[ https://issues.apache.org/jira/browse/HDFS-9426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Junping Du updated HDFS-9426: ----------------------------- Fix Version/s: 2.8.0 > Rollingupgrade finalization is not backward compatible > ------------------------------------------------------ > > Key: HDFS-9426 > URL: https://issues.apache.org/jira/browse/HDFS-9426 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Priority: Blocker > Fix For: 2.8.0, 2.7.2, 3.0.0-alpha1 > > Attachments: HDFS-9426.branch-2.7.poc.patch, HDFS-9426.trunk.poc.patch > > > After HDFS-7645, the namenode can return non-null {{rollingUpgradeInfo}} in > heatbeat reponses. 2.7.1 or 2.6.x datanodes won't finalize the upgrade > because it's not null. > NN might have to check the DN version and return different > {{rollingUpgradeInfo}}. > HDFS-8656 recognized the compatibility issue of the changed semantics, but > unfortunately did not address the semantics of the heartbeat response. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org