Single-Task Message Wait Event
Discovered while researching some performance issues....
A statspack report on the metadata repository is showing a lot of single-task message waits.
Is this normal? What is the source of these waits?
Per Oracle 8i documentation... "Oracle is diminishing the support of single-task mode."
Why is this showing up in a 9.2.0.8 database???
Any insights welcome...
Thanks,
Henry
Edited by: OracleDBAinPA on Dec 8, 2009 6:56 AM
As you can see, no one replied to the message...
But, our performance issue was due to a memory leak in the listener (documented bug in 9.2.0.8).
Restarting the listener, also reduced the wait...
Similar Messages
-
About single-task message wait event
Hello
I have several active users, some of them from 2 an 3 days ago with single-task message wait event and their last_call was many time ago. One of users, blocked to other users just a little while ago and Concurrency grow up to 20 % and was on increase. i had to kill this user and all were well, concurrency dessapeared.
How could I avoid this behavior??
How could I kill these type of user by automatic way??
ThanksHi,
according to me active user is different
according to me active user is session or oracle process is doing something else like dml or ddl execution or select stmt else session is idel.
trace the session what is doing? is may be problem with dead connection
use oradebug and set the 10046 at level 12 and format it with tkprof utility.
paste it thread
Kind Regards,
Rakesh jayappa -
Single-task message wating for 30 seconds
Hi guys,
I encountered some production issues: in some moments some random sql are taking a lot of time to excute.
I enabled the sql_trace on the system and managed to catch an sql that raises issues. this is the trace parsed with tk prof:
SELECT NVL(RUNNING_TOTALS_AMOUNT, 0)
FROM
ACT_TOTALS_TO_DATE WHERE ACCOUNT_NO = :B1
call count cpu elapsed disk query current rows
Parse 1 0.00 29.35 0 0 1 0
Execute 2 0.00 0.00 0 0 1 0
Fetch 2 0.00 0.00 0 4 0 0
total 5 0.00 29.35 0 4 2 0
Misses in library cache during parse: 0
Optimizer mode: RULE
Parsing user id: 158 (recursive depth: 2)
Rows Row Source Operation
0 SORT GROUP BY (cr=4 pr=0 pw=0 time=62 us)
0 MERGE JOIN OUTER (cr=4 pr=0 pw=0 time=38 us)
0 TABLE ACCESS BY INDEX ROWID ACT_TOTALS_TO_DATE_MRC (cr=4 pr=0 pw=0 time=33 us)
0 INDEX UNIQUE SCAN IDX_ATTDM_ACC_NO (cr=4 pr=0 pw=0 time=29 us)(object id 233866)
0 REMOTE ACT_TOTALS_TO_DATE_CALLS (cr=0 pr=0 pw=0 time=0 us)
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
single-task message 1 29.34 29.34
SQL*Net message to dblink 9 0.00 0.00
SQL*Net message from dblink 9 0.00 0.00
********************************************************************************usually this SQLs executes very good. the execution plan is what I expect. if I execute it on that machine it works fine.
this SQL is executed by a pl/sql procedure. it ussualy works fine, but at that moment the entire procedure took around 30 seconds.
ACT_TOTALS_TO_DATE is a view that uses table from another instance. the view uses db links.
this problem appears on random SQLs and the parse time is huge.
can you please tell me what is this wait?:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
single-task message 1 29.34 29.34this is the wait line from raw trace file:
WAIT #18: nam='single-task message' ela= 29347212 p1=0 p2=0 p3=0 obj#=-1 tim=1272918022974421
I can admit that our code is not well build and it is not using BIND very good. I encountered a lot of hard parses and with this I have latches on shared pool.
but can this explain this behavior?
Thanks for your time.
