Huge TTL_WAIT_TIME in EBS

Question

Hi Gurus ,
I am using oracle apps 12.0.4 and database is 10.2.0.5. having integrated SOA. I have gather stats run weekly at default 10% with gather_auto option.
when i query the active_session_history , i am getting the below result .
TTL_WAIT_TIME     USER_ID     USERNAME     SQL_TEXT
117644954     44     APPS     call EGO_ITEM_OPEN_INTERFACE_PVT.item_open_interface_process( :1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14, :15)
117381046     44     APPS     BEGIN WF_EVENT.LISTEN  (  p_agent_name => :1, p_wait => :2, p_correlation => :3, p_deq_condition => null, p_message_count => :4, p_max_error_count => :5  ); END;
105046009     44     APPS     SELECT PROFILE_OPTION_ID, APPLICATION_ID, SITE_ENABLED_FLAG , APP_ENABLED_FLAG , RESP_ENABLED_FLAG , USER_ENABLED_FLAG, ORG_ENABLED_FLAG , SERVER_ENABLED_FLAG, SERVERRESP_ENABLED_FLAG, HIERARCHY_TYPE, USER_CHANGEABLE_FLAG FROM FND_PROFILE_OPTIONS WHERE PROFILE_OPTION_NAME = :B1 AND START_DATE_ACTIVE <= SYSDATE AND NVL(END_DATE_ACTIVE, SYSDATE) >= SYSDATE
26348719     44     APPS     call EGO_ITEM_OPEN_INTERFACE_PVT.process_item_entities( :1, :2, :3, :4, :5)
12332122     44     APPS     begin dbms_aqin.aq$_dequeue_in( :1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14, :15, :16, :17, :18, :19, :20, :21, :22, :23, :24, :25, :26, :27, :28, :29); end;
1543581     288     MANAGE_PRODUCT_CAPABILITY     SELECT COUNT(SEGMENT1) FROM APPS.MTL_SYSTEM_ITEMS_B MSI WHERE MSI.ORGANIZATION_ID = :B3 AND MSI.DESCRIPTION = :B2 AND ITEM_CATALOG_GROUP_ID = :B1
1074827     288     MANAGE_PRODUCT_CAPABILITY     SELECT MAX(REVISION) KEEP(DENSE_RANK LAST ORDER BY IMPLEMENTATION_DATE) FROM APPS.MTL_ITEM_REVISIONS_B MIR WHERE MIR.INVENTORY_ITEM_ID = :B2 AND MIR.ORGANIZATION_ID = :B1
901386     313     ORAESB     SELECT ID,SERVICE_GUID,OPERATION_GUID FROM ESB_RELATION_XML WHERE IS_STALE='N'
718273     284     DERBYDBA     SELECT "SEGMENT_TYPE","TABLESPACE_NAME" FROM "DBA_SEGMENTS" "C" WHERE "SEGMENT_TYPE"<>'CACHE' AND "SEGMENT_TYPE"<>'TEMPORARY'
678656     44     APPS     SELECT * FROM (select request_id, program, requested_start_date, UserPhase, SswaStatus, phase_code, requested_by, responsibility_application_id, responsibility_id, OFileStatus, program_application_id, program_short_name, request_date, decode(phase_code, 'C', decode(OFileStatus, NULL, NULL, phase_code), phase_code) as republish from (select  request_id, program, requested_start_date,  fnd_conc_sswa.get_phase(phase_code, status_code, hold_flag, enabled, requested_start_date, request_id) as UserPhase, decode(fnd_conc_sswa.get_sswa_status(phase_code, status_code, hold_flag, enabled, requested_start_date, request_id),'C','Fndcpnormalicon', 'G', 'Fndcpwarningicon', 'E', 'Fndcperroricon', 'H','Fndcponholdicon',NULL) as SswaStatus, phase_code, requested_by, responsibility_application_id, responsibility_id, decode(fnd_conc_sswa.get_ofile_status(request_id),'Y', 'Fndcpreqoutput', NULL) as OFileStatus, program_application_id, program_short_name, request_date from  fnd_conc_req_summary_v)) QRSLT 
