somandal commented on code in PR #17028:
URL: https://github.com/apache/pinot/pull/17028#discussion_r2467075586
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/startree/v2/builder/MultipleTreesBuilder.java:
##########
@@ -243,6 +269,28 @@ private static SingleTreeBuilder
getSingleTreeBuilder(StarTreeV2BuilderConfig bu
public void close() {
if (_separatorTempDir != null) {
try {
+ try {
+ if (_starTreeCreationFailed) {
+ LOGGER.error("Star-tree index creation failed, trying to reset the
older star-tree index and metadata");
+ FileUtils.moveFileToDirectory(new File(_separatorTempDir,
StarTreeV2Constants.INDEX_FILE_NAME),
+ _segmentDirectory,
+ false);
+ FileUtils.moveFileToDirectory(new File(_separatorTempDir,
StarTreeV2Constants.INDEX_MAP_FILE_NAME),
+ _segmentDirectory, false);
+
+ // Copy back the older star-tree related metadata
+ Iterator<String> keys = _existingStarTreeMetadata.getKeys();
+ while (keys.hasNext()) {
+ String key = keys.next();
+ Object value = _existingStarTreeMetadata.getProperty(key);
+ _metadataProperties.addProperty(MetadataKey.STAR_TREE_PREFIX +
key, value);
+ }
+ CommonsConfigurationUtils.saveToFile(_metadataProperties,
+ new File(_segmentDirectory,
V1Constants.MetadataKeys.METADATA_FILE_NAME));
+ }
+ } catch (Exception e) {
+ LOGGER.error("Could not reset the star-tree index state to the
previous one", e);
Review Comment:
done
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