Query waiting for objects...
Hi,
I have a Pl/Sql query which when run is taking a long time to execute.
When i put a trace on it, i found that it is waiting for 2 objects and as soon as the wait is over the query produces the output immediately.
I tried puuting index on tables which had large records as i thought initially that it might be waiting due to full table scan, but its not of much help.
Earlier this query used to run within 5 minutes some 3 months back, but now it is taking about 1 hour daily and when the trace is on, it shows again it is waiting for 2 objects.
What im thinking is that, earlier when the query used to run within 5 minutes the data involved was not that heavy, but since the last 2 months the data is in millions every month.
Could you suggest me a possible solution to this problem of waiting for objects.
Thanks.
Database version being used - Oracle 10g
Hi,
When i put a trace on it, i found that it is waiting for 2 objects and as soon as the wait is over the query produces the output immediately.'it is waiting for 2 objects?' What exactly do you mean by that?
If you've done a trace then why didn't you post the tkprof output?
Please post the tkprof output (including wait events) and your PL/SQL procedure (or a representative piece of sample code)
Put this tag => before and after your tkprof output/code examples, so it says readable.
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Post Operating System (OS) name & version for DB server system.
Post results of SELECT * from v$version.
Now CUT the commands & results & PASTE (post) them back here.
ALTER SESSION SET SQL_TRACE=TRUE;
-- invoke the problem SQL here
ALTER SESSION SET SQL_TRACE=FALSE;
now find the trace file within ./udump folder
tkprof <trace_file.trc> trace_results.txt explain=<username>/<password>
post the contents of trace_results.txt back here
when application "gets stuck" run the following SQL from different session
SELECT DECODE(request,0,'Holder: ','Waiter: ')||sid sess,
id1, id2, lmode, request, type
FROM V$LOCK
WHERE (id1, id2, type) IN
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ORDER BY id1, request
/ -
Getting deadlock detected while waiting for resource error for select Query.....
Hi all,
i am getting a below error whenever executing the below select query....
some times it will show dead lock detected while waiting for resource and terminated...
some times it executes and gives result..
but all the time it writes an alert to alert log
Plesae suggest how to resolve the issue..........
Thanks in advance
Env: Linux / Oracle 11.2.0.3.3
Error from alert log:
Errors in file /u01/oracle/oracle/diag/rdbms/bdrdb/bdrdb/trace/bdrdb_p017_6076.trc:
ORA-00060: deadlock detected while waiting for resource
ORA-10387: parallel query server interrupt (normal)
Trace file info... bdrdb_p017_6076.trc:
Trace file /u01/oracle/oracle/diag/rdbms/bdrdb/bdrdb/trace/bdrdb_p017_6076.trc
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /u01/oracle/oracle/product/11.2.0/dbhome_1
System name: Linux
Node name: bdrdb.cteplindia.com
Release: 2.6.18-308.el5PAE
Version: #1 SMP Fri Jan 27 17:40:09 EST 2012
Machine: i686
Instance name: bdrdb
Redo thread mounted by this instance: 1
Oracle process number: 92
Unix process pid: 6076, image: [email protected] (P017)
*** 2013-11-04 23:18:57.915
*** SESSION ID:(423.59970) 2013-11-04 23:18:57.915
*** CLIENT ID:() 2013-11-04 23:18:57.915
*** SERVICE NAME:(bdrdb) 2013-11-04 23:18:57.915
*** MODULE NAME:() 2013-11-04 23:18:57.915
*** ACTION NAME:() 2013-11-04 23:18:57.915
*** 2013-11-04 23:18:57.915
DEADLOCK DETECTED ( ORA-00060 )
[Transaction Deadlock]
Deadlock graph:
---------Blocker(s)-------- ---------Waiter(s)---------
Resource Name process session holds waits process session holds waits
PS-00000001-00000011 92 423 S 33 128 S X
BF-2ed08c01-00000000 33 128 S 92 423 S X
session 423: DID 0001-005C-00081126 session 128: DID 0001-0021-00067D23
session 128: DID 0001-0021-00067D23 session 423: DID 0001-005C-00081126
DEADLOCK DETECTED ( ORA-00060 )
[Transaction Deadlock]
Deadlock graph:
---------Blocker(s)-------- ---------Waiter(s)---------
Resource Name process session holds waits process session holds waits
PS-00000001-00000011 92 423 S 33 128 S X
BF-2ed08c01-00000000 33 128 S 92 423 S X
session 423: DID 0001-005C-00081126 session 128: DID 0001-0021-00067D23
session 128: DID 0001-0021-00067D23 session 423: DID 0001-005C-00081126
Rows waited on:
Session 423: no row
Session 128: obj - rowid = 00021DC1 - AAAh3BAAVAAAQL/AAA
(dictionary objn - 138689, file - 21, block - 66303, slot - 0)
----- Information for the OTHER waiting sessions -----
Session 128:
sid: 128 ser: 46176 audsid: 1836857 user: 102/DBLOCAL
flags: (0x8000041) USR/- flags_idl: (0x1) BSY/-/-/-/-/-
flags2: (0x40009) -/-/INC
pid: 33 O/S info: user: oracle, term: UNKNOWN, ospid: 31611
image: [email protected]
client details:
O/S info: user: masked, term: masked, ospid: 5924:568
machine: masked program: Toad.exe
application name: TOAD background query session, hash value=526966934
current SQL:
application name: TOAD background query session, hash value=526966934
current SQL:
SELECT DISTINCT B_FP_TEST.TEST_ID
FROM B_FP_TEST,
B_USER_INFO,
J_FP_INVESTIGATOR,
L_TEST_STATUS,
L_ATMS_TEST_TYPE,
j_op_test_anml
WHERE B_FP_TEST.TEST_ID = J_FP_INVESTIGATOR.TEST_ID
AND B_FP_TEST.TEST_TYPE_ID = L_ATMS_TEST_TYPE.ATMS_TEST_TYPE_ID
AND B_USER_INFO.B_USER_INFO_ID = J_FP_INVESTIGATOR.INVESTIGATOR_ID
AND B_FP_TEST.STATUS_ID = L_TEST_STATUS.STATUS_ID
AND B_FP_TEST.IS_DELETED = :"SYS_B_00"
AND B_FP_TEST.TEST_NUM NOT IN (:"SYS_B_01", :"SYS_B_02", :"SYS_B_03")
AND L_ATMS_TEST_TYPE.IS_DELETED = :"SYS_B_04"
AND J_FP_INVESTIGATOR.is_pi = :"SYS_B_05"
AND L_TEST_STATUS.STATUS IN (:"SYS_B_06", :"SYS_B_07", :"SYS_B_08")
AND j_op_test_anml.test_id = B_FP_TEST.TEST_ID
----- End of information for the OTHER waiting sessions -----
*** 2013-11-04 23:18:57.916
dbkedDefDump(): Starting a non-incident diagnostic dump (flags=0x0, level=3, mask=0x0)
----- Error Stack Dump -----
ORA-00060: deadlock detected while waiting for resource
ORA-10387: parallel query server interrupt (normal)
----- SQL Statement (None) -----
Current SQL information unavailable - no cursor.