632531     44     APPS     SELECT /*+ ORDERED USE_NL (WIASP WI WPAP WAP)                 INDEX (WIASP WF_ITEM_ACTIVITY_STATUSES_N1) */ WIASP.ROWID ROW_ID FROM WF_ITEM_ACTIVITY_STATUSES WIASP, WF_ITEMS WI, WF_PROCESS_ACTIVITIES WPAP, WF_ACTIVITIES WAP WHERE WIASP.PROCESS_ACTIVITY = WPAP.INSTANCE_ID AND WPAP.ACTIVITY_ITEM_TYPE = WAP.ITEM_TYPE AND WPAP.ACTIVITY_NAME = WAP.NAME AND WIASP.ITEM_TYPE = WI.ITEM_TYPE AND WIASP.ITEM_KEY = WI.ITEM_KEY AND WI.BEGIN_DATE >= WAP.BEGIN_DATE AND WI.BEGIN_DATE < NVL(WAP.END_DATE, WI.BEGIN_DATE+1) AND WAP.TYPE = 'PROCESS' AND WIASP.ACTIVITY_STATUS = 'ACTIVE' AND NOT EXISTS (SELECT NULL FROM WF_ITEM_ACTIVITY_STATUSES WIASC, WF_PROCESS_ACTIVITIES WPAC WHERE WAP.ITEM_TYPE = WPAC.PROCESS_ITEM_TYPE AND WAP.NAME = WPAC.PROCESS_NAME AND WAP.VERSION = WPAC.PROCESS_VERSION AND WPAC.INSTANCE_ID = WIASC.PROCESS_ACTIVITY AND WIASC.ITEM_TYPE = DECODE(WAP.DIRECTION, WAP.DIRECTION, WI.ITEM_TYPE, WI.ITEM_TYPE) AND WIASC.ITEM_KEY = WI.ITEM_KEY AND WIASC.ACTIVITY_STATUS IN ('ACTIVE', 'NOTIFIED', '
574161     44     APPS     begin :v1 := WF_RULE.DEFAULT_RULE(:v2, :v3); end;
527682     312     ORABPEL     SELECT ID, TYPE FROM BPELNOTIFICATION WHERE STATUS IN (  :1,:2)
511264     313     ORAESB     INSERT INTO ESB_ACTIVITY(ID,FLOW_ID,SUB_FLOW_ID,SOURCE,OPERATION_GUID,TIMESTAMP,TYPE,RR_OUTPUT_STATUS,ADDI_INFO,SEQ,SUB_FLOW_SEQ) VALUES (:1,:2,:3,:4,:5,:6,:7,:8,:9,:10,:11)
494894     44     APPS     INSERT INTO FND_LOBS(FILE_ID,FILE_CONTENT_TYPE,FILE_DATA,FILE_FORMAT) VALUES (:1,:2,:3,:4)
478690     312     ORABPEL     INSERT INTO audit_details ( cikey, domain_ref, detail_id, bin_csize, bin_usize, bin, ci_partition_date ) VALUES ( :1, :2, :3, :4, :5, :6, :7 )Please find the below objects as well
OBJECT_NAME     OBJECT_TYPE     EVENT     TTL_WAIT_TIME
SYS_LOB0000816513C00003$$     LOB PARTITION          150585281
WF_DEFERRED_N1     INDEX          117209951
XXBT_MTL_SYSTEM_ITEMS_B_BMIDX1     INDEX     enq: TX - row lock contention     107853535
EGO_MTL_SY_ITEMS_EXT_B     TABLE PARTITION     db file scattered read     65682568
BT_CPE_XML_CLOB     TABLE          30547891
ESB_RELATION_XML     TABLE     db file scattered read     20255735
BT_CPE_ERROR_MESSAGES     TABLE     db file scattered read     15497714
EGO_MTL_SY_ITEMS_EXT_B     TABLE PARTITION     read by other session     13533807
WF_BES_SUBSCRIBER_PINGS_N2     INDEX          7442850
FND_STATS_HIST     TABLE     enq: KO - fast object checkpoint     4224805
EGO_MTL_SY_ITEMS_EXT_B     TABLE PARTITION     db file sequential read     4120255
DR$EGO_ITEM_TEXT_TL_CTX1$X     INDEX     db file sequential read     3808679
XXBT_PIM2PIM_LOG     TABLE          3058168
MTL_SYSTEM_ITEMS_B     TABLE     db file sequential read     2095799
FND_GRANTS     TABLE          2022852
PMF_ITEM_PUBLISH     TABLE     db file scattered read     1825306can you please help to reduce the wait time .
Regards,
DBApps
Edited by: 982868 on May 1, 2013 6:45 AM

Answer 1

Do you purge those tables (or some of them) on regualr basis?
Do you have the statistics collected up to date?
How To Rebuild The WF_DEFERRED Queue [ID 286394.1]
CPU Intensive Querries Due To FTS on WF_DEFERRED [ID 463242.1]
How To Manage, Reduce, and/or Purged The FND_LOBS Table? [ID 1288149.1]
How To Purge Attachement Data from FND_LOBS [ID 395790.1]
Questions on Purge Obsolete Generic File Manager Data [ID 1165208.1]
Resolving Issues Where Application Queries are Waiting To Often for 'db file scattered read' Operations [ID 1475785.1]
Resolving Issues Where Application Queries are Waiting Too Frequently for 'db file sequential read' Operations [ID 1475825.1]
Resolving Issues Where 'db file scattered read' Waits are Seen Due to IO Performance Problems [ID 1476092.1]
Resolving Issues Where Application Queries are Waiting Too Long for 'db file sequential read' Operations Due to Underlying I/O Issues [ID 1477209.1]
WAITEVENT: "db file scattered read" Reference Note [ID 34558.1]
WAITEVENT: "db file sequential read" Reference Note [ID 34559.1]
Thanks,
Hussein