Apache Solr Reference Guide Covering Apache Solr 6.0

lr.xml 's section to the name of a class (on the classpath) implementing the following interface:
package org.apache.solr.common.cloud;
public interface ZkCredentialsProvider {
public class ZkCredentials {
String scheme;
byte[] auth;
}
public ZkCredentials(String scheme, byte[] auth) {
super();
this.scheme = scheme;
this.auth = auth;
}
String getScheme() {
return scheme;
}
byte[] getAuth() {
return auth;
}
}
Collection getCredentials();
Solr determines which credentials to use by calling the getCredentials() method of the given credentials
provider. If no provider has been configured, the default implementation, DefaultZkCredentialsProvider is
used.
Out of the Box Implementations
You can always make you own implementation, but Solr comes with two implementations:
org.apache.solr.common.cloud.DefaultZkCredentialsProvider: Its getCredentials()
returns a list of length zero, or "no credentials used". This is the default and is used if you do not configure
a provider in solr.xml.
org.apache.solr.common.cloud.VMParamsSingleSetCredentialsDigestZkCredentialsPr
ovider: This lets you define your credentials using system properties. It supports at most one set of
credentials.
The schema is "digest". The username and password are defined by system properties "zkDiges
Controlling ACLs
tUsername" and " zkDigestPassword", respectively. This set of credentials will be added
to the list of credentials returned by getCredentials() if both username and password are
provided.
If the one set of credentials above is not added to the list, this implementation will fall back to
default behavior and use the (empty) credentials list from DefaultZkCredentialsProvider
.
You control which ACLs will be added by configuring zkACLProvider property in solr.xml 's
section to the name of a class (on the classpath) implementing the following interface:
package org.apache.solr.common.cloud;
public interface ZkACLProvider {
List getACLsToAdd(String zNodePath);
}
Apache Solr Reference Guide 6.0
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