[ https://issues.apache.org/jira/browse/HDFS-16038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ayush Saxena updated HDFS-16038: -------------------------------- Issue Type: Bug (was: New Feature) > DataNode Unrecognized Observer Node when cluster add an observer node > --------------------------------------------------------------------- > > Key: HDFS-16038 > URL: https://issues.apache.org/jira/browse/HDFS-16038 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: lei w > Priority: Critical > > When an Observer node is added to the cluster, the DataNode will not be able > to recognize the HAServiceState.observer, This is because we did not upgrade > the DataNode. Generally, it will take a long time for a big cluster to > upgrade the DataNode . So should we add a switch to replace the Observer > state with the Standby state when DataNode can not recognize the > HAServiceState.observer state? > The following are some error messages of DataNodeļ¼ > {code:java} > 11:14:31,812 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: > IOException in offerService > com.google.protobuf.InvalidProtocolBufferException: Message missing required > fields: haStatus.state > at > com.google.protobuf.UninitializedMessageException.asInvalidProtocolBufferException(UninitializedMessageException.java:81) > at > com.google.protobuf.AbstractParser.checkMessageInitialized(AbstractParser.java:71) > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org