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check the starter class here. There are many components in standalone. https://github.com/apache/pulsar/blob/e08841114cece7e4dc64677505ab66271a2bace5/pul[…]ar-broker/src/main/java/org/apache/pulsar/PulsarStandalone.java the only way in stanadlone is reduce the heap and maxdirectmemory (off heap). in your case, you don’t need a lot of heap and offheap memory.