Edited by: alinux on Apr 22, 2011 6:03 PMGuys,
how can a SQL wait 30 seconds in PARSE phase of its execution for:
'single-task message' wait?
or
In my trace file I have other SQL that have long parsing time but no wait related to these:
SELECT y, aG,b
FROM
xxx WHERE CONTRACT_ID = :B1
call count cpu elapsed disk query current rows
Parse 1 5.14 5.02 0 0 0 0
Execute 2 1.41 1.37 0 0 0 0
Fetch 2 0.00 0.00 0 6 0 2
total 5 6.55 6.40 0 6 0 2
Misses in library cache during parse: 0
Optimizer mode: RULE
Parsing user id: 158 (recursive depth: 2)
Rows Row Source Operation
2 TABLE ACCESS BY INDEX ROWID xxx (cr=6 pr=0 pw=0 time=109 us)
2 INDEX UNIQUE SCAN yyy (cr=4 pr=0 pw=0 time=63 us)(object id 234057)
********************************************************************************Thanks a lot
Edited by: alinux on Apr 29, 2011 5:51 PM -
When there is archiving done to the recovery area, there is "rdbms ipc message" wait event spike.
What to conclude from it?
Wait Class Wait Event P1 Text P1 P2 Text P2 P3 Text P3 Wait Time (ms)
System I/O log file parallel write files 2 blocks 4096 requests 2 10
Idle rdbms ipc message timeout 150 0 0 90
System I/O log file parallel write files 2 blocks 4096 requests 2 10
Idle rdbms ipc message timeout 161 0 0 100
System I/O log file parallel write files 2 blocks 4096 requests 2 10
Idle rdbms ipc message timeout 181 0 0 190
System I/O log file parallel write files 2 blocks 4096 requests 4 10
Idle rdbms ipc message timeout 191 0 0 90
System I/O log file parallel write files 2 blocks 4096 requests 2 10
Idle rdbms ipc message timeout 201 0 0 90
ThanksYou can use the following details
Wait Class Wait Event P1 Text P1 P2 Wait Time(ms)
System I/O log file parallel write files 2 4096 10
Idle rdbms ipc message timeout 150 0 90
System I/O log file parallel write files 2 4096 10
Idle rdbms ipc message timeout 161 0 100
System I/O log file parallel write files 2 4096 10
Idle rdbms ipc message timeout 181 0 190
System I/O log file parallel write files 2 4096 10
Idle rdbms ipc message timeout 191 0 90
System I/O log file parallel write files 2 4096 10
Idle rdbms ipc message timeout 201 0 90 -
What is "reliable message" wait event in 10g??
Hi, all.
The database is 2 node RAC 10.2.0.2.0 on 32-bit windows 2003 EE SP1.
From time to time, I see "reliable message" wait event on the
"Top 5 Timed Events" section from AWR report.
The wait class is "Other".
There seems to be no manuals and html links explaining "reliable message"
wait event.
Thanks and Regards.
Message was edited by:
user507290
Message was edited by:
user507290Metalink Doc 461052.1 is a fairly lightweight walk-through of a system resource profiling tool called LTOM, the "Lite Onboard Monitor". It has an appendix in which it simply points out "The following events were considered idle and ignored... reliable message..."
It also says that if you want to include something for wait analysis, just take it out of the list of idle and ignored events... so it's not exactly saying that the thing is an idle event, just that it was treated as such for the purposes of writing that document but that you might think differently.
On the other hand, this page:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/waitevents003.htm
...is 10g Release 2's description of "wait events of greatest interest"... and "reliable message" isn't on it! From which one concludes, I suppose, that it isn't of great interest! -
What is "reliable message" wait event?
Hi, all.
What is "reliable message" wait event?
The wait class is "Other", not "Idle".
From time to time, I can see "reliable message" wait event
in the Top 5 Timed Events section from AWR reports.
In addition, what is "CPU time" in the Top 5 Timed Events section?
Thanks and Regards.
Message was edited by:
user507290Dear Yas.
Thanks for your reply.
The database is 2 node RAC database (10.2.0.2.0) on 32 bit windows 2003 EE SP1.
Does "AQ" mean Streams AQ???
Can I disable Streams AQ facility??
Thanks and Regards.
