IDM 7.1.1 objchange query executing against DB 66K times an hour?!

Howdy folks,
We just upgraded from 7.0 to 7.1.1. One of my co-workers mentioned that they though it was running a little slower. We spoke to a DB about when stats were getting calculated etc on the database, and she started to look at what was running. Turns out we have a statement executing 66,000 times an hour.... Any idea why? It seems like there should be no reason to execute this frequently, and it is biting in to our database cpu cycles....
Here is the SQL if you are curious:
SELECT timestamp, id, version, changeType FROM objchange WHERE timestamp > :1 AND type=:2 ORDER BY timestamp;

Basil,
Thanks for taking the time to answer all of the questions! It saves a lot of back/forth. The bad news is that no specific thing comes to mind. The sort of degradation you see could be caused by one or more of:
o memory leaks (presumably not, because you're not running out)
o memory fragmentation -- possible, but hard to measure
o something odd going on in the DB cache -- nothing is obvious yet, but it's still being looked at.
You are using MVCC, which may help diagnose things. Have you ever run without MVCC? I assume you are not using snaphot transactions for updates (if so, you should not be doing that).
Have you tried looking at system/process information using tools like vmstat or top to detect anomalous VM and/or paging activity?
If you come up with any additional information, please post it.
Regards,
George

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com.transmachina.idiomatica.app.WebDictionaryManager.doLookup(WebDictionaryManager.java:39)
 at
com.transmachina.idiomatica.utils.WordSearch.lookupAndReturnMatches(WordSearch.java:374)
 at
com.transmachina.idiomatica.utils.WordSearch.getWordMatches(WordSearch.java:345)
 at
com.transmachina.idiomatica.utils.WordSearch.getMatchesWithPosTrimming(WordSearch.java:546)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.WordAmbiguity.setupWordAmbiguity(WordAmbiguity.java:98)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.TextAmbiguity.setupTextAmbiguity(TextAmbiguity.java:271)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.ParsedText.setupParsedText(ParsedText.java:141)
 at
com.transmachina.idiomatica.engine.presentation.Parser.parseToVectorOfWords(Parser.java:92)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getWord(Parser.java:377)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:193)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:158)
 at
com.transmachina.idiomatica.adminTool.frame.translation.FrameTranslation$5.run(FrameTranslation.java:231)

