Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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3.3.1
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None
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None
Description
RequestHedgingRMFailoverProxyProvider fails to connect to Active RM if standby host info is missing in /etc/hosts
2021-07-19 13:07:18,892 ERROR [Listener at 0.0.0.0/45951] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Error starting MRAppMaster
java.lang.IllegalArgumentException: java.net.UnknownHostException: resourcemanager-1.resourcemanager
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:466)
at org.apache.hadoop.yarn.client.ClientRMProxy.getTokenService(ClientRMProxy.java:154)
at org.apache.hadoop.yarn.client.ClientRMProxy.getAMRMTokenService(ClientRMProxy.java:139)
at org.apache.hadoop.yarn.client.ClientRMProxy.setAMRMTokenService(ClientRMProxy.java:81)
at org.apache.hadoop.yarn.client.ClientRMProxy.getRMAddress(ClientRMProxy.java:100)
at org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.getProxyInternal(ConfiguredRMFailoverProxyProvider.java:76)
at org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider.init(RequestHedgingRMFailoverProxyProvider.java:75)
at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:194)
at org.apache.hadoop.yarn.client.RMProxy.newProxyInstance(RMProxy.java:130)
at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:103)