Oracle Managed Data Provider 12.1.0.2 performs significantly worse than classic ODP on Connection.Open (3 secs vs 0.2 secs)

Oracle Managed Provider has many advantages over the classic Oracle Data Provider for .net.
However, our test show that connection.open take 3 seconds, where the classic ODP takes 0.2 seonds. Subsequent opens against the same connectionstring perform similarly for the two (0.1 seconds). Subsequest opens against a new connectionstring (another database) take 2 seconds for the managed provider and 0.1 seconds for classic.
This is not acceptable in some cases, but may be acceptable in others.
Has anyone seem similar behavior? Any suggestions that can improve connection.open performance?
Regards Niels Jespersen

Hi Alex
Thanks for helping out. I use simple username/password in the connectionstring: con.ConnectionString = "User Id=opslag;Password=xxxxxxxx;Data Source=DB_DST;";
Tracing gives me a tracefile of about 200 KB, which I will not quote here in its entirety. However, I can see that time spent is mostly spent around the snippet quoted below, if that reveals anything important. I will be happy to share the full trace-file and the source of the program. Please let me know.
Regards Niels
2015-01-23 12:55:54.998286 TID:1   (CFG) (SQLNET)   FilePath : O:\OraXP\TNS-Admin\sqlnet.ora
2015-01-23 12:55:54.998286 TID:1   (CFG) (TNSNAMES) FilePath : O:\OraXP\TNS-Admin\tnsnames.ora
2015-01-23 12:55:54.999286 TID:1   (PUB) (ENT) OracleConnection.ctor()
2015-01-23 12:55:54.999286 TID:1   (PUB) (EXT) OracleConnection.ctor()
2015-01-23 12:55:55.005287 TID:1   (PRI) (ENT) (CP) ConnectionString.GetCS()
2015-01-23 12:55:55.009287 TID:1   (PRI) (ENT) (CP) ConnectionString.ctor()
2015-01-23 12:55:55.020288 TID:1   (PRI) (ENT) (CP) ConnectionString.Parse()
2015-01-23 12:55:55.031289 TID:1   (PRI) (ENT) (CP) ConnectionString.SetProperty()
2015-01-23 12:55:55.031289 TID:1   (PRI) (EXT) (CP) ConnectionString.SetProperty()
2015-01-23 12:55:55.031289 TID:1   (PRI) (ENT) (CP) ConnectionString.SetProperty()
2015-01-23 12:55:55.031289 TID:1   (PRI) (EXT) (CP) ConnectionString.SetProperty()
2015-01-23 12:55:55.031289 TID:1   (PRI) (ENT) (CP) ConnectionString.SetProperty()
2015-01-23 12:55:55.031289 TID:1   (PRI) (EXT) (CP) ConnectionString.SetProperty()
2015-01-23 12:55:55.031289 TID:1   (PRI) (EXT) (CP) ConnectionString.Parse()
2015-01-23 12:55:55.032289 TID:1   (PRI) (EXT) (CP) ConnectionString.ctor()
2015-01-23 12:55:55.032289 TID:1   (PRI) (EXT) (CP) ConnectionString.GetCS()
2015-01-23 12:55:55.055292 TID:1   (PUB) (ENT) OracleConnection.Open() (conid=65204782) (state=Closed) (sessid=0) (implid=0) (pooling=T) (txnid=n/a)
2015-01-23 12:55:55.060292 TID:1   (PRI) (ENT) (CP) OracleConnectionDispenser`3..cctor()
2015-01-23 12:55:55.061292 TID:1   (PRI) (EXT) (CP) OracleConnectionDispenser`3..cctor()
2015-01-23 12:55:55.061292 TID:1   (PRI) (ENT) (CP) OracleConnectionDispenser`3.Get()
2015-01-23 12:55:55.066293 TID:1   (PRI) (ENT) (CP) PoolManager`3.ctor()
2015-01-23 12:55:55.066293 TID:1   (PRI) (EXT) (CP) PoolManager`3.ctor()
2015-01-23 12:55:55.071293 TID:1   (PRI) (ENT) (CP) PoolManager`3.Initialize() (constr=User Id=opslag;Data Source=DB_DST;)
2015-01-23 12:55:55.073293 TID:1   (PRI) (ENT) (CP) ConnectionString.Secure()
2015-01-23 12:55:55.073293 TID:1   (PRI) (EXT) (CP) ConnectionString.Secure()
2015-01-23 12:55:57.662552 TID:1   (PRI) (EXT) (CP) PoolManager`3.Initialize() (pmid=56680499) (constr=User Id=opslag;Data Source=DB_DST;)
2015-01-23 12:55:57.664552 TID:1   (PRI) (BUF) (OBP.CTOR) (poolid:40362448) (OracleConnectionDispenser`3.GetPM)
2015-01-23 12:55:57.676554 TID:1   (PRI) (ENT) (CP) OraclePoolManager.Get()
2015-01-23 12:55:57.704556 TID:1   (PRI) (ENT) (CP) PoolManager`3.Get() (txnid=n/a) (bForceMatch=F)
2015-01-23 12:55:57.710557 TID:1   (PRI) (ENT) (CP) PoolManager`3.CreateNewPR() (txnid=n/a)
2015-01-23 12:55:57.922578 TID:1   (PRI) (ENT) TimeStamp.GetLocalTZOffset()
2015-01-23 12:55:57.922578 TID:1   (PRI) (EXT) TimeStamp.GetLocalTZOffset()
2015-01-23 12:55:57.932579 TID:1   (PRI) (ENT) (CP) ConnectionString.GetStringFromSecureString()

