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Maximizing the Performance of the Oracle eBusiness Suite Ahmed Alomari Applications Performance Group Oracle Corporation June 14, 2005.

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Presentation on theme: "Maximizing the Performance of the Oracle eBusiness Suite Ahmed Alomari Applications Performance Group Oracle Corporation June 14, 2005."— Presentation transcript:

1 Maximizing the Performance of the Oracle eBusiness Suite Ahmed Alomari Applications Performance Group Oracle Corporation June 14, 2005

2 Agenda Architecture Application Services Tier – Forms – Reports – Concurrent Manager – Apache Mod PL/SQL Jserv/JVM – Portal – Discoverer Network Performance Data Server Tier Application Tuning 11i10 Performance Improvements Q & A

3 Architecture Java Server Pages (JSP) Forms Reports Discoverer Concurrent Manager Servlet Engine Web Listener Portal Real Application Clusters (RAC) Data Server Tier TNS (Net8) JDBC (Thin) PL/SQL Gateway http Application Tier Clients AOLJ

4 Application Services Tier Forms – Deploy with socket mode for internal users: connectMode=socket (appsweb.cfg) – Enable Forms Dead Client Detection Value specified in minutes Terminates f60webmx processes for dead clients. FORMS60_TIMEOUT=10 – Enable Forms Abnormal Termination Handler Do not set FORMS60_CATCHTERM

5 Application Services Tier Forms – Upgrade to the latest Forms patch set (patch set 16) Forms patchset 7 ( X) introduced a regression which affects scalability (bug ). ­Results in Forms generating invalid SQL. ­Fixed in Forms patchset 10 ( X). Refer to MetaLink document for Forms patchset upgrades.

6 Application Services Tier Forms – Cancel Query – Should not be enabled unless you are on Forms patchset 14 (Forms version x or higher). – Refer to MetaLink Note for instructions on how to enable and tune Cancel query related parameters. – Cancel Query increases middle-tier CPU as well as DB CPU. – To Disable Cancel Query Set the Profile FND: Enable Cancel Query to No.

7 Application Services Tier Forms – Ensure users are optimally utilizing the professional Forms interfaces. Avoid Blind queries Provide selective criteria in Find windows and LOVs. Avoid opening and closing forms across transactions. ­Users which need to switch responsibility in order to complete a business transaction should instead keep the relevant Forms open.

8 Application Services Tier Forms (Tracing) – If the form is slow, or a specific flow in the Form is slow, first generate a complete SQL trace using the Trace menu in Help-Diagnostics. – If the SQL trace does not account for the majority of the response time experienced by the user, then generate a Forms Runtime Diagnostics (FRD) Trace.

9 Application Services Tier Forms (Tracing – SQL Trace)

10 Application Services Tier Forms (Tracing – FRD Trace) – Logon to Applications 11i with the following parameters appended to the URL: play=&record=collect&log=/tmp/oeform.trc – Navigate through the flows which you would like to trace. – Exit from Oracle Applications completely. – Review the trace file from the application server (/tmp/oeform.trc).

11 Application Services Tier Reports – Ensure users provide selective parameters to the standard Reports. – Review the Report output: Number of rows returned to the report. Number of report pages. – SQL Trace can be generated at Request Submission Time (SRS form – Debug Options) or by setting the Enable Trace flag in the Concurrent Program Definition Form.

12 Application Services Tier Reports (Tracing) – If the SQL trace for the report does not account for the elapsed time of the request, then generate a Reports trace by appending tracing parameters the to concurrent program command line. – The following are the trace options: – TRACE_ALL : log all possible trace information in the trace file. (DEFAULT) – TRACE_APP : log trace information on all the report objects in the trace file. – TRACE_BRK : list breakpoints in the trace file. – TRACE_ERR : list error messages and warnings in the trace file. – TRACE_PLS : log trace information on all the PL/SQL objects in the trace file. – TRACE_PRF : log performance statistics in the trace file. – TRACE_SQL : log trace information on all the SQL in the trace file. – TRACE_TMS : enter a timestamp for each entry in the trace file.

13 Application Services Tier Reports (Tracing) – Enabling Reports Trace (pre 11i10) Sign-on to Apps with System Administrator responsibility Navigate to Concurrent -> Program -> Define Query the concurrent program (report) which you want to trace. Locate the Options field and enter the following values : TRACEOPTS= TRACEFILE= Save the concurrent program Run the report and a trace file will be generated. Remember to clear the trace options after running the report. – Enabling Reports Trace (11i10) Use the Debug Options page at request submission.

