Jackie-Jiang commented on code in PR #15672:
URL: https://github.com/apache/pinot/pull/15672#discussion_r2070558978
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/index/loader/SegmentPreProcessor.java:
##########
@@ -130,7 +130,24 @@ public void process(@Nullable SegmentOperationsThrottler
segmentOperationsThrott
if (type != StandardIndexes.forward()) {
IndexHandler handler = createHandler(type);
indexHandlers.add(handler);
- handler.updateIndices(segmentWriter);
+ try {
+ handler.updateIndices(segmentWriter);
+ } catch (IllegalStateException | UnsupportedOperationException e) {
Review Comment:
IMO we don't want to differentiate the handling of different exceptions. We
are not strictly following a convention for exception type, e.g. why not
catching `IllegalArgumentException`? We should just use a flag to control
whether to continue on error to make the behavior more deterministic.
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/index/loader/SegmentPreProcessor.java:
##########
@@ -130,7 +130,24 @@ public void process(@Nullable SegmentOperationsThrottler
segmentOperationsThrott
if (type != StandardIndexes.forward()) {
IndexHandler handler = createHandler(type);
indexHandlers.add(handler);
- handler.updateIndices(segmentWriter);
+ try {
+ handler.updateIndices(segmentWriter);
+ } catch (IllegalStateException | UnsupportedOperationException e) {
+ // The index creation failure is expected in some cases, like when
the index is not supported for the
+ // column or segment type.
+ // E.g. non-dictionary encoded TIMESTAMP type doesn't support
range index, meanwhile dictionary encoded
Review Comment:
For this example, if we skip updating index, I believe query can fail during
query time, and it will be extremely hard to reason about.
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