shuwenwei commented on code in PR #15257:
URL: https://github.com/apache/iotdb/pull/15257#discussion_r2050437273
##########
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/compaction/selector/estimator/AbstractCompactionEstimator.java:
##########
@@ -99,31 +131,37 @@ private FileInfo getFileInfoFromCache(TsFileResource
resource) throws IOExceptio
if (fileInfoCache.containsKey(resource)) {
return fileInfoCache.get(resource);
}
- File file = new File(resource.getTsFilePath());
+ TsFileID tsFileID = resource.getTsFileID();
synchronized (globalFileInfoCacheForFailedCompaction) {
- if (globalFileInfoCacheForFailedCompaction.containsKey(file)) {
- FileInfo fileInfo = globalFileInfoCacheForFailedCompaction.get(file);
+ FileInfo fileInfo = globalFileInfoCacheForFailedCompaction.get(tsFileID);
+ if (fileInfo != null) {
fileInfoCache.put(resource, fileInfo);
return fileInfo;
}
Review Comment:
No, because this extra fileInfoCache is only used temporarily within a task
selection.
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