shuwenwei commented on code in PR #15257:
URL: https://github.com/apache/iotdb/pull/15257#discussion_r2050398932
##########
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/compaction/selector/estimator/CompactionEstimateUtils.java:
##########
@@ -81,6 +84,22 @@ public static FileInfo
calculateFileInfo(TsFileSequenceReader reader) throws IOE
for (Map.Entry<String, List<ChunkMetadata>>
measurementChunkMetadataList :
measurementChunkMetadataListMap.entrySet()) {
int currentChunkMetadataListSize =
measurementChunkMetadataList.getValue().size();
+ long chunkMetadataMemCost = 0;
+ for (ChunkMetadata chunkMetadata :
measurementChunkMetadataList.getValue()) {
+ if (chunkMetadata != null) {
+ chunkMetadataMemCost =
+ ChunkMetadata.calculateRamSize(
+ chunkMetadata.getMeasurementUid(),
chunkMetadata.getDataType());
+ break;
+ }
+ }
+ long currentSeriesRamSize = chunkMetadataMemCost *
currentChunkMetadataListSize;
Review Comment:
In fact, chunkMetadata here should not be null, the judgment here is just
for safety
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