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From "Lewis John McGibbney (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GORA-24) Throwing EOFException with MEDIUMBLOB type for inlinks column
Date Mon, 07 Jan 2013 23:30:13 GMT

    [ https://issues.apache.org/jira/browse/GORA-24?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13546406#comment-13546406

Lewis John McGibbney commented on GORA-24:

Hi Henry, yes the idea is to use JOOQ as is provides support for a wide variety of SQL stores
out of the box... something which would be very appealing to users for obvious reasons.
There is a separate Jira issue on this topic altogether GORA-86 
> Throwing EOFException with MEDIUMBLOB type for inlinks column
> -------------------------------------------------------------
>                 Key: GORA-24
>                 URL: https://issues.apache.org/jira/browse/GORA-24
>             Project: Apache Gora
>          Issue Type: Bug
>          Components: storage-sql
>         Environment: MySQL
>            Reporter: Alexis
>            Assignee: Lewis John McGibbney
>             Fix For: 0.4
> I had an exception with DbUpdaterJob complaining that inlinks column of type BLOB in
webpage table was not big enough to store all the incoming links. So I changed the column
definition in gora-sql-mapping.xml from BLOB to MEDIUMBLOB:
>     <field name="inlinks" column="inlinks" jdbc-type="MEDIUMBLOB"/>
> Now I systematically get an exception in the update step:
> java.io.IOException: java.sql.BatchUpdateException: Error reading from InputStream java.io.EOFException
> 	at org.apache.gora.sql.store.SqlStore.flush(SqlStore.java:341)
> 	at org.apache.gora.sql.store.SqlStore.close(SqlStore.java:185)
> 	at org.apache.gora.mapreduce.GoraRecordWriter.close(GoraRecordWriter.java:55)
> 	at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:567)
> 	at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:408)
> 	at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:216)
> Caused by: java.sql.BatchUpdateException: Error reading from InputStream java.io.EOFException
> 	at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2020)
> 	at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1451)
> 	at org.apache.gora.sql.store.SqlStore.flush(SqlStore.java:329)
> 	... 5 more

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