Creating a Solr Collection

If you have enabled Ranger for authorization, you must have Solr Admin permission to be able to create collections.

If you are using Kerberos, kinit as a user with permission to create the collection:
```
kinit solradmin@EXAMPLE.COM
```
Replace EXAMPLE.COM with your Kerberos realm name.
On a host running a Solr server, make sure that the SOLR_ZK_ENSEMBLE environment variable is set in /etc/solr/conf/solr-env.sh. For example:
```
cat /etc/solr/conf/solr-env.sh
export SOLR_ZK_ENSEMBLE=zk01.example.com:2181,zk02.example.com:2181,zk03.example.com:2181/solr
```
If you are using Cloudera Manager, this is automatically set on hosts with a Solr Server or Gateway role.

Generate configuration files for the collection:

Using Configs:

solrctl config --create logs_config managedTemplate -p immutable=false

Using Instance Directories:

solrctl instancedir --generate $HOME/logs_config
# Edit the configuration files as needed
solrctl instancedir --create logs_config $HOME/logs_config

For more information on configs and instance directories, see Managing Configuration Using Configs or Instance Directories.

Create a new collection using the specified configuration:

solrctl collection --create logs -s <numShards> -c logs_config