Cleanup special characters Program taking too much time
Hi Guys,
We run a program called Z_CLEAN_SPECIAL_CHARS to clean up special characters. Normally, it takes 5-10 mins to execute this program but for some reason it took 3 hours. We killed the program and restarted the process and it took normal time to execute.
Our team wants to investigate why this happened at the first place but not sure how and where to start. Any ideas. The log doesnt give much information.
Hi ,
Open your program in se38 .Set breakpoints and execute in debug mode .
Check how many data records you are getting for cleanup and which step is taking more time .
May be today you have more no of records to search or to clean up .
This may also be server bandwidth issue as you may have some other jobs also running along with this having higher priority .
If there will be any error you will get dump .
You progarm is a zprogram so it depends on what exactly this program is doing and which tables it is accessing .
One question how you are executing the program (via process chain or manually)?
Regards,
Jaya
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Auto Invoice Program taking too much time : problem with update sql
Hi ,
Oracle db version 11.2.0.3
Oracle EBS version : 12.1.3
Though we have a SEV-1 SR with oracle we have not been able to find much success.
We have an auto invoice program which runs many times in the day and its taking too much time since the begining . On troubleshooting we have found one query to be taking too much of the time and seek suggestion on how to tune it. I am attaching the explain plan for the for same. Its an update query. Please guide.
Plan
UPDATE STATEMENT ALL_ROWSCost: 0 Bytes: 124 Cardinality: 1
50 UPDATE AR.RA_CUST_TRX_LINE_GL_DIST_ALL
27 FILTER
26 HASH JOIN Cost: 8,937,633 Bytes: 4,261,258,760 Cardinality: 34,364,990
24 VIEW VIEW SYS.VW_NSO_1 Cost: 8,618,413 Bytes: 446,744,870 Cardinality: 34,364,990
23 SORT UNIQUE Cost: 8,618,413 Bytes: 4,042,339,978 Cardinality: 34,364,990
22 UNION-ALL
9 FILTER
8 SORT GROUP BY Cost: 5,643,052 Bytes: 3,164,892,625 Cardinality: 25,319,141
7 HASH JOIN Cost: 1,640,602 Bytes: 32,460,436,875 Cardinality: 259,683,495
1 TABLE ACCESS FULL TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 154,993 Bytes: 402,499,500 Cardinality: 20,124,975
6 HASH JOIN Cost: 853,567 Bytes: 22,544,143,440 Cardinality: 214,706,128
4 HASH JOIN Cost: 536,708 Bytes: 2,357,000,550 Cardinality: 29,835,450
2 TABLE ACCESS FULL TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 153,008 Bytes: 1,163,582,550 Cardinality: 29,835,450
3 TABLE ACCESS FULL TABLE AR.RA_CUSTOMER_TRX_LINES_ALL Cost: 307,314 Bytes: 1,193,526,000 Cardinality: 29,838,150
5 TABLE ACCESS FULL TABLE AR.RA_CUSTOMER_TRX_ALL Cost: 132,951 Bytes: 3,123,197,116 Cardinality: 120,122,966
21 FILTER
20 SORT GROUP BY Cost: 2,975,360 Bytes: 877,447,353 Cardinality: 9,045,849
19 HASH JOIN Cost: 998,323 Bytes: 17,548,946,769 Cardinality: 180,916,977
13 VIEW VIEW AR.index$_join$_027 Cost: 108,438 Bytes: 867,771,256 Cardinality: 78,888,296
12 HASH JOIN
10 INDEX RANGE SCAN INDEX AR.RA_CUSTOMER_TRX_N15 Cost: 58,206 Bytes: 867,771,256 Cardinality: 78,888,296
11 INDEX FAST FULL SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_U1 Cost: 62,322 Bytes: 867,771,256 Cardinality: 78,888,296
18 HASH JOIN Cost: 748,497 Bytes: 3,281,713,302 Cardinality: 38,159,457
14 TABLE ACCESS FULL TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 154,993 Bytes: 402,499,500 Cardinality: 20,124,975
17 HASH JOIN Cost: 519,713 Bytes: 1,969,317,900 Cardinality: 29,838,150
15 TABLE ACCESS FULL TABLE AR.RA_CUSTOMER_TRX_LINES_ALL Cost: 302,822 Bytes: 716,115,600 Cardinality: 29,838,150
16 TABLE ACCESS FULL TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 149,847 Bytes: 1,253,202,300 Cardinality: 29,838,150
25 TABLE ACCESS FULL TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 157,552 Bytes: 5,158,998,615 Cardinality: 46,477,465
41 SORT GROUP BY Bytes: 75 Cardinality: 1
40 FILTER
39 MERGE JOIN CARTESIAN Cost: 11 Bytes: 75 Cardinality: 1
35 NESTED LOOPS Cost: 8 Bytes: 50 Cardinality: 1
32 NESTED LOOPS Cost: 5 Bytes: 30 Cardinality: 1
29 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUSTOMER_TRX_LINES_ALL Cost: 3 Bytes: 22 Cardinality: 1
28 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_LINES_U1 Cost: 2 Cardinality: 1
31 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUSTOMER_TRX_ALL Cost: 2 Bytes: 133,114,520 Cardinality: 16,639,315
30 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_U1 Cost: 1 Cardinality: 1
34 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 3 Bytes: 20 Cardinality: 1
33 INDEX RANGE SCAN INDEX AR.RA_CUST_TRX_LINE_GL_DIST_N6 Cost: 2 Cardinality: 1
38 BUFFER SORT Cost: 9 Bytes: 25 Cardinality: 1
37 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 3 Bytes: 25 Cardinality: 1
36 INDEX RANGE SCAN INDEX AR.RA_CUST_TRX_LINE_GL_DIST_N1 Cost: 2 Cardinality: 1
49 SORT GROUP BY Bytes: 48 Cardinality: 1
48 FILTER
47 NESTED LOOPS
45 NESTED LOOPS Cost: 7 Bytes: 48 Cardinality: 1
43 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 4 Bytes: 20 Cardinality: 1
42 INDEX RANGE SCAN INDEX AR.RA_CUST_TRX_LINE_GL_DIST_N6 Cost: 3 Cardinality: 1
44 INDEX RANGE SCAN INDEX AR.RA_CUST_TRX_LINE_GL_DIST_N1 Cost: 2 Cardinality: 1
46 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUST_TRX_LINE_GL_DIST_ALL Cost: 3 Bytes: 28 Cardinality: 1
As per oracle , they had suggested multiple patches but that has not been helpful. Please suggest how do i tune this query. I dont have much clue of query tuning.
