Question on query causing timeouts and CXpacket

Hello,
I am using SQL Server 2008 R2 SE with 24 processors as shown below:
This is a standalone non clustered server. The MAXDOP setting is 8 as shown below:
These settings have been the same for more than an year. But since last week I am noticing that query is taking longer time to execute and complaining on 94% wait time is on CXPACKET. Does this necessarily mean the MAXDOP setting has to be changed?
I added a few indexes for this query and CXPacket is gone but the indexes are causing failures somewhere else. As soon as the indexes were disabled these failures are gone.
Experts I need your valuable thoughts on this. Thanks a bunch.

Hello,
But since last week I am noticing that query is taking longer time to execute and complaining on 94% wait time is on CXPACKET. Does this necessarily mean the MAXDOP setting has to be changed?
I would think not at this moment (though that's just a guess right now). Is this a problem with just a single query, a few, all, etc? The first step I would take (against CXPACKET waits on a query) is to check out the execution plan and verify that statistics
skew isn't causing a problem with work divisions per thread. To do this, find the parallelism operators (press f4 to show details in SSMS) and investigate the threads and the amount of rows each processed. If it is skewed on some threads that could be participating
in the issue you are having. Let's start checking here and see what the result is.
You could also get the execution plan and upload it somewhere for us to look at.
Sean Gallardy | Blog
MCM 2008
MCSM:Data Platform Charter Member

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Hi All,
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       143 gc buffer busy                                                   WAITING
       147 db file sequential read                                          WAITING
       222 Streams AQ: qmn slave idle wait                                  WAITING
       266 gc buffer busy                                                   WAITING
       280 gc buffer busy                                                   WAITING
       314 gc cr request                                                    WAITING
       317 gc buffer busy                                                   WAITING
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       428 gc buffer busy                                                   WAITING
       471 gc buffer busy                                                   WAITING
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       528 rdbms ipc message                                                WAITING
       532 rdbms ipc message                                                WAITING
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       538 rdbms ipc message                                                WAITING
       539 rdbms ipc message                                                WAITING
       540 rdbms ipc message                                                WAITING
       541 smon timer                                                       WAITING
       542 rdbms ipc message                                                WAITING
       543 rdbms ipc message                                                WAITING
       544 rdbms ipc message                                                WAITING
       545 rdbms ipc message                                                WAITING
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Edited by: YasserRACDBA on Nov 17, 2009 3:39 PM
Did syntax allignment.

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public class ApplicationSessionExpiryFilter implements Filter {
    private FilterConfig _filterConfig = null;
    public void init(FilterConfig filterConfig) throws ServletException {
        _filterConfig = filterConfig;
    public void destroy() {
        _filterConfig = null;
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        String requestedSession =   ((HttpServletRequest)request).getRequestedSessionId();
        String currentWebSession = ((HttpServletRequest)request).getSession().getId();
        boolean sessionOk = currentWebSession.equalsIgnoreCase(requestedSession);
        // if the requested session is null then this is the first application
        // request and "false" is acceptable
        if (!sessionOk && requestedSession != null){
            // the session has expired or renewed. Redirect request
            ((HttpServletResponse) response).sendRedirect(_filterConfig.getInitParameter("SessionTimeoutRedirect"));
        else{
            chain.doFilter(request, response);
}Mar 30, 2009 9:38:04 AM oracle.security.jazn.oc4j.RealmUserAdaptor isMemberOf
FINE: JAAS-OC4J: Membership check for group: ISDBS_USER failed for user: anonymous
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option debug = true
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option log level = log all
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option logger class = null
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option data_source_name = jdbc/elearnDS
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option user table = TBL_LOGIN
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option roles table = XREF_LOGIN_ROLE
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option username column = LOGIN_NM
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option password column = PASSWORD
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option roles column = ROLE_NM
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option user pk column = LOGIN_NM
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option roles fk column = LOGIN_NM
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option password encoding class = oracle.sample.dbloginmodule.util.DBLoginModuleClearTextEncoder
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option realm_column = null
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] option application_realm = null
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] login called on DBTableLoginModule
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] Calling callbackhandler ...
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] Username returned by callback = null
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] User query string: select LOGIN_NM,PASSWORD, LOGIN_ATTEMPTS, ACTIVE_IND from TBL_LOGIN where lower(LOGIN_NM)= lower((?))
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] Logon Successful = false
09/03/30 09:38:04 [DBTableOraDatasourceLoginModule] Abort called on LoginModule
Mar 30, 2009 9:38:04 AM oracle.security.jazn.oc4j.OC4JUtil doJAASLogin
WARNING: Login Failure: all modules ignored
javax.security.auth.login.LoginException: Login Failure: all modules ignored
     at javax.security.auth.login.LoginContext.invoke(LoginContext.java:921)
     at javax.security.auth.login.LoginContext.access$000(LoginContext.java:186)
     at javax.security.auth.login.LoginContext$4.run(LoginContext.java:683)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
     at javax.security.auth.login.LoginContext.login(LoginContext.java:579)
     at oracle.security.jazn.oc4j.OC4JUtil.doJAASLogin(OC4JUtil.java:241)
     at oracle.security.jazn.oc4j.GenericUser$1.run(JAZNUserManager.java:818)
     at oracle.security.jazn.oc4j.OC4JUtil.doWithJAZNClsLdr(OC4JUtil.java:173)
     at oracle.security.jazn.oc4j.GenericUser.authenticate(JAZNUserManager.java:814)
     at oracle.security.jazn.oc4j.FilterUser.authenticate(JAZNUserManager.java:1143)
     at com.evermind.server.http.EvermindHttpServletRequest.checkAndSetRemoteUser(EvermindHttpServletRequest.java:3760)
     at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:706)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
     at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)
Mar 30, 2009 9:38:04 AM oracle.security.jazn.oc4j.GenericUser authenticate
FINE: JAAS-OC4J: Authentication failure for user: null
Mar 30, 2009 9:38:04 AM oracle.security.jazn.oc4j.RealmUserAdaptor isMemberOf
FINE: JAAS-OC4J: Membership check for group: ISDBS_USER failed for user: anonymous