14 Application Services Tier Reports (Trace Output) Report: /u02/appl/fnd/11.5.0/reports/US/FNDSCURS.rdf Logged onto server: Username: :59:57 APP... ( Generic Graphical Object B_SECURITY_GROUP_NAME1 23:59:57 APP... ) Generic Graphical Object B_SECURITY_GROUP_NAME1 23:59:57 APP... ( Generic Graphical Object B_USER_NAME | Report Builder Profiler statistics | TOTAL ELAPSED Time: seconds Reports Time: seconds (53.34% of TOTAL) ORACLE Time: seconds (46.65% of TOTAL) UPI: seconds SQL: 0.40 seconds TOTAL CPU Time used by process: seconds

15 Application Services Tier Concurrent Manager – Avoid enabling an excessive number of standard or specialized managers. – Use specialization rules and work shifts to bind specific jobs to specific time windows. Helps avoid scheduling resource intensive batch requests during peak activity. – For jobs which spawn parallel workers such as Auto Invoice or Payroll, set the sleep time of the Conflict Resolution Manager (CRM) to null (i.e. 10 seconds). The default value is 60 seconds.

16 Application Services Tier Concurrent Manager – Database Resource Manager Integration Define Resource Consumer Groups and associate specific concurrent programs with a resource group. Allows an administrator to constrain the amount of CPU resources used by a concurrent program. Resource Groups can also be defined for online users using the profile FND: Resource Consumer Group.

17 Application Services Tier Concurrent Manager – Transaction Managers Used for Inventory Transactions as well as other synchronous online processing. Ensure enough transaction managers exist to service the request load. Set the profile Concurrent:Wait for Available TM to 1 (second). Set TP:INV Transaction processing mode to On-line processing for small inventory requests from the UI. Set the sleep time on the transaction managers to a high number (e.g. 10 minutes). ­Avoids constant polls to check for shutdown requests. Transaction Managers can also be traced.

18 Application Services Tier Concurrent Manager – Enabling Tracing Program Level ­Enable the trace option in the concurrent program definition form. Request Level (new in 11i10) ­Use the Debug Options button in the Request Submission Form ­The profile Concurrent: Allow Debugging should be set to Yes.

19 Application Services Tier Concurrent Manager – Enabling Trace at the Program Level

20 Application Services Tier Concurrent Manager – Enabling Trace at the Request Level

21 Application Services Tier Concurrent Manager – Enabling Trace at the Request Level

22 Application Services Tier Apache – On UNIX, Apache is process based (httpd), and mods such as mod PL/SQL run within the process address space of the httpd processes. – On Windows, Apache is multi-threaded (Apache.exe). – Tune the number of processes and number of clients (httpds.conf): MinSpareServers 5 MaxSpareServers 10 StartServers 5 MaxClients 512

23 Application Services Tier Apache – Minimize levels of logging (httpds.conf): LogLevel warn SSLLogLevel warn – Enable Caching of non-HTML resources including images, style sheets, and Java script. Caches content in the browser cache. ­Reduces network round-trips (non SSL) ­Reduces network bandwidth utilization (SSL) Included in AutoConfig templates in (or higher).

24 Application Services Tier Apache – Enable Caching of non-HTML resources (httpd.conf or apps.conf) "> #enable the generation of the Expires header for files under /OA_HTML/ ExpiresActive On #expire images one month after last client access ExpiresByType image/gif "access plus 1 month" #expire stylesheets one week after the last client access ExpiresByType text/css "access plus 1 weeks" #expire javascript libraries one day after the last client access ExpiresByType text/javascript "access plus 1 days ExpiresByType application/x-javascript "access plus 1 day"

25 Application Services Tier Apache – Review Apache Access Log file to ensure images are being satisfied from the browser cache. Http code 200 (request for document) Http code 304 (request for time stamp) [23/Oct/2002:19:00: ] "GET /OA_MEDIA/FNDINVDT.gif HTTP/1.1" [25/Oct/2002:14:38: ] "GET /OA_MEDIA/FNDINVDT.gif HTTP/1.1" [25/Oct/2002:14:38: ] "GET /OA_MEDIA/FNDWATHS.gif HTTP/1.1" [25/Oct/2002:14:38: ] "GET /OA_MEDIA/FNDREDPT.gif HTTP/1.1" [25/Oct/2002:14:39: ] "GET /OA_HTML/OA.jsp?page=/oracle/apps/icx/por/rcv/pages/ReceivingHomePage&OAHP=ICXP OR_MENU&OASF=ICXPOR_RCV_HOME_PAGE&dbc=ap107fam_ipdev11i&language_code=US&transactionid=70A5819F04C0F411 HTTP/1.1" [25/Oct/2002:14:39: ] "GET /servlets/PoolMonitor?jvm HTTP/1.1" [25/Oct/2002:14:41: ] "GET /OA_HTML/US/ICXINDEX_ipdev11i.htm HTTP/1.1" [25/Oct/2002:14:41: ] "GET /OA_MEDIA/logo.gif HTTP/1.1" [25/Oct/2002:14:41: ] "GET /OA_MEDIA/appslogo.gif HTTP/1.1" [25/Oct/2002:14:41: ] "GET /OA_MEDIA/FNDJLFRL.gif HTTP/1.1" [25/Oct/2002:14:41: ] "GET /OA_MEDIA/FNDINVDT.gif HTTP/1.1" [25/Oct/2002:14:41: ] "GET /OA_MEDIA/FNDJLFRR.gif HTTP/1.1" 304 -

