haibow commented on a change in pull request #4954: Support schema evolution
for consuming segments
URL: https://github.com/apache/incubator-pinot/pull/4954#discussion_r369820290
##########
File path:
pinot-server/src/main/java/org/apache/pinot/server/starter/helix/HelixInstanceDataManager.java
##########
@@ -194,7 +198,17 @@ private void reloadSegment(String tableNameWithType,
SegmentMetadata segmentMeta
File indexDir = segmentMetadata.getIndexDir();
if (indexDir == null) {
- LOGGER.info("Skip reloading REALTIME consuming segment: {} in table:
{}", segmentName, tableNameWithType);
+ if (!_instanceDataManagerConfig.shouldReloadConsumingSegment()) {
+ LOGGER.info("Skip reloading REALTIME consuming segment: {} in table:
{}", segmentName, tableNameWithType);
+ return;
+ }
+ LOGGER.info("Try reloading REALTIME consuming segment: {} in table: {}",
segmentName, tableNameWithType);
+ SegmentMetadataImpl segmentMetadataImpl = (SegmentMetadataImpl)
segmentMetadata;
Review comment:
Removed defaultColumnActionMap from the signature. Multiple calls to the
same consuming segment is covered. It will always compare the new schema with
the original schema (when the segment started consuming), and add the new
columns to the new columns map.
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