RegardsHi Paul, My bad. I am sorry I missed it.
Query as below :
UPDATE RA_CUST_TRX_LINE_GL_DIST LGD SET (AMOUNT, ACCTD_AMOUNT) = (SELECT /*+ index(rec1 RA_CUST_TRX_LINE_GL_DIST_N6) ordered */ NVL(LGD.AMOUNT, 0) - ( SUM(LGD2.AMOUNT) - ( DECODE(LGD.GL_DATE, REC1.GL_DATE, 1, 0) * CTL.EXTENDED_AMOUNT ) ), NVL(LGD.ACCTD_AMOUNT, 0) - ( SUM(LGD2.ACCTD_AMOUNT) - ( DECODE(LGD.GL_DATE, REC1.GL_DATE, 1, 0) * DECODE(:B2 , NULL, ROUND( CTL.EXTENDED_AMOUNT * NVL(CT.EXCHANGE_RATE,1), :B3 ), ROUND( ( CTL.EXTENDED_AMOUNT * NVL(CT.EXCHANGE_RATE,1) ) / :B2 ) * :B2 ) ) ) FROM RA_CUSTOMER_TRX_LINES CTL, RA_CUSTOMER_TRX CT, RA_CUST_TRX_LINE_GL_DIST LGD2, RA_CUST_TRX_LINE_GL_DIST REC1 WHERE CTL.CUSTOMER_TRX_LINE_ID = LGD2.CUSTOMER_TRX_LINE_ID AND CTL.CUSTOMER_TRX_ID = CT.CUSTOMER_TRX_ID AND LGD.CUSTOMER_TRX_LINE_ID = CTL.CUSTOMER_TRX_LINE_ID AND LGD2.ACCOUNT_SET_FLAG = 'N' AND REC1.CUSTOMER_TRX_ID = CT.CUSTOMER_TRX_ID AND REC1.ACCOUNT_CLASS = 'REC' AND REC1.LATEST_REC_FLAG = 'Y' AND NVL(LGD.GL_DATE, TO_DATE( 2415021, 'J') ) = NVL(LGD2.GL_DATE, TO_DATE( 2415021, 'J') ) GROUP BY CTL.CUSTOMER_TRX_LINE_ID, REC1.GL_DATE, CTL.EXTENDED_AMOUNT, CTL.REVENUE_AMOUNT, CT.EXCHANGE_RATE ), PERCENT = (SELECT /*+ index(rec2 RA_CUST_TRX_LINE_GL_DIST_N6) */ DECODE(LGD.ACCOUNT_CLASS || LGD.ACCOUNT_SET_FLAG, 'SUSPENSEN', LGD.PERCENT, 'UNBILLN', LGD.PERCENT, 'UNEARNN', LGD.PERCENT, NVL(LGD.PERCENT, 0) - ( SUM(NVL(LGD4.PERCENT, 0)) - DECODE(REC2.GL_DATE, NVL(LGD.GL_DATE, REC2.GL_DATE), 100, 0) ) ) FROM RA_CUST_TRX_LINE_GL_DIST LGD4, RA_CUST_TRX_LINE_GL_DIST REC2 WHERE LGD.CUSTOMER_TRX_LINE_ID = LGD4.CUSTOMER_TRX_LINE_ID AND REC2.CUSTOMER_TRX_ID = LGD.CUSTOMER_TRX_ID AND REC2.CUSTOMER_TRX_ID = LGD4.CUSTOMER_TRX_ID AND REC2.ACCOUNT_CLASS = 'REC' AND REC2.LATEST_REC_FLAG = 'Y' AND LGD4.ACCOUNT_SET_FLAG = LGD.ACCOUNT_SET_FLAG AND DECODE(LGD4.ACCOUNT_SET_FLAG, 'Y', LGD4.ACCOUNT_CLASS, LGD.ACCOUNT_CLASS) = LGD.ACCOUNT_CLASS AND NVL(LGD.GL_DATE, TO_DATE( 2415021, 'J') ) = NVL(LGD4.GL_DATE, TO_DATE( 2415021, 'J') ) GROUP BY REC2.GL_DATE, LGD.GL_DATE ), LAST_UPDATED_BY = :B1 , LAST_UPDATE_DATE = SYSDATE WHERE CUST_TRX_LINE_GL_DIST_ID IN (SELECT /*+ index(rec3 RA_CUST_TRX_LINE_GL_DIST_N6) */ MIN(DECODE(LGD3.GL_POSTED_DATE, NULL, LGD3.CUST_TRX_LINE_GL_DIST_ID, NULL) ) FROM RA_CUSTOMER_TRX_LINES CTL, RA_CUSTOMER_TRX T, RA_CUST_TRX_LINE_GL_DIST LGD3, RA_CUST_TRX_LINE_GL_DIST REC3 WHERE T.REQUEST_ID = :B5 AND T.CUSTOMER_TRX_ID = CTL.CUSTOMER_TRX_ID AND (CTL.LINE_TYPE IN ( 'TAX','FREIGHT','CHARGES','SUSPENSE' ) OR (CTL.LINE_TYPE = 'LINE' AND CTL.ACCOUNTING_RULE_ID IS NULL )) AND LGD3.CUSTOMER_TRX_LINE_ID = CTL.CUSTOMER_TRX_LINE_ID AND LGD3.ACCOUNT_SET_FLAG = 'N' AND REC3.CUSTOMER_TRX_ID = T.CUSTOMER_TRX_ID AND REC3.ACCOUNT_CLASS = 'REC' AND REC3.LATEST_REC_FLAG = 'Y' AND NVL(T.PREVIOUS_CUSTOMER_TRX_ID, -1) = DECODE(:B4 , 'INV', -1, 'REGULAR_CM', T.PREVIOUS_CUSTOMER_TRX_ID, NVL(T.PREVIOUS_CUSTOMER_TRX_ID, -1) ) GROUP BY CTL.CUSTOMER_TRX_LINE_ID, LGD3.GL_DATE, REC3.GL_DATE, CTL.EXTENDED_AMOUNT, CTL.REVENUE_AMOUNT, T.EXCHANGE_RATE HAVING ( SUM(NVL(LGD3.AMOUNT, 0)) <> CTL.EXTENDED_AMOUNT * DECODE(LGD3.GL_DATE, REC3.GL_DATE, 1, 0) OR SUM(NVL(LGD3.ACCTD_AMOUNT, 0)) <> DECODE(LGD3.GL_DATE, REC3.GL_DATE, 1, 0) * DECODE(:B2 , NULL, ROUND( CTL.EXTENDED_AMOUNT * NVL(T.EXCHANGE_RATE,1), :B3 ), ROUND( ( CTL.EXTENDED_AMOUNT * NVL(T.EXCHANGE_RATE,1) ) / :B2 ) * :B2 ) ) UNION SELECT /*+ index(rec5 RA_CUST_TRX_LINE_GL_DIST_N6) INDEX (lgd5 ra_cust_trx_line_gl_dist_n6) index(ctl2 ra_customer_trx_lines_u1) */ TO_NUMBER( MIN(DECODE(LGD5.GL_POSTED_DATE||LGD5.ACCOUNT_CLASS|| LGD5.ACCOUNT_SET_FLAG, 'REVN', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'REVY', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'TAXN', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'TAXY', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'FREIGHTN', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'FREIGHTY', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'CHARGESN', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'CHARGESY', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'UNEARNY', LGD5.CUST_TRX_LINE_GL_DIST_ID, 'UNBILLY', LGD5.CUST_TRX_LINE_GL_DIST_ID, NULL ) ) ) FROM RA_CUST_TRX_LINE_GL_DIST LGD5, RA_CUST_TRX_LINE_GL_DIST REC5, RA_CUSTOMER_TRX_LINES CTL2, RA_CUSTOMER_TRX T WHERE T.REQUEST_ID = :B5 AND T.CUSTOMER_TRX_ID = REC5.CUSTOMER_TRX_ID AND CTL2.CUSTOMER_TRX_LINE_ID = LGD5.CUSTOMER_TRX_LINE_ID AND REC5.CUSTOMER_TRX_ID = LGD5.CUSTOMER_TRX_ID AND REC5.ACCOUNT_CLASS = 'REC' AND REC5.LATEST_REC_FLAG = 'Y' AND (CTL2.LINE_TYPE IN ( 'TAX','FREIGHT','CHARGES','SUSPENSE') OR (CTL2.LINE_TYPE = 'LINE' AND (CTL2.ACCOUNTING_RULE_ID IS NULL OR LGD5.ACCOUNT_SET_FLAG = 'Y' ))) GROUP BY LGD5.CUSTOMER_TRX_LINE_ID, LGD5.GL_DATE, REC5.GL_DATE, LGD5.ACCOUNT_SET_FLAG, DECODE(LGD5.ACCOUNT_SET_FLAG, 'N', NULL, LGD5.ACCOUNT_CLASS) HAVING SUM(NVL(LGD5.PERCENT, 0)) <> DECODE( NVL(LGD5.GL_DATE, REC5.GL_DATE), REC5.GL_DATE, 100, 0) )
I understand that this could be a seeded query but my attempt is to tune it.