26 Application Services Tier Apache Mod PL/SQL – Configure a dedicated mod PL/SQL Listener Improves performance and scalability ­Significantly reduces overall number of sessions/connections. ­Reduces latency of web requests. ­Improves cursor sharing. Documented in Oracle 9i Application Server Using the PL/SQL Gateway Release 1 (v ) ­http://technet.oracle.com/docs/products/ias/doc_library/102 2doc_otn/apps.102/a90099/apptroub.htm#634180

27 Application Services Tier Apache Mod PL/SQL (dedicated listener) 1. For the main Listener running on Port 7000, edit the file $IAS_HOME/Apache/modplsql/cfg/plsql.conf as follows: Disable the mod PL/SQL service from the main listener by commenting out the lines between the two Location parameters as follows: # # SetHandler pls_handler # Order deny,allow # Allow from all # Comment out the following line as follows: # LoadModule plsql_module /d1/ias/Apache/modplsql/bin/modplsql.so

28 Application Services Tier Apache Mod PL/SQL (dedicated listener) 2. Configure the main listener to forward all mod_plsql requests to the dedicated mod PL/SQL listener by adding the following line: ProxyPass /pls/ For the dedicated mod PL/SQL Listener running on Port 8888, configure each DAD to override the default CGI environment variables in order to allow redirects. Edit the file $IAS_HOME/Apache/modplsql/cfg/wdbsvr.app and add the following line for each DAD: cgi_env_list=SERVER_NAME=mainhost.us.oracle.com,SERVER_PORT=7000,HOST=mainhos t.us.oracle.com:7000

29 Application Services Tier Apache Jserv / JVM – Minimize Jserv logging log=true log.channel.warning=true log.file=/d1/ias/Apache/Jserv/logs/jserv_7000.log – Review error log files for exceptions. – Disable auto reload in production environments: autoreload.classes=false autoreload.file=false – Use Jserv Auto Load Balancing Configure Multiple Zones. Provides higher availability and improves scalability.

30 Application Services Tier Apache Jserv / JVM – Upgrade to the latest JDK (1.4.2_08). – Do not disable hotspot or the JIT (i.e. –DCOMPILER=NONE or –Xint). – Enable verbose GC in order to optimally tune the heap sizes based on the GC traffic. Minor Collections Major Collections Elapsed Time of GC

31 Application Services Tier Apache Jserv / JVM – Enable Verbose GC Output Overload wrapper.bin with a shell wrapper in order to redirect stdout to a file. Existing: wrapper.bin=/apps/jdk/jdk1.4.2/bin/java Change To: Wrapper.bin=/apps/scripts/java.sh java.sh: ========= /apps/jdk/jdk1.4.2/bin/java -verbosegc $* >> /apps/logs/java.log

32 Application Services Tier Apache Jserv / JVM (Verbose GC Output) /apps/logs/java.log: [GC 30460K->1369K(510848K), secs] [Full GC 15135K->1686K(510848K), secs] [GC 32123K->2131K(510848K), secs] [GC 32595K->2130K(510848K), secs] [GC 32593K->2171K(510848K), secs] [GC 32635K->2419K(510848K), secs] [GC 32881K->3157K(510848K), secs] [GC 33620K->3197K(510848K), secs] [GC 33661K->3218K(510848K), secs] [GC 33674K->3309K(510848K), secs] [GC 33769K->3532K(510848K), secs] [GC 33983K->3784K(510848K), secs] [GC 34248K->4056K(510848K), secs] [GC 34520K->4404K(510848K), secs] [GC 34868K->4828K(510848K), secs] [GC 35292K->5242K(510848K), secs]

33 Application Services Tier Apache Jserv / JVM – Utilize the verbose GC output to tune the JVM heaps (-Xmx and –Xms) accordingly. – Review the frequency of collections, especially major collections (i.e. Full GC). Start with: ­-Xms256M and –Xmx512M ­-XX:NewSize=60M -XX:MaxNewSize=120M – Above settings have been incorporated in 11i10.

34 Application Services Tier Apache Jserv / JVM – Process Identification (V$SESSION) Specify the property –DCLIENT_PROCESSID in the JVM startup shell script. Set automatically in 11i10. Existing: wrapper.bin=/apps/jdk1.4.2/bin/java Change To: Wrapper.bin=/apps/scripts/java.sh java.sh: ========= #!/bin/sh /apps/jdk1.4.2/bin/java -verbosegc -DCLIENT_PROCESSID=$$ $* >> /d2/logs/java.log

35 Application Services Tier Apache Jserv / JVM – Process Identification (V$SESSION) Allows you to map the JDBC session from v$session to a particular JVM process. Set automatically in 11i10 SID MACHINE PROCESS MODULE LOGON aptier1.us.oracle.com JDBC Thin Client 12/02/04 14:26:43 42 aptier2.us.oracle.com 1723 JDBC Thin Client 12/02/04 14:27:01 43 aptier3.us.oracle.com 3201 JDBC Thin Client 12/02/04 14:28:15 44 aptier1.us.oracle.com JDBC Thin Client 12/02/04 14:29: aptier1{apps_a}-> ps -ef | grep apps_a :26:39 pts/20 0:00 /bin/sh./java.sh apps_a :26:40 pts/20 8:55 /jdk1.4.2/bin/../bin/sparc/native_threads/java

