Change memory allocation again

Author: Abacn

.test-infra/dataproc/flink_cluster.sh

@@ -68,9 +68,10 @@ FLINK_LOCAL_PORT=8081
 # By default each taskmanager has one slot - use that value to avoid sharing SDK Harness by multiple tasks.
 FLINK_TASKMANAGER_SLOTS="${FLINK_TASKMANAGER_SLOTS:=1}"
 
-# Crucial config for Fn API gRPC buffer stability and memory allocation
+# Config for Fn API gRPC buffer stability and memory allocation
 FLINK_PROPS="flink:taskmanager.memory.task.off-heap.size=256m"
-FLINK_PROPS+=",flink:taskmanager.memory.process.size=1728m"
+FLINK_PROPS+=",flink:taskmanager.memory.process.size=2048m"
+FLINK_PROPS+=",flink:taskmanager.memory.managed.fraction=0.1"
 FLINK_PROPS+=",flink:jobmanager.memory.process.size=1600m"
 FLINK_PROPS+=",flink:taskmanager.numberOfTaskSlots=${FLINK_TASKMANAGER_SLOTS}"