saurabhd336 commented on code in PR #8663:
URL: https://github.com/apache/pinot/pull/8663#discussion_r877906733
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/realtime/PinotLLCRealtimeSegmentManager.java:
##########
@@ -1385,4 +1386,89 @@ public void uploadToDeepStoreIfMissing(TableConfig
tableConfig, List<SegmentZKMe
}
}
}
+
+ /**
+ * Creates PROPERTYSTORE and IDEALSTATE entries for each partitionGroup to
resume realtime table consumption
+ * @param tableName
+ */
+ public void resumeRealtimeTableConsumption(String tableName) {
+ TableConfig tableConfig = _helixResourceManager.getTableConfig(tableName,
TableType.REALTIME);
+ String realtimeTableName =
TableNameBuilder.REALTIME.tableNameWithType(tableName);
+
+ InstancePartitions instancePartitions =
+
InstancePartitionsUtils.fetchOrComputeInstancePartitions(_helixResourceManager.getHelixZkManager(),
tableConfig,
+ InstancePartitionsType.CONSUMING);
+ Map<InstancePartitionsType, InstancePartitions> instancePartitionsMap =
+ Collections.singletonMap(InstancePartitionsType.CONSUMING,
instancePartitions);
+ IdealState idealState =
+
HelixHelper.getTableIdealState(_helixResourceManager.getHelixZkManager(),
realtimeTableName);
+ int numReplicas = getNumReplicas(tableConfig, instancePartitions);
+ Map<String, Map<String, String>> instanceStatesMap =
idealState.getRecord().getMapFields();
+
+ PartitionLevelStreamConfig streamConfig = new
PartitionLevelStreamConfig(tableConfig.getTableName(),
+ IngestionConfigUtils.getStreamConfigMap(tableConfig));
+ List<PartitionGroupConsumptionStatus>
currentPartitionGroupConsumptionStatusList =
+ getPartitionGroupConsumptionStatusList(idealState, streamConfig);
+ // Read the smallest offset when a new partition is detected
+ OffsetCriteria originalOffsetCriteria = streamConfig.getOffsetCriteria();
+ streamConfig.setOffsetCriteria(OffsetCriteria.SMALLEST_OFFSET_CRITERIA);
+ List<PartitionGroupMetadata> newPartitionGroupMetadataList =
+ getNewPartitionGroupMetadataList(streamConfig,
currentPartitionGroupConsumptionStatusList);
+ streamConfig.setOffsetCriteria(originalOffsetCriteria);
+
+ int numPartitionGroups = newPartitionGroupMetadataList.size();
+ Map<Integer, SegmentZKMetadata> partitionToLatestSegment =
getLatestSegmentZKMetadataMap(realtimeTableName);
+ for (PartitionGroupMetadata partitionGroupMetadata :
newPartitionGroupMetadataList) {
+ int partitionId = partitionGroupMetadata.getPartitionGroupId();
+ if (partitionToLatestSegment.containsKey(partitionId)
+ &&
idealState.getInstanceStateMap(partitionToLatestSegment.get(partitionId).getSegmentName())
+ .containsValue(SegmentStateModel.CONSUMING)) {
+ // IN_PROGRESS segment already exists, NO-OP
+ LOGGER.info("Skipping partitionGroupId {}, IN_PROGRESS segment already
exists", partitionId);
+ } else {
+ // Step 1: Create PROPERTYSTORE nodes for each partitionId
(IN_PROGRESS)
+ String offset = partitionGroupMetadata.getStartOffset().toString();
+ long newSegmentCreationTimeMs = System.currentTimeMillis();
+
+ SegmentZKMetadata latestSegmentMeta =
partitionToLatestSegment.get(partitionId);
+ int seqNumber = latestSegmentMeta == null ? STARTING_SEQUENCE_NUMBER
+ : new
LLCSegmentName(latestSegmentMeta.getSegmentName()).getSequenceNumber() + 1;
+
+ LLCSegmentName newLLCSegment = new LLCSegmentName(tableName,
partitionId, seqNumber, newSegmentCreationTimeMs);
+ SegmentZKMetadata newSegmentZKMetadata = new
SegmentZKMetadata(newLLCSegment.getSegmentName());
+
newSegmentZKMetadata.setCreationTime(newLLCSegment.getCreationTimeMs());
+ newSegmentZKMetadata.setStartOffset(offset);
+ newSegmentZKMetadata.setNumReplicas(numReplicas);
+
newSegmentZKMetadata.setStatus(CommonConstants.Segment.Realtime.Status.IN_PROGRESS);
+ SegmentPartitionMetadata segmentPartitionMetadata =
+ getPartitionMetadataFromTableConfig(tableConfig, partitionId);
+ if (segmentPartitionMetadata != null) {
+ newSegmentZKMetadata.setPartitionMetadata(segmentPartitionMetadata);
+ }
+
+ FlushThresholdUpdater flushThresholdUpdater =
_flushThresholdUpdateManager
+ .getFlushThresholdUpdater(streamConfig);
+ CommittingSegmentDescriptor committingSegmentDescriptor = new
CommittingSegmentDescriptor(null, offset, 0);
+ flushThresholdUpdater.updateFlushThreshold(streamConfig,
+ newSegmentZKMetadata, committingSegmentDescriptor, null,
+ getMaxNumPartitionsPerInstance(instancePartitions,
numPartitionGroups, numReplicas),
+ newPartitionGroupMetadataList);
+
+ _helixResourceManager.getPropertyStore().set(
Review Comment:
I did not have full context on the periodic task execution via API. But now
I've updated the PR with
1) Allowing custom params to be passed to on demand task execution via helix
messages.
2) Changed the API to use the periodic task execution instead of directly
calling the method.
Please have a look @npawar @Jackie-Jiang @sajjad-moradi
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