36 Application Services Tier Apache Jserv / JVM – JDK is Certified with Apps. Refer to MetaLink note for details on upgrading to the JDK ~15% performance improvement. Parallel GC (-XX:+UseParNewGC) Detail GC Statistics (-XX:+PrintGCDetails) [GC [DefNew: 2047K->0K(2112K), secs] 2472K->424K(3520K), secs] [GC [DefNew: 2047K->0K(2112K), secs] 2472K->424K(3520K), secs] [GC [DefNew: 2047K->0K(2112K), secs] 2472K->424K(3520K), secs] [GC [DefNew: 0K->0K(2112K), secs][Tenured: 20227K->227K(21416K), secs] 20227K->227K(23528K), secs] [GC [DefNew: 0K->0K(2112K), secs][Tenured: 20227K->227K(21416K), secs] 20227K->227K(23528K), secs] [GC [DefNew: 0K->0K(2112K), secs][Tenured: 20227K->227K(21416K), secs] 20227K->227K(23528K), secs]

37 Application Services Tier Apache Jserv / JVM – JDK 1.4 provides new JVM monitoring tool (jvmstat) Download from

38 Application Services Tier Java Server Pages (JSPs) – Precompile the JSPs to avoid dynamic compilation. Users experience poor performance for the initial page loads. Potential deadlocks if multiple users attempt to compile the same JSP. Potential JVM death due to OutOfMemoryException during concurrent compilation. MetaLink Document provides the instructions and the patch reference for an automated script to perform the precompilation. ­ojspCompile Script With the latest version of ojspCompile, it takes 15 minutes to compile all the JSPs.

39 Application Services Tier Java Server Pages (JSPs) – Use a separate JVM to perform the JSP compilation. Automatically set in 11i10. root.properties: servlet.oracle.jsp.JspServlet.initArgs=translate_params=true, unsafe_reload=false, page_repository_root=/appl_top/115/common/html/jsp/pagecache, alias_translation=true,developer_mode=false, javaccmd=/usr/jdk142/bin/javac,send_error=true

40 Application Services Tier Portal Tuning – Tune the number of content fetcher threads for PPE (poolSize). Default is 25. – Adjust the fetch request timeout (requesttime). – Adjust the fetch connection request timeout (stall). zone.properties: servlet.page.initArgs=poolSize=50 servlet.page.initArgs=requesttime=200 servlet.page.initArgs=stall=100

41 Application Services Tier Portal Tuning – Ensure that the mod PL/SQL cache is enabled and sized appropriately: $APACHE_TOP/modplsql/cfg/cache.cfg: [PLSQL Cache] enabled=yes total_size= cleanup_size= cleanup_interval=86400 ; [Cookie Cache] enabled=yes total_size= cleanup_size= cleanup_interval=86400 max_size = 0

42 Application Services Tier Discoverer 4i Viewer Tuning – Disable Query Prediction by setting QPPEnable=0 in pref.txt. – Set ObjectsAlwaysAccessible=1 to avoid extra workbook SQL validation, and related dictionary SQL. – Set the Query Governor option Limit retrieved query data to: to 100 rows. – Set the option After opening a worksheet: to Dont run query. – Ensure Custom workbooks define mandatory parameters.

43 Network Performance Network performance is often neglected. Networks with poor latency or low bandwidth impacts user response time. Can also impact concurrent programs if the network between the application tier and data server tier is not optimal. A direct switch should be used between the application tier and data server tier – Latency should ideally be ~1-2ms per round-trip.

44 Network Performance Use the ping command to determine the latency of requests. Vary the packet size to determine the average latency. Do not use the default ping packet size of 32 bytes. D:\>ping aptierhost.us.oracle.com -l 2048 Pinging aptierhost.us.oracle.com [ ] with 2048 bytes of data: Reply from : bytes=2048 time=371ms TTL=252 Reply from : bytes=2048 time=330ms TTL=252 Reply from : bytes=2048 time=361ms TTL=252 Reply from : bytes=2048 time=360ms TTL=252 D:\>ping aptierhost.us.oracle.com -l 512 Pinging aptierhost.us.oracle.com [ ] with 512 bytes of data: Reply from : bytes=512 time=231ms TTL=252 Reply from : bytes=512 time=210ms TTL=252 Reply from : bytes=512 time=231ms TTL=252 Reply from : bytes=512 time=220ms TTL=252