Hi Marc!
I think you are right! My database had been corrupted.
Thanks,
Nic.
Marc Prud'hommeaux wrote:
Nic-
Can you show us the code you use to build the query?
A casual look at the stack trace indicates that the problem might
actually be that you are using the in-class-name subclass identifier,
but there is a row in the database for which that column is null. Can
you check to see if this is the case?
In article <[email protected]>, Nic Cottrell wrote:
Hi!
I seem to get this error when passing a null param to query.execute().
Shouldn't I be able to do this?
Thanks,
Nic.
kodo.util.UserException: java.lang.NullPointerException
NestedThrowables:
java.lang.NullPointerException
 at kodo.query.AbstractQuery.executeWithMap(AbstractQuery.java:728)
 at kodo.query.AbstractQuery.executeWithArray(AbstractQuery.java:640)
 at kodo.query.AbstractQuery.execute(AbstractQuery.java:622)
 at com.transmachina.idiomatica.db.DbSession.get(DbSession.java:536)
 at
com.transmachina.idiomatica.app.WebDictionaryManager.hasBeenPreviouslyLookedUp(WebDictionaryManager.java:26)
 at
com.transmachina.idiomatica.app.WebDictionaryManager.doLookup(WebDictionaryManager.java:39)
 at
com.transmachina.idiomatica.utils.WordSearch.lookupAndReturnMatches(WordSearch.java:374)
 at
com.transmachina.idiomatica.utils.WordSearch.getWordMatches(WordSearch.java:345)
 at
com.transmachina.idiomatica.utils.WordSearch.getMatchesWithPosTrimming(WordSearch.java:546)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.WordAmbiguity.setupWordAmbiguity(WordAmbiguity.java:98)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.TextAmbiguity.setupTextAmbiguity(TextAmbiguity.java:271)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.ParsedText.setupParsedText(ParsedText.java:141)
 at
com.transmachina.idiomatica.engine.presentation.Parser.parseToVectorOfWords(Parser.java:92)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getWord(Parser.java:377)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:193)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:158)
 at
com.transmachina.idiomatica.adminTool.frame.translation.FrameTranslation$5.run(FrameTranslation.java:231)
Caused by: java.lang.NullPointerException
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:219)
 at
kodo.jdbc.meta.InClassNameClassIndicator.loadSubclasses(InClassNameClassIndicator.java:79)
 at
kodo.jdbc.runtime.JDBCStoreManager.loadSubclasses(JDBCStoreManager.java:1207)
 at
kodo.jdbc.runtime.JDBCStoreManager.addClassConditions(JDBCStoreManager.java:959)
 at
kodo.jdbc.runtime.JDBCStoreManager.selectMappings(JDBCStoreManager.java:922)
 at kodo.jdbc.runtime.JDBCStoreManager.access$300(JDBCStoreManager.java:32)
 at
kodo.jdbc.runtime.JDBCStoreManager$SelectImpl.selectInternal(JDBCStoreManager.java:1333)
 at kodo.jdbc.sql.AbstractSelect.select(AbstractSelect.java:313)
 at kodo.jdbc.sql.AbstractSelect.select(AbstractSelect.java:304)
 at
kodo.jdbc.query.JDBCExpressionFactory.select(JDBCExpressionFactory.java:137)
 at kodo.jdbc.query.JDBCQuery.executeQuery(JDBCQuery.java:111)
 at
kodo.query.JDOQLQuery$DataStoreQueryExecutor.executeQuery(JDOQLQuery.java:474)
 at kodo.query.AbstractQuery.executeWithMap(AbstractQuery.java:693)
 ... 16 more
NestedThrowablesStackTrace:
java.lang.NullPointerException
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:219)
 at
kodo.jdbc.meta.InClassNameClassIndicator.loadSubclasses(InClassNameClassIndicator.java:79)
 at
kodo.jdbc.runtime.JDBCStoreManager.loadSubclasses(JDBCStoreManager.java:1207)
 at
kodo.jdbc.runtime.JDBCStoreManager.addClassConditions(JDBCStoreManager.java:959)
 at
kodo.jdbc.runtime.JDBCStoreManager.selectMappings(JDBCStoreManager.java:922)
 at kodo.jdbc.runtime.JDBCStoreManager.access$300(JDBCStoreManager.java:32)
 at
kodo.jdbc.runtime.JDBCStoreManager$SelectImpl.selectInternal(JDBCStoreManager.java:1333)
 at kodo.jdbc.sql.AbstractSelect.select(AbstractSelect.java:313)
 at kodo.jdbc.sql.AbstractSelect.select(AbstractSelect.java:304)
 at
kodo.jdbc.query.JDBCExpressionFactory.select(JDBCExpressionFactory.java:137)
 at kodo.jdbc.query.JDBCQuery.executeQuery(JDBCQuery.java:111)
 at
kodo.query.JDOQLQuery$DataStoreQueryExecutor.executeQuery(JDOQLQuery.java:474)
 at kodo.query.AbstractQuery.executeWithMap(AbstractQuery.java:693)
 at kodo.query.AbstractQuery.executeWithArray(AbstractQuery.java:640)
 at kodo.query.AbstractQuery.execute(AbstractQuery.java:622)
 at com.transmachina.idiomatica.db.DbSession.get(DbSession.java:536)
 at
com.transmachina.idiomatica.app.WebDictionaryManager.hasBeenPreviouslyLookedUp(WebDictionaryManager.java:26)
 at
com.transmachina.idiomatica.app.WebDictionaryManager.doLookup(WebDictionaryManager.java:39)
 at
com.transmachina.idiomatica.utils.WordSearch.lookupAndReturnMatches(WordSearch.java:374)
 at
com.transmachina.idiomatica.utils.WordSearch.getWordMatches(WordSearch.java:345)
 at
com.transmachina.idiomatica.utils.WordSearch.getMatchesWithPosTrimming(WordSearch.java:546)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.WordAmbiguity.setupWordAmbiguity(WordAmbiguity.java:98)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.TextAmbiguity.setupTextAmbiguity(TextAmbiguity.java:271)
 at
com.transmachina.idiomatica.engine.parser.ambiguity.ParsedText.setupParsedText(ParsedText.java:141)
 at
com.transmachina.idiomatica.engine.presentation.Parser.parseToVectorOfWords(Parser.java:92)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getWord(Parser.java:377)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:193)
 at
com.transmachina.idiomatica.engine.presentation.Parser.getPassage(Parser.java:158)
 at
com.transmachina.idiomatica.adminTool.frame.translation.FrameTranslation$5.run(FrameTranslation.java:231)
>>
>>
>>
>>
>>
>>
>>
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Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com

