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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (HDDS-1780) TestFailureHandlingByClient tests are flaky
Date Tue, 16 Jul 2019 16:53:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-1780?focusedWorklogId=277584&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-277584
]

ASF GitHub Bot logged work on HDDS-1780:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Jul/19 16:52
            Start Date: 16/Jul/19 16:52
    Worklog Time Spent: 10m 
      Work Description: adoroszlai commented on pull request #1073: HDDS-1780. TestFailureHandlingByClient
tests are flaky.
URL: https://github.com/apache/hadoop/pull/1073#discussion_r304001568
 
 

 ##########
 File path: hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockOutputStream.java
 ##########
 @@ -160,7 +159,7 @@ public BlockOutputStream(BlockID blockID,
     bufferList = null;
     totalDataFlushedLength = 0;
     writtenDataLength = 0;
-    failedServers = Collections.emptyList();
+    failedServers = new ArrayList<>(0);
 
 Review comment:
   Nice!
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 277584)
    Time Spent: 0.5h  (was: 20m)

> TestFailureHandlingByClient tests are flaky
> -------------------------------------------
>
>                 Key: HDDS-1780
>                 URL: https://issues.apache.org/jira/browse/HDDS-1780
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>          Components: Ozone Client
>    Affects Versions: 0.5.0
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.5.0
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> The tests seem to fail bcoz , when the datanode goes down with stale node interval being
set to a low value, containers may get closed early and client writes might fail with closed
container exception rather than pipeline failure/Timeout exceptions as excepted in the tests.
The fix made here is to tune the stale node interval.



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