----- Call Stack Trace -----
calling call entry argument values in hex
location type point (? means dubious value)
More......
Query:
SELECT DISTINCT B_FP_TEST.TEST_ID
FROM B_FP_TEST,
B_USER_INFO,
J_FP_INVESTIGATOR,
L_TEST_STATUS,
L_ATMS_TEST_TYPE,
j_op_test_anml
WHERE B_FP_TEST.TEST_ID = J_FP_INVESTIGATOR.TEST_ID
AND B_FP_TEST.TEST_TYPE_ID = L_ATMS_TEST_TYPE.ATMS_TEST_TYPE_ID
AND B_USER_INFO.B_USER_INFO_ID = J_FP_INVESTIGATOR.INVESTIGATOR_ID
AND B_FP_TEST.STATUS_ID = L_TEST_STATUS.STATUS_ID
AND B_FP_TEST.IS_DELETED = 0
AND B_FP_TEST.TEST_NUM NOT IN (1, 2, 99)
AND L_ATMS_TEST_TYPE.IS_DELETED = 0
AND J_FP_INVESTIGATOR.is_pi = 1
AND L_TEST_STATUS.STATUS IN ('Scheduled', 'In-Progress', 'Completed')
AND j_op_test_anml.test_id = B_FP_TEST.TEST_ID
AND ( (j_op_test_anml.end_date BETWEEN TO_DATE ('28-Oct-2013') - 1
AND TO_DATE ('04-Nov-2013') + 1)
OR (j_op_test_anml.start_date BETWEEN TO_DATE ('28-Oct-2013') - 1
AND TO_DATE ('04-Nov-2013') + 1)
OR (TO_DATE ('28-Oct-2013') BETWEEN j_op_test_anml.start_date
AND j_op_test_anml.end_date)
OR (TO_DATE ('04-Nov-2013') BETWEEN j_op_test_anml.start_date
AND j_op_test_anml.end_date))
AND L_ATMS_TEST_TYPE.IS_DELETED = 0
AND B_FP_TEST.DATASOURCE_ID = 9
Query Exp plan:
Plan hash value: 3398228788
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop | TQ |IN-OUT| PQ Distrib |
| 0 | SELECT STATEMENT | | 1501 | 102K| 1929 (1)| 00:00:24 | | | | | |
| 1 | HASH UNIQUE | | 1501 | 102K| 1929 (1)| 00:00:24 | | | | | |
| 2 | CONCATENATION | | | | | | | | | | |
| 3 | PX COORDINATOR | | | | | | | | | | |
| 4 | PX SEND QC (RANDOM) | :TQ30005 | 241 | 16870 | 800 (1)| 00:00:10 | | | Q3,05 | P->S | QC (RAND) |
|* 5 | HASH JOIN | | 241 | 16870 | 800 (1)| 00:00:10 | | | Q3,05 | PCWP | |
| 6 | PX RECEIVE | | 246 | 15990 | 797 (1)| 00:00:10 | | | Q3,05 | PCWP | |
| 7 | PX SEND HASH | :TQ30004 | 246 | 15990 | 797 (1)| 00:00:10 | | | Q3,04 | P->P | HASH |
|* 8 | HASH JOIN | | 246 | 15990 | 797 (1)| 00:00:10 | | | Q3,04 | PCWP | |
| 9 | PX RECEIVE | | 573 | 29223 | 793 (1)| 00:00:10 | | | Q3,04 | PCWP | |
| 10 | PX SEND HASH | :TQ30003 | 573 | 29223 | 793 (1)| 00:00:10 | | | Q3,03 | P->P | HASH |
|* 11 | HASH JOIN | | 573 | 29223 | 793 (1)| 00:00:10 | | | Q3,03 | PCWP | |
| 12 | BUFFER SORT | | | | | | | | Q3,03 | PCWC | |
| 13 | PX RECEIVE | | | | | | | | Q3,03 | PCWP | |
| 14 | PX SEND BROADCAST | :TQ30000 | | | | | | | | S->P | BROADCAST |
| 15 | NESTED LOOPS | | | | | | | | | | |
| 16 | NESTED LOOPS | | 485 | 20855 | 781 (0)| 00:00:10 | | | | | |
| 17 | TABLE ACCESS BY GLOBAL INDEX ROWID| J_OP_TEST_ANML | 485 | 10185 | 296 (0)| 00:00:04 | ROWID | ROWID | | | |
|* 18 | INDEX RANGE SCAN | IDX$$_2D190001 | 485 | | 4 (0)| 00:00:01 | | | | | |
|* 19 | INDEX UNIQUE SCAN | FT_TEST_ID_PK | 1 | | 0 (0)| 00:00:01 | | | | | |
|* 20 | TABLE ACCESS BY GLOBAL INDEX ROWID | B_FP_TEST | 1 | 22 | 1 (0)| 00:00:01 | ROWID | ROWID | | | |
| 21 | PX BLOCK ITERATOR | | 70382 | 549K| 11 (0)| 00:00:01 | | | Q3,03 | PCWC | |
|* 22 | TABLE ACCESS FULL | J_FP_INVESTIGATOR | 70382 | 549K| 11 (0)| 00:00:01 | | | Q3,03 | PCWP | |
| 23 | BUFFER SORT | | | | | | | | Q3,04 | PCWC | |
| 24 | PX RECEIVE | | 3 | 42 | 3 (0)| 00:00:01 | | | Q3,04 | PCWP | |
| 25 | PX SEND HASH | :TQ30001 | 3 | 42 | 3 (0)| 00:00:01 | | | | S->P | HASH |
|* 26 | TABLE ACCESS FULL | L_TEST_STATUS | 3 | 42 | 3 (0)| 00:00:01 | | | | | |
| 27 | BUFFER SORT | | | | | | | | Q3,05 | PCWC | |
| 28 | PX RECEIVE | | 30 | 150 | 3 (0)| 00:00:01 | | | Q3,05 | PCWP | |
| 29 | PX SEND HASH | :TQ30002 | 30 | 150 | 3 (0)| 00:00:01 | | | | S->P | HASH |
|* 30 | TABLE ACCESS FULL | L_ATMS_TEST_TYPE | 30 | 150 | 3 (0)| 00:00:01 | | | | | |
| 31 | NESTED LOOPS | | | | | | | | | | |
| 32 | NESTED LOOPS | | 3 | 210 | 329 (1)| 00:00:04 | | | | | |
| 33 | NESTED LOOPS | | 3 | 195 | 329 (1)| 00:00:04 | | | | | |
|* 34 | HASH JOIN | | 2 | 114 | 325 (1)| 00:00:04 | | | | | |
