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https://issues.apache.org/jira/browse/HDDS-1569?focusedWorklogId=314945&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314945
 ]

ASF GitHub Bot logged work on HDDS-1569:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 19/Sep/19 10:10
            Start Date: 19/Sep/19 10:10
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on issue #1431: HDDS-1569 
Support creating multiple pipelines with same datanode
URL: https://github.com/apache/hadoop/pull/1431#issuecomment-533063582
 
 
   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | 0 | reexec | 35 | Docker mode activated. |
   ||| _ Prechecks _ |
   | +1 | dupname | 0 | No case conflicting files found. |
   | +1 | @author | 0 | The patch does not contain any @author tags. |
   | +1 | test4tests | 0 | The patch appears to include 3 new or modified test 
files. |
   ||| _ HDDS-1564 Compile Tests _ |
   | 0 | mvndep | 24 | Maven dependency ordering for branch |
   | +1 | mvninstall | 608 | HDDS-1564 passed |
   | +1 | compile | 399 | HDDS-1564 passed |
   | +1 | checkstyle | 75 | HDDS-1564 passed |
   | +1 | mvnsite | 0 | HDDS-1564 passed |
   | +1 | shadedclient | 991 | branch has no errors when building and testing 
our client artifacts. |
   | +1 | javadoc | 177 | HDDS-1564 passed |
   | 0 | spotbugs | 443 | Used deprecated FindBugs config; considering 
switching to SpotBugs. |
   | +1 | findbugs | 652 | HDDS-1564 passed |
   ||| _ Patch Compile Tests _ |
   | 0 | mvndep | 31 | Maven dependency ordering for patch |
   | +1 | mvninstall | 630 | the patch passed |
   | +1 | compile | 424 | the patch passed |
   | +1 | javac | 424 | the patch passed |
   | +1 | checkstyle | 85 | the patch passed |
   | +1 | mvnsite | 0 | the patch passed |
   | +1 | whitespace | 0 | The patch has no whitespace issues. |
   | +1 | shadedclient | 755 | patch has no errors when building and testing 
our client artifacts. |
   | +1 | javadoc | 187 | the patch passed |
   | -1 | findbugs | 260 | hadoop-hdds generated 1 new + 0 unchanged - 0 fixed 
= 1 total (was 0) |
   ||| _ Other Tests _ |
   | +1 | unit | 310 | hadoop-hdds in the patch passed. |
   | -1 | unit | 2026 | hadoop-ozone in the patch failed. |
   | +1 | asflicense | 47 | The patch does not generate ASF License warnings. |
   | | | 8347 | |
   
   
   | Reason | Tests |
   |-------:|:------|
   | FindBugs | module:hadoop-hdds |
   |  |  Dead store to dnDetails in 
org.apache.hadoop.hdds.scm.safemode.HealthyPipelineSafeModeRule.process(SCMDatanodeHeartbeatDispatcher$PipelineReportFromDatanode)
  At 
HealthyPipelineSafeModeRule.java:org.apache.hadoop.hdds.scm.safemode.HealthyPipelineSafeModeRule.process(SCMDatanodeHeartbeatDispatcher$PipelineReportFromDatanode)
  At HealthyPipelineSafeModeRule.java:[line 119] |
   | Failed junit tests | hadoop.ozone.client.rpc.TestReadRetries |
   |   | hadoop.ozone.client.rpc.TestOzoneRpcClientWithRatis |
   |   | hadoop.hdds.scm.pipeline.TestSCMPipelineManager |
   |   | hadoop.ozone.client.rpc.TestBlockOutputStream |
   |   | hadoop.ozone.client.rpc.TestContainerStateMachineFailures |
   |   | hadoop.hdds.scm.pipeline.TestRatisPipelineProvider |
   |   | hadoop.hdds.scm.pipeline.TestSCMRestart |
   |   | hadoop.ozone.client.rpc.TestOzoneClientRetriesOnException |
   |   | hadoop.ozone.client.rpc.TestKeyInputStream |
   |   | hadoop.ozone.client.rpc.TestMultiBlockWritesWithDnFailures |
   |   | hadoop.ozone.client.rpc.TestSecureOzoneRpcClient |
   |   | hadoop.hdds.scm.pipeline.TestNodeFailure |
   |   | hadoop.hdds.scm.safemode.TestSCMSafeModeWithPipelineRules |
   |   | hadoop.ozone.client.rpc.TestOzoneRpcClient |
   |   | hadoop.ozone.ozShell.TestOzoneShell |
   |   | hadoop.ozone.client.rpc.Test2WayCommitInRatis |
   |   | hadoop.hdds.scm.pipeline.TestPipelineClose |
   |   | hadoop.ozone.client.rpc.TestHybridPipelineOnDatanode |
   |   | hadoop.ozone.client.rpc.TestCloseContainerHandlingByClient |
   |   | hadoop.hdds.scm.pipeline.TestRatisPipelineCreateAndDestroy |
   |   | hadoop.hdds.scm.pipeline.TestNode2PipelineMap |
   |   | 
hadoop.ozone.container.common.statemachine.commandhandler.TestCloseContainerByPipeline
 |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | Client=19.03.1 Server=19.03.1 base: 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1431/2/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/1431 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient findbugs checkstyle |
   | uname | Linux a3e22edef6ea 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 
16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | personality/hadoop.sh |
   | git revision | HDDS-1564 / 326b5ac |
   | Default Java | 1.8.0_222 |
   | findbugs | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1431/2/artifact/out/new-findbugs-hadoop-hdds.html
 |
   | unit | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1431/2/artifact/out/patch-unit-hadoop-ozone.txt
 |
   |  Test Results | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1431/2/testReport/ |
   | Max. process+thread count | 5341 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdds/server-scm hadoop-ozone/integration-test U: . |
   | Console output | 
https://builds.apache.org/job/hadoop-multibranch/job/PR-1431/2/console |
   | versions | git=2.7.4 maven=3.3.9 findbugs=3.1.0-RC1 |
   | Powered by | Apache Yetus 0.10.0 http://yetus.apache.org |
   
   
   This message was automatically generated.
   
   
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 314945)
    Time Spent: 0.5h  (was: 20m)

> Add ability to SCM for creating multiple pipelines with same datanode
> ---------------------------------------------------------------------
>
>                 Key: HDDS-1569
>                 URL: https://issues.apache.org/jira/browse/HDDS-1569
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>          Components: SCM
>            Reporter: Siddharth Wagle
>            Assignee: Li Cheng
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> - Refactor _RatisPipelineProvider.create()_ to be able to create pipelines 
> with datanodes that are not a part of sufficient pipelines
> - Define soft and hard upper bounds for pipeline membership
> - Create SCMAllocationManager that can be leveraged to get a candidate set of 
> datanodes based on placement policies
> - Add the datanodes to internal datastructures



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