Message was edited by:
user507290
Message was edited by:
user507290 -
My wait events - can anyone see a problem?
hi,
this is what i have, can anyone see a problem?
thanks
EVENT TOTAL_WAITS PCT_WAITS TIME_WAIT_SEC PCT_TIME_WAITED TOTAL_TIMEOUTS PCT_TIMEOUTS AVERAGE_WAIT_SEC
Streams AQ: qmn slave idle wait 148147 .3 4051461.88 38.04 3478 .07 27.35
Streams AQ: qmn coordinator idle wa 291006 .59 3962890.53 37.21 148370 3.13 13.62
it
Streams AQ: waiting for time manage 948 0 2021434.2 18.98 948 .02 2132.31
ment or cleanup tasks
control file parallel write 1292057 2.64 266839.64 2.51 0 0 .21
log file parallel write 28433394 58.02 134658.55 1.26 0 0 0
db file sequential read 8307195 16.95 69830.07 .66 0 0 .01
free buffer waits 3117839 6.36 43374.04 .41 3106093 65.55 .01
log buffer space 55520 .11 20810.2 .2 20235 .43 .37
db file scattered read 583604 1.19 18169.58 .17 0 0 .03
write complete waits 17946 .04 17536.66 .16 17941 .38 .98
log file sync 282268 .58 10005.35 .09 9369 .2 .04
enq: RO - fast object reuse 26602 .05 6623.44 .06 2171 .05 .25
enq: CF - contention 1839 0 5178.14 .05 1723 .04 2.82
Streams AQ: qmn coordinator waiting 999 0 4311.01 .04 883 .02 4.32
for slave to start
buffer busy waits 32464 .07 3898.51 .04 3950 .08 .12
control file sequential read 2199199 4.49 3558.34 .03 0 0 0
SGA: MMAN sleep for component shrin 234330 .48 2523.65 .02 234216 4.94 .01
k
buffer exterminate 1583 0 1539.72 .01 1573 .03 .97
library cache pin 317 0 927.71 .01 316 .01 2.93
enq: CI - contention 1829 0 570.84 .01 159 0 .31
log file switch completion 1658 0 517.18 0 425 .01 .31
enq: TX - row lock contention 257 0 438.8 0 149 0 1.71
read by other session 27269 .06 355.17 0 52 0 .01
os thread startup 3869 .01 338.67 0 98 0 .09
latch: shared pool 760 0 285.87 0 0 0 .38
latch: row cache objects 664 0 250 0 0 0 .38
Data file init write 16324 .03 231.59 0 0 0 .01
reliable message 19189 .04 218.16 0 170 0 .01
latch: library cache 483 0 172.51 0 0 0 .36
SQL*Net message from dblink 1143086 2.33 128.69 0 0 0 0
latch free 6091 .01 121.1 0 0 0 .02
library cache load lock 90 0 89.48 0 18 0 .99
log file single write 1894 0 69.76 0 0 0 .04
cursor: pin S wait on X 5183 .01 55.87 0 5165 .11 .01
local write wait 6732 .01 42.58 0 2 0 .01
log file switch (checkpoint incompl 95 0 42.11 0 30 0 .44
ete)
row cache lock 119 0 30.96 0 10 0 .26
SQL*Net more data from dblink 17198 .04 25.92 0 0 0 0
log file switch (private strand flu 69 0 17.54 0 5 0 .25
sh incomplete)
enq: HW - contention 180 0 16.53 0 5 0 .09
enq: PR - contention 9 0 14.5 0 2 0 1.61
enq: JS - queue lock 51 0 12.36 0 0 0 .24
SQL*Net more data to client 48311 .1 11.66 0 0 0 0
enq: TM - contention 12 0 10.66 0 3 0 .89
class slave wait 3128 .01 7.03 0 1 0 0
JS coord start wait 68 0 6.42 0 68 0 .09
direct path write 92712 .19 6.06 0 0 0 0
control file heartbeat 1 0 3.91 0 1 0 3.91
