[Broker, Functions, Websocket] Disable memory limit controller in internal Pulsar clients#15752
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…ernal Pulsar clients
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…ernal Pulsar clients (apache#15752) (cherry picked from commit ec52320) (cherry picked from commit a85fdce)
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Motivation
There's a performance regression with the memory limit change "PIP-120: Enable client memory limit by default", #13306 . PR was #13344 .
It's better to default to the previous setting of disabling memory limits for internal Pulsar clients so that the performance profile doesn't change because of the memory limit.
Modifications
Set
.memoryLimit(0, SizeUnit.BYTES)for PulsarClient builders of the internal Pulsar clients.Additional context
#15723 restores the default
maxPendingMessages&maxPendingMessagesAcrossPartitionslimits for producers to the defaults used before PIP-120 changes when the memory limit is disabled. That might be necessary in some cases for restoring the pre-PIP-120 behavior. It also disables the memory limit for the broker client and replication clients.#15748 handles disabling memory limits for CLI tools such as pulsar-perf.