45 Network Performance Use the ping command to determine the latency between the application server and the data server. Use a packet size of 2K since this the default size for SQL*Net traffic. aptierhost{applmgr}-2-> ping -s dbtierhost 2048 PING dbtierhost.us.oracle.com: 2048 data bytes 2056 bytes from dbtierhost.us.oracle.com ( ): icmp_seq=0. time=1. ms 2056 bytes from dbtierhost.us.oracle.com ( ): icmp_seq=1. time=1. ms 2056 bytes from dbtierhost.us.oracle.com ( ): icmp_seq=2. time=1. ms 2056 bytes from dbtierhost.us.oracle.com ( ): icmp_seq=3. time=1. ms 2056 bytes from dbtierhost.us.oracle.com ( ): icmp_seq=4. time=1. ms 2056 bytes from dbtierhost.us.oracle.com ( ): icmp_seq=5. time=1. Ms ---- dbtierhost.us.oracle.com PING Statistics packets transmitted, 6 packets received, 0% packet loss round-trip (ms) min/avg/max = 1/1/1

46 Network Performance Measure the sustained bandwidth on both the client network (i.e. desktops) as well as the application-tiers. Use traceroute (or tracert) utility to determine number of hops and impact on latency. Monitor network statistics including packet rates, error rates, collisions, etc.. using tools such as netstat –i.

47 Data Server Tier Refer to the MetaLink document Database Initialization Parameters and Configuration for Oracle Applications 11i. – Ensure mandatory parameters are set correctly. Optimally configure the buffer cache and shared pool as per the workload and the number of users: – [typical configuration for 2,000 Apps users] db_block_buffers=800,000 shared_pool_size=2000M A poorly sized buffer cache results in excessive buffer gets and physical I/O. A poorly sized shared pool results in library cache and shared pool latch contention due to reloads and lack of space.

48 Data Server Tier Enable asynchronous I/O Consider using Quick I/O or equivalent if using file system based files for the DB files. – Quick I/O improves performance and scalability by simulating raw devices, and avoiding file system cache traffic for the DB files. Use locally managed temp files (uniform) for the temporary tablespace. Install Stats Pack (spcreate.sql) and use spauto.sql to automate hourly snapshots. Stats Pack reports can be used to trend transaction rates and business flows.

49 Data Server Tier Stats Pack Report (Instance Summary) STATSPACK report for DB Name DB Id Instance Inst Num Release Cluster Host GSIAP gsi1ap YES agsidbs1 Snap Id Snap Time Sessions Curs/Sess Comment Begin Snap: May-05 11:00:01 #######.0 End Snap: May-05 16:00:04 #######.0 Elapsed: (mins) Cache Sizes (end) ~~~~~~~~~~~~~~~~~ Buffer Cache: 5,313M Std Block Size: 8K Shared Pool Size: 2,864M Log Buffer: 1,024K......

50 Data Server Tier Stats Pack Report (Instance Summary) Load Profile ~~~~~~~~~~~~ Per Second Per Transaction Redo size: 462, , Logical reads: 54, , Block changes: 3, Physical reads: 2, Physical writes: User calls: Parses: Hard parses: Sorts: Logons: Executes: 1, Transactions: % Blocks changed per Read: 5.94 Recursive Call %: Rollback per transaction %: 3.18 Rows per Sort:

51 Data Server Tier Stats Pack Report (Instance Summary) Instance Efficiency Percentages (Target 100%) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Buffer Nowait %: Redo NoWait %: Buffer Hit %: In-memory Sort %: Library Hit %: Soft Parse %: Execute to Parse %: Latch Hit %: Parse CPU to Parse Elapsd %: % Non-Parse CPU: Shared Pool Statistics Begin End Memory Usage %: % SQL with executions>1: % Memory for SQL w/exec>1: Top 5 Timed Events ~~~~~~~~~~~~~~~~~~ % Total Event Waits Time (s) Ela Time db file sequential read 16,187, , CPU time 110, global cache cr request 21,410,811 66, db file scattered read 3,184,765 23, KJC: Wait for msg sends to complete 10,722,532 20,

52 Data Server Tier Stats Pack Report (Wait Events) Avg Total Wait wait Waits Event Waits Timeouts Time (s) (ms) /txn db file sequential read 16,187, , global cache cr request 21,410,811 56,241 66, db file scattered read 3,184, , KJC: Wait for msg sends to c 10,722, ,069 20, row cache lock 74,583 5,842 17, wait for unread message on b 73,977 4,624 13, SQL*Net more data to client 6,021, , enqueue 114,204 19,898 7, buffer busy global CR 516, , buffer busy waits 434, , direct path read 1,239, , inactive session 1,774 1,774 1, latch free 242,171 19,203 1, db file parallel read 121, , direct path write 1,270, , log file sync 604, , SQL*Net message from dblink 20, ,

53 Data Server Tier Review Top 5 Timed Events section in the Stats Pack reports to determine the overall instance utilization. For latch free waits, latch contention is often a symptom due to a legitimate problem such as non- sharable SQL, sub-optimal SQL which performs full table or full index scans, dynamic object creation/removal, etc.. – Review the latch Statistics section of the Stats Pack report to determine the hot latches. – Enable tracing for a few of the sessions waiting on the latch as well as the holder to determine the actual cause.

