Edward Capriolo created YARN-11915:
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Summary: In HA m
Key: YARN-11915
URL: https://issues.apache.org/jira/browse/YARN-11915
Project: Hadoop YARN
Issue Type: Bug
Reporter: Edward Capriolo
in YARN HA using SSL
Setting this:
{code:java}
<property>
<name>yarn.http.policy</name>
<value>HTTPS_ONLY</value>
</property> {code}
Effectively forces this in yarn-site.xml
{code:java}
<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>rm2:8088</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.https.address.rm2</name>
<value>rm2:8090</value>
</property> {code}
Otherwise when a user launches a wordcount the job is failed with this in the
syslog:
{code:java}
2$QuotingInputFilter) 2025-12-31 19:27:38,849 ERROR [main]
org.apache.hadoop.mapreduce.v2.app.client.MRClientService: Webapps failed to
start. Ignoring for now: java.lang.NullPointerException: Cannot invoke
"Object.toString()" because the return value of "java.util.Iterator.next()" is
null at org.apache.hadoop.util.StringUtils.join(StringUtils.java:1050)
at
org.apache.hadoop.yarn.server.webproxy.amfilter.AmFilterInitializer.initFilter(AmFilterInitializer.java:74)
at
org.apache.hadoop.http.HttpServer2.initializeWebServer(HttpServer2.java:802)
at org.apache.hadoop.http.HttpServer2.<init>(HttpServer2.java:737)
at org.apache.hadoop.http.HttpServer2.<init>(HttpServer2.java:136) at
org.apache.hadoop.http.HttpServer2$Builder.build(HttpServer2.java:504)
at org.apache.hadoop.yarn.webapp.WebApps$Builder.build(WebApps.java:384)
at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:468)
at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:464)
at
org.apache.hadoop.mapreduce.v2.app.client.MRClientService.serviceStart(MRClientService.java:152)
at
org.apache.hadoop.service.AbstractService.start(AbstractService.java:195)
at
org.apache.hadoop.mapreduce.v2.app.MRAppMaster.serviceStart(MRAppMaster.java:1289)
at
org.apache.hadoop.service.AbstractService.start(AbstractService.java:195)
--More-- (68% of 43669 bytes) {code}
Perhaps we can give a warning or find the default value. I had a feeling the
issue had to do with HA-RM but ultimately I had to look at the source code to
figure it out.
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