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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GORA-388) MongoStore: Fix handling of Utf8 in filters
Date Sun, 19 Oct 2014 17:14:34 GMT

    [ https://issues.apache.org/jira/browse/GORA-388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176353#comment-14176353
] 

ASF GitHub Bot commented on GORA-388:
-------------------------------------

GitHub user drazzib opened a pull request:

    https://github.com/apache/gora/pull/14

    GORA-388: Fix handling of Utf8 type in MongoStore local filters.

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/Dictanova/gora GORA-388

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/gora/pull/14.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #14
    
----
commit 4001927515d9b7538ba508d6c8c4cd61fa68f53d
Author: Damien Raude-Morvan <drazzib@drazzib.com>
Date:   2014-10-19T17:12:03Z

    GORA-388: Fix handling of Utf8 type in MongoStore local filters.

----


> MongoStore: Fix handling of Utf8 in filters
> -------------------------------------------
>
>                 Key: GORA-388
>                 URL: https://issues.apache.org/jira/browse/GORA-388
>             Project: Apache Gora
>          Issue Type: Bug
>          Components: gora-mongodb
>    Affects Versions: 0.5
>            Reporter: Damien Raude-Morvan
>
> Gora 0.5 MongoDB driver fail to properly serialize Utf8 instance passed to its local
filters implementation.
> Here is sample code
> {noformat}
> filter.getOperands().add(new Utf8(batchId));
> {noformat}
> that will trigger the following exception at runtime
> {noformat}
> java.lang.IllegalArgumentException: can't serialize class
> org.apache.avro.util.Utf8
> at org.bson.BasicBSONEncoder._putObjectField(BasicBSONEncoder.java:284)
> at org.bson.BasicBSONEncoder.putObject(BasicBSONEncoder.java:185)
> at org.bson.BasicBSONEncoder.putObject(BasicBSONEncoder.java:131)
> at com.mongodb.DefaultDBEncoder.writeObject(DefaultDBEncoder.java:33)
> at com.mongodb.OutMessage.putObject(OutMessage.java:289)
> at com.mongodb.OutMessage.writeQuery(OutMessage.java:211)
> at com.mongodb.OutMessage.query(OutMessage.java:86)
> at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:81)
> at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:66)
> at com.mongodb.DBCursor._check(DBCursor.java:458)
> at com.mongodb.DBCursor._hasNext(DBCursor.java:546)
> at com.mongodb.DBCursor.hasNext(DBCursor.java:571)
> at
> org.apache.gora.mongodb.query.MongoDBResult.nextInner(MongoDBResult.java:69)
> at org.apache.gora.query.impl.ResultBase.next(ResultBase.java:114)
> at
> org.apache.gora.mapreduce.GoraRecordReader.nextKeyValue(GoraRecordReader.java:119)
> at
> org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:531)
> at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
> at
> org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:223)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
> {noformat}
> This pattern is extensively used by Apache Nutch :
> * [FetcherJob|https://github.com/apache/nutch/blob/2.x/src/java/org/apache/nutch/fetcher/FetcherJob.java#L218]
> * [ParserJob|https://github.com/apache/nutch/blob/2.x/src/java/org/apache/nutch/parse/ParserJob.java#L274]
> * [DbUpdaterJob|https://github.com/apache/nutch/blob/2.x/src/java/org/apache/nutch/crawl/DbUpdaterJob.java#L128]



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