54 Data Server Tier Stats Pack Report (Expensive SQL) CPU Elapsd Physical Reads Executions Reads per Exec %Total Time (s) Time (s) Hash Value ,413, ,413, Module: ALECDC SELECT distinct ooha.order_number, fu.user_name, rac.cu stomer_name, to_char(wctc.last_update_date, 'DD-MON-YY hh24:mi '), DECODE(SUBSTR(wctc.comments, 1, 21), 'NOTE: This Order-Line', wctc.process_flag || ': manually scre ened', DECODE(wctc.process_flag,'101','101: host u 2,229, ,229, Module: ALECDC select distinct pv.segment1, nvl(pv.vendor_name_a lt, pv.vendor_name), ai.invoice_num, hr.name, from po_vendors pv, ap_invoices_all ai, ap_holds_all ah, hr_organi zation_units hr where ai.payment_status_flag||''='Y' and 1,990, ,990, Module: OKILOADDR BEGIN OKI_REFRESH_PUB.REFRESH_ADDRS( :errbuf, :rc ); END;

55 Data Server Tier Monitor CPU and Memory Utilization Monitor paging Monitor I/O statistics, including service times. Review Stats Pack reports and correlate top SQL to the business flows. Review expensive custom SQL

56 Data Server Tier Gathering Statistics – Do not gather statistics excessively on entire schemas or the entire database such as nightly or weekly. – Do not gather statistics on permanent objects during peak intervals. Gathering statistics invalidates cursors Gathering statistics requires dictionary and object level locks. Plans are not likely to change if the data distribution has not changed.

57 Data Server Tier Gathering Statistics – For tables which are growing at a rapid rate, gather statistics only on those tables. – Use only FND_STATS or the Gather Schema and Gather Table Statistics Concurrent Programs Do NOT USE the analyze nor dbms_stats command directly. It is not supported, and results in sub- optimal plans. – Review the table and index statistics for the objects which appear in the top SQL section of Stats Pack.

58 Data Server Tier Gathering Statistics Enhancements (11i10) – Gather Schema Statistics Auto Gather option ­Gather Statistics only on tables which have changed ­Change threshold is user definable. ­Utilizes the Table Monitoring feature. To enable schema monitoring: ­SQL> exec fnd_stats.ENABLE_SCHEMA_MONITORING() Auto List option ­Lists the objects which have changed. Maintain history of Statistics Collection No Invalidate Option ­Does not invalidate cursors.

59 Data Server Tier Gathering Statistics Enhancements (11i10)

60 Data Server Tier Verifying the Statistics SQL> set serveroutput on SQL> exec apps.fnd_stats.verify_stats ('ONT','OE_ORDER_LINES_ALL'); =================================================================================================== Table OE_ORDER_LINES_ALL =================================================================================================== last analyzed sample_size num_rows blocks : Index name last analyzed num_rows LB DK LB/key DB/key CF OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_N : OE_ORDER_LINES_U : Histogram Stats Schema Table Name Status last analyzed Column Name ONT OE_ORDER_LINES_ALL present :59 OPEN_FLAG

61 Data Server Tier Verifying the Statistics – Column Statistics SQL> set serveroutput on SQL> exec apps.fnd_stats.verify_stats ('ONT','OE_ORDER_LINES_ALL',0,TRUE); =================================================================================================== Table OE_ORDER_LINES_ALL =================================================================================================== last analyzed sample_size num_rows blocks : Column Stats Column name sample_size num_distinct num_nulls density last analyzed ACCOUNTING_RULE_DURATION :51 ACCOUNTING_RULE_ID :34... BOOKED_FLAG :51... CANCELLED_FLAG :51... LINE_ID :34 LINE_NUMBER :34 LINE_SET_ID :34 OPTION_NUMBER :51 ORDERED_ITEM_ID :34 UPGRADED_FLAG :51 VEH_CUS_ITEM_CUM_KEY_ID :34 VISIBLE_DEMAND_FLAG :51

62 Data Server Tier Enable the Auto memory manager – Pga_aggregate_target can be set to tune the PGA for the entire instance. – Automatically tunes hash area and sort area sizes – Returns unused memory to the OS. Enable System Managed Undo – No more ORA-1555s!!! – Set undo_retention to the length of the longest running request. Utilize Auto Segment Tablespace Management – No need to manually set Freelist/freelist groups. A bitmap is used to automatically scale the segment related parameters. Enable PL/SQL Native Compilation – Improves PL/SQL execution performance. – Improves scalability by removing a lot of stress off of the shared pool.

63 Data Server Tier New Tablespace Model for the eBusiness Suite: – Consolidates the number of Apps tablespaces from 400 tablespaces to 10. – Optimizes performance via the wide stripe model. – Ideal for customers migrating to RAC or migrating to raw devices. – Uniform extents, locally managed No more fragmentation! – Migration script can be used to migrate a schema at a time.

