David Ayres created HDDS-8749:
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Summary: [Hadoop OFS] HDFS commands fail when not set as the
leader of OMHA
Key: HDDS-8749
URL: https://issues.apache.org/jira/browse/HDDS-8749
Project: Apache Ozone
Issue Type: Bug
Components: OFS, OM HA
Affects Versions: 1.3.0
Environment: OS: Red Hat 8
Reporter: David Ayres
When setting the defaultFS in Hadoop's core-site.xml it seems you are only
allowed to declare one OM node, but if the node declared is not the leader it
fails with the following error:
INFO retry.RetryInvocationHandler: com.google.protobuf.ServiceException:
org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ozone.om.exceptions.OMNotLeaderException):
OM:om1 is not the leader. Could not determine the leader node.
, while invoking $Proxy13.submitRequest over
nodeId=null,nodeAddress=ddl07oom01.vuhl.root.mrc.local:9862 after 1 failover
attempts. Trying to failover after sleeping for 4000ms. Current retry count: 1.
HDFS commands only work when declaring the leader, but that would defeat the
purpose of HA. As if the OM node were to fail over HDFS commands would cease to
work.
There also does not seem to be any documentation on how HA works with OFS/O3FS
as of yet and I am not sure if this is a feature in the works or not.
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