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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (HIVE-21910) Multiple target location generation in HostAffinitySplitLocationProvider
Date Thu, 27 Jun 2019 18:14:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-21910?focusedWorklogId=268707&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-268707
]

ASF GitHub Bot logged work on HIVE-21910:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Jun/19 18:13
            Start Date: 27/Jun/19 18:13
    Worklog Time Spent: 10m 
      Work Description: odraese commented on pull request #690: HIVE-21910: Multiple target
location generation in HostAffinitySplitLocationProvider
URL: https://github.com/apache/hive/pull/690#discussion_r298297862
 
 

 ##########
 File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
 ##########
 @@ -4440,6 +4440,12 @@ private static void populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
         "preferring one of the locations provided by the split itself. If there is no llap
daemon " +
         "running on any of those locations (or on the cloud), fall back to a cache affinity
to" +
         " an LLAP node. This is effective only if hive.execution.mode is llap."),
+    LLAP_CLIENT_CONSISTENT_SPLITS_NUMBER("hive.llap.client.consistent.splits.number", 1,
+        "The number of the preferred locations to generate if hive.llap.client.consistent.splits\n"
+
 
 Review comment:
   I would remove "preferred" from "preferred locations". See comment in HostAffinitiyLocationProvider
below.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 268707)
    Time Spent: 0.5h  (was: 20m)

> Multiple target location generation in HostAffinitySplitLocationProvider
> ------------------------------------------------------------------------
>
>                 Key: HIVE-21910
>                 URL: https://issues.apache.org/jira/browse/HIVE-21910
>             Project: Hive
>          Issue Type: Sub-task
>          Components: llap
>            Reporter: Peter Vary
>            Assignee: Peter Vary
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-21910.patch
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> We need to generate multiple target locations by HostAffinitySplitLocationProvider,
so we will have deterministic fallback nodes in case the target node is disabled



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