| 35 | NESTED LOOPS | | | | | | | | | | |
| 36 | NESTED LOOPS | | 6 | 258 | 322 (1)| 00:00:04 | | | | | |
| 37 | PARTITION RANGE SINGLE | | 6 | 126 | 316 (1)| 00:00:04 | 7 | 7 | | | |
|* 38 | TABLE ACCESS FULL | J_OP_TEST_ANML | 6 | 126 | 316 (1)| 00:00:04 | 7 | 7 | | | |
|* 39 | INDEX UNIQUE SCAN | FT_TEST_ID_PK | 1 | | 0 (0)| 00:00:01 | | | | | |
|* 40 | TABLE ACCESS BY GLOBAL INDEX ROWID | B_FP_TEST | 1 | 22 | 1 (0)| 00:00:01 | ROWID | ROWID | | | |
|* 41 | TABLE ACCESS FULL | L_TEST_STATUS | 3 | 42 | 3 (0)| 00:00:01 | | | | | |
|* 42 | TABLE ACCESS BY INDEX ROWID | J_FP_INVESTIGATOR | 1 | 8 | 2 (0)| 00:00:01 | | | | | |
|* 43 | INDEX RANGE SCAN | FI_TEST_ID_PK | 1 | | 1 (0)| 00:00:01 | | | | | |
|* 44 | INDEX UNIQUE SCAN | L_ATMS_TEST_TYPE_PK | 1 | | 0 (0)| 00:00:01 | | | | | |
|* 45 | TABLE ACCESS BY INDEX ROWID | L_ATMS_TEST_TYPE | 1 | 5 | 1 (0)| 00:00:01 | | | | | |
| 46 | PX COORDINATOR | | | | | | | | | | |
| 47 | PX SEND QC (RANDOM) | :TQ20003 | | | | | | | Q2,03 | P->S | QC (RAND) |
| 48 | NESTED LOOPS | | | | | | | | Q2,03 | PCWP | |
| 49 | NESTED LOOPS | | 33 | 2310 | 399 (2)| 00:00:05 | | | Q2,03 | PCWP | |
|* 50 | HASH JOIN | | 33 | 2145 | 397 (2)| 00:00:05 | | | Q2,03 | PCWP | |
| 51 | PX RECEIVE | | 78 | 3978 | 393 (1)| 00:00:05 | | | Q2,03 | PCWP | |
| 52 | PX SEND HASH | :TQ20002 | 78 | 3978 | 393 (1)| 00:00:05 | | | Q2,02 | P->P | HASH |
|* 53 | HASH JOIN | | 78 | 3978 | 393 (1)| 00:00:05 | | | Q2,02 | PCWP | |
| 54 | BUFFER SORT | | | | | | | | Q2,02 | PCWC | |
| 55 | PX RECEIVE | | | | | | | | Q2,02 | PCWP | |
| 56 | PX SEND BROADCAST | :TQ20000 | | | | | | | | S->P | BROADCAST |
| 57 | NESTED LOOPS | | | | | | | | | | |
| 58 | NESTED LOOPS | | 66 | 2838 | 382 (1)| 00:00:05 | | | | | |
| 59 | PARTITION RANGE SINGLE | | 66 | 1386 | 316 (1)| 00:00:04 | 7 | 7 | | | |
|* 60 | TABLE ACCESS FULL | J_OP_TEST_ANML | 66 | 1386 | 316 (1)| 00:00:04 | 7 | 7 | | | |
|* 61 | INDEX UNIQUE SCAN | FT_TEST_ID_PK | 1 | | 0 (0)| 00:00:01 | | | | | |
|* 62 | TABLE ACCESS BY GLOBAL INDEX ROWID | B_FP_TEST | 1 | 22 | 1 (0)| 00:00:01 | ROWID | ROWID | | | |
| 63 | PX BLOCK ITERATOR | | 70382 | 549K| 11 (0)| 00:00:01 | | | Q2,02 | PCWC | |
|* 64 | TABLE ACCESS FULL | J_FP_INVESTIGATOR | 70382 | 549K| 11 (0)| 00:00:01 | | | Q2,02 | PCWP | |
| 65 | BUFFER SORT | | | | | | | | Q2,03 | PCWC | |
| 66 | PX RECEIVE | | 3 | 42 | 3 (0)| 00:00:01 | | | Q2,03 | PCWP | |
| 67 | PX SEND HASH | :TQ20001 | 3 | 42 | 3 (0)| 00:00:01 | | | | S->P | HASH |
|* 68 | TABLE ACCESS FULL | L_TEST_STATUS | 3 | 42 | 3 (0)| 00:00:01 | | | | | |
|* 69 | INDEX UNIQUE SCAN | L_ATMS_TEST_TYPE_PK | 1 | | 0 (0)| 00:00:01 | | | Q2,03 | PCWP | |
|* 70 | TABLE ACCESS BY INDEX ROWID | L_ATMS_TEST_TYPE | 1 | 5 | 1 (0)| 00:00:01 | | | Q2,03 | PCWP | |
| 71 | PX COORDINATOR | | | | | | | | | | |
| 72 | PX SEND QC (RANDOM) | :TQ10003 | | | | | | | Q1,03 | P->S | QC (RAND) |
| 73 | NESTED LOOPS | | | | | | | | Q1,03 | PCWP | |
| 74 | NESTED LOOPS | | 33 | 2310 | 399 (2)| 00:00:05 | | | Q1,03 | PCWP | |
|* 75 | HASH JOIN | | 34 | 2210 | 397 (2)| 00:00:05 | | | Q1,03 | PCWP | |
| 76 | PX RECEIVE | | 78 | 3978 | 393 (1)| 00:00:05 | | | Q1,03 | PCWP | |
| 77 | PX SEND HASH | :TQ10002 | 78 | 3978 | 393 (1)| 00:00:05 | | | Q1,02 | P->P | HASH |
|* 78 | HASH JOIN | | 78 | 3978 | 393 (1)| 00:00:05 | | | Q1,02 | PCWP | |
| 79 | BUFFER SORT | | | | | | | | Q1,02 | PCWC | |
| 80 | PX RECEIVE | | | | | | | | Q1,02 | PCWP | |
| 81 | PX SEND BROADCAST | :TQ10000 | | | | | | | | S->P | BROADCAST |
| 82 | NESTED LOOPS | | | | | | | | | | |
| 83 | NESTED LOOPS | | 66 | 2838 | 382 (1)| 00:00:05 | | | | | |
| 84 | PARTITION RANGE SINGLE | | 66 | 1386 | 316 (1)| 00:00:04 | 7 | 7 | | | |
|* 85 | TABLE ACCESS FULL | J_OP_TEST_ANML | 66 | 1386 | 316 (1)| 00:00:04 | 7 | 7 | | | |
|* 86 | INDEX UNIQUE SCAN | FT_TEST_ID_PK | 1 | | 0 (0)| 00:00:01 | | | | | |