I added an HttpSessionListener upon login here's what I get:
09/03/31 08:21:25 Inside sessionCreated
09/03/31 08:21:25 Before New session createb = 0
09/03/31 08:21:25 Created session id: 854b4b95cf28ceb065d0489a31ee79c19feabb80716f6d828b77fc7044b210bf
09/03/31 08:21:25 After New session count = 1
At session timeout here's what I get:
09/03/31 08:23:27 Count before destroyed = 1
09/03/31 08:23:27 Destroyed session id: 854b4b95cf28ceb065d0489a31ee79c19feabb80716f6d828b77fc7044b210bf
09/03/31 08:23:27 Count after destroyed = 0
09/03/31 08:23:27 Inside sessionCreated
09/03/31 08:23:27 Before New session createb = 0
09/03/31 08:23:27 Created session id: 854b4b95cf28ceb065d0489a31ee79c19feabb80716f6d828b77fc7044b210bf
09/03/31 08:23:27 After New session count = 1
Notice that the session Id in each case is IDENTICAL. That is why the Filter code isn't doing what it is intended to do. Whay is the same session ID being created after it is destroyed? Is there a configuration parameter that controls it?
Thanks,
Dave

How can I fix consistent TCP timeout and make data flow simpler?

Hi!
I'm acquiring data from a Scanivalve Digital Scanning Array through a TCP/IP connection. I'm having problems with the connection timing out regularly. It will run fine if you take data several times in a row, but if the VI sits for several minutes (while looking at previous data runs or adjusting test setup) the connection will timeout the next time you try to take data. The subVIs (reading the tcp connection, processing the data pakcet, etc) were provided by the manufacturer several years ago. The midlevel VI were written by another engineer, and I adapted them to run with the top level VI that I needed for this test. The data flow in the VIs are convoluted and while I can follow the ones t
hat I wrote, I'm not sure how to troubleshoot the others.
I posted a question on an unrelated problem and the responses mentioned that race conditions were going to be a problem b/c of all of the global variables.
Please be patient with my lack of knowledge in some areas. Any help would be appreciated.
Thanks so much!
-Sarah
Engineering intern
Techsburg, Inc.
Attachments:
DSA_Acquistion_VIs.zip ‏253 KB

I'm not positive about the best solution in this situation, but there is lots of information available regarding error 56 when using TCP/IP communication.
You might find some of these useful:
Error 56 Occurred at TCP Open: Windows XP Fails as TCP/IP Server with LabVIEW 6.1.
Error 56 Occurs When Using TCP Listen.vi
TCP/IP Error Codes and Related Time-out Issues in LabVIEW

