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Unable to connect to YARN webapp UI in CDH 5.11.2

Unable to connect to YARN webapp UI in CDH 5.11.2

New Contributor

This CDH cluster has been install for months, and be used to backup logs.

Today I try to run flink on yarn, and want to open yarn web ui to check flink taskmanagers' state, i find 8088 port connect refuse.

This site can’t be reached
47.74.***.*** refused to connect.
Search Google for *** *** 8088

yarn port & address config as follows:


yarn.resourcemanager.address 8032
yarn.resourcemanager.scheduler.address 8030
yarn.resourcemanager.resource-tracker.address 8031
yarn.resourcemanager.admin.address 8033
yarn.resourcemanager.webapp.address 8088
yarn.resourcemanager.webapp.https.address 8090


Even curl 'http://ip:8088' on the resource manager host, also get "connection refuse"

[root@bigdata-cdh02 ~]# netstat -tunlp|grep 8088
tcp 0 0* LISTEN 20606/java

BTW, I check yarn logs, it seems that yarn has successfully allocated resources for flink.


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