Regards -
Hi all
I'm quite new to database administration.my problem is that i'm trying to import dump file but one of the table taking too much time to import .
Description::
1 Export taken from source database which is in oracle 8i character set is WE8ISO8859P1
2 I am taking import in 10 g with character set utf 8 and national character set is also same.
3 dump file is about 1.5 gb.
4 I got error like value is too large for column so in target db which is in utf 8 i convert all coloumn from varchar2 to char.
5 while taking a import some table get import very fast bt at perticular table it get very slow
please help me thanks in advance.......Hello,
4 I got error like value is too large for column so in target db which is in utf 8 i convert all coloumn from varchar2 to char.
5 while taking a import some table get import very fast bt at perticular table it get very slow For the point *4* it's typically due to the CHARACTER SET conversion.
You export data in WE8ISO8859P1 and import in UTF8. In WE8ISO8859P1 characters are encoded in *1 Byte* so *1 CHAR = 1 BYTE*. In UTF8 (Unicode) characters are encoded in up to *4 Bytes* so *1 CHAR > 1 BYTE*.
For this reason you'll have to modify the length of your CHAR or VARCHAR2 Columns, or add the CHAR option (by default it's BYTE) in the column datatype definition of the Tables. For instance:
VARCHAR2(100 CHAR)The NLS_LENGTH_SEMANTICS parameter may be used also but it's not very well managed by export/Import.
So, I suggest you this:
1. set NLS_LENGTH_SEMANTICS=CHAR on your target database and restart the database.
2. Create from a script all your Tables (empty) on the target database (without the indexes and constraints).
3. Import the datas to the Tables.
4. Import the Indexes and constraints.You'll have more information on the following Note of MOS:
Examples and limits of BYTE and CHAR semantics usage (NLS_LENGTH_SEMANTICS) [ID 144808.1]For the point *5* it may be due to the conversion problem you are experiencing, it may also due to some special datatype like LONG.
Else, I have a question, why do you choose UTF8 on your Target database and not AL32UTF8 ?
AL32UTF8 is recommended for Unicode uses.
Hope this help.
Best regards,
Jean-Valentin -
Report taking too much time in the portal
Hi freiends,
we have developed a report on the ods,and we publish the same on the portal.
the problem is when the users are executing the report at the same time it is taking too much time.because of this the perfoemance is very poor.
is there any way to sort out this issue,like can we send the report to the individual user's mail id
so that they can not log in to the portal
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what could be the main difference if the report made on the cube or ods?
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sridathHi
Try this to improve performance of query
Find the query Run-time
where to find the query Run-time ?
557870 'FAQ BW Query Performance'
130696 - Performance trace in BW
This info may be helpful.
General tips
Using aggregates and compression.
Using less and complex cell definitions if possible.
1. Avoid using too many nav. attr
2. Avoid RKF and CKF
3. Many chars in row.
By using T-codes ST03 or ST03N
Go to transaction ST03 > switch to expert mode > from left side menu > and there in system load history and distribution for a particular day > check query execution time.
/people/andreas.vogel/blog/2007/04/08/statistical-records-part-4-how-to-read-st03n-datasets-from-db-in-nw2004
/people/andreas.vogel/blog/2007/03/16/how-to-read-st03n-datasets-from-db
Try table rsddstats to get the statistics
Using cache memory will decrease the loading time of the report.
Run reporting agent at night and sending results to email. This will ensure use of OLAP cache. So later report execution will retrieve the result faster from the OLAP cache.
Also try
1. Use different parameters in ST03 to see the two important parameters aggregation ratio and records transferred to F/E to DB selected.
2. Use the program SAP_INFOCUBE_DESIGNS (Performance of BW infocubes) to see the aggregation ratio for the cube. If the cube does not appear in the list of this report, try to run RSRV checks on the cube and aggregates.
Go to SE38 > Run the program SAP_INFOCUBE_DESIGNS
It will shown dimension Vs Fact tables Size in percent.If you mean speed of queries on a cube as performance metric of cube,measure query runtime.
3. To check the performance of the aggregates,see the columns valuation and usage in aggregates.
Open the Aggregates...and observe VALUATION and USAGE columns.
"---" sign is the valuation of the aggregate. You can say -3 is the valuation of the aggregate design and usage. ++ means that its compression is good and access is also more (in effect, performance is good). If you check its compression ratio, it must be good. -- means the compression ratio is not so good and access is also not so good (performance is not so good).The more is the positives...more is useful the aggregate and more it satisfies the number of queries. The greater the number of minus signs, the worse the evaluation of the aggregate. The larger the number of plus signs, the better the evaluation of the aggregate.
if "-----" then it means it just an overhead. Aggregate can potentially be deleted and "+++++" means Aggregate is potentially very useful.
In valuation column,if there are more positive sign it means that the aggregate performance is good and it is useful to have this aggregate.But if it has more negative sign it means we need not better use that aggregate.
In usage column,we will come to know how far the aggregate has been used in query.
Thus we can check the performance of the aggregate.
