Jackie-Jiang commented on a change in pull request #4047: Create
leadControllerResource in helix cluster
URL: https://github.com/apache/incubator-pinot/pull/4047#discussion_r289963896
##########
File path:
pinot-common/src/main/java/org/apache/pinot/common/utils/CommonConstants.java
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@@ -37,8 +37,15 @@
public static final String SERVER_INSTANCE_TYPE = "server";
public static final String BROKER_INSTANCE_TYPE = "broker";
+ public static final String CONTROLLER_INSTANCE_TYPE = "controller";
public static final String BROKER_RESOURCE_INSTANCE = "brokerResource";
+ public static final String LEAD_CONTROLLER_RESOURCE_NAME =
"leadControllerResource";
+
+ // More information on why these numbers are set can be found in the
following doc:
+ //
https://cwiki.apache.org/confluence/display/PINOT/Controller+Separation+between+Helix+and+Pinot
+ public static final int
DEFAULT_NUMBER_OF_PARTITIONS_IN_LEAD_CONTROLLER_RESOURCE = 17;
+ public static final int DEFAULT_NUMBER_OF_CONTROLLER_REPLICAS = 1;
Review comment:
Is this configurable? What is the behavior if I set this to 2?
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