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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3810) HiveHistory.log need to replace '\r' with space before writing Entry.value to historyfile
Date Fri, 01 Feb 2013 16:12:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13568839#comment-13568839
] 

Edward Capriolo commented on HIVE-3810:
---------------------------------------

Doesn't java.io.File have constants to detect the line terminiator per OS. can we possibly
use that?
                
> HiveHistory.log need to replace '\r' with space before writing Entry.value to historyfile
> -----------------------------------------------------------------------------------------
>
>                 Key: HIVE-3810
>                 URL: https://issues.apache.org/jira/browse/HIVE-3810
>             Project: Hive
>          Issue Type: Bug
>          Components: Logging
>            Reporter: qiangwang
>            Assignee: Mark Grover
>            Priority: Minor
>         Attachments: HIVE-3810.1.patch, HIVE-3810.2.patch
>
>
> HiveHistory.log will replace '\n' with space before writing Entry.value to history file:
>     val = val.replace('\n', ' ');
> but HiveHistory.parseHiveHistory use BufferedReader.readLine which takes '\n', '\r',
'\r\n'  as line delimiter to parse history file
> if val contains '\r', there is a high possibility that HiveHistory.parseLine will fail,
in which case usually RecordTypes.valueOf(recType) will throw exception 'java.lang.IllegalArgumentException'
> HiveHistory.log need to replace '\r' with space as well:
> val = val.replace('\n', ' ');
> changed to
> val = val.replaceAll("\r|\n", " ");
> or
> val = val.replace('\r', ' ').replace('\n', ' ');

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