java – how to fix Confluent Kafka Heap Size problem?

I edited every parameter about the confluent heap size but as you can see in the last line one of the proccess has 6GB of heap size, how to downgrade it and what is it for?

cp-kafk+ 1121 3.8 4.1 5830780 341268 ? Ssl 17:45 0:31 java -Xms256M -Xmx2G -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+ExplicitGCInvokesConcurrent -XX:MaxInlineLevel=15 -Djava.awt.headless=true -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/var/log/kafka -Dlog4j.configuration=file:/etc/kafka/connect-log4j.properties -cp /usr/share/java/kafka/:/usr/share/java/confluent-common/:/usr/share/java/kafka-serde-tools/:/usr/share/java/monitoring-interceptors/:/usr/bin/../share/java/kafka/:/usr/bin/../share/java/confluent-telemetry/ -javaagent:/opt/prometheus/jmx_prometheus_javaagent.jar=8077:/opt/prometheus/kafka_connect.yml org.apache.kafka.connect.cli.ConnectDistributed /etc/kafka/connect-distributed.properties

cp-kafka 1126 0.3 1.0 4739976 84828 ? Ssl 17:45 0:03 java -Xmx1g -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+ExplicitGCInvokesConcurrent -XX:MaxInlineLevel=15 -Djava.awt.headless=true -Xlog:gc*:file=/var/log/kafka/zookeeper-gc.log:time,tags:filecount=10,filesize=100M -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/var/log/kafka -Dlog4j.configuration=file:/etc/kafka/zookeeper-log4j.properties -cp /usr/bin/../share/java/kafka/:/usr/bin/../share/java/confluent-telemetry/ -javaagent:/opt/prometheus/jmx_prometheus_javaagent.jar=8079:/opt/prometheus/zookeeper.yml org.apache.zookeeper.server.quorum.QuorumPeerMain /etc/kafka/zookeeper.properties

cp-sche+ 2456 2.0 3.2 4736916 264080 ? Ssl 17:46 0:15 java -Xms1g -Xmx1g -XX:MetaspaceSize=96m -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:G1HeapRegionSize=16M -XX:MinMetaspaceFreeRatio=50 -XX:MaxMetaspaceFreeRatio=80 -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+ExplicitGCInvokesConcurrent -Djava.awt.headless=true -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dschema-registry.log.dir=/var/log/confluent/schema-registry -Dlog4j.configuration=file:/etc/schema-registry/log4j.properties -cp :/usr/bin/../package-schema-registry/target/kafka-schema-registry-package--development/share/java/schema-registry/:/usr/bin/../share/java/confluent-security/schema-registry/:/usr/bin/../share/java/schema-registry-plugins/:/usr/bin/../share/java/confluent-common/:/usr/bin/../share/java/confluent-telemetry/:/usr/bin/../share/java/rest-utils/:/usr/bin/../share/java/schema-registry/ -javaagent:/opt/prometheus/jmx_prometheus_javaagent.jar=8078:/opt/prometheus/schema_registry.yml io.confluent.kafka.schemaregistry.rest.SchemaRegistryMain /etc/schema-registry/schema-registry.properties

cp-kafka 2657 15.3 7.0 12331084 570984 ? Ssl 17:57 0:19 java -Xms6g -Xmx6g -XX:MetaspaceSize=96m -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:G1HeapRegionSize=16M -XX:MinMetaspaceFreeRatio=50 -XX:MaxMetaspaceFreeRatio=80 -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:+ExplicitGCInvokesConcurrent -XX:MaxInlineLevel=15 -Djava.awt.headless=true -Xlog:gc*:file=/var/log/kafka/kafkaServer-gc.log:time,tags:filecount=10,filesize=100M -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/var/log/kafka -Dlog4j.configuration=file:/etc/kafka/log4j.properties -cp /usr/bin/../share/java/kafka/:/usr/bin/../share/java/confluent-telemetry/ -javaagent:/opt/prometheus/jmx_prometheus_javaagent.jar=8080:/opt/prometheus/kafka.yml kafka.Kafka /etc/kafka/server.properties
root 2807 0.0 0.0 6608 2328 pts/3 S+ 17:59 0:00 grep –color=auto java