.org
> Subject: Re: Replication Issue with Repeater Please help
>
> On 8/14/2014 2:09 AM, waqas sarwar wrote:
> > Thanks Shawn. What i got is Circular replication is totally impossible &
> > Solr fails in distributed environment. Then why solr documentation says
> > that configure "REPEATER" for distributed architecture, because "REPEATER"
> > behave like master-slave at a time.
> > Can i configure SolrCloud on LAN, or i've to configure zookeeper myself.
> > Please provide me any solution for LAN distributed servers. If zookeeper in
> > only solution then provide me any link to configure it that can help me &
> > to avoid wrong direction.
>
> The repeater config is designed to avoid master overload from many
> slaves. So instead of configuring ten slaves to replicate from one
> master, you configure two slaves to replicate directly from your master,
> and then you configure those as repeaters. The other eight slaves are
> configured so that four of them replicate from each of the repeaters
> instead of the true master, reducing the load.
>
> SolrCloud is the easiest way to build a fully distributed and redundant
> solution. It is designed for a LAN. You configure three machines as
> your zookeeper ensemble, using the zookeeper download and instructions
> for a clustered setup:
>
> http://zookeeper.apache.org/doc/r3.4.6/zookeeperAdmin.html#sc_zkMulitServerSetup
>
> The way to start Solr in cloud mode is to give it a zkHost system
> property. That informs Solr about all of your ZK servers. If you have
> another way of setting that property, you can use that instead. I
> strongly recommend using a chroot with the zkHost parameter, but that is
> not required. Search the zookeeper page linked above for "chroot" to
> find a link to additional documentation about chroot.
>
> You can use the same servers for ZK as you do for Solr, but be aware
> that if Solr puts a large I/O load on the disks, you may want the ZK
> database to be on its own disks(s) so that it responds quickly.
> Separate servers is even better, but not strictly required unless the
> servers are under extreme load.
>
> https://cwiki.apache.org/confluence/display/solr/SolrCloud
>
> You will find a "Getting Started" link on the page above. Note that the
> "Getting Started" page talks about a zkRun option, which starts an
> embedded zookeeper as part of Solr. I strongly recommend that you do
> NOT take this route, except for *initial* testing. SolrCloud works much
> better if the Zookeeper ensemble is in its own process, separate from Solr.
>
> Thanks,
> Shawn
>
> Thank you so much. You helped alot. One more question is that can i use only
> one zookeeper server to manage 3 solr servers, or i've to configure 3
> zookeeper servers for each. >And zookeeper servers should be stand alone or
> better to use same solr server machine ?>>Best Regards,>Waqas
>
