| HDFS-5535 subtasks: | |
| HDFS-5496. Make replication queue initialization asynchronous. (Vinay via | |
| jing9) | |
| HDFS-5645. Support upgrade marker in editlog streams. (szetszwo) | |
| HDFS-5752. Add a new DFSAdmin command to query, start and finalize rolling | |
| upgrade. (szetszwo) | |
| HDFS-5786. Support QUERY and FINALIZE actions of rolling upgrade. (szetszwo) | |
| HDFS-5753. Add new Namenode startup options for downgrade and rollback using | |
| upgrade marker. (szetszwo) | |
| HDFS-5835. Add a new option for starting Namenode when rolling upgrade is | |
| in progress. (szetszwo) | |
| HDFS-5754. Split LayoutVerion into NameNodeLayoutVersion and | |
| DataNodeLayoutVersion. (Brandon Li via szetszwo) | |
| HDFS-5848. Add rolling upgrade status to heartbeat response. (szetszwo) | |
| HDFS-5890. Avoid NPE in Datanode heartbeat. (Vinay via brandonli) | |
| HDFS-5869. When starting rolling upgrade or NN restarts, NN should create | |
| a checkpoint right before the upgrade marker. (szetszwo) | |
| HDFS-5874. Should not compare DataNode current layout version with that of | |
| NameNode in DataStrorage. (brandonli) | |
| HDFS-5889. When starting rolling upgrade, create a fs image for rollback | |
| so that the standby namenode can create checkpoints during upgrade. | |
| (szetszwo & jing9) | |
| HDFS-5907. Add BlockPoolSliceStorage 'trash' to handle block deletions | |
| during rolling upgrades. (Arpit Agarwal) | |
| HDFS-5494. Merge Protobuf-based-FSImage code from trunk - fix build | |
| break after the merge. (Jing Zhao via Arpit Agarwal) | |
| HDFS-5585. Provide admin commands for data node upgrade (kihwal) | |
| HDFS-5920. Support rollback of rolling upgrade in NameNode and JournalNodes. | |
| (jing9) | |
| HDFS-5945. Add rolling upgrade information to fsimage; and disallow upgrade | |
| and rolling upgrade to be started simultaneously. (szetszwo & jing9) | |
| HDFS-5966. Fix rollback of rolling upgrade in NameNode HA setup. (jing9 | |
| via szetszwo) | |
| HDFS-5974. Fix compilation error, NameNodeLayoutVersion and | |
| DataNodeLayoutVersion after merge from trunk. (szetszwo) | |
| HDFS-5963. TestRollingUpgrade#testSecondaryNameNode causes subsequent | |
| tests to fail. (szetszwo via Arpit Agarwal) | |
| HDFS-5976. Create unit tests for downgrade and finalize rolling upgrade. | |
| (Haohui Mai via Arpit Agarwal) | |
| HDFS-5980. Rollback does not need to load edits. (jing9 via szetszwo) | |
| HDFS-5984. Fix TestEditLog and TestStandbyCheckpoints. (jing9 via szetszwo) | |
| HDFS-5985. SimulatedFSDataset#disableAndPurgeTrashStorage should not throw | |
| UnsupportedOperationException. (jing9 via kihwal) | |
| HDFS-5987. Fix findbugs warnings in Rolling Upgrade branch. (seztszwo via | |
| Arpit Agarwal) | |
| HDFS-5992. Fix NPE in MD5FileUtils and update editsStored for | |
| TestOfflineEditsViewer. (szetszwo) | |
| HDFS-5994. Fix TestDataNodeRollingUpgrade. (Arpit Agarwal via szetszwo) | |
| HDFS-5999. Do not create rollback fsimage when it already exists. (jing9) | |
| HDFS-6005. Simplify Datanode rollback and downgrade. (Suresh Srinivas via | |
| Arpit Agarwal) | |
| HDFS-6004. Change DFSAdmin for rolling upgrade commands. (szetszwo via | |
| Arpit Agarwal) | |
| HDFS-5583. Make DN send an OOB Ack on shutdown before restarting. (kihwal) | |
| HDFS-5778. Add rolling upgrade user document. (szetszwo) | |
| HDFS-6003. Add the new -rollingUpgrade startup option to the namenode | |
| usage message. (Vinayakumar B via szetszwo) | |
| HDFS-6014. Fix findbug warnings introduced by HDFS-5583. (kihwal) | |
| HDFS-6015. Fix TestBlockRecovery | |
| #testRaceBetweenReplicaRecoveryAndFinalizeBlock. (kihwal) | |
| HDFS-5924. Utilize OOB upgrade message processing for writes. (kihwal) | |
| HDFS-5498. Improve datanode startup time. (kihwal) | |
| HDFS-6000. Avoid saving namespace when starting rolling upgrade. (jing9) | |
| HDFS-6017. Query the status of rolling upgrade in the preparation stage in | |
| TestRollingUpgrade and TestRollingUpgradeRollback. (Haohui Mai via | |
| Arpit Agarwal) | |
| HDFS-6020. Fix the five findbugs warnings. (kihwal) | |
| HDFS-6019. Standby NN might not checkpoint when processing the rolling | |
| upgrade marker. (Haohui Mai via jing9) | |
| HDFS-6023. Test whether the standby NN continues to checkpoint after the | |
| prepare stage. (Haohui Mai via jing9) | |
| HDFS-6024. Test whether the NN will reject the downgrade if it has a | |
| fsimage from a newer release. (Haohui Mai via jing9) | |
| HDFS-6026. Fix TestDFSUpgrade and TestDataNodeRollingUpgrade. | |
| (jing9 via szetszwo) | |
| HDFS-6029. Secondary NN fails to checkpoint after -rollingUpgrade prepare. | |
| (jing9) | |
| HDFS-6032. -rollingUpgrade query hits NPE after the NN restarts. (Haohui Mai | |
| via jing9) | |
| HDFS-6031. Add back the "-rollingUpgrade started" namenode startup option; | |
| otherwise, namenode cannot start when the layout version is changed. | |
| (szetszwo) | |
| HDFS-6034. Use DataNodeLayoutVersion for DN registration check and do not | |
| verify layout version if there is a rolling upgrade in progress. (szetszwo) | |
| HDFS-6013. add rollingUpgrade information to latest UI. | |
| (Vinayakumar B via wheat9) | |
| HDFS-6042. Fix rolling upgrade documentation and error messages. (szetszwo | |
| via Arpit Agarwal) | |
| HDFS-6041. Downgrade/Finalize should rename the rollback image instead of | |
| purging it. (jing9) |