Bitnami Kafka for Huawei Enterprise Cloud

Transcription

1 Bitnami Kafka for Huawei Enterprise Cloud Description Apache Kafka is publish-subscribe messaging rethought as a distributed commit log. How to start or stop the services? Each Bitnami stack includes a control script that lets you easily stop, start and restart services. The script is located at /opt/bitnami/ctlscript.sh. Call it without any service name arguments to start all services: sudo /opt/bitnami/ctlscript.sh start Or use it to restart a single service, such as Apache only, by passing the service name as argument: sudo /opt/bitnami/ctlscript.sh restart apache Use this script to stop all services: sudo /opt/bitnami/ctlscript.sh stop Restart the services by running the script without any arguments: sudo /opt/bitnami/ctlscript.sh restart Obtain a list of available services and operations by running the script without any arguments: sudo /opt/bitnami/ctlscript.sh How to upload files to the server with SFTP? NOTE: Bitnami applications can be found in /opt/bitnami/apps 华为保密信息, 未经授权禁止扩散第 1 页, 共 18 页

2 When uploading files via SFTP, you must have the server's IP address, username and password or, if you chose to deploy the server with an SSH key instead of a password, you must have the server username and corresponding SSH private key in.ppk format (for Windows) or in.pem format (for Linux and Mac OS X). To obtain the IP address for your server, follow these steps: Log in to the Huawei Cloud Server Console. Navigate to the "Computing -> Elastic Cloud Server" section. Note the public IP address for the server you wish to connect to. Once you have confirmed that you have the IP address and correct SSH credentials for your server, follow the instructions below depending on the platform you wish to use. Although you can use any SFTP/SCP client to transfer files to your server, this guide documents FileZilla (Windows, Linux and Mac OS X), WinSCP (Windows) and Cyberduck (Mac OS X). Using an SSH Key Once you have your server's SSH key, choose your preferred application and follow the steps below to connect to the server using SFTP. FileZilla IMPORTANT: To use FileZilla, your server private key should be in PPK format. Follow these steps: Download and install FileZilla 华为保密信息, 未经授权禁止扩散第 2 页, 共 18 页

3 Launch FileZilla and use the "Edit -> Settings" command to bring up FileZilla's configuration settings. Within the "Connection -> SFTP" section, use the "Add keyfile" command to select the private key file for the server. FileZilla will use this private key to log in to the server. Use the "File -> Site Manager -> New Site" command to bring up the FileZilla Site Manager, where you can set up a connection to your server. Enter your server host name and specify bitnami as the user name 华为保密信息, 未经授权禁止扩散第 3 页, 共 18 页

4 Select "SFTP" as the protocol and "Ask for password" as the logon type. Use the "Connect" button to connect to the server and begin an SFTP session. You might need to accept the server key, by clicking "Yes" or "OK" to proceed. You should now be logged into the /home/bitnami directory on the server. You can now transfer files by dragging and dropping them from the local server window to the remote server window. If you have problems accessing your server, get extra information by use the "Edit -> Settings -> Debug" menu to activate FileZilla's debug log 华为保密信息, 未经授权禁止扩散第 4 页, 共 18 页

5 WinSCP IMPORTANT: To use WinSCP, your server private key should be in PPK format. Follow these steps: Download and install WinSCP. Launch WinSCP and in the "Session" panel, select "SFTP" as the file protocol. Enter your server host name and specify bitnami as the user name 华为保密信息, 未经授权禁止扩散第 5 页, 共 18 页

6 Click the "Advanced " button and within the "SSH -> Authentication -> Authentication parameters" section, select the private key file for the server. WinSCP will use this private key to log in to the server. From the "Session" panel, use the "Login" button to connect to the server and begin an SCP session. You should now be logged into the /home/bitnami directory on the server. You can now transfer files by dragging and dropping them from the local server window to the remote server window. If you need to upload files to a location where the bitnami user doesn't have write permissions, you have two options: Once you have configured WinSCP as described above, click the "Advanced " button and within the "Environment -> Shell" panel, select sudo su - as your shell. This will allow you to upload files using the 华为保密信息, 未经授权禁止扩散第 6 页, 共 18 页