PX Deq: Par Recov Execute 100 0 3.8 0 0 0 .04
log file sequential read 1900 0 2.88 0 0 0 0
single-task message 50 0 2.61 0 0 0 .05
enq: TX - contention 11 0 2.38 0 0 0 .22
undo segment extension 1181001 2.41 1.95 0 1180981 24.92 0
db file single write 165 0 1.3 0 0 0 .01
enq: TX - index contention 97 0 1.27 0 0 0 .01
LGWR wait for redo copy 20840 .04 .66 0 0 0 0
JS kgl get object wait 8 0 .63 0 8 0 .08
SQL*Net message to dblink 1143086 2.33 .55 0 0 0 0
kksfbc child completion 14 0 .55 0 11 0 .04
direct path read temp 217237 .44 .41 0 0 0 0
latch: cache buffers chains 2138 0 .37 0 0 0 0
latch: messages 1245 0 .27 0 0 0 0
latch: redo writing 786 0 .15 0 0 0 0
PX Deq: Par Recov Reply 65 0 .09 0 0 0 0
latch: checkpoint queue latch 171 0 .09 0 0 0 0
latch: redo allocation 1029 0 .08 0 0 0 0
latch: cache buffers lru chain 268 0 .07 0 0 0 0
SGA: allocation forcing component g 5 0 .05 0 2 0 .01
rowth
db file parallel read 83 0 .04 0 0 0 0
latch: In memory undo latch 558 0 .04 0 0 0 0
latch: object queue header operatio 338 0 .04 0 0 0 0
n
direct path read 5042 .01 .03 0 0 0 0
PX Deque wait 7 0 .02 0 0 0 0
direct path write temp 4691 .01 .02 0 0 0 0
enq: SQ - contention 1 0 .02 0 0 0 .02
latch: session allocation 190 0 .02 0 0 0 0
PX Deq: Join ACK 15 0 .01 0 0 0 0
cursor: pin S 894 0 .01 0 0 0 0
enq: TX - allocate ITL entry 37 0 .01 0 0 0 0
kkdlgon 15 0 .01 0 0 0 0
latch: enqueue hash chains 37 0 .01 0 0 0 0
library cache lock 1 0 .01 0 0 0 .01
Log archive I/O 1 0 0 0 0 0 0
PX Deq: Par Recov Change Vector 2 0 0 0 0 0 0
PX Deq: Signal ACK 3 0 0 0 0 0 0
PX Deq: Test for msg 1 0 0 0 0 0 0
PX qref latch 1 0 0 0 1 0 0
SQL*Net break/reset to dblink 5 0 0 0 0 0 0
SQL*Net more data to dblink 1 0 0 0 0 0 0
buffer deadlock 27 0 0 0 27 0 0
checkpoint completed 4 0 0 0 0 0 0
cursor: mutex S 3 0 0 0 0 0 0
cursor: mutex X 1 0 0 0 0 0 0
enq: JS - q mem clnup lck 1 0 0 0 0 0 0
enq: PS - contention 2 0 0 0 0 0 0
enq: US - contention 1 0 0 0 0 0 0
instance state change 2 0 0 0 0 0 0
latch: library cache lock 4 0 0 0 0 0 0
latch: library cache pin 1 0 0 0 0 0 0
latch: object queue header heap 8 0 0 0 0 0 0
latch: undo global data 3 0 0 0 0 0 0
recovery read 39 0 0 0 0 0 0Hi,
If its for a week than I won't bother. Probably you should try to get teh same report for these wait events in a much smaller period , like 20-30minutes of time period when your db is fully operational. If still at that time the wait events,these or any other, shoot up to high wait times, things can be investigated more deeply.
HTH
Aman.... -
Waiting event when execute my jdbc queries
I write a simple multithread jdbc programme to connect to oracle, execute 10 time "select * from mytable" , when I start 2 threads, the time each thread use to complete queries is 9 second. when i start 3 threads, it become extremly slow.
