This should answer your question: https://zookeeper.apache.org/doc/r3.2.2/zookeeperOver.html#sc_designGoals
On 11/29/15, 12:04 PM, "Salman Ansari" <salman.rah...@gmail.com> wrote: >my point is that what is the exact difference between the whole list and >one zookeeper? Moreover, I think this issue is related to Windows command >as mentioned here >http://stackoverflow.com/questions/28837827/solr-5-0-unable-to-start-solr-with-zookeeper-ensemble > > >On Sun, Nov 29, 2015 at 10:55 PM, Don Bosco Durai <bo...@apache.org> wrote: > >> It is highly recommended to list all, but for testing, you might be able >> to get away giving only one. >> >> If the list doesn’t work, then you might even want to look into zookeeper >> and see whether they are setup properly. >> >> Bosco >> >> >> >> >> >> On 11/29/15, 11:51 AM, "Salman Ansari" <salman.rah...@gmail.com> wrote: >> >> >but the point is: do I really need to list all the zookeepers in the >> >ensemble when starting solr or I can just specify one of them? >> > >> >On Sun, Nov 29, 2015 at 10:45 PM, Don Bosco Durai <bo...@apache.org> >> wrote: >> > >> >> You might want to check the logs for why solr is not starting up. >> >> >> >> >> >> Bosco >> >> >> >> >> >> On 11/29/15, 11:30 AM, "Salman Ansari" <salman.rah...@gmail.com> wrote: >> >> >> >> >Thanks for your reply. >> >> > >> >> > >> >> > >> >> >Actually I am following the official guide to start solr using (on >> Windows >> >> >machines) >> >> > >> >> > >> >> > >> >> >bin/solr start -e cloud -z zk1:2181,zk2:2182,zk3:2183 >> >> > >> >> >(it is listed here >> >> > >> >> >> https://cwiki.apache.org/confluence/display/solr/Setting+Up+an+External+ZooKeeper+Ensemble >> >> >) >> >> > >> >> > >> >> > >> >> >However, I am facing 2 issues >> >> > >> >> > >> >> > >> >> >1) If I specify the full list of ensemble (even with quotes around -z >> >> >"zk1:2181,zk2:2182,zk3:2183") it does not start Solr on port 8983 >> >> > >> >> > >> >> > >> >> > >> >> > >> >> >2) Then I tried the workaround, which is specifying "localhost" on each >> >> >Solr server to consult its local Zookeeper instance that is part of the >> >> >ensemble, which worked as follows >> >> > >> >> > >> >> > >> >> >bin/solr start -e cloud -z localhost:2181(on each machine that has >> >> >zookeeper as well) >> >> > >> >> > >> >> > >> >> >I followed the wizard (on each machine) to create 2 shards on 2 ports >> and >> >> 2 >> >> >replicas. For the first machine I created "test" collection, but for >> the >> >> >second one I just reused the same collection. Now, Solr works on both >> >> >machines but the issue is that when I see Solr admin page, it shows all >> >> the >> >> >shards and replicas of the collection on ONE MACHINE. >> >> > >> >> > >> >> >Any ideas why I am facing these issues? >> >> > >> >> > >> >> >Regards, >> >> > >> >> >Salman >> >> > >> >> >On Sun, Nov 29, 2015 at 10:07 PM, Erick Erickson < >> erickerick...@gmail.com >> >> > >> >> >wrote: >> >> > >> >> >> 1> I'll pass.... >> >> >> >> >> >> 2a> yes. >> >> >> 2b> This should be automatic when you create the collection. You >> >> >> should specify numShards=2, replicationFactor=2 and >> >> >> maxShardsPerNode=2. Solr tries hard to distribute the shards and >> >> >> replicas on different machines. >> >> >> >> >> >> If you _really_ require exact placement, you can specify >> createNodeSet >> >> >> which will assign shards round-robin to the specified list or even >> >> >> EMPTY which will create no actual cores at all. In this latter case >> >> >> you could then use ADDREPLICA to place each shard and replica exactly >> >> >> where you want it to go. >> >> >> >> >> >> But I wouldn't bother first, just do what I outlined in 2b and it >> >> >> should be fine. >> >> >> >> >> >> Best, >> >> >> Erick >> >> >> >> >> >> On Sat, Nov 28, 2015 at 1:03 PM, Salman Ansari < >> salman.rah...