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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (HDDS-999) Make the DNS resolution in OzoneManager more resilient
Date Tue, 23 Apr 2019 19:25:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-999?focusedWorklogId=231645&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-231645
]

ASF GitHub Bot logged work on HDDS-999:
---------------------------------------

                Author: ASF GitHub Bot
            Created on: 23/Apr/19 19:24
            Start Date: 23/Apr/19 19:24
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on issue #758: HDDS-999. Make the DNS resolution
in OzoneManager more resilient. (swagle)
URL: https://github.com/apache/hadoop/pull/758#issuecomment-485940483
 
 
   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime | Comment |
   |:----:|----------:|--------:|:--------|
   | 0 | reexec | 25 | Docker mode activated. |
   ||| _ Prechecks _ |
   | 0 | yamllint | 0 | yamllint was not available. |
   | +1 | @author | 0 | The patch does not contain any @author tags. |
   | -1 | test4tests | 0 | The patch doesn't appear to include any new or modified tests.
 Please justify why no new tests are needed for this patch. Also please list what manual steps
were performed to verify this patch. |
   ||| _ trunk Compile Tests _ |
   | 0 | mvndep | 13 | Maven dependency ordering for branch |
   | +1 | mvninstall | 1022 | trunk passed |
   | +1 | compile | 107 | trunk passed |
   | +1 | checkstyle | 25 | trunk passed |
   | +1 | mvnsite | 52 | trunk passed |
   | +1 | shadedclient | 687 | branch has no errors when building and testing our client artifacts.
|
   | 0 | findbugs | 0 | Skipped patched modules with no Java source: hadoop-ozone/dist |
   | +1 | findbugs | 37 | trunk passed |
   | +1 | javadoc | 34 | trunk passed |
   ||| _ Patch Compile Tests _ |
   | 0 | mvndep | 12 | Maven dependency ordering for patch |
   | -1 | mvninstall | 18 | dist in the patch failed. |
   | +1 | compile | 101 | the patch passed |
   | +1 | javac | 101 | the patch passed |
   | +1 | checkstyle | 23 | the patch passed |
   | +1 | mvnsite | 42 | the patch passed |
   | +1 | whitespace | 0 | The patch has no whitespace issues. |
   | +1 | shadedclient | 683 | patch has no errors when building and testing our client artifacts.
|
   | 0 | findbugs | 0 | Skipped patched modules with no Java source: hadoop-ozone/dist |
   | +1 | findbugs | 43 | the patch passed |
   | +1 | javadoc | 31 | the patch passed |
   ||| _ Other Tests _ |
   | +1 | unit | 38 | ozone-manager in the patch passed. |
   | +1 | unit | 21 | dist in the patch passed. |
   | +1 | asflicense | 25 | The patch does not generate ASF License warnings. |
   | | | 3139 | |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | Client=17.05.0-ce Server=17.05.0-ce base: https://builds.apache.org/job/hadoop-multibranch/job/PR-758/2/artifact/out/Dockerfile
|
   | GITHUB PR | https://github.com/apache/hadoop/pull/758 |
   | Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  mvnsite 
unit  shadedclient  yamllint  findbugs  checkstyle  |
   | uname | Linux 33f2157700e6 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 / 59ded76 |
   | maven | version: Apache Maven 3.3.9 |
   | Default Java | 1.8.0_191 |
   | findbugs | v3.1.0-RC1 |
   | mvninstall | https://builds.apache.org/job/hadoop-multibranch/job/PR-758/2/artifact/out/patch-mvninstall-hadoop-ozone_dist.txt
|
   |  Test Results | https://builds.apache.org/job/hadoop-multibranch/job/PR-758/2/testReport/
|
   | Max. process+thread count | 446 (vs. ulimit of 5500) |
   | modules | C: hadoop-ozone/ozone-manager hadoop-ozone/dist U: hadoop-ozone |
   | Console output | https://builds.apache.org/job/hadoop-multibranch/job/PR-758/2/console
|
   | Powered by | Apache Yetus 0.9.0 http://yetus.apache.org |
   
   
   This message was automatically generated.
   
   
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 231645)
    Time Spent: 50m  (was: 40m)

> Make the DNS resolution in OzoneManager more resilient
> ------------------------------------------------------
>
>                 Key: HDDS-999
>                 URL: https://issues.apache.org/jira/browse/HDDS-999
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>          Components: Ozone Manager
>            Reporter: Elek, Marton
>            Assignee: Siddharth Wagle
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HDDS-999.01.patch
>
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> If the OzoneManager is started before scm the scm dns may not be available. In this case
the om should retry and re-resolve the dns, but as of now it throws an exception:
> {code:java}
> 2019-01-23 17:14:25 ERROR OzoneManager:593 - Failed to start the OzoneManager.
> java.net.SocketException: Call From om-0.om to null:0 failed on socket exception: java.net.SocketException:
Unresolved address; For more details see:  http://wiki.apache.org/hadoop/SocketException
>     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>     at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
>     at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:831)
>     at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:798)
>     at org.apache.hadoop.ipc.Server.bind(Server.java:566)
>     at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:1042)
>     at org.apache.hadoop.ipc.Server.<init>(Server.java:2815)
>     at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:994)
>     at org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:421)
>     at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:342)
>     at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:804)
>     at org.apache.hadoop.ozone.om.OzoneManager.startRpcServer(OzoneManager.java:563)
>     at org.apache.hadoop.ozone.om.OzoneManager.getRpcServer(OzoneManager.java:927)
>     at org.apache.hadoop.ozone.om.OzoneManager.<init>(OzoneManager.java:265)
>     at org.apache.hadoop.ozone.om.OzoneManager.createOm(OzoneManager.java:674)
>     at org.apache.hadoop.ozone.om.OzoneManager.main(OzoneManager.java:587)
> Caused by: java.net.SocketException: Unresolved address
>     at sun.nio.ch.Net.translateToSocketException(Net.java:131)
>     at sun.nio.ch.Net.translateException(Net.java:157)
>     at sun.nio.ch.Net.translateException(Net.java:163)
>     at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:76)
>     at org.apache.hadoop.ipc.Server.bind(Server.java:549)
>     ... 11 more
> Caused by: java.nio.channels.UnresolvedAddressException
>     at sun.nio.ch.Net.checkAddress(Net.java:101)
>     at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:218)
>     at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
>     ... 12 more{code}
> It should be fixed. (See also HDDS-421 which fixed the same problem in datanode side
and HDDS-907 which is the workaround while this issue is not resolved).



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