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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15273) Druid http client not configured correctly
Date Tue, 29 Nov 2016 09:54:59 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15704843#comment-15704843
] 

Lefty Leverenz commented on HIVE-15273:
---------------------------------------

Doc note:  This adds *hive.druid.http.numConnection* and *hive.druid.http.read.timeout* to
HiveConf.java, so the wiki needs to be updated.

Either we need a new section for Druid (perhaps after the HiveServer2 section) or the parameters
should go at the end of the general section:

* [Configuration Properties -- Query and DDL Execution | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-QueryandDDLExecution]

> Druid http client not configured correctly
> ------------------------------------------
>
>                 Key: HIVE-15273
>                 URL: https://issues.apache.org/jira/browse/HIVE-15273
>             Project: Hive
>          Issue Type: Bug
>          Components: Druid integration
>    Affects Versions: 2.2.0
>            Reporter: slim bouguerra
>            Assignee: slim bouguerra
>            Priority: Minor
>              Labels: TODOC2.2
>             Fix For: 2.2.0
>
>         Attachments: 0001-adding-confing-to-http-client.patch, HIVE-15273.patch
>
>
> Current used http client by the druid-hive record reader is constructed with default
values. Default values of numConnection and ReadTimeout are very small which can lead to following
exception " ERROR [2ee34a2b-c8a5-4748-ab91-db3621d2aa5c main] CliDriver: Failed with exception
java.io.IOException:java.io.IOException: java.io.IOException: org.apache.h
> ive.druid.org.jboss.netty.channel.ChannelException: Channel disconnected"
> Full stack can be found here.https://gist.github.com/b-slim/384ca6a96698f5b51ad9b171cff556a2



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