Refer.
http://help.sap.com/saphelp_nw70/helpdata/en/b8/23813b310c4a0ee10000000a114084/content.htm
http://help.sap.com/saphelp_nw70/helpdata/en/60/f0fb411e255f24e10000000a1550b0/frameset.htm
performance ISSUE related to AGGREGATE
Note 356732 - Performance Tuning for Queries with Aggregates
Note 166433 - Options for finding aggregates (find optimal aggregates for an InfoCube)
4. Run your query in RSRT and run the query in the debug mode. Select "Display Aggregates Found" and "Do not use cache" in the debug mode. This will tell you if it hit any aggregates while running. If it does not show any aggregates, you might want to redesign your aggregates for the query.
Also your query performance can depend upon criteria and since you have given selection only on one infoprovider...just check if you are selecting huge amount of data in the report
Check for the query read mode in RSRT.(whether its A,X or H)..advisable read mode is X.
5. In BI 7 statistics need to be activated for ST03 and BI admin cockpit to work.
By implementing BW Statistics Business Content - you need to install, feed data and through ready made reports which for analysis.
http://help.sap.com/saphelp_nw70/helpdata/en/26/4bc0417951d117e10000000a155106/frameset.htm
/people/vikash.agrawal/blog/2006/04/17/query-performance-150-is-aggregates-the-way-out-for-me
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/1955ba90-0201-0010-d3aa-8b2a4ef6bbb2
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/ce7fb368-0601-0010-64ba-fadc985a1f94
http://help.sap.com/saphelp_nw04/helpdata/en/c1/0dbf65e04311d286d6006008b32e84/frameset.htm
You can go to T-Code DB20 which gives you all the performance related information like
Partitions
Databases
Schemas
Buffer Pools
Tablespaces etc
use tool RSDDK_CHECK_AGGREGATE in se38 to check for the corrupt aggregates
If aggregates contain incorrect data, you must regenerate them.
202469 - Using aggregate check tool
Note 646402 - Programs for checking aggregates (as of BW 3.0B SP15)
You can find out whether an aggregate is usefull or useless you can find out through a proccess of checking the tables RSDDSTATAGGRDEF*
Run the query in RSRT with statistics execute and come back you will get STATUID... copy this and check in the table...
This gives you exactly which infoobjects it's hitting, if any one of the object is missing it's useless aggregate.
6
Check SE11 > table RSDDAGGRDIR . You can find the last callup in the table.
Generate Report in RSRT
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cccad390-0201-0010-5093-fd9ec8157802
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/4c0ab590-0201-0010-bd9a-8332d8b4f09c
Business Intelligence Journal Improving Query Performance in Data Warehouses
http://www.tdwi.org/Publications/BIJournal/display.aspx?ID=7891
Achieving BI Query Performance Building Business Intelligence
http://www.dmreview.com/issues/20051001/1038109-1.html
Assign points if useful
Cheers
SM -
Client import taking too much time
hi all,
i am importing a client , i it has complete copy table 19,803 of 19,803 but for last four hours its status is processing
scc3
Target Client 650
Copy Type Client Import Post-Proc
Profile SAP_CUST
Status Processing...
User SAP*
Start on 24.05.2009 / 15:08:03
Last Entry on 24.05.2009 / 15:36:25
Current Action: Post Processing
- Last Exit Program RGBCFL01
Transport Requests
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- Texts PRDKX00004
Statistics for this Run
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- Deleted Lines 7
- Copied Lines 0
sm50
1 DIA 542 Running Yes SAPLTHFB 650 SAP*
7 BGD 4172 Running Yes 11479 RGTBGD23 650 SAP* Sequential Read D010INC
sm66
Server No. Type PID Status Reason Sem Start Error CPU Time User Report Action Table
prdsap_PRD_00 7 BTC 4172 Running Yes 11711 SAP* RGTBGD23 Sequential Read D010INC
plz guide me why it is taking too much time , while it has finished most of the things
best regard
KhanThe import is in post processing. It digs through all the documents and adapts them to the new client. Most of the tables in the application area have a "MANDT" (= client) field which needs to be changed. Depending of the size of the client this can take a huge amount of time.
You can try to improve the speed by updating the table statistics for table D010INC.
Markus -
hi
The following query is taking too much time (more than 30 minutes), working with 11g.
The table has three columns rid, ida, geometry and index has been created on all columns.
The table has around 5,40,000 records of point geometries.
Please help me with your suggestions. I want to select duplicate point geometry where ida=CORD.
SQL> select a.rid, b.rid from totalrecords a, totalrecords b where a.ida='CORD' and b.idat='CORD' and
sdo_equal(a.geometry, b.geometry)='TRUE' and a.rid !=b.rid order by 1,2;
regardsI have removed some AND conditions That was not necessary. It's just that Oracle can see for example that
a.ida='CORD' AND
b.idat='CORD' AND
a.rid !=b.rid AND
sdo_equal(a.geometry, b.geometry)='TRUE'
ORDER BY 1,2;if a.ida does not equal 'CORD', the whole set of conditions evaluates to FALSE, so Oracle will not bother evaluating the rest of the conditions because it's all AND'ed together, and TRUE AND FALSE = FALSE.
So if you place your least expensive conditions first (even though the optimizer can and will reorder conditions) this will give you a small performance benefit. Too small to notice, but on 5.4 million records it should be noticable.
and I have set layer_gtype=POINT.Good, that will help. I forgot about that one (Thanks Luc!).
