我安装了apache flink，转到flink-1.14.3文件夹并运行.bin/start-cluster.sh。
它似乎已成功启动群集，因为它输出以下内容-
Starting cluster.
Starting standalonesession daemon on host MacBook.local.
Starting taskexecutor daemon on host MacBook.local.我如何知道Flink正在哪个端口上运行？我在浏览器中转到http：//localhost：8081/，但那里什么都没有。
2条答案
按热度按时间rnmwe5a21#
根据https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/try-flink/local_installation/，您应该能够在http：//localhost：8081/上访问它
hs1ihplo2#
The port of the WebUI is specified in
conf/flink-conf.yamlwith the optionrest.port. As the official documentation says, the default value of the port is8081. If the port has already been used by other applications, you could specify another one inconf/flink-conf.yaml.If you wish to find which application is listening to
8081, you could refer to these answers:Who is listening on a given TCP port on Mac OS X?https://unix.stackexchange.com/questions/106561/finding-the-pid-of-the-process-using-a-specific-port
If there's no applications using the port
8081and you cannot access the WebUI vialocalhost:8081, maybe it's because Flink itself is not running normally. For the local installation of Flink, you could check log files located at thelogfolder and find out what happened.