Update KafkaQuickstart

doc/source/big-data/kafka/KafkaQuickstart.md

@@ -1,41 +1,42 @@
 # Kafka Quickstart
 ## 1.Download the code
-```
+```sh
 tar -xzf kafka_2.11-0.9.0.0.tgz
 ```
 
 ## 2.Start the server
-```
+```sh
 bin/zookeeper-server-start.sh config/zookeeper.properties
 ```
-```
+```sh
 bin/kafka-server-start.sh config/server.properties &
 ```
 
 ## 3.Create a topic
 创建名为test的topic，1个分区分别存放数据，数据备份总共1份：
-```
+```sh
 bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
 ```
 查看topic列表：
-```
+```sh
 bin/kafka-topics.sh --list --zookeeper localhost:2181
 ```
 
 ## 4.Send some messages
 kafka命令发送数据：
-```
+```sh
 bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test
 ```
 
 ## 5.Start a consumer
 kafka命令接收数据：
-```
+```sh
 bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning
+# bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
 ```
 
 ## 6.Setting up a multi-broker cluster
-```
+```sh
 cp config/server.properties config/server-1.properties
 cp config/server.properties config/server-2.properties
 ```
@@ -51,48 +52,48 @@ cp config/server.properties config/server-2.properties
     listeners=PLAINTEXT://:9094
     log.dirs=/tmp/kafka-logs-2
 ```
-```
+```sh
 bin/kafka-server-start.sh config/server-1.properties &
 bin/kafka-server-start.sh config/server-2.properties &
 ```
-```
+```sh
 bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 3 --partitions 1 --topic my-replicated-topic
 ```
-```
+```sh
 bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic my-replicated-topic
 bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic test
 ```
-```
+```sh
 bin/kafka-console-producer.sh --broker-list localhost:9092 --topic my-replicated-topic
 ```
-```
+```sh
 bin/kafka-console-consumer.sh --zookeeper localhost:2181 --from-beginning --topic my-replicated-topic
 ```
-```
+```sh
 ps aux | grep server-1.properties
 kill -9 7564
 ```
-```
+```sh
 bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic my-replicated-topic
 ```
-```
+```sh
 bin/kafka-console-consumer.sh --zookeeper localhost:2181 --from-beginning --topic my-replicated-topic
 ```
 
 ## 7.Use Kafka Connect to import/export data
-```
+```sh
 echo -e "foo\nbar" > test.txt
 ```
-```
+```sh
 bin/connect-standalone.sh config/connect-standalone.properties config/connect-file-source.properties config/connect-file-sink.properties
 ```
-```
+```sh
 cat test.sink.txt
 ```
-```
+```sh
 bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic connect-test --from-beginning
 ```
-```
+```sh
 echo "Another line" >> test.txt
 ```