Now i am facing the problem to DELETE duplicate point geometry. The following query is taking too much time. What is too much time? Do you need to delete these duplicate points on a daily or hourly basis? Or is this a one-time cleanup action? If it's a one-time cleanup operation, does it really matter if it takes half an hour?
And if this is a daily or even hourly operation, then why don't you prevent the duplicates from entering the table in the first place? That will save you from having to clean up afterwards. Of course, this might not be possible with your business requirements.
Lastly: can you post an explain plan for your queries? Those might give us an idea of what is taking so much time. Please enclose the results of the explain plan with
[ c o d e ]
<code/results here>
[ / c o d e ]
that way the original formatting is kept and it makes things much easier to read.
Regards,
Stefan -
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does not open any page or central admin site and shows following error
event i go to logs folder under 15 hive but nothing useful found please tell me why it takes about 10-12 minutes to open a site or any page and then shows above shown error.This usually happens if you are low on hardware requirements. Check whether your machine confirms with the required software and hardware requirements.
https://technet.microsoft.com/en-us/library/cc262485.aspx
http://sharepoint.stackexchange.com/questions/58370/minimum-real-world-system-requirements-for-sharepoint-2013
Please remember to up-vote or mark the reply as answer if you find it helpful. -
Taking too much time to load application
Hi,
I have deployed a j2ee application on oracle 10g version 10.1.2.0.2. But the application is taking too much time to load. After loading ,everything works fast.
I have another 10g server (same version) in which the same application is loading very fast.
When I checked the apache error logs found this :-
[Thu Apr 26 09:17:31 2007] [warn] [client 10.1.20.9] oc4j_socket_recvfull timed out
[Thu Apr 26 09:17:31 2007] [error] [client 10.1.20.9] [ecid: 89128867058,1] (4)Interrupted system call: MOD_OC4J_0038: Receiving data from oc4j exceeded the configured "Timeout" value and the error code is 4.
[Thu Apr 26 09:17:31 2007] [error] [client 10.1.20.9] [ecid: 89128867058,1] MOD_OC4J_0054: Failed to call network routine to receive an ajp13 message from oc4j.
[Thu Apr 26 09:17:31 2007] [error] [client 10.1.20.9] [ecid: 89128867058,1] MOD_OC4J_0033: Failed to receive an ajp13 message from oc4j.
[Thu Apr 26 09:17:31 2007] [warn] [client 10.1.20.9] [ecid: 89128867058,1] MOD_OC4J_0078: Network connection errors happened to host: lawdb.keralalawsect.org and port: 12501 while receiving the first response from oc4j. This request is recoverable.
[Thu Apr 26 09:17:31 2007] [error] [client 10.1.20.9] [ecid: 89128867058,1] MOD_OC4J_0121: Failed to service request with network worker: home_15 and it is not recoverable.
[Thu Apr 26 09:17:31 2007] [error] [client 10.1.20.9] [ecid: 89128867058,1] MOD_OC4J_0013: Failed to call destination: home's service() to service the request.
[Thu Apr 26 11:36:36 2007] [notice] FastCGI: process manager initialized (pid 21177)
[Thu Apr 26 11:36:37 2007] [notice] Oracle-Application-Server-10g/10.1.2.0.2 Oracle-HTTP-Server configured -- resuming normal operations
[Thu Apr 26 11:36:37 2007] [notice] Accept mutex: fcntl (Default: sysvsem)
[Thu Apr 26 11:36:37 2007] [warn] long lost child came home! (pid 9124)
[Thu Apr 26 11:39:51 2007] [error] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0015: recv() returns 0. There has no message available to be received and oc4j has gracefully (orderly) closed the connection.
[Thu Apr 26 11:39:51 2007] [error] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0054: Failed to call network routine to receive an ajp13 message from oc4j.
[Thu Apr 26 11:39:51 2007] [error] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0033: Failed to receive an ajp13 message from oc4j.
[Thu Apr 26 11:39:51 2007] [warn] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0078: Network connection errors happened to host: lawdb.keralalawsect.org and port: 12501 while receiving the first response from oc4j. This request is recoverable.
[Thu Apr 26 11:39:51 2007] [warn] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0184: Failed to find an oc4j process for destination: home
[Thu Apr 26 11:39:51 2007] [error] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0145: There is no oc4j process (for destination: home) available to service request.
[Thu Apr 26 11:39:51 2007] [error] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0119: Failed to get an oc4j process for destination: home
[Thu Apr 26 11:39:51 2007] [error] [client 10.1.20.9] [ecid: 80547835731,1] MOD_OC4J_0013: Failed to call destination: home's service() to service the request.
[Thu Apr 26 11:46:33 2007] [notice] FastCGI: process manager initialized (pid 21726)
[Thu Apr 26 11:46:34 2007] [notice] Oracle-Application-Server-10g/10.1.2.0.2 Oracle-HTTP-Server configured -- resuming normal operations
[Thu Apr 26 11:46:34 2007] [notice] Accept mutex: fcntl (Default: sysvsem)
[Thu Apr 26 11:46:34 2007] [warn] long lost child came home! (pid 21182)
[Thu Apr 26 11:53:32 2007] [warn] [client 10.1.20.9] oc4j_socket_recvfull timed out
[Thu Apr 26 11:53:32 2007] [error] [client 10.1.20.9] [ecid: 89138452752,1] (4)Interrupted system call: MOD_OC4J_0038: Receiving data from oc4j exceeded the configured "Timeout" value and the error code is 4.
