gianm commented on code in PR #18777:
URL: https://github.com/apache/druid/pull/18777#discussion_r2562155972
##########
processing/src/main/java/org/apache/druid/timeline/partition/PartitionHolder.java:
##########
@@ -41,42 +45,44 @@ public static <T extends Overshadowable<T>>
PartitionHolder<T> copyWithOnlyVisib
)
{
return new PartitionHolder<>(
-
OvershadowableManager.copyVisible(partitionHolder.overshadowableManager),
+ partitionHolder.contents.copyVisible(),
partitionHolder.maxMinorVersion
);
}
public static <T extends Overshadowable<T>> PartitionHolder<T>
deepCopy(PartitionHolder<T> partitionHolder)
{
return new PartitionHolder<>(
- OvershadowableManager.deepCopy(partitionHolder.overshadowableManager),
+ partitionHolder.contents.deepCopy(),
partitionHolder.maxMinorVersion
);
}
public PartitionHolder(PartitionChunk<T> initialChunk)
{
- this.overshadowableManager = new OvershadowableManager<>();
add(initialChunk);
}
public PartitionHolder(List<PartitionChunk<T>> initialChunks)
{
- this.overshadowableManager = new OvershadowableManager<>();
for (PartitionChunk<T> chunk : initialChunks) {
add(chunk);
}
}
- protected PartitionHolder(OvershadowableManager<T> overshadowableManager,
short maxMinorVersion)
+ protected PartitionHolder(PartitionHolderContents<T> contents, short
maxMinorVersion)
{
- this.overshadowableManager = overshadowableManager;
+ this.contents = contents;
this.maxMinorVersion = maxMinorVersion;
}
public boolean add(PartitionChunk<T> chunk)
{
- boolean added = overshadowableManager.addChunk(chunk);
+ if (chunk.getObject().getMinorVersion() != 0 && contents instanceof
SimplePartitionHolderContents) {
+ // Swap simple map for an OvershadowableManager when minor versions are
encountered.
+ contents =
OvershadowableManager.fromSimple((SimplePartitionHolderContents<T>) contents);
Review Comment:
I think so, since timelines are created and populated as part of various
operations. It would get logged semi-randomly and perhaps too frequently.
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