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Background
1. Weblogic 10.3.6.0 running on Oracle Linux 6.5 with Oracle JRockit(R) (build R28.2.3-13-149708-1.6.0_31-20120327-1523-linux-x86_64, compiled mode)
2. Oracle Apex 4.2.1
3. Apex Listener 1.1.3
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Apex Applications and RESTful services are running fine.
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Error message in SQL Developer - Cannot connect to DEV. HTTP/1.1 403 Target service not allowed
Additional Information
Steps followed -
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as per Oracle SQL Developer User's Guide Release 4.0
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Enter the name of the database server [localhost]:dbservername
Enter the database listen port [1521]:
Enter 1 to specify the database service name, or 2 to specify the database SID [1]:1
Enter the database service name:dbservicename
Enter the database user name [APEX_PUBLIC_USER]:
Enter the database password for APEX_PUBLIC_USER:
Confirm password:
Enter 1 to enter passwords for the RESTful Services database users (APEX_LISTENER,APEX_REST_PUBLIC_USER), 2 to use the same password as used for APEX_PUBLIC_USER or, 3 to skip this step [1]:2
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Enter a password for user adminlistener:
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<entry key="apex.security.developer.roles">OAuth2 Client Developer, SQL Developer</entry>
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Username adminlistener
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Hostname weblogicservername
Port 7250
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Username adminlistener
Password passwordsuppliedabove in step 6
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Further to the above post, I thought I'd simplify my Apex Listener install just to see if I can connect to it via SQL Developer
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Operating system : Window 7 Pro 64 bit
Oracle Apex Listener 2.0.8
Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)
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INFO: Error: ORA-02291: integrity constraint (APEX_040200.WWV_FLOW_RT$APPROVALS_SGID_FK) violated - parent key not found, occurred during execution of: [CALL, insert into wwv_flow_rt$approvals (user_name,status,client_id,security_group_id,created_by,created_on,updated_by,updated_on) values(/*in:user_id*/?,/*in:status*/?,/*in:client_id*/?,/*in:tenant_id*/?,upper(/*in:user_id*/?),/*in:created*/?,upper(/*in:user_id*/?),/*in:created*/?), [tenant_id, in, class java.math.BigInteger], [client_id, in, class java.math.BigInteger], [user_id, in, class java.lang.String], [status, in, class oracle.dbtools.rt.oauth.ApprovalRequest$Status], [created, in, class java.sql.Timestamp]]with values: [adminlistener, APPROVED, 3858401374580004, -1, adminlistener, 2014-06-23 12:19:18.785, adminlistener, 2014-06-23 12:19:18.785]
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Cannot connect to DEV.
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<pre>Request Path passes syntax validation
Mapping request to database pool: PoolMap [_failed=false, _lastUpdate=-1, _pattern=null, _poolName=apex, _regex=null, _type=REGEX, _workspaceIdentifier=null, _serviceName=null]
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Attempting to process as a RESTful Service
Choosing: oracle.dbtools.rt.oauth.TokenHandler as current candidate with score: Score [handle=null, score=0, scope=SecurityConfig [constraint=secure, realm=OAUTH_CLIENT, logonConfig=NONE], originsAllowed=[], corsEnabled=true]
Determining if request can be dispatched as a Tenanted RESTful Service