7 administrator account. Upload the files to the /home/bitnami directory as usual. Then, connect via SSH and move the files to the desired location with the sudo command, as shown below: sudo mv /home/bitnami/uploaded-file /path/to/desired/location/ Cyberduck IMPORTANT: To use Cyberduck, your server private key should be in PEM format. Follow these steps: 华为保密信息, 未经授权禁止扩散第 7 页, 共 18 页

8 Select the "Open Connection" command and specify "SFTP" as the connection protocol. In the connection details panel, under the "More Options" section, enable the "Use Public Key Authentication" option and specify the path to the private key file for the server. Use the "Connect" button to connect to the server and begin an SFTP session. You should now be logged into the /home/bitnami directory on the server. You can now transfer files by dragging and dropping them from the local server window to the remote server window 华为保密信息, 未经授权禁止扩散第 8 页, 共 18 页

9 Using a Password Once you have your server's SSH credentials, choose your preferred application and follow the steps below to connect to the server using SFTP. FileZilla Follow these steps: Download and install FileZilla. Launch FileZilla and use the "File -> Site Manager -> New Site" command to bring up the FileZilla Site Manager, where you can set up a connection to your server. Enter your server host name. Select "SFTP" as the protocol and "Ask for password" as the logon type. Use bitnami as the server username and the password generated during the server deployment process. Use the "Connect" button to connect to the server and begin an SFTP session. You might need to accept the server key, by clicking "Yes" or "OK" to proceed 华为保密信息, 未经授权禁止扩散第 9 页, 共 18 页

10 You should now be logged into the /home/bitnami directory on the server. You can now transfer files by dragging and dropping them from the local server window to the remote server window. If you have problems accessing your server, get extra information by use the "Edit -> Settings -> Debug" menu to activate FileZilla's debug log. WinSCP Follow these steps: Download and install WinSCP. Launch WinSCP and in the "Session" panel, select "SFTP" as the file protocol 华为保密信息, 未经授权禁止扩散第 10 页, 共 18 页

11 Enter your server host name and set bitnami as the server username. From the "Session" panel, use the "Login" button to connect to the server and begin an SCP session. Enter the password when prompted. You should now be logged into the /home/bitnami directory on the server. You can now transfer files by dragging and dropping them from the local server window to the remote server window. Cyberduck Follow these steps: 华为保密信息, 未经授权禁止扩散第 11 页, 共 18 页

12 Select the "Open Connection" command and specify "SFTP" as the connection protocol. In the connection details panel, enter the server IP address, bitnami as the username, and the password generated during the deployment process 华为保密信息, 未经授权禁止扩散第 12 页, 共 18 页

13 Use the "Connect" button to connect to the server and begin an SFTP session. You should now be logged into the /home/bitnami directory on the server. You can now transfer files by dragging and dropping them from the local server window to the remote server window. What is the default configuration? By default, the Zookeeper server runs on port 2181 and the Kafka server has a single broker running on port Only conections from localhost are permitted. How to connect to Kafka from a different machine? To connect to Kafka and Zookeeper from a different machine, you must open ports 9092 and 2181 for remote access. Refer to the FAQ for more information on this. Once you have added the firewall rule and opened the ports, perform these additional steps: Edit your Zookeeper configuration file (/opt/bitnami/zookeeper/conf/zoo.cfg) and comment out the following line: clientportaddress=localhost Edit your Kafka configuration file (/opt/bitnami/kafka/config/server.properties). If necessary, uncomment the following line and change the value of the parameter to the public IP address of the server: #advertised.host.name=<hostname routable by clients> Restart the server to reload the configuration files. sudo /opt/bitnami/ctlscript.sh restart 华为保密信息, 未经授权禁止扩散第 13 页, 共 18 页

14 How to run a Kafka producer and consumer from the server itself? You can run the following example to publish and collect your first message: Declare a new topic. The Kafka server is configured to use the server's public IP address: /opt/bitnami/kafka/bin/kafka-topics.sh --create --zookeeper : replication-factor 1 --partitions 1 --topic test We use replication-factor to indicate how many servers are going to have a copy of the logs, and partitions to choose the number of partitions for the topic we are creating. Start a new producer on the same Kafka server and generates a message in the topic. Remember to replace SERVER-IP with your server's public IP address. Enter CTRL-D to end the message. /opt/bitnami/kafka/bin/kafka-console-producer.sh --broker-list SERVE R-IP: topic test this is my first message Collect and display the first message in the consumer: /opt/bitnami/kafka/bin/kafka-console-consumer.sh --zookeeper : topic test --from-beginning How to create a Kafka multi-broker cluster? This section describes the creation of a multi-broker Kafka cluster with brokers located on different hosts. In this scenario: One server hosts the Zookeeper server and a Kafka broker The second server hosts a a second Kafka broker The third server hosts a producer and a consumer 华为保密信息, 未经授权禁止扩散第 14 页, 共 18 页

