FAQ
class names in Configuration are not resolved if the configuration value has a white space
-------------------------------------------------------------------------------------------

Key: HADOOP-4416
URL: https://issues.apache.org/jira/browse/HADOOP-4416
Project: Hadoop Core
Issue Type: Bug
Environment: all
Reporter: Alejandro Abdelnur
Fix For: 0.19.0


If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.

For example:

{code}
<property>
<name>mapred.mapper.class</name>
<value>
com.foo.MyMapper
</value>
</property>
{code}

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  • Alejandro Abdelnur (JIRA) at Oct 15, 2008 at 6:44 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639744#action_12639744 ]

    Alejandro Abdelnur commented on HADOOP-4416:
    --------------------------------------------

    The {{Configuration.getClassByName()}} method should do a {{name.trim()}}
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Fix For: 0.19.0


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Steve Loughran (JIRA) at Oct 15, 2008 at 10:52 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639795#action_12639795 ]

    Steve Loughran commented on HADOOP-4416:
    ----------------------------------------

    This is an instance of HADOOP-4212; a .trim() does seem appropriate here, assuming that HADOOP-4212 is going to remain open or wontfix.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Fix For: 0.19.0


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Alejandro Abdelnur (JIRA) at Oct 15, 2008 at 11:32 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639817#action_12639817 ]

    Alejandro Abdelnur commented on HADOOP-4416:
    --------------------------------------------

    This is not really an instance of HADOOP-4212. Personally I would agree that for configuration values you can safely trim them, but I can see people opposing to it.

    For class names it is different, you don't want the spaces.

    And it should be done in the {{getClassByName()}} method to properly handle the {{getClasses()}} method, this is important for values like:

    {code}
    <property>
    <name>io.compression.codecs</name>
    <value>org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec</value>
    </property>
    {code}

    Where if you have several classes you may want to have an enter between commas for readability.


    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Fix For: 0.19.0


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Nigel Daley (JIRA) at Oct 15, 2008 at 2:50 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639869#action_12639869 ]

    Nigel Daley commented on HADOOP-4416:
    -------------------------------------

    If this isn't a regression, then this isn't for 0.19.0.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Fix For: 0.19.0


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Tsz Wo (Nicholas), SZE (JIRA) at Oct 15, 2008 at 5:47 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639907#action_12639907 ]

    Tsz Wo (Nicholas), SZE commented on HADOOP-4416:
    ------------------------------------------------

    +1 for trimming in getClassByName() but this is not for 0.19.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Fix For: 0.19.0


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Enis Soztutar (JIRA) at Oct 17, 2008 at 12:54 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Enis Soztutar updated HADOOP-4416:
    ----------------------------------

    Fix Version/s: (was: 0.19.0)

    Moving from 0.19 due to feature freeze.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur

    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Oct 24, 2008 at 7:24 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri reassigned HADOOP-4416:
    -------------------------------------

    Assignee: Abhijit Bagri
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri

    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Oct 24, 2008 at 7:26 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri updated HADOOP-4416:
    ----------------------------------

    Attachment: HADOOP-4416.patch

    Patch for this. Also added a test case for getClass() and getClasses()
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Sreekanth Ramakrishnan (JIRA) at Oct 24, 2008 at 7:52 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642403#action_12642403 ]

    Sreekanth Ramakrishnan commented on HADOOP-4416:
    ------------------------------------------------

    Sorry, for commenting this late. I think this issue is not just related to class names. It is present with all values which are being read. I think we should deal with this generically instead of fixing part by part. I had filed a JIRA related to this issue, you can also take a look at the discussion which has happened at that place. [HADOOP-4212|https://issues.apache.org/jira/browse/HADOOP-4212]
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Oct 24, 2008 at 8:46 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642415#action_12642415 ]

    Abhijit Bagri commented on HADOOP-4416:
    ---------------------------------------

    If there is a consensus on HADOOP-4212, IMO that should be the way to do it. I am not sure the discussion there are going in that direction though.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Oct 24, 2008 at 9:06 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642420#action_12642420 ]

    abagri edited comment on HADOOP-4416 at 10/24/08 2:05 AM:
    -----------------------------------------------------------------

    As per discussion on HADOOP-4212, I think a compatible changes list should apply for the following functions. Individual function trims will be needed

    getInt()
    getLong()
    getFloat()
    getBoolean()
    getRange()
    getClasses()
    getClass()

    I am not sure about getString() and getStringCollection(), Comments?

    was (Author: abagri):
    As per discussion on HADOOP-4212, I think a compatible changes list should apply for the following functions. Individual function trims will be needed

    getInt()
    getLong()
    getHexDigits()
    getFloat()
    getBoolean()
    getRange()
    getClasses()
    getClass()

    I am not sure about getString() and getStringCollection(), Comments?
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Oct 24, 2008 at 9:38 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri updated HADOOP-4416:
    ----------------------------------

    Attachment: HADOOP-4416-v2.patch

    Here is patch which takes care of whitespace for following functions:

    getInt
    getLong
    getFloat
    getBoolean - also made the comparison case sensitive here.
    getClass
    getClasses

    I realized that IntegerRange already does a trim for each value in the comma separated list. Modified a test case to account for that. Added test cases for others too.