Request path has one path segment, continuing processing
No Tenant Principal established yet, continuing processing
APEX_LISTENER pool exists, continuing processing
No matching tenant found for: oauth2, cannot dispatch
Chose oracle.dbtools.rt.oauth.TokenHandler as the final candidate with score: Score [handle=null, score=0, scope=SecurityConfig [constraint=secure, realm=OAUTH_CLIENT, logonConfig=NONE], originsAllowed=[], corsEnabled=true] for: POST oauth2/token
oauth2/token authorized as: p6xycV-2QceFnFHkWyJlnA..
</pre>
</p>
<p>
<pre>WebException [statusCode=500]
at oracle.dbtools.rt.web.WebException.webException(WebException.java:343)
at oracle.dbtools.rt.web.WebException.internalError(WebException.java:262)
at oracle.dbtools.rt.oauth.jdbc.JDBCOAuthDataAccess.createApproval(JDBCOAuthDataAccess.java:514)
at oracle.dbtools.rt.oauth.jdbc.JDBCOAuthDataAccess.createApprovedRequest(JDBCOAuthDataAccess.java:181)
at oracle.dbtools.rt.oauth.OAuthAuthorization.resourceOwnerCredentials(OAuthAuthorization.java:654)
at oracle.dbtools.rt.oauth.OAuthAuthorization.tokenRequest(OAuthAuthorization.java:273)
at oracle.dbtools.rt.oauth.TokenHandler.post(TokenHandler.java:44)
at oracle.dbtools.rt.web.RequestHandler.response(RequestHandler.java:268)
at oracle.dbtools.rt.web.RequestHandler.dispatch(RequestHandler.java:361)
at oracle.dbtools.rt.web.RequestHandler.dispatch(RequestHandler.java:85)
at oracle.dbtools.rt.web.RequestDispatchers.dispatch(RequestDispatchers.java:93)
at oracle.dbtools.rt.web.ETags.checkPrecondition(ETags.java:93)
at oracle.dbtools.rt.web.HttpEndpointBase.restfulServices(HttpEndpointBase.java:426)
at oracle.dbtools.rt.web.HttpEndpointBase.service(HttpEndpointBase.java:164)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at com.sun.grizzly.http.servlet.ServletAdapter$FilterChainImpl.doFilter(ServletAdapter.java:1059)
at com.sun.grizzly.http.servlet.ServletAdapter$FilterChainImpl.invokeFilterChain(ServletAdapter.java:999)
at com.sun.grizzly.http.servlet.ServletAdapter.doService(ServletAdapter.java:434)
at oracle.dbtools.standalone.SecureServletAdapter.doService(SecureServletAdapter.java:91)
at com.sun.grizzly.http.servlet.ServletAdapter.service(ServletAdapter.java:379)
at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
at com.sun.grizzly.tcp.http11.GrizzlyAdapterChain.service(GrizzlyAdapterChain.java:196)
at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Unknown Source)
Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-02291: integrity constraint (APEX_040200.WWV_FLOW_RT$APPROVALS_SGID_FK) violated - parent key not found
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:505)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:223)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208)
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1046)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1336)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3612)
at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3713)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1378)
at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at oracle.ucp.jdbc.proxy.StatementProxyFactory.invoke(StatementProxyFactory.java:230)
at oracle.ucp.jdbc.proxy.PreparedStatementProxyFactory.invoke(PreparedStatementProxyFactory.java:124)
at com.sun.proxy.$Proxy44.execute(Unknown Source)
at oracle.dbtools.common.jdbc.JDBCInsert.execute(JDBCInsert.java:58)
at oracle.dbtools.rt.oauth.jdbc.JDBCOAuthDataAccess.createApproval(JDBCOAuthDataAccess.java:487)
... 34 more
</pre>
</p>
</div>
</div>
</div>
<div id="xFooterContainer">
</div>
</body>
</html>
I am assuming this must be part of the problem I am seeing this the Weblogic deployment in my original post.
Does anyone have any suggestions on how best to tackle this?
Regards,
Derek

