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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (HDDS-1105) Add mechanism in Recon to obtain DB snapshot 'delta' updates from Ozone Manager.
Date Thu, 15 Aug 2019 20:11:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-1105?focusedWorklogId=295721&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-295721
]

ASF GitHub Bot logged work on HDDS-1105:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 15/Aug/19 20:10
            Start Date: 15/Aug/19 20:10
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on issue #1259: HDDS-1105 : Add mechanism in
Recon to obtain DB snapshot 'delta' updates from Ozone Manager
URL: https://github.com/apache/hadoop/pull/1259#issuecomment-521779783
 
 
   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | 0 | reexec | 43 | Docker mode activated. |
   ||| _ Prechecks _ |
   | +1 | dupname | 1 | No case conflicting files found. |
   | +1 | @author | 0 | The patch does not contain any @author tags. |
   | +1 | test4tests | 0 | The patch appears to include 9 new or modified test files. |
   ||| _ trunk Compile Tests _ |
   | 0 | mvndep | 22 | Maven dependency ordering for branch |
   | +1 | mvninstall | 597 | trunk passed |
   | +1 | compile | 352 | trunk passed |
   | +1 | checkstyle | 66 | trunk passed |
   | +1 | mvnsite | 0 | trunk passed |
   | +1 | shadedclient | 855 | branch has no errors when building and testing our client artifacts.
|
   | +1 | javadoc | 152 | trunk passed |
   | 0 | spotbugs | 416 | Used deprecated FindBugs config; considering switching to SpotBugs.
|
   | +1 | findbugs | 606 | trunk passed |
   | -0 | patch | 454 | Used diff version of patch file. Binary files and potentially other
changes not applied. Please rebase and squash commits if necessary. |
   ||| _ Patch Compile Tests _ |
   | 0 | mvndep | 30 | Maven dependency ordering for patch |
   | +1 | mvninstall | 534 | the patch passed |
   | +1 | compile | 358 | the patch passed |
   | +1 | javac | 358 | the patch passed |
   | +1 | checkstyle | 65 | the patch passed |
   | +1 | mvnsite | 0 | the patch passed |
   | +1 | whitespace | 0 | The patch has no whitespace issues. |
   | +1 | xml | 2 | The patch has no ill-formed XML file. |
   | +1 | shadedclient | 670 | patch has no errors when building and testing our client artifacts.
|
   | -1 | javadoc | 86 | hadoop-ozone generated 6 new + 20 unchanged - 0 fixed = 26 total
(was 20) |
   | +1 | findbugs | 619 | the patch passed |
   ||| _ Other Tests _ |
   | +1 | unit | 296 | hadoop-hdds in the patch passed. |
   | -1 | unit | 1796 | hadoop-ozone in the patch failed. |
   | +1 | asflicense | 37 | The patch does not generate ASF License warnings. |
   | | | 7423 | |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | hadoop.hdds.scm.pipeline.TestRatisPipelineProvider |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/hadoop-multibranch/job/PR-1259/6/artifact/out/Dockerfile
|
   | GITHUB PR | https://github.com/apache/hadoop/pull/1259 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient
findbugs checkstyle xml |
   | uname | Linux 12a6161526fb 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | personality/hadoop.sh |
   | git revision | trunk / 46d6191 |
   | Default Java | 1.8.0_222 |
   | javadoc | https://builds.apache.org/job/hadoop-multibranch/job/PR-1259/6/artifact/out/diff-javadoc-javadoc-hadoop-ozone.txt
|
   | unit | https://builds.apache.org/job/hadoop-multibranch/job/PR-1259/6/artifact/out/patch-unit-hadoop-ozone.txt
|
   |  Test Results | https://builds.apache.org/job/hadoop-multibranch/job/PR-1259/6/testReport/
|
   | Max. process+thread count | 4448 (vs. ulimit of 5500) |
   | modules | C: hadoop-hdds/common hadoop-ozone/common hadoop-ozone/ozone-manager hadoop-ozone/ozone-recon
U: . |
   | Console output | https://builds.apache.org/job/hadoop-multibranch/job/PR-1259/6/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: 295721)
    Time Spent: 2h 20m  (was: 2h 10m)

> Add mechanism in Recon to obtain DB snapshot 'delta' updates from Ozone Manager.
> --------------------------------------------------------------------------------
>
>                 Key: HDDS-1105
>                 URL: https://issues.apache.org/jira/browse/HDDS-1105
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> *Some context*
> The FSCK server will periodically invoke this OM API passing in the most recent sequence
number of its own RocksDB instance. The OM will use the RockDB getUpdateSince() API to answer
this query. Since the getUpdateSince API only works against the RocksDB WAL, we have to configure
OM RocksDB WAL (https://github.com/facebook/rocksdb/wiki/Write-Ahead-Log) with sufficient
max size to make this API useful. If the OM cannot get all transactions since the given sequence
number (due to WAL flushing), it can error out. In that case the FSCK server can fall back
to getting the entire checkpoint snapshot implemented in HDDS-1085.



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