# 4.Advanced

## 4.4.1 Overview

EFAK has very low requirements for server hardware. Only 1 core of CPU and 2GB of memory can run, and it supports the whole platform (Linux, macOS, Windows). At the same time, EFAK can manage multiple Kafka clusters (without installing a EFAK service for each Kafka cluster).

## 4.4.2 Advanced

### KSQL

Users can easily use KSQL, can quickly query the data in topic.

### Consumers

Through the Consumers module. Users can view the runtime of consumer programs intuitively, and analyze and judge the health of applications with more graphs.

### Bash

Manage and view EFAK process service status through `ke.sh` script \[command]\(3.Quick Start/6.Shell.md).

### JDK Encoding

When you deploy EFAK on the server where it is installed, the encode of the installed JDK is not UTF-8. When you use the mock feature of EFAK, you will get an exception when sending data in Unicode encoding format.

Then, You can run the following command:

```bash
ke.sh jdk
```

![jdk](/files/c0L5OOwys41ivW8DljvP)

### GC

You can also view the process of EFAK by executing gc command:

```bash
ke.sh gc
```

![ke\_gc](/files/Own7oi6oeuXnkze07OAZ)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.kafka-eagle.org/4.architecture/4.advanced.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.