64 Data Server Tier New Tablespace Model for the eBusiness Suite: – Objects are classified by object type and access patterns: Transaction tables Transaction indexes Reference/SEED Interface Summary Management Archive NoLogging Queue Media Temporary Undo System Total = 12 Tablespaces

65 Data Server Tier Applications Tablespace Migration Utility – MetaLink note – ARU # is Migration timings: (complete migration) – 1.4 Terabyte customer DB 24 hours New size of DB after migration (850 GB). – 250 GB customer DB 4 hours New size of DB after migration (150 GB).

66 Application Tuning Review the MetaLink note Recommended Performance Patches for the Oracle E- Business Suite, – Recommended performance patches for all the modules and tech. stack components are consolidated in this note.

67 Application Tuning Workflow – When starting background engines via Concurrent Manager, set the Process Stuck parameter to No. – Start a separate background engine to handle stuck processes with a very low frequency such as once or twice a day. – Use deferred activities to improve online response times and facilitate asynchronous processing for flows such as Scheduling, PO Document Approval, etc.. – Establish a regular frequency for purging Workflow runtime data (FNDWFPR - Purge Obsolete Workflow Runtime Data).

68 Application Tuning Order Management – OM Pack J contains numerous performance fixes including Pricing performance fixes. – Ensure that debugging is disabled: OM: Debug Level, set to 0 for OFF QP: Debug Mode, set to Request Viewer Off WSH: Debug Enabled, set to No WSH: Debug Level, set to 0 for OFF – Use the streamlined workflows. Removes unnecessary activities and sub-processes. Improves performance and amount of WF data significantly. New streamlined flow in ­Line Flow – Generic: Performance Refer to MetaLink note

69 Application Tuning Order Management – For online order entry, use the new Quick Sales Order Form Provides a checkbox deferred pricing which can be used to defer price calculation until the order is saved. Also improves overall speed of order entry from a functional / navigational perspective. – Enable AutoScheduling – Use deferred activities Tax Calculation Credit Check

70 Application Tuning Payroll – Tune the number of threads, chunk size and the buffer sizes (pay_action_parameters): THREADS=25 CHUNK_SIZE = 20 BAL BUFFER SIZE=550 EE BUFFER SIZE =550 RR BUFFER SIZE =550 COST BUFFER SIZE=550 – Set threads to times the number of data server processors. – Set LOW_VOLUME=N to enable optimal plans.

71 Application Tuning OA Framework Applications – Refer to MetaLink note (Recommended Patches for Applications) and MetaLink note (Framework Roadmap). – If running FWK 5.7, ensure that you are running the latest rollup patch for 5.7H. Refer to MetaLink note – Upgrade to the latest 9iR2 JDBC Drivers (MetaLink note ) – Pool Monitor can be used to monitor the resource utilization Application Module Pool Memory Utilization JVM Properties Pre 11i10: https:// /servlet/OAAppModPoolMonitorhttps:// /servlet/OAAppModPoolMonitor 11i10: Login->Diagnostics->Show Pool Monitor.

72 Application Tuning OA Framework Applications (Pool Monitor)

73 Application Tuning OA Framework Applications (Pool Monitor)

74 Application Tuning (OA) Tracing Framework Applications – Set profile FND : Diagnostics to Yes at user level – Login to Self Service as the above user – Click on Diagnostics icon at the top of page – Select Set Trace Level and click Go – Select the desired trace level and click Save – Perform the activity that you want to trace – Exit application

75 Application Tuning (OA) Tracing Framework Applications

76 Application Tuning AOLJ Connection Pool (dbc configuration) – $FND_TOP/secure/.dbc Number of DB connections used by the Java based Self- Service Applications. ­Start with a reasonable default such as 100 or 200. FND_JDBC_MAX_CONNECTIONS=200 ­Tune FND_JDBC_MAX_CONNECTIONS as per the amount of user concurrency (per JVM). AOLJ automatically decays idle connections and resizes the pool.

77 Application Tuning AOLJ Connection Pool (dbc configuration) – Disable sanity checks in production environments FND_JDBC_USABLE_CHECK=false FND_JDBC_PLSQL_RESET=false – Reduce the number of OXTA JDBC connections In jserv.properties file, add the following entries ­wrapper.bin.parameters=-DOXTAOutThreads=1 ­wrapper.bin.parameters=-DOXTAInPoolSize=1 If running multiple JVMs, the OXTA connections can be a significant portion of the total JDBC connections. Automatically set in 11i10

78 Application Tuning AOLJ Connection Pool (dbc configuration) – AOLJ Supports the use of Services for RAC load balancing or failover. Patch allows the use of service names in the configuration: ­New dbc parameter APPS_JDBC_URL ­Used in place of DB_HOST, DB_NAME, DB_PORT ­Useful for automatic connection load balancing (ADDRESS=(PROTOCOL=TCP)(HOST=ap201ops)(PORT=1526))(ADDRESS=(PROTOCOL=TCP)(HO ST=ap202ops)(PORT=1526)))(CONNECT_DATA=(SERVICE_NAME=opsperf)))

79 Application Tuning AOLJ Connection Pool Monitoring – Use the JSP (AoljDbcPoolStatus.jsp) to monitor the connection pool status. Lists DBC configuration parameter settings. Connection Statistics ­Locked Connections ­Available Connections ­Closed Connections ­Allows drill-downs to determine source of the connection. –

80 Application Tuning Connection Pool Status (AoljDbcPoolStatus.jsp)

81 Application Tuning Purging – Implement a regular purge process including transient data as well as obsolete transactional data. – Archive system related entities prior to purge such as FND_CONCURRENT_REQUESTS ICX_SESSIONS – Purge old data before performing upgrades.

