Junfan Zhang created YARN-9746:
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Summary: Rm should only rewrite the jobConf passed by app when
supporting multi-cluster token renew
Key: YARN-9746
URL: https://issues.apache.org/jira/browse/YARN-9746
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Junfan Zhang
This issue links to YARN-5910.
When to support multi-cluster delegation token renew, the path of YARN-5910
works in most scenarios.
But when intergrating with Oozie, we encounter some problems. In Oozie having
multi delegation tokens including HDFS_DELEGATION_TOKEN(another cluster HA
token) and MR_DELEGATION_TOKEN(Oozie mr launcher token), to support renew
another cluster's token, YARN-5910 was patched and related config was set. The
config is as follows
{code:xml}
<property>
<name>mapreduce.job.send-token-conf</name>
<value>dfs.namenode.kerberos.principal|dfs.nameservices|^dfs.namenode.rpc-address.*$|^dfs.ha.namenodes.*$|^dfs.client.failover.proxy.provider.*$</value>
</property>
<property>
<name>dfs.nameservices</name>
<value>hadoop-clusterA-ns01,hadoop-clusterA-ns02,hadoop-clusterA-ns03,hadoop-clusterA-ns04,hadoop-clusterB-ns01,hadoop-clusterB-ns02,hadoop-clusterB-ns03,hadoop-clusterB-ns04</value>
</property>
<property>
<name>dfs.ha.namenodes.hadoop-clusterB-ns01</name>
<value>nn1,nn2</value>
</property>
<property>
<name>dfs.namenode.rpc-address.hadoop-clusterB-ns01.nn1</name>
<value>namenode01-clusterB.qiyi.hadoop:8020</value>
</property>
<property>
<name>dfs.namenode.rpc-address.hadoop-clusterB-ns01.nn2</name>
<value>namenode02-clusterB.qiyi.hadoop:8020</value>
</property>
<property>
<name>dfs.client.failover.proxy.provider.hadoop-clusterB-ns01</name>
<value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
</property>
{code}
However, the MR_DELEGATION_TOKEN could‘t be renewed, because of lacking some
config. Although we can set the required configurations through the app, this
is not a good idea. So i think rm should only rewrite the jobConf passed by app
to solve the above situation.
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