Flink本地模式启动时Task Managers启动失败

最新推荐文章于 2025-09-23 10:17:14 发布

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本文详细介绍了在使用Flink 1.7.2版本时遇到的集群启动失败问题，原因是虚拟机创建时使用的主机名与host文件中未正确映射。通过修改host文件并重新启动集群，成功解决了启动问题。

环境：

修改前

启动命令：/usr/local/src/flink-1.7.2

启动信息：Starting cluster.

Starting standalonesession daemon on host basic.
Starting taskexecutor daemon on host basic.
终止命令：./bin/stop-cluster.sh

终止信息：

No taskexecutor daemon (pid: 3589) is running anymore on basic.
No standalonesession daemon (pid: 3153) is running anymore on basic.

修改前页面信息：

http://192.168.159.13:8081/#/overview

原因分析：

因为虚拟机创建时使用的主机名为 basic，但是未在host文件中指定映射，故找不到对应的主机信息，无法启动

报错信息如下：

修改host文件：vim /etc/hosts

关闭集群重新启动即可：

[root@basic flink-1.7.2]# ./bin/stop-cluster.sh
No taskexecutor daemon (pid: 7822) is running anymore on basic.
No standalonesession daemon (pid: 7371) is running anymore on basic.

Starting cluster.
[INFO] 1 instance(s) of standalonesession are already running on basic.
Starting standalonesession daemon on host basic.
Starting taskexecutor daemon on host basic.
启动成功后界面如下：

[INFO] 1 instance(s) of standalonesession are already running on basic.
Starting standalonesession daemon on host basic.
Starting taskexecutor daemon on host basic.