klsince commented on code in PR #15822:
URL: https://github.com/apache/pinot/pull/15822#discussion_r2096418269
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/rebalance/TableRebalancer.java:
##########
@@ -1815,13 +1818,27 @@ public int fetch(String segmentName) {
_helixManager, _partitionColumn);
}
} else {
- // This how partitionId is calculated for CONSUMING segments in
RealtimeSegmentAssignment
- // TODO: Add handling for COMPLETED segments if in the future this
is allowed for StrictReplicaGroup and
- // the partitionId calculation differs from the CONSUMING
segments. For StrictRealtimeSegmentAssignment
- // the partitionId is mandated today. If this mandate is
maintained then there may be no need to add
- // special handling for COMPLETED segments after all
- partitionId =
SegmentAssignmentUtils.getRealtimeSegmentPartitionId(segmentName,
_tableNameWithType,
- _helixManager, _partitionColumn);
+ if (isConsuming ||
!_instancePartitionsMap.containsKey(InstancePartitionsType.COMPLETED)) {
+ // This how partitionId is calculated for CONSUMING segments and
ONLINE segments without COMPLETED
+ // instance partitions in RealtimeSegmentAssignment
+ partitionId =
SegmentAssignmentUtils.getRealtimeSegmentPartitionId(segmentName,
_tableNameWithType,
+ _helixManager, _partitionColumn);
+ } else {
+ // This is how partitionId is calculated for ONLINE segments when
COMPLETED instance partitions exist
+ // in RealtimeSegmentAssignment
+ InstancePartitions instancePartitions =
_instancePartitionsMap.get(InstancePartitionsType.COMPLETED);
+ assert instancePartitions != null;
+ if (_partitionColumn == null ||
instancePartitions.getNumPartitions() == 1) {
+ // Fallback to partitionId 0, in this case batching will not be
possible so we will fall back to a full
+ // rebalance without batching
+ partitionId = 0;
+ } else {
+ // This how partitionId is calculated for REALTIME tables if a
partition column exists and if the
Review Comment:
nit: This is ...
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/rebalance/TableRebalancer.java:
##########
@@ -1815,13 +1818,27 @@ public int fetch(String segmentName) {
_helixManager, _partitionColumn);
}
} else {
- // This how partitionId is calculated for CONSUMING segments in
RealtimeSegmentAssignment
- // TODO: Add handling for COMPLETED segments if in the future this
is allowed for StrictReplicaGroup and
- // the partitionId calculation differs from the CONSUMING
segments. For StrictRealtimeSegmentAssignment
- // the partitionId is mandated today. If this mandate is
maintained then there may be no need to add
- // special handling for COMPLETED segments after all
- partitionId =
SegmentAssignmentUtils.getRealtimeSegmentPartitionId(segmentName,
_tableNameWithType,
- _helixManager, _partitionColumn);
+ if (isConsuming ||
!_instancePartitionsMap.containsKey(InstancePartitionsType.COMPLETED)) {
+ // This how partitionId is calculated for CONSUMING segments and
ONLINE segments without COMPLETED
Review Comment:
nit: This is ...
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