clintropolis commented on a change in pull request #8870: Additional Kinesis
resharding fixes
URL: https://github.com/apache/incubator-druid/pull/8870#discussion_r351526438
##########
File path:
server/src/main/java/org/apache/druid/segment/realtime/appenderator/BaseAppenderatorDriver.java
##########
@@ -551,10 +551,19 @@ protected AppenderatorDriverAddResult append(
)
{
if (segmentsAndMetadata.getSegments().isEmpty()) {
- log.debug("Nothing to publish, skipping publish step.");
- final SettableFuture<SegmentsAndMetadata> retVal =
SettableFuture.create();
- retVal.set(segmentsAndMetadata);
- return retVal;
+ if (!publisher.supportsEmptyPublish()) {
+ log.info("Nothing to publish, skipping publish step.");
+ final SettableFuture<SegmentsAndMetadata> retVal =
SettableFuture.create();
+ retVal.set(segmentsAndMetadata);
+ return retVal;
+ } else {
+ if (appenderator.getTotalRowCount() != 0) {
Review comment:
could you leave a comment explaining the purpose of this check being in the
else case, and explain why it isn't always an error?
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