[Thu Apr 26 11:53:32 2007] [error] [client 10.1.20.9] [ecid: 89138452752,1] MOD_OC4J_0054: Failed to call network routine to receive an ajp13 message from oc4j.
[Thu Apr 26 11:53:32 2007] [error] [client 10.1.20.9] [ecid: 89138452752,1] MOD_OC4J_0033: Failed to receive an ajp13 message from oc4j.
[Thu Apr 26 11:53:32 2007] [warn] [client 10.1.20.9] [ecid: 89138452752,1] MOD_OC4J_0078: Network connection errors happened to host: lawdb.keralalawsect.org and port: 12501 while receiving the first response from oc4j. This request is recoverable.
[Thu Apr 26 11:53:32 2007] [error] [client 10.1.20.9] [ecid: 89138452752,1] MOD_OC4J_0121: Failed to service request with network worker: home_15 and it is not recoverable.
[Thu Apr 26 11:53:32 2007] [error] [client 10.1.20.9] [ecid: 89138452752,1] MOD_OC4J_0013: Failed to call destination: home's service() to service the request.
Please HELP ME...Hi this is what the solution given by your link
A.1.6 Connection Timeouts Through a Stateful Firewall Affect System Performance
Problem
To improve performance the mod_oc4j component in each Oracle HTTP Server process maintains open TCP connections to the AJP port within each OC4J instance it sends requests to.
In situations where a firewall exists between OHS and OC4J, packages sent via AJP are rejected if the connections can be idle for periods in excess of the inactivity timeout of stateful firewalls.
However, the AJP socket is not closed; as long as the socket remains open, the worker thread is tied to it and is never returned to the thread pool. OC4J will continue to create more threads, and will eventually exhaust system resources.
Solution
The OHS TCP connection must be kept "alive" to avoid firewall timeout issues. This can be accomplished using a combination of OC4J configuration parameters and Apache runtime properties.
Set the following parameters in the httpd.conf or mod_oc4j.conf configuration files. Note that the value of Oc4jConnTimeout sets the length of inactivity, in seconds, before the session is considered inactive.
Oc4jUserKeepalive on
Oc4jConnTimeout 12000 (or a similar value)
Also set the following AJP property at OC4J startup to enable OC4J to close AJP sockets in the event that a connection between OHS and OC4J is dropped due to a firewall timeout:
ajp.keepalive=true
For example:
java -Dajp.keepalive=true -jar oc4j.jar
Please tell me where or which file i should put the option
java -Dajp.keepalive=true -jar oc4j.jar ??????/ -
Creative Cloud is taking too much time to load and is not downloading the one month trial for Photoshop I just paid money for.
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The Basic Troubleshooting Steps are:
Restart... Reset... Restore...
iPhone Reset
http://support.apple.com/kb/ht1430
Try this First... You will Not Lose Any Data...
Turn the Phone Off...
Press and Hold the Sleep/Wake Button and the Home Button at the Same Time...
Wait for the Apple logo to Appear and then Disappear...
Usually takes about 15 - 20 Seconds... ( But can take Longer...)
Release the Buttons...
Turn the Phone On...
If that does not help... See Here:
Backing up, Updating and Restoring
http://support.apple.com/kb/HT1414 -
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i have done system copy from Production to Quality server completely.
after that i started SAP on Quality server, it is taking too much time for opening SAP transactions (it is going in compilation mode).
i started SGEN, but it is giving time_out errors. please help me on this issue.
MY hardware details on quality server
operating system : SuSE Linux 10 SP2
Database : 10.2.0.2
SAP : ECC 6.0 SR2
RAM size : 8 GB
Hard disk space : 500 GB
swap space : 16 GB.
regards
RameshHi,
>i started SGEN, but it is giving time_out errors. please help me on this issue.
You are supposed to run SGEN as a batch job and so, it should be possible to get time out errors.
I've seen Full SGEN lasting from 3 hours on high end systems up to 8 full days on PC hardware...
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I am Scheduling the DTP which have filters to minimize the load data.
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here it is consuming too much time in Rules Mapping.
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sreeHi,
Time taken at "rules" depends on the complexity involved there in ur routine. If it is a complex calculation it will take time.
Also check ur DTP batch settings, ie how many no. of background processes used to perform DTP, Job class.
U can find these :
goto DTP, select goto menu and select "Settings for Batch Manager".
In the screen increase no of Processes from 3 to higher no(max 9).
ChaNGE job class to 'A'.
If ur DTP is still running , cancel it ie Kill the DTP, delete from the Cube,
Change these settings and run ur DTP one more time.
U can observer the difference.
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Hi all,
I am collecting business content object for activation. I have selected 0fiAA_cha object,while cllecting in the activation but it is taking too much time and then it asks for source
system authorisation and then throws error maximum run time exceded. i have selected data flow before there.
What can be the reason for it.
