Apache Solr Reference Guide Covering Apache Solr 6.0

Finally, create your myid files in each of the dataDir directories so that each server knows which instance it is.
The id in the myid file on each machine must match the "server.X" definition. So, the ZooKeeper instance (or
machine) named "server.1" in the above example, must have a myid file containing the value "1". The myid file
can be any integer between 1 and 255, and must match the server IDs assigned in the zoo.cfg file.
To start the servers, you can simply explicitly reference the configuration files:
cd
bin/zkServer.sh start zoo.cfg
bin/zkServer.sh start zoo2.cfg
bin/zkServer.sh start zoo3.cfg
Once these servers are running, you can reference them from Solr just as you did before:
bin/solr start -e cloud -z localhost:2181,localhost:2182,localhost:2183 -noprompt
For more information on getting the most power from your ZooKeeper installation, check out the ZooKeeper
Administrator's Guide.
Securing the ZooKeeper connection
You may also want to secure the communication between ZooKeeper and Solr.
To setup ACL protection of znodes, see ZooKeeper Access Control.
Using ZooKeeper to Manage Configuration Files
With SolrCloud your configuration files are kept in ZooKeeper. These files are uploaded in either of the following
cases:
When you start a SolrCloud example using the bin/solr script.
When you create a collection using the bin/solr script.
Explicitly upload a configuration set to ZooKeeper.
Startup Bootstrap
When you try SolrCloud for the first time using the bin/solr -e cloud, the related configset gets uploaded to
zookeeper automatically and is linked with the newly created collection.
The below command would start SolrCloud with the default collection name (gettingstarted) and default configset
(data_driven_schema_configs) uploaded and linked to it.
$ bin/solr -e cloud -noprompt
You can also explicitly upload a configuration directory when creating a collection using the bin/solr
script with the -d option, such as:
$ bin/solr create -c mycollection -d data_driven_schema_configs
The create command will upload a copy of the data_driven_schema_configs configuration directory to
ZooKeeper under /configs/mycollection. Refer to the Solr Start Script Reference page for more details
about the create command for creating collections.
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