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If you were logged in you would be able to see more operations.
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File Attachments:
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Issue Links:
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Blocker
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This issue blocks:
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MAPREDUCE-252 Create an InputFormat for reading lines of text as Java Strings
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Dependants
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Reference
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This issue is related to:
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MAPREDUCE-245
Job and JobControl classes should return interfaces rather than implementations
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| Hadoop Flags: |
Reviewed
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| Release Note: |
Replaced parameters with context obejcts in Mapper, Reducer, Partitioner, InputFormat, and OutputFormat classes.
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| Resolution Date: |
15/Dec/08 10:22 PM
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This is a big change, but it will future-proof our API's. To maintain backwards compatibility, I'd suggest that we move over to a new package name (org.apache.hadoop.mapreduce) and deprecate the old interfaces and package. Basically, it will replace:
package org.apache.hadoop.mapred;
public interface Mapper extends JobConfigurable, Closeable {
void map(WritableComparable key, Writable value, OutputCollector output, Reporter reporter) throws IOException;
}
with:
package org.apache.hadoop.mapreduce;
public interface Mapper extends Closable {
void map(MapContext context) throws IOException;
}
where MapContext has the methods like getKey(), getValue(), collect(Key, Value), progress(), etc.
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Description
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This is a big change, but it will future-proof our API's. To maintain backwards compatibility, I'd suggest that we move over to a new package name (org.apache.hadoop.mapreduce) and deprecate the old interfaces and package. Basically, it will replace:
package org.apache.hadoop.mapred;
public interface Mapper extends JobConfigurable, Closeable {
void map(WritableComparable key, Writable value, OutputCollector output, Reporter reporter) throws IOException;
}
with:
package org.apache.hadoop.mapreduce;
public interface Mapper extends Closable {
void map(MapContext context) throws IOException;
}
where MapContext has the methods like getKey(), getValue(), collect(Key, Value), progress(), etc. |
Show » |
made changes - 29/Feb/08 07:24 AM
| Field |
Original Value |
New Value |
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Attachment
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context-objs.patch
[ 12376792
]
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made changes - 09/Apr/08 02:54 PM
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Link
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This issue is related to HADOOP-3219
[ HADOOP-3219
]
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made changes - 16/Jun/08 02:32 PM
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Link
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This issue relates to HADOOP-3566
[ HADOOP-3566
]
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made changes - 24/Jul/08 03:15 PM
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Link
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This issue is related to HADOOP-3822
[ HADOOP-3822
]
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made changes - 08/Sep/08 12:57 PM
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Link
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This issue blocks HADOOP-3566
[ HADOOP-3566
]
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made changes - 08/Sep/08 12:57 PM
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Link
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This issue relates to HADOOP-3566
[ HADOOP-3566
]
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made changes - 13/Nov/08 06:12 AM
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Link
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This issue blocks HADOOP-3788
[ HADOOP-3788
]
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made changes - 09/Dec/08 07:36 PM
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Attachment
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h1230.patch
[ 12395669
]
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made changes - 12/Dec/08 05:24 PM
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Attachment
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h1230.patch
[ 12395953
]
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made changes - 13/Dec/08 12:45 AM
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Attachment
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h1230.patch
[ 12395983
]
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made changes - 15/Dec/08 05:30 PM
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Attachment
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h1230.patch
[ 12396105
]
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made changes - 15/Dec/08 05:30 PM
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Status
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Open
[ 1
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Patch Available
[ 10002
]
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Fix Version/s
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0.20.0
[ 12313438
]
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made changes - 15/Dec/08 07:24 PM
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Attachment
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h1230.patch
[ 12396117
]
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made changes - 15/Dec/08 10:22 PM
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Resolution
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Fixed
[ 1
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Hadoop Flags
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[Reviewed]
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Status
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Patch Available
[ 10002
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Resolved
[ 5
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made changes - 25/Mar/09 07:02 PM
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Release Note
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Replaced parameters with context obejcts in Mapper, Reducer, Partitioner, InputFormat, and OutputFormat classes.
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made changes - 23/Apr/09 07:17 PM
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Status
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Resolved
[ 5
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Closed
[ 6
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made changes - 08/Jul/09 04:52 PM
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Component/s
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mapred
[ 12310690
]
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Improvement
Closed
