+1 I applied the patch to branch-0.23. It compiles just fine. I built a distribution tar, deployed it to a 4-node cluster, and ran some smoke tests with HA enabled. All seemed good.
I also ran the following unit tests, which should exercise the relevant HA code: TestOfflineEditsViewer,TestHDFSConcat,TestEditLogRace,TestNameEditsConfigs,TestSaveNamespace,TestEditLogFileOutputStream,TestFileJournalManager,TestCheckpoint,TestEditLog,TestFSEditLogLoader,TestFsLimits,TestSecurityTokenEditLog,TestStorageRestore,TestBackupNode,TestEditLogJournalFailures,TestEditLogTailer,TestEditLogsDuringFailover,TestFailureToReadEdits,TestHASafeMode,TestHAStateTransitions,TestFailureOfSharedDir,TestDNFencing,TestStandbyIsHot,TestGenericJournalConf,TestCheckPointForSecurityTokens,TestNNStorageRetentionManager,TestPersistBlocks,TestPBHelper,TestNNLeaseRecovery Of these, they all passed except for TestOfflineEditsViewer and TestPersistBlocks. These failed because the patch obviously doesn't include changes to a few binary files which the tests rely on. Assuming that when you merge to branch-0.23 you do an actual svn merge, and don't just apply the patch, then these won't be a problem. -- Aaron T. Myers Software Engineer, Cloudera On Wed, Mar 7, 2012 at 9:26 PM, Suresh Srinivas <sur...@hortonworks.com>wrote: > I have merged the change required for merging Namenode HA. I have also > attached a release 23 patch in the jira HDFS-1623. Please take a look the > attached patch and let me know if that looks good. > > Regards, > Suresh >