Passing parameters for a query throught XML and capturing response in the same

Hi All,
I have defined a RequestParameters object and i am passing paramerts for a query through XML and trying to capture the result in the same and send back to the source. In this case i am send XML from excel.
Below is my XML format.
<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Insert xmlns="http://tempuri.org/">
<dataContractValue>
<dsRequest>
<dsRequest>
<SOURCE></SOURCE>
<ACTION>Insert</ACTION>
<RequestParams>
<RequestParams>
<ACC_NO>52451</ACC_NO>
<EMP_CITY>HYD</EMP_CITY>
<EMP_NAME>RAKESH</EMP_NAME>
<EMP_CONTACT>99664</EMP_CONTACT>
<EMP_JOM>NOV</EMP_JOM>
<EMP_SALARY>12345</EMP_SALARY>
</RequestParams>
<RequestParams>
<ACC_NO>52452</ACC_NO>
<EMP_CITY>HYD</EMP_CITY>
<EMP_NAME>RAKESH</EMP_NAME>
<EMP_CONTACT>99664</EMP_CONTACT>
<EMP_JOM>NOV</EMP_JOM>
<EMP_SALARY>12345</EMP_SALARY>
</RequestParams>
</RequestParams>
</dsRequest>
<dsRequest>
<SOURCE></SOURCE>
<ACTION>Update</ACTION>
<RequestParams>
<RequestParams>
<ACC_NO>52449</ACC_NO>
<EMP_CITY>HYD1</EMP_CITY>
<EMP_NAME>RAKESH1</EMP_NAME>
<EMP_SALARY>1345</EMP_SALARY>
</RequestParams>
<RequestParams>
<ACC_NO>52450</ACC_NO>
<EMP_CITY>HYDer</EMP_CITY>
<EMP_NAME>RAKEH</EMP_NAME>
<EMP_SALARY>1235</EMP_SALARY>
</RequestParams>
</RequestParams>
</dsRequest>
</dsRequest>
</dataContractValue>
</Insert>
</s:Body>
</s:Envelope>
Where i have a List of dsRequest and RequestParams, where i can send any number of requests for Insert,Update. I have two a XML element defined in RequestParams "RowsEffected","error" where the result will be caputred and is updated
to the response XML.
I have 6 defined in RequestParams
EMP_SALARY(int),ACC_NO(int),EMP_CITY(string),EMP_NAME(string),EMP_CONTACT(string),EMP_JOM(string)
My Question is:
When i am trying to build response XML with the following code, the parameters which are not given in the Request XML are also appearing in the Response.
                ResponseParams.Add(
newdsResponse()
                    ACTION = OriginalParams[a].ACTION,
                    SOURCE = OriginalParams[a].SOURCE,
                    Manager = OriginalParams[a].Manager,
                    RequestParams = OriginalParams[a].RequestParams
Where the OriginalParams is dsRequest
Ex: In my update query i will only send three parameters, but in my response building with ablove code, i am getting all the variables defined as INT in the RequestParameters.
Is there any way i can avoid this and build response with only the parameters given in the Request ??
Appreciate ur help..Thanks
Cronsey.

Hi Kristin,
My project is, User will be giving the parameters in the excel, and using VBA, the values are captured and an XML is created in the above mentioned format and is send to web service for the Insert/Update.
I created a webservice which reads the values from <datacontract> and it consist of list of <dsRequests> where any number of Insert/Upate commands can be executed, with in which it contains a list of <RequestParams> for multiple insertion/Updation.
//function call
OriginalParams = generator.Function(query, OriginalParams);
where OriginalParams is List<dsRequest>
//inside function
command.Parameters.Add()// parameters adding
int
val = command.ExecuteNonQuery();
after the execution,an XML element is added for the response part.and it is looped for all the RequestParams.
OriginalParams[i].Result.Add(
newResult()
{ ERROR = "No Error",
ROWS_EFFECTEFD = 1 });
//once all the execution is done the response building part
for(inta
= 0; a < OriginalParams.Count; a++)
                ResponseParams.Add(
newdsResponse()
                  Result = OriginalParams[a].Result
QUEST: When i am trying to build response XML with the following code, the parameters which are not given in the Request XML are also appearing in the Response.
Ex: In my update query i will only send three parameters, but in my response building with ablove code, i am getting all the variables defined as INT in the RequestParameters.
Is there any way i can avoid this and build response with only the parameters given in the Request ??
Appreciate ur help..Thanks
Cronsey.

