ableegoldman commented on a change in pull request #11424:
URL: https://github.com/apache/kafka/pull/11424#discussion_r799253840



##########
File path: 
streams/src/main/java/org/apache/kafka/streams/processor/internals/namedtopology/TopologyConfig.java
##########
@@ -116,14 +123,30 @@ public TopologyConfig(final String topologyName, final 
StreamsConfig globalAppCo
             maxBufferedSize = getInt(BUFFERED_RECORDS_PER_PARTITION_CONFIG);
             log.info("Topology {} is overriding {} to {}", topologyName, 
BUFFERED_RECORDS_PER_PARTITION_CONFIG, maxBufferedSize);
         } else {
-            maxBufferedSize = 
globalAppConfigs.getInt(BUFFERED_RECORDS_PER_PARTITION_CONFIG);
+            maxBufferedSize = 
globalAppConfigs.originals().containsKey(StreamsConfig.BUFFERED_RECORDS_PER_PARTITION_CONFIG)
+                    ? 
globalAppConfigs.getInt(StreamsConfig.BUFFERED_RECORDS_PER_PARTITION_CONFIG) : 
-1;
         }
 
-        if (isTopologyOverride(CACHE_MAX_BYTES_BUFFERING_CONFIG, 
topologyOverrides)) {
-            cacheSize = getLong(CACHE_MAX_BYTES_BUFFERING_CONFIG);
-            log.info("Topology {} is overriding {} to {}", topologyName, 
CACHE_MAX_BYTES_BUFFERING_CONFIG, cacheSize);
+        if (isTopologyOverride(STATESTORE_CACHE_MAX_BYTES_CONFIG, 
topologyOverrides) ||
+                isTopologyOverride(CACHE_MAX_BYTES_BUFFERING_CONFIG, 
topologyOverrides)) {
+
+            if (isTopologyOverride(STATESTORE_CACHE_MAX_BYTES_CONFIG, 
topologyOverrides) && isTopologyOverride(CACHE_MAX_BYTES_BUFFERING_CONFIG, 
topologyOverrides)) {
+                cacheSize = getLong(STATESTORE_CACHE_MAX_BYTES_CONFIG);
+                log.info("Topology {} is using both {} and deprecated config 
{}. overriding {} to {}",
+                        topologyName,
+                        STATESTORE_CACHE_MAX_BYTES_CONFIG,
+                        CACHE_MAX_BYTES_BUFFERING_CONFIG,
+                        STATESTORE_CACHE_MAX_BYTES_CONFIG,
+                        cacheSize);
+            } else if (isTopologyOverride(CACHE_MAX_BYTES_BUFFERING_CONFIG, 
topologyOverrides)) {
+                cacheSize = getLong(CACHE_MAX_BYTES_BUFFERING_CONFIG);
+                log.info("Topology {} is using deprecated config {}. 
overriding {} to {}", topologyName, CACHE_MAX_BYTES_BUFFERING_CONFIG, 
CACHE_MAX_BYTES_BUFFERING_CONFIG, cacheSize);
+            } else {
+                cacheSize = getLong(STATESTORE_CACHE_MAX_BYTES_CONFIG);
+                log.info("Topology {} is overriding {} to {}", topologyName, 
STATESTORE_CACHE_MAX_BYTES_CONFIG, cacheSize);
+            }
         } else {
-            cacheSize = 
globalAppConfigs.getLong(CACHE_MAX_BYTES_BUFFERING_CONFIG);
+            cacheSize = 
globalAppConfigs.getLong(STATESTORE_CACHE_MAX_BYTES_CONFIG);

Review comment:
       Sounds good! There's no rush, but I'll make sure we have your new PRs 
reviewed and merged quickly whenever they are ready, since you've worked so 
hard on this already. I'm sorry I wasn't able to make another pass on your 
original PR, but hopefully this won't be too much of a bother.




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