@gmail.com >> >> > >> >> >> wrote: >> >> >> > I have started with one Zookeeper to test things and I have the >> >> following >> >> >> > questions >> >> >> > >> >> >> > 1) In my zoo.cfg I have defined >> >> >> > tickTime=4000 >> >> >> > dataDir=C:\\Solr\\Zookeeper\\zookeeper-3.4.6\\data >> >> >> > clientPort=2183 >> >> >> > >> >> >> > the strange thing is that it picks up dataDir and clientPort but >> >> always >> >> >> > keeps tickTime = 3000. Any idea why? >> >> >> > >> >> >> > 2) It is clear from the documentation how to create an ensemble of >> >> >> > Zookeepers on 3 machines but what I am not sure about is how to >> >> >> > a) Setup actual Solr on 2 machines (is it just installing >> Solr >> >> on >> >> >> > each server and then passing the same zookeeper ensemble)? >> >> >> > b) How to (using Solr Cloud) create 2 shards spread on 2 >> >> machines >> >> >> > with each machine having a replica of the other for high >> >> availability. So >> >> >> > server1 will have shard1 and replica2 and server2 will have shard2 >> and >> >> >> > replica1? >> >> >> > >> >> >> > Comments and feedback are appreciated. >> >> >> > >> >> >> > Regards, >> >> >> > Salman >> >> >> > >> >> >> > >> >> >> > On Fri, Nov 27, 2015 at 5:52 AM, Zheng Lin Edwin Yeo < >> >> >> edwinye...@gmail.com> >> >> >> > wrote: >> >> >> > >> >> >> >> Yes, the ZooKeeper is Windows compatible. >> >> >> >> >> >> >> >> You can follow the guide, just need to replace the Linux commands >> >> with >> >> >> the >> >> >> >> Windows commands and paths >> >> >> >> >> >> >> >> Regards, >> >> >> >> Edwin >> >> >> >> >> >> >> >> >> >> >> >> On 26 November 2015 at 20:56, Alessandro Benedetti < >> >> >> abenede...@apache.org> >> >> >> >> wrote: >> >> >> >> >> >> >> >> > I think it should be straightforward following the Solr wiki : >> >> >> >> > >> >> >> >> > >> >> >> >> > >> >> >> >> >> >> >> >> >> >> https://cwiki.apache.org/confluence/display/solr/Setting+Up+an+External+ZooKeeper+Ensemble >> >> >> >> > >> >> >> >> > I never played much in details with zookeeper ( never tried on a >> >> >> windows >> >> >> >> > machine), but I assume it is windows compatible ( I can see >> >> binaries >> >> >> >> .cmd ) >> >> >> >> > >> >> >> >> > Cheers >> >> >> >> > >> >> >> >> > On 26 November 2015 at 12:38, Salman Ansari < >> >> salman.rah...@gmail.com> >> >> >> >> > wrote: >> >> >> >> > >> >> >> >> > > Hi, >> >> >> >> > > >> >> >> >> > > I have seen the guide of setting up Solr on one machine as >> well >> >> as >> >> >> >> > setting >> >> >> >> > > it up on multiple machines on Liunx. Is there a good guide of >> >> how to >> >> >> >> > setup >> >> >> >> > > Solr on multiple machines on Windows Server with Zookeeper >> >> >> ensemble? My >> >> >> >> > > structure is as follows >> >> >> >> > > >> >> >> >> > > 1) 3 machines will have Zookeeper to create an ensemble >> >> >> >> > > 2) 2 of these machines will have Solr installed (with each >> >> having a >> >> >> >> > replica >> >> >> >> > > of other to provide high availability) >> >> >> >> > > >> >> >> >> > > Any link/article that provides such a guide? >> >> >> >> > > >> >> >> >> > > Regards, >> >> >> >> > > Salman >> >> >> >> > > >> >> >> >> > >> >> >> >> > >> >> >> >> > >> >> >> >> > -- >> >> >> >> > -------------------------- >> >> >> >> > >> >> >> >> > Benedetti Alessandro >> >> >> >> > Visiting card : http://about.me/alessandro_benedetti >> >> >> >> > >> >> >> >> > "Tyger, tyger burning bright >> >> >> >> > In the forests of the night, >> >> >> >> > What immortal hand or eye >> >> >> >> > Could frame thy fearful symmetry?" >> >> >> >> > >> >> >> >> > William Blake - Songs of Experience -1794 England >> >> >> >> > >> >> >> >> >> >> >> >> >> >> >> >> >>
