ankitsultana commented on code in PR #15760:
URL: https://github.com/apache/pinot/pull/15760#discussion_r2082639020
##########
pinot-query-planner/src/main/java/org/apache/pinot/query/planner/physical/v2/opt/rules/LeafStageWorkerAssignmentRule.java:
##########
@@ -326,6 +340,56 @@ static TableScanWorkerAssignmentResult
attemptPartitionedDistribution(String tab
return new TableScanWorkerAssignmentResult(dataDistribution,
workerIdToSegmentsMap);
}
+ /**
+ * Infers partition from invalid segments if the passed flag is set to true.
+ */
+ @VisibleForTesting
+ static Map<Integer, List<String>>
getInvalidSegmentsByInferredPartition(@Nullable List<String> invalidSegments,
+ boolean inferPartitionsForInvalidSegments, String tableNameWithType) {
+ if (CollectionUtils.isEmpty(invalidSegments)) {
+ return Map.of();
+ } else if
(!Objects.equals(TableNameBuilder.getTableTypeFromTableName(tableNameWithType),
TableType.REALTIME)
+ || !inferPartitionsForInvalidSegments) {
+ throw new IllegalStateException(String.format("Table %s has %s segments
with invalid partition info. Will "
+ + "assume un-partitioned distribution. Sampled: %s",
tableNameWithType, invalidSegments.size(),
+ sampleSegmentsForLogging(invalidSegments)));
+ }
+ Map<Integer, List<String>> invalidSegmentsByInferredPartition = new
HashMap<>();
+ for (String invalidPartitionSegment : invalidSegments) {
+ int partitionId = -1;
+ if (LLCSegmentName.isLLCSegment(invalidPartitionSegment)) {
+ LLCSegmentName llcSegmentName =
LLCSegmentName.of(invalidPartitionSegment);
+ if (llcSegmentName != null) {
+ partitionId = llcSegmentName.getPartitionGroupId();
+ }
+ } else if
(UploadedRealtimeSegmentName.isUploadedRealtimeSegmentName(invalidPartitionSegment))
{
+ UploadedRealtimeSegmentName uploadedRealtimeSegmentName =
UploadedRealtimeSegmentName.of(
+ invalidPartitionSegment);
+ if (uploadedRealtimeSegmentName != null) {
+ partitionId = uploadedRealtimeSegmentName.getPartitionId();
+ }
+ }
+ if (partitionId == -1) {
+ throw new IllegalStateException(String.format("Could not infer
partition for segment: %s. Falling back to "
+ + "un-partitioned distribution", invalidPartitionSegment));
+ }
+ invalidSegmentsByInferredPartition.computeIfAbsent(partitionId, (x) ->
new ArrayList<>()).add(
+ invalidPartitionSegment);
+ }
+ LOGGER.info("Realtime Table {} has {} segments with invalid partition
info. Assuming partitionId from stream "
+ + "partition ID. Sampled segments: {}", tableNameWithType,
invalidSegments,
+ sampleSegmentsForLogging(invalidSegments));
Review Comment:
good catch. addressed
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