liuchang0520 commented on a change in pull request #6778:
URL: https://github.com/apache/incubator-pinot/pull/6778#discussion_r639256711
##########
File path:
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/realtime/PinotLLCRealtimeSegmentManager.java
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@@ -1214,4 +1273,112 @@ private int
getMaxNumPartitionsPerInstance(InstancePartitions instancePartitions
return (numPartitions + numInstancesPerReplicaGroup - 1) /
numInstancesPerReplicaGroup;
}
}
+
+ // Pre fetch the LLC segment without deep store copy.
+ public void prefetchLLCSegmentWithoutDeepStoreCopy(String tableNameWithType)
{
+ TableType tableType =
TableNameBuilder.getTableTypeFromTableName(tableNameWithType);
+ if (tableType == TableType.REALTIME) {
+ TableConfig tableConfig =
_helixResourceManager.getTableConfig(tableNameWithType);
+ if (tableConfig == null) {
+ LOGGER.warn("Failed to find table config for table: {}",
tableNameWithType);
+ return;
+ }
+
+ PartitionLevelStreamConfig streamConfig = new
PartitionLevelStreamConfig(tableConfig.getTableName(),
+ IngestionConfigUtils.getStreamConfigMap(tableConfig));
+ if (!streamConfig.hasLowLevelConsumerType()) {
+ return;
+ }
+
+ List<LLCRealtimeSegmentZKMetadata> segmentZKMetadataList =
ZKMetadataProvider.getLLCRealtimeSegmentZKMetadataListForTable(_propertyStore,
tableNameWithType);
Review comment:
@chenboat Added the filter based on creation time from LLC segment name.
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