Query executing faster after restart

Hi,
I have a query which used to take around 60 seconds to execute. The query is mainly made up of joins and has an order by condition. The query was showing a service time of 125ms when accessing the temp datafile.
When I restarted the server (windows) and database and I ran the query the execution time was 1 sec!! The query no longer seems to be accessing the temp file.
Any suggestions on what could have triggered this change?
Thanks
Keith

Because when you restart, the segments of the temp datafiles are deallocated. This means that you have space to do sort on disk if the sort of the query not have the sufficient space on SORT_AREA_SIZE
< src = http://www.csee.umbc.edu/help/oracle8/server.815/a67775/ch24_pex.htm#43319 >
SORT_AREA_SIZE
The recommended values for this parameter fall in the range from 256KB to 4MB.
This parameter specifies the amount of memory to allocate per query server process for sort operations. If you have a lot of system memory, you can benefit from setting SORT_AREA_SIZE to a large value. This can dramatically increase the performance of sort operations because the entire process is more likely to be performed in memory. However, if memory is a concern for your system, you may want to limit the amount of memory allocated for sort and hash operations.
If the sort area is too small, an excessive amount of I/O is required to merge a large number of sort runs. If the sort area size is smaller than the amount of data to sort, then the sort will move to disk, creating sort runs. These must then be merged again using the sort area. If the sort area size is very small, there will be many runs to merge and multiple passes may be necessary. The amount of I/O increases as SORT_AREA_SIZE decreases.
If the sort area is too large, the operating system paging rate will be excessive. The cumulative sort area adds up quickly because each query server process can allocate this amount of memory for each sort. For such situations, monitor the operating system paging rate to see if too much memory is being requested.
< >

Could not save the document to the repository for the following reason: [repo_proxy 30] DocumentFacade::uploadBlob - Query execute has failed : Error occurred while attempting to reconnect to CMS : Not a valid logon token. (FWB 00003) (hr=#0x80042a70) (WI

Hi, getting Could not save the document to the repository for the following reason: [repo_proxy 30] DocumentFacade::uploadBlob - Query execute has failed : Error occurred while attempting to reconnect to CMS : Not a valid logon token. (FWB 00003) (hr=#0x80042a70) (WIS 30567) amongst lots of other errors when scheduling.
I was logged in as administrator and attempting to schedule a webi document to my self using the email option.
thanks in advance

Hi Trinath,
Could you please confirm if you could save a new report as well or not; or is it specific to scheduling.
If you are unable to save a report also then I think this is due to the path of the Input File Repository Server or its temporary directory are not pointing to the same path, and their locations are set to 2 different hard drives
BOXI3.1 Server must use the same hard drive (local or network share) for the Input File Repository Server and its temporary directory.
- Shahnawaz

