I am using the following (Solr 7.3.1) successfully:
import java.util.Optional;
Optional<String> chrootOption = null;
if (StringUtils.isNotBlank(_zkChroot))
{
chrootOption = Optional.of(_zkChroot);
}
else
{
chrootOption = Optional.empty();
}
CloudSolrClient client = new CloudSolrClient.Builder(_zkHostList,
chrootOption).build();
Adapted from code I found somewhere (unit test?). Intent is to support the
option of configuring a chroot or not (stored in "_zkChroot")
- Andy -
On Mon, Jun 18, 2018 at 12:53 PM, THADC <timothy.clotworthy.j...@gmail.com>
wrote:
> Hello,
>
> I am using solr 7.3 and zookeeper 3.4.10. I have custom client code that is
> supposed to connect the a zookeeper cluster. For the sake of clarity, the
> main code focus:
>
>
> private synchronized void initSolrClient()
> {
> List<String> zookeeperList = new ArrayList<String>();
>
> zookeeperList.add("http://100.12.119.10:2281";);
> zookeeperList.add("http://100.12.119.10:2282";);
> zookeeperList.add("http://100.12.119.10:2283";);
>
> String collectionName = "myCollection"
>
> log.debug("in initSolrClient(), collectionName: " +
> collectionName);
>
> try {
> solrClient = new
> CloudSolrClient.Builder(zookeeperList,
> null).build();
>
> } catch (Exception e) {
> log.info("Exception creating solr client object.
> ");
> e.printStackTrace();
> }
> solrClient.setDefaultCollection(collectionName);
> }
>
> Before executing, I test that all three zoo nodes are running
> (./bin/zkServer.sh status zoo.cfg, ./bin/zkServer.sh status zoo2.cfg,
> ./bin/zkServer.sh status zoo3.cfg). The status shows the quorum is
> up and running, with one nodes as the leader and the other two as
> followers.
>
> When I execute my java client to connect to the zookeeper cluster, I get :
>
> java.lang.NullPointerException
> at
> org.apache.solr.client.solrj.impl.CloudSolrClient$Builder.<
> init>(CloudSolrClient.java:1387)
>
>
> I am assuming it has a problem with my null value for zkChroot, but not
> certain. Th API says zkChroot is the path to the root ZooKeeper node
> containing Solr data. May be empty if Solr-data is located at the ZooKeeper
> root.
>
> I am confused on what exactly should go here, and when it can be null. I
> cannot find any coding examples.
>
> Any help greatly appreciated.
>
>
>
>
> --
> Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
>
