Yes,I config the parameter follow your mentioned.

but I caught such exception :
-----------------------------------------------------------------------------------------------------------------------------------------
This is My config file:
<PersistenceManager class="
org.apache.jackrabbit.core.state.db.SimpleDbPersistenceManager">
         <param name="driver" value="com.mysql.jdbc.Driver"/>
         <param name="url"
value="jdbc:mysql://localhost:3306/dbname?autoReconnect=true"/>
         <param name="user" value=""/>
         <param name="password" value=""/>
         <param name="schema" value="mysql"/>
<param name="schemaObjectPrefix" value="${wsp.name}_"/>
         <param name="externalBlobs" value="true"/>
       </PersistenceManager>
------------------------------------------------------------------------------------------------------------------------------------------
java.net.SocketException
MESSAGE: Broken pipe
STACKTRACE:
java.net.SocketException: Broken pipe
   at java.net.SocketOutputStream.socketWrite0(Native Method)
   at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
   at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
   at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java
:65)
   at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
   at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2637)
   at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1554)
   at com.mysql.jdbc.ServerPreparedStatement.serverExecute(
ServerPreparedStatement.java:1169)
   at com.mysql.jdbc.ServerPreparedStatement.executeInternal(
ServerPreparedStatement.java:693)
   at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:794)
   at org.apache.jackrabbit.core.state.db.DatabasePersistenceManager.exists
(DatabasePersistenceManager.java:713)
   at
org.apache.jackrabbit.core.state.SharedItemStateManager.hasNonVirtualItemState
(SharedItemStateManager.java:878)
   at org.apache.jackrabbit.core.state.SharedItemStateManager.hasItemState(
SharedItemStateManager.java:269)
   at
org.apache.jackrabbit.core.version.VersionItemStateProvider.hasItemState(
VersionItemStateProvider.java:139)
   at org.apache.jackrabbit.core.state.SharedItemStateManager.hasItemState(
SharedItemStateManager.java:274)
   at org.apache.jackrabbit.core.state.LocalItemStateManager.hasItemState(
LocalItemStateManager.java:179)
   at org.apache.jackrabbit.core.state.XAItemStateManager.hasItemState(
XAItemStateManager.java:262)
   at org.apache.jackrabbit.core.state.SessionItemStateManager.getItemState
(SessionItemStateManager.java:161)
   at org.apache.jackrabbit.core.ItemManager.createItemInstance(
ItemManager.java:461)
   at org.apache.jackrabbit.core.ItemManager.getItem(ItemManager.java:319)
   at org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2416)
   at com.hongrui.weekee.operation.impl.QueryOperationImpl.getVideoRingData
(QueryOperationImpl.java:1779)
   at com.hongrui.weekee.service.impl.QueryServiceImpl.getVideoRingData(
QueryServiceImpl.java:464)
   at sun.reflect.GeneratedMethodAccessor100.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(
DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java
:230)
   at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1244)
   at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(
ContinuationInterpreter.java:1134)
   at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(
ContinuationInterpreter.java:190)
   at
org.mozilla.javascript.continuations.ContinuationInterpreter.interpret(
ContinuationInterpreter.java:138)
   at org.mozilla.javascript.continuations.InterpretedFunctionImpl.call(
InterpretedFunctionImpl.java:121)
   at org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1244)
   at
org.apache.cocoon.components.flow.javascript.fom.FOM_JavaScriptInterpreter.callFunction
(FOM_JavaScriptInterpreter.java:758)
   at
org.apache.cocoon.components.treeprocessor.sitemap.CallFunctionNode.invoke(
CallFunctionNode.java:138)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:46)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke
(PreparableMatchNode.java:130)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:68)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(
PipelineNode.java:142)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:68)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(
PipelinesNode.java:92)
   at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(
ConcreteTreeProcessor.java:234)
   at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(
ConcreteTreeProcessor.java:176)
   at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(
TreeProcessor.java:248)
   at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(
MountNode.java:117)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:46)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke
(PreparableMatchNode.java:130)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:68)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(
PipelineNode.java:142)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:68)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(
PipelinesNode.java:92)
   at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(
ConcreteTreeProcessor.java:234)
   at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(
ConcreteTreeProcessor.java:176)
   at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(
TreeProcessor.java:248)
   at org.apache.cocoon.components.treeprocessor.sitemap.MountNode.invoke(
MountNode.java:117)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:46)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PreparableMatchNode.invoke
(PreparableMatchNode.java:130)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:68)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(
PipelineNode.java:142)
   at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes
(AbstractParentProcessingNode.java:68)
   at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(
PipelinesNode.java:92)
   at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(
ConcreteTreeProcessor.java:234)
   at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(
ConcreteTreeProcessor.java:176)
   at org.apache.cocoon.components.treeprocessor.TreeProcessor.process(
TreeProcessor.java:248)
   at org.apache.cocoon.Cocoon.process(Cocoon.java:679)
   at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java
:1154)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
   at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java
:445)
   at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java
:356)
   at org.mortbay.jetty.security.SecurityHandler.handle(
SecurityHandler.java:179)
   at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java
:226)
   at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java
:627)
   at org.mortbay.jetty.handler.ContextHandlerCollection.handle(
ContextHandlerCollection.java:149)
   at org.mortbay.jetty.handler.HandlerCollection.handle(
HandlerCollection.java:123)
   at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java
:141)
   at org.mortbay.jetty.Server.handle(Server.java:269)
   at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java
:430)
   at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(
HttpConnection.java:687)
   at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:492)
   at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:199)
   at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:339)
   at org.mortbay.jetty.nio.HttpChannelEndPoint.run(
HttpChannelEndPoint.java:270)
   at org.mortbay.thread.BoundedThreadPool$PoolThread.run(
BoundedThreadPool.java:475)

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