Data provider internal error(-3000) during DataAdapter.Fill

I get this error sporadically.
From other messages on this forum, it seems others are having similar problems. It appears the Oracle staff
is still struggling to identify and fix (or did I miss a post?)
I hope the next release can include some more informative diagnostic error messages. (no judgment implied, just a suggestion).
But I need this to work, so I'm posting my
info as well in hopes it will help.
Sorry for the length, but I think all the detail may be needed to diagnose.
I have been using ODP.Net for weeks without trouble
until recently. I just added a CLOB field to my table yesterday, and
the problem started. I don't know whether that's cause or coincidence.
Possible workarounds I will try:
1) Explicit select of columns rather than select *
2) Retry once on failure after short delay
Below, I'm including the exception message from the ASP.Net page.
It occurs at the same spot in my code, but often
it works fine. Now, an hour later, I cannot repeat the problem.
I've edited the "Source Error" section to
provide more of the code, so you can see the full context.
I've also pasted the stored procedure called so you can see what that is about.
I need this to work, so feel free to contact me if you need further information
to diagnose this in order to fix it.
I go live on March 7, so if I don't get a fix soon and can't find
a workaround, I'll just make a lame error message like "Site is very busy, please try again".
Even though the site is NOT busy. But having them try again seems to work.
And I don't want to tell them why I'm asking them to try again <grin>.
I am thinking of putting a try/catch block and sleeping for a second and then trying one more
time in my code. I'll let you know if that is an effective work-around.
David Kreth Allen
University of Minnesota
Carlson School of Management
[email protected] remove XYZ to send emails
612-625-0386
<WebPageError>
Server Error in '/ScholarshipApplicationWeb' Application.
Data provider internal error(-3000)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: Oracle.DataAccess.Client.OracleException: Data provider internal error(-3000)
Source Error:
     OracleCommand cmd = new OracleCommand();
     cmd.Connection = new OracleConnection(
          ApplicationEnvironment.current.database.OracleConnectionString);
     cmd.CommandType = CommandType.StoredProcedure;
     cmd.CommandText = "pkg_batch.get_details";
     cmd.Parameters.Add("batch_id",OracleDbType.Int32,
          batchId,ParameterDirection.Input);
     cmd.Parameters.Add("batchCursor",OracleDbType.RefCursor,
          DBNull.Value,ParameterDirection.Output);
     cmd.Parameters.Add("majorsCursor",OracleDbType.RefCursor,
          DBNull.Value,ParameterDirection.Output);
     cmd.Parameters.Add("detailCursor",OracleDbType.RefCursor,
          DBNull.Value,ParameterDirection.Output);
     OracleDataAdapter da = new OracleDataAdapter(cmd);
     DataSet ds = new DataSet("batches");
     da.Fill(ds);
     DataTable dt = ds.Tables[0];
     dt.TableName = "batch";
Source File: C:\Projects\ScholarshipSolution\ScholarshipLibrary\Data\ScholarshipApplicationBatch.cs Line: 329
Stack Trace:
[OracleException: Data provider internal error(-3000)]
Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, IntPtr opsSqlCtx, Object src, String procedure, String[] args)
Oracle.DataAccess.Client.OracleDataReader.NextResult() +1259
System.Data.Common.DbDataAdapter.FillNextResult(IDataReader dataReader) +98
System.Data.Common.DbDataAdapter.FillFromReader(Object data, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) +261
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) +129
Oracle.DataAccess.Client.OracleDataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) +516
Oracle.DataAccess.Client.OracleDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +290
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) +38
CSOM.ScholarshipLibrary.Data.ScholarshipApplicationBatch.getDataById(Int32 batchId) in C:\Projects\ScholarshipSolution\ScholarshipLibrary\Data\ScholarshipApplicationBatch.cs:329
CSOM.ScholarshipLibrary.Data.ScholarshipApplicationBatch.GetById(Int32 batchId) in C:\Projects\ScholarshipSolution\ScholarshipLibrary\Data\ScholarshipApplicationBatch.cs:290
CSOM.ScholarshipApplicationWeb.BatchSummaryControl.Edit_Click(Object sender, CommandEventArgs e) in c:\inetpub\wwwroot\ScholarshipApplicationWeb\BatchSummaryControl.cs:68
System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +110
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +115
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +138
System.Web.UI.Page.ProcessRequestMain() +1244
Version Information: Microsoft .NET Framework Version:1.0.3705.288; ASP.NET Version:1.0.3705.288
</WebPageError>
<PackageBody>
PROCEDURE GET_DETAILS(
p_batch_id IN number,
batchCursor OUT pkg_batch.refcur,
majorsCursor OUT pkg_batch.refcur,
applicationsCursor OUT pkg_batch.refcur
IS
BEGIN
OPEN batchCursor FOR SELECT
* FROM scholarshipApplicationBatch
where scholarshipApplicationBatch_id = p_batch_id;
OPEN majorsCursor FOR SELECT
* FROM major_response
where batch_id = p_batch_id;
OPEN applicationsCursor FOR SELECT
* FROM schol_detail
where batch_id = p_batch_id;
END GET_DETAILS;
</PackageBody>

One workaround that seems to work is to retry in a loop.
Sample code is pasted below.
Obviously it may still fail, but less often.
I'll report any further changes that affect
the behavior in hopes it will assist the Oracle staff in
fixing it.
<CODE>
try
da.Fill(ds);
catch (OracleException excp)
     const int maxTrys = 5;
     int failureCount = 1;
     bool succeeded = false;
     for (int i = 0;i<maxTrys;i++)
          try
               System.Threading.Thread.Sleep(
                    TimeSpan.FromSeconds(1));
               ds.Clear();
               da.Fill(ds);
               i = maxTrys;
               succeeded = true;
          }//try
          catch
               failureCount ++;
     }//for
     errorHandler.Report(
          String.Format(
          "Failure in da.Fill in ScholAppBatch. " +
          " Failed {0} times. Finally Succeeded = {1}.",
                                        failureCount.ToString(),
     succeeded.ToString()),
          excp);
}//catch
</CODE>

Oracle Managed Data Provider 12.1.0.2 performs significantly worse than classic ODP on Connection.Open (3 secs vs 0.2 secs)

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