DA0003: Exception CS, Unable to run the query execute

Hi all,
I try to use a stored procedure as data provider but i get this error
DA0003: Exception CS, Unable to run the query execute
I use BusObj Full Client 6.5 pointing to SQL2005.
I choose stored procedure as data providers of a new report, then choose the Oledb connection to the database in which the sproc is saved (this sproc executes some queries, all on the same db). Then I fill in the parameter of the sproc and when i click OK I get this error.
The sp works fine if executed from a query tool. Basically it queries BusObj Security Domain in order to get the documents a single user has linked (both enabled and disabled). It doesn't do nothing exceptionall except using some table variables... I tried also with this simple func:
CREATE FUNCTION [dbo].[Yesterday] (@date int)
RETURNS int AS BEGIN
 DECLARE @Yesterday int
 SET @yesterday = convert(varchar, DATEADD(dd, -1, convert(datetime, str(@date), 112) ), 112)
 RETURN(@Yesterday)
END;
But it returns the same error!
I tried changing middleware to the DB from oleDB to ODBC but in this case it doesn't prompt me for parameters and when i click execute it fails saying the sproc expects a parameter...
I have no idea of what the cause may be... Can anybody help please?

Hi Alberto,
Could you please test the following solutions to resolve the issue.
Solution1:
Test the issue by inserting the following parameter in .SBO file.
<Parameter Name="Force SQLExecute">Always</Parameter> .
Solution2
Just put SET NOCOUNT OFF in the end of the stored procedure SQL.
If the above doesnu2019t works then please try the following solution.
Solution3
Make the new connection from the scratch using ODBC connection and test the issue.
I hope this will help you.
Regards,
Sarbhjeet Kaur

How to find exact query executed by reports with parameters

Hi,
I am running a report which errors out with below log messages.
REP-0004: Warning: Unable to open user preference file.
REP-0300: ORACLE error occurred.
REP-0069: Internal error
REP-57054: In-process job terminated:Terminated with error:
REP-300: ORACLE error occurred.
In toad, the query is not giving any error message.
I want to know what exact query is being executed by oracle report server.
How can I find exact query executed?
Abdul Wahid

Hi Bobby,
I had already tried to enable trace. But when I enable trace, report builder crashes!!
I created SR also, and oracle says that they do not support 10.1.2.0.2. I should update to 10.1.2.3.
I installed the 10.1.2.0.2 in xp mode and tried to update with 10.1.2.3. However, the updgrade failed saying that there is no update patch required/found or something like that.
Abdul Wahid

How to find last query executed?

Hi All
Can anyone tell as to how can we view the last query executed?
Do we need to write any script for it?
Cheers
Sudhir

> connect to sys user then type this script
Brilliant.
SQL> select sql_text from v$sql where first_load_time=(select max(first_load_time) from v$sql) ;
SQL_TEXT
select sql_text from v$sql where first_load_time=(select max(first_load_time) from v$sql)
SQL>

How to find open query executed once on SQL server

Hi Experts ,
Is there any way to identify that open query executed once on Db server using any DMv's ? we are planning enabale opimized for ad-hoc queries on SQL server ?
Shivraj Patil.

Hi,
You can use below query to find the plans that have been used only once.
SELECT text, cp.objtype, cp.size_in_bytes
FROM sys.dm_exec_cached_plans AS cp
CROSS APPLY sys.dm_exec_sql_text(cp.plan_handle) st
WHERE cp.cacheobjtype = N'Compiled Plan'
AND cp.objtype IN(N'Adhoc', N'Prepared')
AND cp.usecounts = 1
ORDER BY cp.size_in_bytes DESC
OPTION (RECOMPILE);
additionally you can also refer below articles.
http://sqlmag.com/database-performance-tuning/sql-server-plan-cache-junk-drawer-your-queries
Plan cache and optimizing for adhoc workloads
Please mark solved if I've answered your question, vote for it as helpful to help other users find a solution quicker
Praveen Dsa | MCITP - Database Administrator 2008 |
My Blog | My Page

IDM 7.1.1 objchange query executing against DB 66K times an hour?!

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