|* 87 | TABLE ACCESS BY GLOBAL INDEX ROWID | B_FP_TEST | 1 | 22 | 1 (0)| 00:00:01 | ROWID | ROWID | | | |
| 88 | PX BLOCK ITERATOR | | 70382 | 549K| 11 (0)| 00:00:01 | | | Q1,02 | PCWC | |
|* 89 | TABLE ACCESS FULL | J_FP_INVESTIGATOR | 70382 | 549K| 11 (0)| 00:00:01 | | | Q1,02 | PCWP | |
| 90 | BUFFER SORT | | | | | | | | Q1,03 | PCWC | |
| 91 | PX RECEIVE | | 3 | 42 | 3 (0)| 00:00:01 | | | Q1,03 | PCWP | |
| 92 | PX SEND HASH | :TQ10001 | 3 | 42 | 3 (0)| 00:00:01 | | | | S->P | HASH |
|* 93 | TABLE ACCESS FULL | L_TEST_STATUS | 3 | 42 | 3 (0)| 00:00:01 | | | | | |
|* 94 | INDEX UNIQUE SCAN | L_ATMS_TEST_TYPE_PK | 1 | | 0 (0)| 00:00:01 | | | Q1,03 | PCWP | |
|* 95 | TABLE ACCESS BY INDEX ROWID | L_ATMS_TEST_TYPE | 1 | 5 | 1 (0)| 00:00:01 | | | Q1,03 | PCWP | |
Predicate Information (identified by operation id):
5 - access("B_FP_TEST"."TEST_TYPE_ID"="L_ATMS_TEST_TYPE"."ATMS_TEST_TYPE_ID")
8 - access("B_FP_TEST"."STATUS_ID"="L_TEST_STATUS"."STATUS_ID")
11 - access("B_FP_TEST"."TEST_ID"="J_FP_INVESTIGATOR"."TEST_ID")
18 - access("J_OP_TEST_ANML"."START_DATE">=TO_DATE(' 2013-10-27 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND "J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-11-05
00:00:00', 'syyyy-mm-dd hh24:mi:ss'))
19 - access("J_OP_TEST_ANML"."TEST_ID"="B_FP_TEST"."TEST_ID")
20 - filter("B_FP_TEST"."DATASOURCE_ID"=9 AND "B_FP_TEST"."IS_DELETED"=0 AND "B_FP_TEST"."TEST_NUM"<>1 AND "B_FP_TEST"."TEST_NUM"<>2 AND
"B_FP_TEST"."TEST_NUM"<>99)
22 - filter("J_FP_INVESTIGATOR"."IS_PI"=1)
26 - filter("L_TEST_STATUS"."STATUS"='Completed' OR "L_TEST_STATUS"."STATUS"='In-Progress' OR "L_TEST_STATUS"."STATUS"='Scheduled')
30 - filter("L_ATMS_TEST_TYPE"."IS_DELETED"=0)
34 - access("B_FP_TEST"."STATUS_ID"="L_TEST_STATUS"."STATUS_ID")
38 - filter("J_OP_TEST_ANML"."END_DATE">=TO_DATE(' 2013-10-27 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND "J_OP_TEST_ANML"."END_DATE"<=TO_DATE(' 2013-11-05
00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND (LNNVL("J_OP_TEST_ANML"."START_DATE">=TO_DATE(' 2013-10-27 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) OR
LNNVL("J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-11-05 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))))
39 - access("J_OP_TEST_ANML"."TEST_ID"="B_FP_TEST"."TEST_ID")
40 - filter("B_FP_TEST"."DATASOURCE_ID"=9 AND "B_FP_TEST"."IS_DELETED"=0 AND "B_FP_TEST"."TEST_NUM"<>1 AND "B_FP_TEST"."TEST_NUM"<>2 AND
"B_FP_TEST"."TEST_NUM"<>99)
41 - filter("L_TEST_STATUS"."STATUS"='Completed' OR "L_TEST_STATUS"."STATUS"='In-Progress' OR "L_TEST_STATUS"."STATUS"='Scheduled')
42 - filter("J_FP_INVESTIGATOR"."IS_PI"=1)
43 - access("B_FP_TEST"."TEST_ID"="J_FP_INVESTIGATOR"."TEST_ID")
44 - access("B_FP_TEST"."TEST_TYPE_ID"="L_ATMS_TEST_TYPE"."ATMS_TEST_TYPE_ID")
45 - filter("L_ATMS_TEST_TYPE"."IS_DELETED"=0)
50 - access("B_FP_TEST"."STATUS_ID"="L_TEST_STATUS"."STATUS_ID")
53 - access("B_FP_TEST"."TEST_ID"="J_FP_INVESTIGATOR"."TEST_ID")
60 - filter("J_OP_TEST_ANML"."END_DATE">=TO_DATE(' 2013-11-04 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND "J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-11-04
00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND (LNNVL("J_OP_TEST_ANML"."END_DATE">=TO_DATE(' 2013-10-27 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) OR
LNNVL("J_OP_TEST_ANML"."END_DATE"<=TO_DATE(' 2013-11-05 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))) AND (LNNVL("J_OP_TEST_ANML"."START_DATE">=TO_DATE(' 2013-10-27
00:00:00', 'syyyy-mm-dd hh24:mi:ss')) OR LNNVL("J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-11-05 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))))
61 - access("J_OP_TEST_ANML"."TEST_ID"="B_FP_TEST"."TEST_ID")
62 - filter("B_FP_TEST"."DATASOURCE_ID"=9 AND "B_FP_TEST"."IS_DELETED"=0 AND "B_FP_TEST"."TEST_NUM"<>1 AND "B_FP_TEST"."TEST_NUM"<>2 AND
"B_FP_TEST"."TEST_NUM"<>99)
