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https://issues.apache.org/jira/browse/HADOOP-15891?focusedWorklogId=479400&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-479400
 ]

ASF GitHub Bot logged work on HADOOP-15891:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Sep/20 11:37
            Start Date: 06/Sep/20 11:37
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2185:
URL: https://github.com/apache/hadoop/pull/2185#issuecomment-687765095


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | +0 :ok: |  reexec  |  28m 21s |  Docker mode activated.  |
   ||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  No case conflicting files 
found.  |
   | +0 :ok: |  markdownlint  |   0m  0s |  markdownlint was not available.  |
   | +1 :green_heart: |  @author  |   0m  1s |  The patch does not contain any 
@author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  The patch appears to include 
6 new or modified test files.  |
   ||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |   3m 24s |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  26m 32s |  trunk passed  |
   | +1 :green_heart: |  compile  |  20m 14s |  trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  compile  |  16m 55s |  trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  checkstyle  |   2m 52s |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   2m 57s |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  20m 41s |  branch has no errors when 
building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 41s |  trunk passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 14s |  trunk passed with JDK Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +0 :ok: |  spotbugs  |   3m 11s |  Used deprecated FindBugs config; 
considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   5m 25s |  trunk passed  |
   ||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 29s |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   1m 57s |  the patch passed  |
   | +1 :green_heart: |  compile  |  18m 46s |  the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javac  |  18m 46s |  the patch passed  |
   | +1 :green_heart: |  compile  |  16m 47s |  the patch passed with JDK 
Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  javac  |  16m 47s |  the patch passed  |
   | -0 :warning: |  checkstyle  |   2m 42s |  root: The patch generated 5 new 
+ 182 unchanged - 1 fixed = 187 total (was 183)  |
   | +1 :green_heart: |  mvnsite  |   2m 54s |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  The patch has no whitespace 
issues.  |
   | +1 :green_heart: |  shadedclient  |  15m  9s |  patch has no errors when 
building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 41s |  the patch passed with JDK 
Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1  |
   | +1 :green_heart: |  javadoc  |   3m 14s |  the patch passed with JDK 
Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01  |
   | +1 :green_heart: |  findbugs  |   5m 38s |  the patch passed  |
   ||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |   9m 29s |  hadoop-common in the patch passed. 
 |
   | -1 :x: |  unit  |  99m 13s |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   1m  6s |  The patch does not generate 
ASF License warnings.  |
   |  |   | 311m  6s |   |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | 
hadoop.hdfs.server.namenode.TestNameNodeRetryCacheMetrics |
   |   | hadoop.hdfs.server.sps.TestExternalStoragePolicySatisfier |
   |   | hadoop.hdfs.TestFileChecksumCompositeCrc |
   |   | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
   |   | hadoop.hdfs.server.namenode.TestPersistentStoragePolicySatisfier |
   |   | hadoop.hdfs.TestFileChecksum |
   |   | hadoop.hdfs.TestGetFileChecksum |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2185/15/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2185 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient findbugs checkstyle markdownlint |
   | uname | Linux 2a8252a0d357 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 | dev-support/bin/hadoop.sh |
   | git revision | trunk / 1841a5bb03f |
   | Default Java | Private Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.8+10-post-Ubuntu-0ubuntu118.04.1 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 |
   | checkstyle | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2185/15/artifact/out/diff-checkstyle-root.txt
 |
   | unit | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2185/15/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2185/15/testReport/ |
   | Max. process+thread count | 4529 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common 
hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2185/15/console |
   | versions | git=2.17.1 maven=3.6.0 findbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 479400)
    Time Spent: 4h 10m  (was: 4h)

> Provide Regex Based Mount Point In Inode Tree
> ---------------------------------------------
>
>                 Key: HADOOP-15891
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15891
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: viewfs
>            Reporter: zhenzhao wang
>            Assignee: zhenzhao wang
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HADOOP-15891.015.patch, HDFS-13948.001.patch, 
> HDFS-13948.002.patch, HDFS-13948.003.patch, HDFS-13948.004.patch, 
> HDFS-13948.005.patch, HDFS-13948.006.patch, HDFS-13948.007.patch, 
> HDFS-13948.008.patch, HDFS-13948.009.patch, HDFS-13948.011.patch, 
> HDFS-13948.012.patch, HDFS-13948.013.patch, HDFS-13948.014.patch, HDFS-13948_ 
> Regex Link Type In Mont Table-V0.pdf, HDFS-13948_ Regex Link Type In Mount 
> Table-v1.pdf
>
>          Time Spent: 4h 10m
>  Remaining Estimate: 0h
>
> This jira is created to support regex based mount point in Inode Tree. We 
> noticed that mount point only support fixed target path. However, we might 
> have user cases when target needs to refer some fields from source. e.g. We 
> might want a mapping of /cluster1/user1 => /cluster1-dc1/user-nn-user1, we 
> want to refer `cluster` and `user` field in source to construct target. It's 
> impossible to archive this with current link type. Though we could set 
> one-to-one mapping, the mount table would become bloated if we have thousands 
> of users. Besides, a regex mapping would empower us more flexibility. So we 
> are going to build a regex based mount point which target could refer groups 
> from src regex mapping. 



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