Please help..Hi ,
You should also always try and have the latest BI content patch installed but I don't think this is the problem. It seems that there
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Hi,
I'm using the method extractItems() which is given below to write data to a file. This method is taking too much time to execute when the number of records in the enumeration is 10000 and above. To be precise it takes around 70 minutes. The writing pauses intermittently for 20 seconds after writing a few lines and sometimes for much more. Has somebody faced this problem before and if so what could be the problem. This is a very high priority work and it would be really helpful if someone could give me some info on this.
Thanks in advance.
public String extractItems() throws InternalServerException{
try{
String extractFileName = getExtractFileName();
FileWriter fileWriter = new FileWriter(extractFileName);
BufferedWriter bufferWrt = new BufferedWriter(fileWriter);
CXBusinessClassIfc editClass = new ExploreClassImpl(className, mdlMgr );
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System.out.println("After -1");
PrintWriter out = new PrintWriter(bufferWrt);
System.out.println("Before -2");
TemplateHeaderInfo.printHeaderInfo(propInfo, out, mdlMgr);
System.out.println("After -2");
XDItemSet itemSet = getItemsForObjectIds(catalogEditDO.getSelectedItems());
Enumeration allitems = itemSet.allItems();
System.out.println("the batch size : " +itemSet.getBatchSize());
XDForm frm = itemSet.getXDForm();
XDFormProperty[] props = frm.getXDFormProperties();
System.out.println("Before -3");
bufferWrt.newLine();
long startTime ,startTime1 ,startTime2 ,startTime3;
startTime = System.currentTimeMillis();
System.out.println("time here is--before-while : " +startTime);
while(allitems.hasMoreElements()){
String aRow = "";
XDItem item = (XDItem)allitems.nextElement();
for(int i =0 ; i < props.length; i++){
String value = item.getStringValue(props);
if(value == null || value.equalsIgnoreCase("null"))
value = "";
if(i == 0)
aRow = value;
else
aRow += ("\t" + value);
startTime1 = System.currentTimeMillis();
System.out.println("time here is--before-writing to buffer --new: " +startTime1);
bufferWrt.write(aRow.toCharArray());
bufferWrt.flush();//added by rosmon to check extra time taken for extraction//
bufferWrt.newLine();
startTime2 = System.currentTimeMillis();
System.out.println("time here is--after-writing to buffer : " +startTime2);
startTime3 = System.currentTimeMillis();
System.out.println("time here is--after-while : " +startTime3);
out.close();//added by rosmon to check extra time taken for extraction//
bufferWrt.close();
fileWriter.close();
System.out.println("After -3");
return extractFileName;
catch(Exception e){
e.printStackTrace();
throw new InternalServerException(e.getMessage());Hi fiontan,
Thanks a lot for the response!!!
Yeah!! I kow it's a lotta code, but i thought it'd be more informative if the whole function was quoted.
I'm in fact using the PrintWriter to wrap the BufferedWriter but am not using the print() method.
Does it save any time by using the print() method??
The place where the delay is occurring is the wile loop shown below:
while(allitems.hasMoreElements()){
String aRow = "";
XDItem item = (XDItem)allitems.nextElement();
for(int i =0 ; i < props.length; i++){
String value = item.getStringValue(props);
if(value == null || value.equalsIgnoreCase("null"))
value = "";
if(i == 0)
aRow = value;
else
aRow += ("\t" + value);
startTime1 = System.currentTimeMillis();
System.out.println("time here is--before-writing to buffer --out.flush() done: " +startTime1);
bufferWrt.write(aRow.toCharArray());
out.flush();//added by rosmon to check extra time taken for extraction//
bufferWrt.flush();//added by rosmon to check extra time taken for extraction//
bufferWrt.newLine();
startTime2 = System.currentTimeMillis();
System.out.println("time here is--after-writing to buffer : " +startTime2);
What exactly happens is that after a few loops it just seems to sleep for around 20 seconds and then again starts off and ............it goes on till the records are done.
Please do lemme know if you have any idea as to why this is happening !!!!! This bug is giving me the scare.
thanks in advance -
Taking too much time (1min) to connect to database
Hi,
I have oracle 10.2 and 10g application server.
Its taking too much time to connect to database through application (on browser). The connection through sqlplus is fine.
Please share your experience.
Regards,
NaseerDear AnaTech,
i am going to ask not related this question which already you answered i am going to ask you about that how to connect forms6i and Developer 10g with OracleAS.
i have installed and working Developer Suite 10g Ver. 10.1.2 and also Form Builder 6i. On my other machine i installed and working Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 and also on the database machine i installed Oracle Enterprise Manager 10g Application Server Control 10.1.2.0.2.
my database conectivity with Developer suite Forms and Reports and also Form6i and Reports6i are working fine. no problem.
now the 1 question of mine is that when i try to run form6i through run from web i got this error. FRM-99999: error 18121 occured see the release not.
this and the main question of mine is this that how can i control my OracleAS 10g with forms because basically the functionality of OracleAS is Mid-Tier but i am not utilizing the Mid-tier i am using here Two-tier Envrionment even i installed 3-Tier Environment so tell me how i utilize it with 3-Tier..
I hope you don't mind that i ask this question here and also if you give me you email then we can discuss this in detail and i can be helpful of your great expertise. i also know and utilize my 3-tier real envrionment.
Waiting for your great response.
Regards,
K.J.J.C
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