64 - filter("J_FP_INVESTIGATOR"."IS_PI"=1)
68 - filter("L_TEST_STATUS"."STATUS"='Completed' OR "L_TEST_STATUS"."STATUS"='In-Progress' OR "L_TEST_STATUS"."STATUS"='Scheduled')
69 - access("B_FP_TEST"."TEST_TYPE_ID"="L_ATMS_TEST_TYPE"."ATMS_TEST_TYPE_ID")
70 - filter("L_ATMS_TEST_TYPE"."IS_DELETED"=0)
75 - access("B_FP_TEST"."STATUS_ID"="L_TEST_STATUS"."STATUS_ID")
78 - access("B_FP_TEST"."TEST_ID"="J_FP_INVESTIGATOR"."TEST_ID")
85 - filter("J_OP_TEST_ANML"."END_DATE">=TO_DATE(' 2013-10-28 00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND "J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-10-28
00:00:00', 'syyyy-mm-dd hh24:mi:ss') AND (LNNVL("J_OP_TEST_ANML"."END_DATE">=TO_DATE(' 2013-11-04 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) OR
LNNVL("J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-11-04 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))) AND (LNNVL("J_OP_TEST_ANML"."END_DATE">=TO_DATE(' 2013-10-27
00:00:00', 'syyyy-mm-dd hh24:mi:ss')) OR LNNVL("J_OP_TEST_ANML"."END_DATE"<=TO_DATE(' 2013-11-05 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))) AND
(LNNVL("J_OP_TEST_ANML"."START_DATE">=TO_DATE(' 2013-10-27 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) OR LNNVL("J_OP_TEST_ANML"."START_DATE"<=TO_DATE(' 2013-11-05
00:00:00', 'syyyy-mm-dd hh24:mi:ss'))))
86 - access("J_OP_TEST_ANML"."TEST_ID"="B_FP_TEST"."TEST_ID")
87 - filter("B_FP_TEST"."DATASOURCE_ID"=9 AND "B_FP_TEST"."IS_DELETED"=0 AND "B_FP_TEST"."TEST_NUM"<>1 AND "B_FP_TEST"."TEST_NUM"<>2 AND
"B_FP_TEST"."TEST_NUM"<>99)
89 - filter("J_FP_INVESTIGATOR"."IS_PI"=1)
93 - filter("L_TEST_STATUS"."STATUS"='Completed' OR "L_TEST_STATUS"."STATUS"='In-Progress' OR "L_TEST_STATUS"."STATUS"='Scheduled')
94 - access("B_FP_TEST"."TEST_TYPE_ID"="L_ATMS_TEST_TYPE"."ATMS_TEST_TYPE_ID")
95 - filter("L_ATMS_TEST_TYPE"."IS_DELETED"=0)Excellent piece of follow-up on my first suggestion.
I nearly made a comment about how the plan doesn't show Bloom filter pruning either - and then I realised why not. The plan you've shown us comes from Explain Plan with literal values present; the trace file shows bind variables with names that are generated when cursor_sharing is set to force or similar - so the run-time plan and the plan from explain plan are almost guaranteed to be different.
Oracle support will need you to supply the plan you get from trying to run the query and then making a call to dbms_xplan.display_cursor() - dbms_xplan in 10g | Oracle Scratchpad If you do this I think you'll find that the pstart/pstop columns contain entries like :BF0000, and you may even find operations link PX JOIN FILTER CREATE / PX JOIN FILTER USE
A couple of generic notes:
if a query does sufficient work to merit parallel execution, then it's usually better to supply the best possible information to the optimizer, which means using literals rather than bind variables - you could try executing the query with the hint /*+ cursor_sharing_exact */ to stop Oracle from turning your literals into binds; it might be the presence of bind variables that's making the optimizer choose a path that has to include bloom filter pruning in your case.
Where you have the to_date() call you've used a four-digit year - which is a very good thing and helps the optimizer - but it's also a good idea to include an explicit format string as well: with a four-digit year this probably won't make any difference, but it avoids any risk of ambiguity for the optimizer.
I made a comment about the P->S stage and bottlenecks - I spent a couple more minutes looking at the plan, and I see the optimizer has used concatentation: in effect it has run three query blocks one after the other and fed the results to the query co-ordinator - in this case the P->S would make no difference to the end-user response time there's always a final P->S to the coordinator, you just happen to have three of them.