82 Application Tuning ProductConcurrent Program Name FNDPurge Concurrent Request and/or Manager Data Purge "Sign on" Audit data General LedgerGL Archive and Purge AssetsMass Additions Purge Report Purge accounting tables PayablesPurge ReceivablesArchive and Purge Order ManagementOrder Purge Purging

83 Order Management – Significant improvements in pricing and order management. 11i10 Performance Improvements

84 Order Management – New Java Pricing Engine 11i10 Performance Improvements

85 Inventory / Shipping – 20% improvement in Pick Release. – 25% improvement in Interface Trip Stop. – 2X improvement in Ship Confirm. 11i10 Performance Improvements

86 Workflow Improvements – Java Mailer Parallel worker support 15,000 notifications per hour (per worker) – Workflow engine runtime Improved Caching ­Asset Import (5X) ­Order Management (5%) – Integration with GSM Business Event Listener Mailer 11i10 Performance Improvements

87 Payroll Improvements – New Run Balances Architecture (HRMS FP F) – Improves reporting performance significantly (~90%): TRR – 95%+ Payroll Register – 90%+ – US and Canadian Forms and Reports utilize the new Balance Reporting Architecture. – Custom reports which utilize the balance user exit also benefit from the new run balances arch. – Payroll run improves by 15%. Suppression of zero and null balances provides an additional 10% performance improvement. 11i10 Performance Improvements

88 TCA Customer Import – Completely rewritten. – Requires 9iR2 (or higher). – Scales well with parallel workers. – 300K customers per hour per worker – 1 million customers imported in one hour using 4 workers. 11i10 Performance Improvements

89 TCA Customer Import 11i10 Performance Improvements

90 11i10 Tracing Improvements – Ability to enable all levels of SQL trace as well as PL/SQL profiler from Forms, Framework based pages, and Concurrent Programs. – Help->About Oracle Applications shows performance information including time spent in the Form and time spent in the DB. – For concurrent programs, tracing can be enabled at the program definition level and at the request level. – Trace file identifier is automatically set to the Applications user name prod11i_ora_2738_BASMITH.trc – New Report (PL/SQL Profiler) Generates an HTML report of the PL/SQL profiler data. 11i10 Performance Improvements

91 11i10 Tracing Improvements (PL/SQL Profiler Report) 11i10 Performance Improvements

92 11i10 Tracing Improvements (PL/SQL Profiler Report) 11i10 Performance Improvements

93 11i10 Tracing Improvements (Performance Info.) 11i10 Performance Improvements

94 FND_STATS Improvements: – No invalidate option can be used to avoid invalidating cursors while gathering statistics. – Auto Gather has been added to allow statistics to be gathered only on those objects which have changed. Change threshold is configurable. Default is 10%. Significantly reduces the time to gather statistics. Improves manageability as FND_STATS automatically determines changed object list. – Maintain history of all gather stats requests. – Automatically determines degree of parallelism. 11i10 Performance Improvements

95 Configuration Enhancements – Reviewed and optimized default settings for the entire stack via AutoConfig templates including: Forms JDK DB Concurrent Manager Discoverer AOLJ DBC – Customer Sequence Cache settings are preserved across patches/upgrades if current setting exceeds standard default. – AutoConfig support for complex configurations including RAC, Load Balancing, Firewalls, etc.. 11i10 Performance Improvements

96 Significant reduction in patching downtime – Parallelized large table updates. – FNDLOAD Improvements 15% for small LDTs Orders of magnitude for large LDTs. – Improvements to distributed AD. – Large indexes are now created in parallel. – APPS_MRC schema has been eliminated. – Optimized PL/SQL recompilation order for invalid objects. 11i10 Performance Improvements

97 MetaLink References Note #:Description: E-Business Suite Recommended Patch List Upgrading Developer 6i with Oracle Applications 11i Canceling Long Running Queries in Oracle Applications 11i Upgrading Oracle JDBC Drivers with Oracle E-Business Suite 11i Implementing and Using the JSP Precompiler Database Initialization Parameters and Configuration for Oracle Applications 11i Recommended Performance Patches for Oracle E-Business Suite Using J2SE Version 1.4 with Oracle E-Business Suite 11i, Release or Higher Oracle Applications Tablespace Model Release 11i - Tablespace Migration Utility About OA Framework Mini-pack 11i.FWK.H Oracle Applications Framework Release 11i Documentation Road Map

98 A Q & Q U E S T I O N S A N S W E R S


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