15 NOTE: Before beginning, ensure that ports 2181 (Zookeeper) and 9092 (Kafka) are open on the first server and port 9092 (Kafka) is open on the second server. Also ensure that remote connections are possible between the three servers (instructions). Configuring the first server (Zookeeper manager and Kafka broker) The default configuration may be used as is. However, you must perform the steps below: Delete the contents of the Zookeeper and Kafka temporary directories sudo rm -rf /opt/bitnami/kafka/tmp/kafka-logs sudo rm -rf /opt/bitnami/zookeeper/tmp/zookeeper Restart the Kafka and Zookeeper services. sudo /opt/bitnami/ctlscript.sh restart kafka sudo /opt/bitnami/ctlscript.sh restart zookeeper Configuring the second server (Kafka broker) Edit the /opt/bitnami/kafka/config/server.properties configuration file and update the broker.id parameter 华为保密信息, 未经授权禁止扩散第 15 页, 共 18 页

16 broker.id = 1 This broker id must be unique in the Kafka ecosystem. In the same file, update the zookeeper.connect parameter to reflect the public IP address of the first server. zookeeper.connect=public_ip_address_of_zookeeper_manager:2181 Delete the contents of the Zookeeper and Kafka temporary directories sudo rm -rf /opt/bitnami/kafka/tmp/kafka-logs sudo rm -rf /opt/bitnami/zookeeper/tmp/zookeeper Stop the Zookeeper service. sudo /opt/bitnami/ctlscript.sh stop zookeeper Restart the Kafka service. sudo /opt/bitnami/ctlscript.sh restart kafka Configuring the third server (Kafka message producer/consumer) Edit the /opt/bitnami/kafka/config/producer.properties file and update the metadata.broker.list parameter with the public IP addresses of the two brokers: metadata.broker.list=public_ip_address_of_first_kafka_broker:9092, PUBLIC_IP_ADDRESS_OF_SECOND_KAFKA_BROKER:9092 Edit the /opt/bitnami/kafka/config/consumer.properties file and update the zookeeper.connect parameter to reflect the public IP address of the first server. zookeeper.connect=public_ip_address_of_zookeeper_manager:2181 Since this host only serves as a producer and a consumer, stop the Kafka and Zookeeper services: 华为保密信息, 未经授权禁止扩散第 16 页, 共 18 页

17 sudo /opt/bitnami/ctlscript.sh stop kafka sudo /opt/bitnami/ctlscript.sh stop zookeeper Testing the cluster NOTE: The following commands should be executed on the third server (Kafka message producer/consumer). Create a new topic. /opt/bitnami/kafka/bin/kafka-topics.sh --create --zookeeper PUBLIC_I P_ADDRESS_OF_FIRST_KAFKA_BROKER: replication-factor 2 --partit ions 1 --topic multibroker Produce some messages by running the command below and then entering some messages, each on a separate line. Enter Ctrl-C to end. /opt/bitnami/kafka/bin/kafka-console-producer.sh --broker-list PUBLI C_IP_ADDRESS_OF_FIRST_KAFKA_BROKER: topic multibroker this is a message this is another message ^C Consume the messages. The consumer will connect to the cluster and retrieve and display the messages you entered in the previous step. /opt/bitnami/kafka/bin/kafka-console-consumer.sh --zookeeper PUBLIC_ IP_ADDRESS_OF_FIRST_KAFKA_BROKER: topic multibroker --from-beg inning this is a message this is another message ^C How to debug Kafka and Zookeeper errors? The main Kafka log file is created at /opt/bitnami/kafka/logs/server.log 华为保密信息, 未经授权禁止扩散第 17 页, 共 18 页

18 The main Zookeeper log file is created at /opt/bitnami/zookeeper/tmp/zookeeper.out 华为保密信息, 未经授权禁止扩散第 18 页, 共 18 页