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POHibernate > CLOB > Oracle :(
 

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    <p>I am trying to write to an Oracle clob field a value over 4000 characters. This seams to be a common issue but non of the solutions seem to work. So I pray for help from here.</p> <p>Down and dirty info:<br> Using Oracle 9.2.0.8.0<br> Hibernate3 implementing pojo's with annotations<br> Tomcat 6.0.16<br> Oracle 10.2.x drivers<br> C3P0 connction pool provider </p> <p>In my persistence.xml I have:</p> <pre><code>&lt;persistence-unit name="DWEB" transaction-type="RESOURCE_LOCAL"&gt; &lt;provider&gt;org.hibernate.ejb.HibernatePersistence&lt;/provider&gt; &lt;properties&gt; &lt;property name="hibernate.archive.autodetection" value="class"/&gt; &lt;property name="hibernate.connection.password" value="###" /&gt; &lt;property name="hibernate.connection.username" value="###" /&gt; &lt;property name="hibernate.default_schema" value="schema" /&gt; &lt;property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" /&gt; &lt;property name="hibernate.c3p0.min_size" value="5" /&gt; &lt;property name="hibernate.c3p0.max_size" value="20" /&gt; &lt;property name="hibernate.c3p0.timeout" value="300" /&gt; &lt;property name="hibernate.c3p0.max_statements" value="50" /&gt; &lt;property name="hibernate.c3p0.idle_test_period" value="3000" /&gt; &lt;property name="show_sql" value="true" /&gt; &lt;property name="format_sql" value="true" /&gt; &lt;property name="use_sql_comments" value="true" /&gt; &lt;property name="SetBigStringTryClob" value="true"/&gt; &lt;property name="hibernate.jdbc.batch_size" value="0"/&gt; &lt;property name="hibernate.connection.url" value="jdbc:oracle:thin:@server.ss.com:1521:DDD"/&gt; &lt;property name="hibernate.connection.driver_class" value="oracle.jdbc.driver.OracleDriver"/&gt; &lt;/properties&gt; &lt;/persistence-unit&gt; </code></pre> <p>The getter and setter looks like:</p> <pre><code>@Lob @Column(name="COMMENT_DOC") public String getDocument(){ return get("Document"); } public void setDocument(String s){ put("Document",s); } </code></pre> <p>The exception I am getting is:</p> <pre><code>SEVERE: Servlet.service() for servlet SW threw exception java.sql.SQLException: Io exception: Software caused connection abort: socket write error at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:334) at oracle.jdbc.ttc7.TTC7Protocol.handleIOException(TTC7Protocol.java:3678) at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1999) at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:1144) at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2152) at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:2035) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2876) at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:609) at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:46) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2275) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2688) at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:79) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167) at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027) at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:304) at org.sw.website.actions.content.AddComment.performAction(AddComment.java:60) ... </code></pre> <p>If I need to give more info pleas ask. Everything works until the dreaded limit is exceeded.</p>
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      1. POHibernate > CLOB > Oracle :(
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    1. COthe exception doesn't seem related to the CLOB. Does the exception occur when you remove the CLOB?
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    2. COYes, and it only occurs if the size is over 4000
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    3. COThis morning the exception is different. It is the more often reported java.sql.SQLException: No more data to read from socket at oracle.jdbc.dbaccess ...
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