I have following code, which sometimes stores values in the database perfectly but sometimes it truncates some part of the textarea input field content coming through request parameter. It does not save the complete string given by user in textarea. This problem is occuring for 5% of the users in our production application. Can anybody please help me understand what exactly can be wrong ?
Code given has only the functions that are related to the saving part.

CODE GETTING THE VALUES FROM REQUEST.
GoalItemDAO gDAO = new GoalItemDAO();
goalItem.setGoal_Desc(request.getParameter("txtDelivDesc"));
goalItem.setMeasure(request.getParameter("txtMeasure"));
if(request.getParameter("txtSelfAssist") != null)
goalItem.setSelf_Assesment(request.getParameter("txtSelfAssist"));
if(request.getParameter("textfield") != null)
goalItem.setAL_Comment(request.getParameter("textfield"));
gDAO.saveGoalItem(goalItem);


METHOD IN LAST LINE in ABOVE PART OF CODE
public GoalItem saveGoalItem(GoalItem t)
throws DAOException
{
log.debug("Entering METHOD : saveGoalItem(GoalItem)");
GoalItem oGoalItem = getGoalItem(t.getId());
if(oGoalItem == null)
storeObj(t);
else
updateObj(t);
return (GoalItem)retrieveObj(com.ge.corporate.lpapp.business.deliverables.GoalItem.class, t.getId());
}


MAIN UPDATE METHOD USED IN ABOVE CODE
protected void updateObj(Object obj)
throws DAOException
{
try
{
Session session = HibernateSession.currentSession();
session.update(obj);
session.flush();
session.connection().commit();
log.debug("METHOD : updateObj(Object obj)---> Successful execution");
}
catch(HibernateException he)
{
log.debug(" METHOD : updateObj(Object obj)---> failure");
rollback();
log.error(he);
throw new DAOException(he);
}
catch(SQLException sqle)
{
log.debug(" METHOD : updateObj(Object obj)---> failure");
rollback();
log.error(sqle);
throw new DAOException(sqle);
}
finally
{
closeSession();
}
}

Forgot to give the xml mapping to tables

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class name="com.ge.corporate.lpapp.business.deliverables.GoalItem" table="T_APPR_DELV">
<composite-id name="id" class="com.ge.corporate.lpapp.business.deliverables.Delv" unsaved-value="any">
<key-property name="ROT_ID" type="long" column="ROT_ID"/>
<key-property name="PHASE_NO" type="int" column="PHASE_NO"/>
<key-property name="DELV_ID" type="long" column="DELV_ID"/>
</composite-id>
<property name="Goal_Desc" column="DELV_DESC" type="string" length="1000" not-null="false" />
<property name="Measure" column="MEASURE_TEXT" type="string" length="1000" not-null="false" />
<property name="Due_Date" column="DUE_DATE" type="date" not-null="false" />
<property name="Self_Assesment" column="SELF_ASST" type="string" length="1000" not-null="false" />
<property name="AL_Comment" column="AL_COMMENT" type="string" length="1000" not-null="false" />
<property name="AL_Rank" column="RANK_ID" type="integer" length="1" not-null="false" />
<property name="Member_Rank" column="MEMBER_RANK" type="integer" length="1" not-null="false" />
</class>
</hibernate-mapping>

Do I need to use 'select-before-update="true"' to fix this problem - but I am not able to test it - since it is not occuring on development machine. it occurs only on production machine which has restricted access.

Probably the database field is just to short?

no - the database field is having enough char limit. The functionality works perfect for 95% users to the fullest character limit. but for 5% users it does not work that way - it saves only few words - there is no special character in the input.