how can I check memory usage on specific topic's partitions in kafka? I tried this one "kafka-log-dirs.sh --describe...", but I'm not sure what output means:
"partition": "simpleTopic-8",
"size": 2752037376,
"offsetLag": 0,
"isFuture": false
What "size" means here? Is it a total memory to use on specific partition or memory usage? I'm asking, because I set config "retention.bytes=2147483648" to this topic, so if "size" is just memory usage, my retention does not work.