xiangfu0 commented on code in PR #19331:
URL: https://github.com/apache/pinot/pull/19331#discussion_r4215033033
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/startree/v2/builder/MultipleTreesBuilder.java:
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@@ -222,6 +222,19 @@ public void build()
_buildMode);
File starTreeV2IndexFile = new File(_segmentDirectory,
StarTreeV2Constants.INDEX_FILE_NAME);
+ // When _separator is null, metadata has no star-tree, so any leftover
files on disk are orphaned
+ // (e.g. from a previous build killed before the metadata save). Delete
them so the combiner opens.
+ if (_separator == null) {
+ File starTreeV2IndexMapFile = new File(_segmentDirectory,
StarTreeV2Constants.INDEX_MAP_FILE_NAME);
+ File existingSeparatorDir = new File(_segmentDirectory,
StarTreeV2Constants.EXISTING_STAR_TREE_TEMP_DIR);
+ if (starTreeV2IndexFile.exists() || starTreeV2IndexMapFile.exists() ||
existingSeparatorDir.exists()) {
Review Comment:
test
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