Regards
Jonathan Lewis -
ASSERT: Giving up waiting for the tab closing animation to finish (bug 608589)
Stack Trace:
0:([object XULElement],[object XULElement],0)
Happening since I went to the 4.0b9 beta. Thanks for any help in getting rid of it.They're still working on fixing that Bug - https://bugzilla.mozilla.org/show_bug.cgi?id=608589 - a fix for another Bug - https://bugzilla.mozilla.org/show_bug.cgi?id=613888 - landed earlier this week which might have fixed it. Unless you are willing to install a nightly Trunk which has the latest fixes, you'll have to wait for 4.0b10 for the fix.
-
So I have a query that is running with a large number of CXPacket waits. There are no other tasks in the sys.dm_os_waiting_tasks that are blocking this session id with a wait other than CXPacket Wait. This is taking place on a SQL Server 2008
R2 machine. My question is there something else to look at? I've gone ahead and posted the output of the entire sys.dm_os_waiting_tasks. Any thoughts?
waiting_task_address session_id exec_context_id wait_duration_ms wait_type resource_address blocking_task_address blocking_session_id
blocking_exec_context_id resource_description
0x0000000004E88988 NULL NULL 13525 FT_IFTS_SCHEDULER_IDLE_WAIT NULL NULL NULL NULL NULL
0x0000000004E89288 NULL NULL 64128606 DISPATCHER_QUEUE_SEMAPHORE NULL NULL NULL NULL NULL
0x0000000004ED6748 2 0 19502 XE_TIMER_EVENT NULL NULL NULL NULL NULL
0x0000000004450508 3 0 2779501 XE_DISPATCHER_WAIT NULL NULL NULL NULL NULL
0x000000000446A748 4 0 838 LAZYWRITER_SLEEP NULL NULL NULL NULL NULL
0x000000000448E508 5 0 438 REQUEST_FOR_DEADLOCK_SEARCH 0x000000000B9301F8 NULL NULL NULL NULL
0x0000000004E88508 6 0 1304946379 KSOURCE_WAKEUP NULL NULL NULL NULL NULL
0x0000000004484508 7 0 146961 LOGMGR_QUEUE 0x0000000003597248 NULL NULL NULL NULL
0x00000000804942C8 9 0 3366 SQLTRACE_INCREMENTAL_FLUSH_SLEEP NULL NULL NULL NULL NULL
0x000000000448E748 10 0 929 SLEEP_TASK NULL NULL NULL NULL NULL
0x0000000004450988 11 0 26214727 BROKER_EVENTHANDLER NULL NULL NULL NULL NULL
0x0000000004EBC508 12 0 1304959888 ONDEMAND_TASK_QUEUE 0x0000000003575508 NULL NULL NULL NULL
0x0000000004EA2508 13 0 146959 CHECKPOINT_QUEUE 0x0000000003590C70 NULL NULL NULL NULL
0x0000000004EA2748 14 0 1304947282 BROKER_TRANSMITTER NULL NULL NULL NULL NULL
0x0000000004484988 16 0 1304947282 BROKER_TRANSMITTER NULL NULL NULL NULL NULL
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x0000000255EFEBC8 154 19 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x0000000258D26748 154 17 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x0000000258DB0E08 154 18 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x000000025A392748 154 21 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x0000000258DB2E08 154 20 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x000000025C694508 154 23 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x000000025A675708 154 24 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x000000000446AE08 154 0 19974433 CXPACKET 0x0000000804ECC1D0 0x00000001D3F902C8 154 22 exchangeEvent
id=Port80263100 WaitType=e_waitPortOpen nodeId=4
0x0000000004EBCE08 154 1 18269246 CXPACKET 0x000000080C705200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6220e00 WaitType=e_waitPipeGetRow nodeId=33
0x0000000004485288 154 2 18269246 CXPACKET 0x000000080CD4F200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6220f00 WaitType=e_waitPipeGetRow nodeId=33
0x0000000004EA3B88 154 3 18269246 CXPACKET 0x000000080CCDD200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6221000 WaitType=e_waitPipeGetRow nodeId=33
0x0000000004ED7948 154 4 18269246 CXPACKET 0x000000080CC8B200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6220f80 WaitType=e_waitPipeGetRow nodeId=33
0x000000000448F708 154 5 18269242 CXPACKET 0x000000080CD41200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6220e80 WaitType=e_waitPipeGetRow nodeId=33
0x0000000004451B88 154 6 18269245 CXPACKET 0x000000080CE31200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6221080 WaitType=e_waitPipeGetRow nodeId=33
0x0000000004E89048 154 7 18269246 CXPACKET 0x000000080D12B200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6221100 WaitType=e_waitPipeGetRow nodeId=33
0x000000000446ABC8 154 8 18269243 CXPACKET 0x000000080CE7D200 0x000000000448FB88 154 13 exchangeEvent
id=Pipe2f6221200 WaitType=e_waitPipeGetRow nodeId=33
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258D26748 154 17 18270546 CXPACKET 0x000000025C763020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247880 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB0E08 154 18 19974425 CXPACKET 0x00000008064DD020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247900 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000255EFEBC8 154 19 18269474 CXPACKET 0x0000000806355020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247800 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x0000000258DB2E08 154 20 18270502 CXPACKET 0x0000000805CC1020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247a00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322346 CXPACKET 0x0000000806395020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A392748 154 21 18322347 CXPACKET 0x0000000806395020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247980 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x00000001D3F902C8 154 22 18270621 CXPACKET 0x000000025CE67020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247c00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025C694508 154 23 18270541 CXPACKET 0x000000025C75D020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247a80 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x0000000004EBCE08 154 1 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x000000000448F708 154 5 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x0000000004485288 154 2 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x0000000004ED7948 154 4 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x0000000004EA3B88 154 3 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x0000000004451B88 154 6 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x0000000004E89048 154 7 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17
0x000000025A675708 154 24 18269840 CXPACKET 0x000000025C767020 0x000000000446ABC8 154 8 exchangeEvent
id=Pipe9c247b00 WaitType=e_waitPipeGetRow nodeId=17Hello,
First, I would take a look at what your MAXDOP setting is, that's seems a bit high unless you have around 80 processors - stick to multiples of the number of processors in a single numa node and don't go over half of the numa nodes if this is for an OLTP
system. If it's for a DSS or DW system then having a very high maxdop should be fine.