    Comments?
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416-v2.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Steve Loughran (JIRA) at Oct 24, 2008 at 10:58 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642436#action_12642436 ]

    Steve Loughran commented on HADOOP-4416:
    ----------------------------------------

    Looking at the patch,


    1. You need tests of the default handling. The get operations are all calling .trim() before checking for the result being null; as a result they will probably NPE rather than return defaults

    e.g, what happens on conf.getLong("undefined-key",23);

    public long getLong(String name, long defaultValue) {
    - String valueString = get(name);
    + String valueString = get(name).trim();
    if (valueString == null)
    return defaultValue;

    2. I'd recommend the trim operation is made a (protected?) method in Configuration

    protected String trim(String source) {
    return source==null?source:source.trim();
    }

    One place to keep the logic, one test for null handling might suffice


    3. the {{.toLowerCase()}} operation for getBoolean should be made locale neutral, by adding a locale parameter:
    {{toLowerCase(Locale.EN_US)}}

    4. Also, getBoolean shouldn't do any toLowerCase() operations on null values.

    5. The changes to getBoolean() change the semantics of the operation. Currently

    bool b=conf.getBoolean("something",false"); returns false if "something" is set to "TRUE" in the file. With the case change, it will evaluate to true. I don't know if this matters, but it isn't completely backwards compatible.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416-v2.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Oct 24, 2008 at 11:40 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri updated HADOOP-4416:
    ----------------------------------

    Attachment: HADOOP-4416-v3.patch

    Thanks, Steve for reviewing the patch. I updated the patch with your comments.

    Making trim() protected makes sense.

    Strictly speaking, doing toLowerCase does break semantics. I would say that if you have a conf.getBoolean("something-TRUE", false), it is more likely a bug. I am leaving this out of the scope of this jira. I will file a separate issue on that.

    Added test cases for default handling.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Steve Loughran (JIRA) at Oct 24, 2008 at 2:58 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642477#action_12642477 ]

    Steve Loughran commented on HADOOP-4416:
    ----------------------------------------

    Patch looks good. Reviewing the trim() method, I think it could be made simpler by explicitly returning null for a null argument
    {code}
    protected String trim(String source) {
    return source==null ? null : source.trim();
    }
    {code}
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Alejandro Abdelnur (JIRA) at Oct 25, 2008 at 3:10 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642589#action_12642589 ]

    Alejandro Abdelnur commented on HADOOP-4416:
    --------------------------------------------

    Looks good, adding to Steve's changes:

    {code}
    private String trim(String source) {
    return (source==null) ? null : source.trim();
    }
    {code}

    Also, remove the {import java.util.Locale} for {Configuration}.
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Alejandro Abdelnur (JIRA) at Dec 2, 2008 at 5:54 am
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Alejandro Abdelnur updated HADOOP-4416:
    ---------------------------------------

    Fix Version/s: 0.20.0
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Fix For: 0.20.0

    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
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  • Abhijit Bagri (JIRA) at Dec 11, 2008 at 1:06 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri updated HADOOP-4416:
    ----------------------------------

    Attachment: HADOOP-4416-v4.patch.txt

    Thanks for the reviews. Incorporated all the suggestions.


    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Fix For: 0.20.0

    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416-v4.patch.txt, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
    --
    This message is automatically generated by JIRA.
    -
    You can reply to this email to add a comment to the issue online.
  • Abhijit Bagri (JIRA) at Dec 11, 2008 at 1:08 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri updated HADOOP-4416:
    ----------------------------------

    Attachment: HADOOP-4416-v4.patch
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Fix For: 0.20.0

    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416-v4.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
    --
    This message is automatically generated by JIRA.
    -
    You can reply to this email to add a comment to the issue online.
  • Abhijit Bagri (JIRA) at Dec 11, 2008 at 1:08 pm
    [ https://issues.apache.org/jira/browse/HADOOP-4416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Abhijit Bagri updated HADOOP-4416:
    ----------------------------------

    Attachment: (was: HADOOP-4416-v4.patch.txt)
    class names in Configuration are not resolved if the configuration value has a white space
    -------------------------------------------------------------------------------------------

    Key: HADOOP-4416
    URL: https://issues.apache.org/jira/browse/HADOOP-4416
    Project: Hadoop Core
    Issue Type: Bug
    Environment: all
    Reporter: Alejandro Abdelnur
    Assignee: Abhijit Bagri
    Fix For: 0.20.0

    Attachments: HADOOP-4416-v2.patch, HADOOP-4416-v3.patch, HADOOP-4416-v4.patch, HADOOP-4416.patch


    If an entry in the configuration used for a class contains spaces or enters before or after the {{getClass}} and {{getClasses}} methods fail to resolve the class.
    For example:
    {code}
    <property>
    <name>mapred.mapper.class</name>
    <value>
    com.foo.MyMapper
    </value>
    </property>
    {code}
    --
    This message is automatically generated by JIRA.
    -
    You can reply to this email to add a comment to the issue online.

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