Elek, Marton created HDFS-11999:
-----------------------------------
Summary: Ozone: Clarify error message in case namenode is missing
Key: HDFS-11999
URL: https://issues.apache.org/jira/browse/HDFS-11999
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ozone
Affects Versions: HDFS-7240
Reporter: Elek, Marton
Assignee: Elek, Marton
Datanode is failing if namenode config setting is missing even for Ozone with a
confusing error message:
{code}
14:33:29.176 [main] ERROR o.a.h.hdfs.server.datanode.DataNode - Exception in
secureMain
java.io.IOException: No services to connect (NameNodes or SCM).
at
org.apache.hadoop.hdfs.server.datanode.BlockPoolManager.refreshNamenodes(BlockPoolManager.java:168)
~[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1440)
[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:510)
[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2802)
[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2705)
[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2752)
[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2896)
[classes/:na]
at
org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2920)
[classes/:na]
14:33:29.177 [main] INFO org.apache.hadoop.util.ExitUtil - Exiting with status
1: java.io.IOException: No services to connect (NameNodes or SCM).
{code}
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