When dealing with CXPACKET the wait means that it's waiting for all of the parallel threads to complete before it can merge the results and move on. If any single thread has to process more than any other (or waits longer for data) the whole process has
to wait. I would investigate to see if there is a large skew in statistics and one thread is processing much more than another. I'd also try creating an extended events session to grab all of the waitinfo for that session.
Sean Gallardy | Blog |
Twitter -
Update query is waiting for async descriptor resize
Hi All,
One of the update query which was completing in 1-2 mins. Suddenly today it started taking more than 3-4 hours and still it is running.
Below is the query, I can see the explain plain. I can see the query is waiting for async descriptor resize wait event
UPDATE AP_INVOICE_DISTRIBUTIONS SET POSTED_FLAG = 'N' WHERE POST
ED_FLAG = 'S' AND (ACCOUNTING_DATE >= :B2 OR :B2 IS NULL) AND (A
CCOUNTING_DATE <= :B1 OR :B1 IS NULL)
when i checked the P1text, P2text columns of v$session, it is showing outstanding #aio,current ai0 limit respectively.
Explan plan
CODEPLAN_TABLE_OUTPUT
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | UPDATE STATEMENT | | | | 250 (100)| |
| 1 | UPDATE | AP_INVOICE_DISTRIBUTIONS_ALL | | | | |
| 2 | NESTED LOOPS | | | | | |
| 3 | NESTED LOOPS | | 39 | 12480 | 250 (0)| 05:14:02 |
|* 4 | TABLE ACCESS BY INDEX ROWID| AP_ACCOUNTING_EVENTS_ALL | 39 | 624 | 145 (0)| 03:02:09 |
|* 5 | INDEX RANGE SCAN | AP_ACCOUNTING_EVENTS_N2 | 3954 | | 14 (0)| 00:17:36 |
|* 6 | INDEX RANGE SCAN | AP_INVOICE_DISTRIBUTIONS_N18 | 4 | | 2 (0)| 00:02:31 |
PLAN_TABLE_OUTPUT
|* 7 | TABLE ACCESS BY INDEX ROWID | AP_INVOICE_DISTRIBUTIONS_ALL | 1 | 304 | 4 (0)| 00:05:02 |
CODE
Please help me on this.
Env Details --
DB version -- 11.2.0.1
OS - IBM AIX.
Thanks in advance...This could be this bug
Bug 9829397 - Excessive CPU and many "asynch descriptor resize" waits for SQL using Async IO (Doc ID 9829397.8) -
Significant time waiting for User I/O on the hot object
How to correct this warnings shone in enterprise manager's top most poor sql's in performance analysis ;
The SQL statement with SQL_ID "dnpdchg674nrr" spent significant time waiting for User I/O on the hot object.
Texto SQLSELECT COUNT(*) AS QTDCTA FROM CONTAS WHERE SITUACAOCT = 0 AND TIPOCT = 0 AND MA...
Fowards Thanks
Marcos Ortega
BrasilThanks, for so fast answers;
Just one doubt; Significant user I/O; I thought to be related to many rows beeing request, or some like that;
here is the plan ( contas is a huge table , more than 40 millions rows )
SELECT COUNT(*) AS QTDCTA
FROM CONTAS
WHERE SITUACAOCT = 0 AND TIPOCT = 0 AND MATRICULA = :pMATRICULA
SELECT STATEMENT, GOAL = ALL_ROWS 5 1 26
SORT AGGREGATE 1 26 AGGREGATE
TABLE ACCESS BY INDEX ROWID EOS CONTAS 5 1 26 BY INDEX ROWID
INDEX RANGE SCAN EOS I_LOCALIZ 2 4 3 RANGE SCAN -
Cannot get a connection, pool error Timeout waiting for idle object
my connection pool setting is
maxActive="3" minIdle="2" maxWait="10000" removeAbandoed="true" logAbandoned="true" removeAbandonedTimeout="30" autoreconnection="true"
we have 7 people hitting the group of search functions ,
about 3 minutes I get
I got error like
org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot get a connection, pool error Timeout waiting for idle object at org.apache.tomcat.dbcp.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:104) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880) at Deferment.showResult.checStudent(showResult.java:135) at Deferment.showResult.doPost(showResult.java:99) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:402) at org.apache.catalina.servlets.InvokerServlet.doPost(InvokerServlet.java:170) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
I just wonder
1) Cannot get a connection, pool error Timeout waiting for idle object-> cause by connection pool leaking or other problem.
2) Setting the maxactive to -1 ( suggestion from Google) , if I set my connection to ulimit , waht should I put on minIdle="2"
3) How can I test my connection pool have problem or not ? is
SHOW PROCESSLIST; tolding me someinformation? I use Mysql
Thank you!I try something like ps2 = conn.prepareStatement(target);
ps2.setString(1, UNumber); // set input parameter
rs = ps2.executeQuery();
sendMail = 0;//how many rows we can find.
while (rs.next()) {
sendMail++;
ps2.close();
rs.close();
conn.close();
if ((count1 == 0) || (count2 == 0)) {
conn.rollback();
} else {
conn.commit();
conn.setAutoCommit(true);
ps.close();
calstat2.close();
conn.close();
calstat = (CallableStatement) conn.prepareCall("{call findStudent}");
calstat.executeQuery();
calstat.close();
conn.close();is that enought? what else I should do to make sure I did close all the connection, after I use it ?
thank you -
error msg: ASSERT: Giving up waiting for the tab closing animation to finish (bug 608589)
Stack Trace:
0:([object XULElement],[object XULElement],0)A work around is goto about:config
toggle the following line so that it is set to false.
browser.tabs.animate -
How do i query the module object for the interface of the module-specific interface I require
Hi there.
Currently using LabVIEW 2012/TestStand 2012.
I am attempting to edit the LabVIEW Text Sequence Translator, and in the CreateStep.vi I am trying to create a step that is of type WIS_Sequence_Call (a custom version of NI_Types.ini-->SequenceCall).
I need to set the file pathname, sequence name and parameter values in the step. I believe I need to get access to the SequenceCallModule class to do this.
