THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Status: RELEASED
Release History
Blocker/Critical (2.8.0):
| JIRA Number | Priority | Assignee | Status | Description |
|---|---|---|---|---|
| HDFS-10684 | Blocker | John Zhuge | DONE | WebHDFS DataNode calls fail without parameter createparent |
| HDFS-11180 | Blocker | Akira Ajisaka | DONE | Intermittent deadlock in NameNode when failover happens |
| YARN-5184 | Blocker | Sangjin Lee | DONE | Fix up incompatible changes introduced on ContainerStatus and NodeReport |
| YARN-5559 | Blocker | Akira Ajisaka | DONE | Analyse 2.8.0/3.0.0 jdiff reports and fix any issues |
| YARN-3866 | Blocker | Wangda Tan | DONE | AM-RM protocol changes to support container resizing (break API compatibility) |
| YARN-6029 | Critical | Tao Yang | DONE | CapacityScheduler deadlock when ParentQueue#getQueueUserAclInfo is called by Thread_A at the moment that Thread_B calls LeafQueue#assignContainers to release a reserved container |
| YARN-6068 | Blocker | Junping Du | DONE | Log aggregation get failed when NM restart even with recovery |
| YARN-6072 | Blocker | Ajith S | RM unable to start in secure mode | |
| MAPREDUCE-6816 | Blocker | Shen Yinjie | DONE | Progress bars in Web UI always at 100% |
| YARN-5709 | Critical | Karthik Kambatla | DONE | Cleanup leader election configs and pluggability |
| HADOOP-13250 | Critical | Vinod Kumar Vavilapalli | MOVE TO LATER | jdiff and dependency reports aren't linked in site web pages |
| HDFS-8674 | Critical | Daryn Sharp | DONE | Improve performance of postponed block scans |
| HADOOP-13826 | Critical | Sean Mackrory | DONE | S3A Deadlock in multipart copy due to thread pool limits. |
| HDFS-11209 | Critical | Xiaoyu Yao | MOVE TO LATER | SNN can't checkpoint when rolling upgrade is not finalized |
For details, please refer: https://s.apache.org/6kwx
TODOs before RC
| TODO item | Status - 1/4/2017 | Current Status |
|---|---|---|
| All blockers target for 2.8.0 are landed. | DONE | DONE |
| All JIRAs with fixVersion 2.8 get landed in branch-2.8 | 74 JIRAs identified that no patch landed | DONE |
| All JIRAs with fixVersion 2.7.1, 2.7.2, 2.7.3 have fix version of 2.8.0 | 352 JIRAs identified that not marked with 2.8.0. | DONE |
| All JIRAs with fixVersion of 2.7.1, 2.7.2 and 2.7.3 get landed in branch-2.8 | 17 JIRAs from 2.7.1 have no patch landed in 2.8.0 8 JIRAs from 2.7.2 have no patch landed in 2.8.0 16 JIRAs from 2.7.3 have no patch landed in 2.8.0 | DONE |
Release Scope
Important Features & Improvements:
| JIRA ID | Feature Description | JIRA ID | Feature Description |
|---|---|---|---|
| HADOOP-12909 | Support async call retry and failover which can be used in async DFS | HDFS-9239 | DataNode Lifeline Protocol: an alternative protocol for reporting DataNode |
HADOOP-12691 HADOOP-13008 | XFS Filter support in UIs. Cross Frame Scripting (XFS) prevention for UIs can be provided through | HDFS-9184 | Logging HDFS operation's caller context into audit logs |
HADOOP-12723 HADOOP-12548 HADOOP-12537 | S3A improvements: add ability to plug in any AWSCredentialsProvider, | HDFS-9945 | A new Datanode command for evicting writers which is useful when data node |
| HADOOP-12635 | WASB improvements: adding append API support | YARN-3458 | NodeManager CPU resource monitoring in Windows. |
HADOOP-11731 HADOOP-12651 | Build enhancements: replace dev-support with wrappers to Yetus, | YARN-41 | NM shutdown more graceful: NM will unregister to RM immediately rather than |
| HADOOP-9477 | Add posixGroups support for LDAP groups mapping service. | YARN-261 | Add ability to fail a specific AM attempt in scenario of AM attempt get stuck. |
| HADOOP-13037 | Support integration with Azure Data Lake (ADL) as an alternative | YARN-4349 | CallerContext support in YARN audit log. |
HDFS-9711 HDFS-8155 HDFS-9057 | WebHDFS enhancements: integrate CSRF prevention filter in WebHDFS, | YARN-3623 | ATS versioning support: a new configuration to indicate timeline service version. |
| HDFS-9804 | Allow long-running Balancer to login with keytab | MAPREDUCE-6304 | Allow node labels get specificed in submitting MR jobs |
| HDFS-9835 | Add ReverseXML processor which reconstructs an fsimage from an XML file. | MAPREDUCE-6415 | Add a new tool to combine aggregated logs into HAR files |
| HDFS-9244 | Support nested encryption zones |
Number of Patches
| Project | Number of Patches Not Released Before (not include 3.0.0-alphaX) | Number of Patches Since 2.7.0 |
|---|---|---|
| COMMON | 655 | 774 |
| HDFS | 960 | 1137 |
| MAPREDUCE | 170 | 232 |
| YARN | 585 | 774 |
| TOTAL | 2370 | 2917 |