Query for PO and GPRO

Hi guys. I am relatively new to SAP Business with less than one month experience handling this software. I was given a task by my superior last week, whereby I was asked to create a query that will enable both PO and GRPO "combine" together, thus enabling my colleagues to skip the tradition manual way of doing things.
I have tried a first code which I manage to combine both PO and GRPO. However, there is this problem whereby should I link it via the coding I have done, both specific PO and GRPO must exist on the database for it to be listed out on the query (Should PO is present but GRPO is not, then it do not appear on the query). Below is the code that I have done:
SELECT T0.[DocNum] as 'PO No.', T0.[DocDate], T0.[DocStatus], T0.[CardName] as 'Supplier', T1.[ItemCode], T1.[Quantity], T1.[Price], T1.[LineTotal] as 'Total Amount', T1.[U_Ship_ETA] as ' Expected Arrival Date',T2.[WhsCode], T2.[OrderedQty], T2.[DelivrdQty], T3.[DocNum] as 'GRPO No.' FROM OPOR T0 INNER JOIN POR1 T1 ON T0.DocEntry = T1.DocEntry INNER JOIN PDN1 T2 ON T1.DocEntry = T2.BaseEntry AND T1.LineNum = T2.BaseLine INNER JOIN OPDN T3 ON T2.DocEntry = T3.DocEntry WHERE T1.[U_Ship_ETA] >= [%0] AND T2.[WhsCode] = 'PE-PG'
The entire purpose of this assignment is to create a query that will facilitate the work of my colleague in HQ and warehouse. This specific person in HQ should be able to key in the PO then followed by another person on warehouse aware of the supply arrival date (expected) and to fill up the GRPO. The coding above, require both PO and GRPO to be present at the same time, which resulting in my colleague at warehouse unaware of the expected arrival date from PO.
Edited by: AlexAkane on Oct 27, 2009 10:17 AM

Second question:
Due to this, I have recreated two different query. One query on PO and another on GRPO. Below are the coding for both,
GRPO Tracking
SELECT T0.[DocNum] as 'GRPO', T0.[DocStatus], T0.[DocDate], T0.[CardName] as 'Supplier',T1.[ItemCode], T1.[OrderedQty] as 'Ordered Quantity', T1.[DelivrdQty] as 'Delivered Quantity' , T1.[OpenQty] 'Remaining Open Quantity',T1.[WhsCode], T1.[U_Job_No] FROM OPDN T0 INNER JOIN PDN1 T1 ON T0.DocEntry = T1.DocEntry WHERE T1.[WhsCode] =[%0] ORDER BY T0.[CardName]
PO Tracking
SELECT T0.[DocNum] as 'PO Number', T0.[DocDate], T0.[DocStatus], T0.[CardName] as 'Supplier', T1.[ItemCode], T1.[Quantity] as 'Ordered Quantity', T1.[Price] as 'Price Per Unit', T1.[LineTotal] as 'Total Amount' , T1.[WhsCode], T1.[U_Ship_ETA] as 'Expected Arrival Date' FROM OPOR T0 INNER JOIN POR1 T1 ON T0.DocEntry = T1.DocEntry WHERE T1.[WhsCode] =[%0]
I would like to know, is it possible to join into a single table? Example- A and B . Join become AB.
Sorry for this long post. I just don't know how to put in simpler words :). And I would appreciate any help or advice.
Thank You !
Regards,
Alex
Edited by: AlexAkane on Oct 27, 2009 10:16 AM

Discoverer 4i: GL Query caused no data to be received

Hi,
E-Business 11.5.10.2 on Windows Server 2003 SP2
Discoverer 4i
I've set up Discoverer 4i and am currently using Discoverer Desktop to query the business areas. I can retrieve data from any business area apart from GL.
When I attempt to query GL I get an error message stating 'Query caused no data to be received'.
Has anyone encountered this before? Any help greatly appreciated.
Thanks,
Mark

Hi,
It could be that these GL folders use row level security and the gl_security_pkg is not initialized.
Try creating a custom folder containing:
select gl_security_pkg.login_sob_id from dualLog in with the UK GL User responsibility and create a workbook based on this custom folder. If this returns a null row then the GL package is not properly initialized. Check that the "GL Set of Books ID" system profile is set for the responsibility. You can initilalize the package manually by adding the following text into the the "Initialization SQL Statement - Custom" system profile for the responsibility:
begin
gl_security_pkg.init;
end;Hope that helps,
Rod West

FRM 40350: Query Caused no records to be retrieved in INVTVTXN

Dear All,
When Trying to View the Material Distributions for the Transaction Type Sales Order Issue. I am unable to get the accounting entries for the Transaction. On selecting the form the error shows :
FRM 40350: Query Caused no records to be retrieved
Please help
Thanks
Dinesh

Ensure that the cost manager is running (Inventory -> Setup -> Transactions -> InterfaceManager )...and ensure that you are giving the correct date range.
normally you should be able to see distributions as Inv valuation Cr and Deferred Cost of Goods Sold Dr ...
Some times Cost Manager shows as Active but it does not process transaction records, take help from your system administrator/ DBA to get cost manager restarted.
Thanks,
Hrishikesh

Question on query causing timeouts and CXpacket

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