This help file SequenceCallModule states in the description: "To access the properties and methods of a specific module class, query the Module object for the interface of the module-specific interface you want to acquire.".
What exactly is meant by "query" here? It looks like "Specify" might be what I am after, but I want this done programmatically, ie no dialog boxes.
See my snippet below.
Thanks.Thanks for the reply Charles.
I have been using the 2012 version of the poster.
I can get access to the Module class from the Step Class as shown in the snippet above, but I can't see how to get to SequenceCallModule? The "To more specific class" VI doesn't seem to work for TS refs. Is there no way to derive the SequenceCallModule from this?
Also I can use the TSAdp.SequenceCallModule reference, but I need to link this to the relevant step that I've just created. Can NI please provide me with a link to any examples on this?
Thanks -
How do i query the module object for the interface of the module-specific interface I require
Hi there.
Currently using LabVIEW 2012/TestStand 2012.
I am attempting to edit the LabVIEW Text Sequence Translator, and in the CreateStep.vi I am trying to create a step that is of type WIS_Sequence_Call (a custom version of NI_Types.ini-->SequenceCall).
I need to set the file pathname, sequence name and parameter values in the step. I believe I need to get access to the SequenceCallModule class to do this.
This help file SequenceCallModule states in the description: "To access the properties and methods of a specific module class, query the Module object for the interface of the module-specific interface you want to acquire.".
What exactly is meant by "query" here? It looks like "Specify" might be what I am after, but I want this done programmatically, ie no dialog boxes.
See my snippet below.
Thanks.
Christopher Farmer
Certified LabVIEW Architect
Certified TestStand Developer
http://wiredinsoftware.com.au
Solved!
Go to Solution.Thanks for the reply Charles.
I have been using the 2012 version of the poster.
I can get access to the Module class from the Step Class as shown in the snippet above, but I can't see how to get to SequenceCallModule? The "To more specific class" VI doesn't seem to work for TS refs. Is there no way to derive the SequenceCallModule from this?
Also I can use the TSAdp.SequenceCallModule reference, but I need to link this to the relevant step that I've just created. Can NI please provide me with a link to any examples on this?
Thanks
Christopher Farmer
Certified LabVIEW Architect
Certified TestStand Developer
http://wiredinsoftware.com.au -
Query on Using fork with wait for event
Hi All,
I have a scenario in which a fork has two branches and one branch has the multiple steps along the line and also calls a subworkflow in one of the steps.
The second branch has a single wait for event to complete the workflow in case of a cancel event.
My understanding is that when the branch one executes and is on a single step decision or have gone inside a subworkflow and wating for user decision on the workitem created
Whenever the wait event is triggered on the main workflow the second branch gets executed completing the workflow and all the branch one steps and the subworkflow gets logically deleted removing all the workitem from the inbox.
Do I have to do any specific process control in main workflow to make sure that the subworkflow is deleted .
Please clarify on this.
Thanks,
Charan.It should be taken care by itself. No additional steps required.
Regards, IA -
Query with links to 'services for object'
Hi everybody
I need your help
We have pictures (jpg, pdf, tif) linked to materials in material master (in transaction mm02 services for object). Sometthing like this - but form materials:
http://www.le.ac.uk/mis/docs/sapdocs/ug/UG5-1%20Services.doc
We would like to create the "stock report" with links to these attachments. Can anyone tell me if it is possible to create these links in the report?
I would like the report to look something like this:
material_number1; stock1; link_to_picture_on_material_number1
material_number2; stock2; link_to_picture_on_material_number2
the user should be able to open the attached picture (if it exists) by clicking the link at each material number (even better if the pictures were already displayed in the report)
Thank you very much in advance
BR,
JanaThere are a number of classes with methods for accessing objects saved using services for object - look for classes starting CL_GOS*
Help for GOS is available at
<a href="http://help.sap.com/saphelp_nw04/helpdata/en/f5/e16f3a53dee246e10000000a11402f/frameset.htm">Generic Object Services (BC-SRV-GBT)</a>
In your report you could link to the relevant code to display the image based on an event like at line selection / at user command or using hotspots or similar in an ALV based report
Andrew -
How to make my object to wait for server response
Hi ,
I need some one suggestions on thread concepts.
First Let me know my scenario is fit for thread concept.
is it possible then how I can reach to solution.
I have scenario like
I send a request to server and server is taking some time to process the request.
if I am calling the method on server it showing no results bez i know server takes some time.
for that my calling method has to be wait for some time.
Thanks
Babu HHi ,
Let me give more information about that between my java class and server
i have the bridge library which is also written in other than java.
for that i used the njawin tool make as java wrapper class and accessing the java wrapper class(Bridge Server).
the java wrapper class has post_request and poll_response methods so that why i 'm using only these methods in my java class to access the server.
exactly I don't which technology is resided in Brdige server and actual Server bez that has been developed some one.
poll_respnse means server has posted the response to client.
Thanks
Babu H -
Wait for MTTR advisory state object
Hello I am running a snapshot in 10g and the MMon slave process is waiting for the MTTR advisory for over 2hrs now. Does anyone know what the issue is?
If one takes the time to read the OP's question, you can see that he states the version: 10.1. Anyway, one can infer that the question is about 10g, since enq: WF - contention is a new 10g wait event.
But I'm curious about this event too. None of my Milsap or Lewis books mentions it, and neither does the excellent Shee/Deshpande/Gopalakrishnan. The event does not merit a mention on Metalink, nor can you find it in the 10g or 11g online docs.
According to the naming convention of other enqueue wait events, WF would be the type of lock that is being waited on. But I have never heard of a WF lock. What could it mean?
All I can find out about this event is that it has one parameter, name|mode.
I am seeing it in the context of running a SQL Tuning Set cursor cache capture operation. A quick cruise through DBA_HIST_SYSTEM_EVENT tells me that this event has (almost) never arisen before on my system.
This is my first experience with STS, which is why I'm curious about new things that come my way. Is this event causing a problem? I'm not sure. It has only been experiencing about 8 seconds of wait per 10 minute snapshot since I started running my STS capture. Nobody is complaining, yet. But as they say, Knowledge is power.
So does anyone have insight into this mysterious wait event?
Thanks.
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