shuwenwei commented on code in PR #12744:
URL: https://github.com/apache/iotdb/pull/12744#discussion_r1680787639
##########
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/compaction/selector/estimator/FastCompactionInnerCompactionEstimator.java:
##########
@@ -76,4 +83,18 @@ public long calculatingDataMemoryCost(CompactionTaskInfo
taskInfo) throws IOExce
+ maxConcurrentChunkSizeFromSourceFile
+ taskInfo.getModificationFileSize();
}
+
+ @Override
+ public long roughEstimateInnerCompactionMemory(List<TsFileResource>
resources)
+ throws IOException {
+ int maxConcurrentSeriesNum =
+ Math.max(
+ config.getCompactionMaxAlignedSeriesNumInOneBatch(),
config.getSubCompactionTaskNum());
+ long maxChunkSize = config.getTargetChunkSize();
+ long maxPageSize = tsFileConfig.getPageSizeInByte();
+ int maxOverlapFileNum =
calculatingMaxOverlapFileNumInSubCompactionTask(resources);
+ // source files (chunk + uncompressed page) * overlap file num
+ // target file (chunk + unsealed page writer)
+ return (maxOverlapFileNum + 1) * maxConcurrentSeriesNum * (maxChunkSize +
maxPageSize);
Review Comment:
Unsequence inner space compaction have overlapping files
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