J-HowHuang commented on code in PR #15110:
URL: https://github.com/apache/pinot/pull/15110#discussion_r1968611873
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/assignment/instance/InstanceAssignmentDriver.java:
##########
@@ -54,41 +54,44 @@ public InstanceAssignmentDriver(TableConfig tableConfig) {
}
public InstancePartitions assignInstances(InstancePartitionsType
instancePartitionsType,
- List<InstanceConfig> instanceConfigs, @Nullable InstancePartitions
existingInstancePartitions) {
+ List<InstanceConfig> instanceConfigs, @Nullable InstancePartitions
existingInstancePartitions,
+ boolean forceMinimizeDataMovement) {
String tableNameWithType = _tableConfig.getTableName();
InstanceAssignmentConfig assignmentConfig =
InstanceAssignmentConfigUtils.getInstanceAssignmentConfig(_tableConfig,
instancePartitionsType);
return getInstancePartitions(
instancePartitionsType.getInstancePartitionsName(TableNameBuilder.extractRawTableName(tableNameWithType)),
- assignmentConfig, instanceConfigs, existingInstancePartitions, null);
+ assignmentConfig, instanceConfigs, existingInstancePartitions, null,
forceMinimizeDataMovement);
}
public InstancePartitions assignInstances(InstancePartitionsType
instancePartitionsType,
List<InstanceConfig> instanceConfigs, @Nullable InstancePartitions
existingInstancePartitions,
- @Nullable InstancePartitions preConfiguredInstancePartitions) {
+ @Nullable InstancePartitions preConfiguredInstancePartitions, boolean
forceMinimizeDataMovement) {
String tableNameWithType = _tableConfig.getTableName();
InstanceAssignmentConfig assignmentConfig =
InstanceAssignmentConfigUtils.getInstanceAssignmentConfig(_tableConfig,
instancePartitionsType);
return getInstancePartitions(
instancePartitionsType.getInstancePartitionsName(TableNameBuilder.extractRawTableName(tableNameWithType)),
- assignmentConfig, instanceConfigs, existingInstancePartitions,
preConfiguredInstancePartitions);
+ assignmentConfig, instanceConfigs, existingInstancePartitions,
preConfiguredInstancePartitions,
+ forceMinimizeDataMovement);
}
public InstancePartitions assignInstances(String tierName,
List<InstanceConfig> instanceConfigs,
- @Nullable InstancePartitions existingInstancePartitions,
InstanceAssignmentConfig instanceAssignmentConfig) {
+ @Nullable InstancePartitions existingInstancePartitions,
InstanceAssignmentConfig instanceAssignmentConfig,
+ boolean forceMinimizeDataMovement) {
return getInstancePartitions(
InstancePartitionsUtils.getInstancePartitionsNameForTier(_tableConfig.getTableName(),
tierName),
- instanceAssignmentConfig, instanceConfigs, existingInstancePartitions,
null);
+ instanceAssignmentConfig, instanceConfigs, existingInstancePartitions,
null, forceMinimizeDataMovement);
}
private InstancePartitions getInstancePartitions(String
instancePartitionsName,
InstanceAssignmentConfig instanceAssignmentConfig, List<InstanceConfig>
instanceConfigs,
@Nullable InstancePartitions existingInstancePartitions,
- @Nullable InstancePartitions preConfiguredInstancePartitions) {
+ @Nullable InstancePartitions preConfiguredInstancePartitions, boolean
forceMinimizeDataMovement) {
String tableNameWithType = _tableConfig.getTableName();
LOGGER.info("Starting {} instance assignment for table {}",
instancePartitionsName, tableNameWithType);
- boolean minimizeDataMovement =
instanceAssignmentConfig.isMinimizeDataMovement();
+ boolean minimizeDataMovement = forceMinimizeDataMovement ||
instanceAssignmentConfig.isMinimizeDataMovement();
Review Comment:
```java
public InstanceTagPoolSelector(InstanceTagPoolConfig tagPoolConfig, String
tableNameWithType,
boolean minimizeDataMovement, @Nullable InstancePartitions
existingInstancePartitions) {
...
_minimizeDataMovement = minimizeDataMovement &&
existingInstancePartitions != null;
_existingInstancePartitions = existingInstancePartitions;
}
```
It does the check in the constructor of `InstanceTagPoolSelector` so it
should not be a problem. Though need to document this to manifest the behavior
in the api docs, especially the case that `existingInstancePartitions` is set
to `null` when `bootstrap=true` in the rebalance api
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