I notice there are serveral waiting event: resmgr:waiting in end wait, resmgr:waiting in actses run, and single-task message , they are waiting for as long as 4 seconds. they after my programm finished,
could anyone tell me what are these event? do they affect the performance of my oracle?I write a simple multithread jdbc programme to connect to oracle, execute 10 time "select * from mytable" , when I start 2 threads, the time each thread use to complete queries is 9 second. when i start 3 threads, it become extremly slow.
I notice there are serveral waiting event: resmgr:waiting in end wait, resmgr:waiting in actses run, and single-task message , they are waiting for as long as 4 seconds. they after my programm finished,
could anyone tell me what are these event? do they affect the performance of my oracle? These wait events are associated with the Resource Manager which handles the Consumer Groups. Try changing your consumer group are shutting the Resource Manager off with
alter system set resource_manager_plan='';
then test your queries again. -
Question on Message Throw Event or Send Task
Team,
I saw a new BPM forum on our HPS Dev Site, I posted this question there so that we can discuss /answer/solve issues there.
I am currently facing some issues in using Message throw event or Send task in my prototype model i am working on.
References i used :
Modeling and Implementation Guide for Oracle Business Section 19
Platform:
Orable BPM 11g/jdeveloper
What i am trying to do here is i am trying to communicate with other BPMN processes. I saw from our Model guide we can either use Message Throw event or send and receive tasks to achieve this. But i see Message throw event can be used to invoke a synchronous or asynchronous BPMN process only through and interface like webservices. In my case , i want to just to start another task flow from another process. Can we use this without using webservices When i try to use Send Task to invoke another process i am not able to see the process name listed when i selected the properties , implementation tab.
It would be great if anyone has any idea of ow to call or start another process from some other process.
Thanks
Sarath Suryayour SSIS package will have following flow
1. Create a Execute SQL Task which will have the below query
SELECT EmailAddress
FROM Table2 t
WHERE EXISTS (
SELECT 1
FROM table1
WHERE ID = t.ID
AND (TotalCount < Min
OR TotalCount > Max)
Use Resultset option as Full resultset and map the resultset EmailAddress to a object variable (@[User::EmailAddressList]) created in SSIS
2. Use a ForEach Loop with ADO enumerator which points to above variable
Inside a loop add a variable [@User::EMailAddress]) to get iterated values
3. Add a Sent Mail task inside loop and set an expression for ToLine property to point to the variable [@User::EMailAddress] so that it sents email to email address specified.
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs -
"lms flush message acks" wait event
Dear All,
We are load testing our application in 10.2.0.1 database with 2 node RAC, in the AWR report top 5 wait event, we are getting "lms flush message acks" 90%.
I did search in google and metalink, but i could not able to find any related notes.
Please help..
Thanks,
Anand.[email protected] wrote:
We are load testing our application in 10.2.0.1 database with 2 node RAC, in the AWR report top 5 wait event, we are getting "lms flush message acks" 90%.
Something is waiting for the "other" node to acknowledge a "flush" message - so you need to look at the other node to see if you can see anything that might cause the flush message to see a slow response.
Of course, there may be congestion on the interconnect - but then various other RAC communications would also be slow - so it's more likely that the "flushing" is slow.
Reasons for flushing - we are telling the other node to clear part of its buffer cache, this might be related to frequent truncate commands (as the top of a shortlist). If you truncate an object, any dirty blocks for that object have to be written to disc, and any clean blocks have to be flushed from the cache; in a RAC environment the other nodes have to be told to do the same and your session has to wait for them to complete the write and flush.
In your case, you might check the code for frequency truncates - and check to see if you can see evidence for frequent slow write from dbwr (and also from lgwr) on the remote node.
Since you're running an early version of 10.2, I think problems of this type can even be related to truncates on global temporary tables due to some bugs that weren't fixed until 10.2.0.3. (And I think there were some problems with dynamic remastering in that version too, which caused similar flushing issues).
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
To post code, statspack/AWR report, execution plans or trace files, start and end the section with the tag {noformat}{noformat} (lowercase, curly brackets, no spaces) so that the text appears in fixed format.
"Science is more than a body of knowledge; it is a way of thinking"
Carl Sagan -
Hi: I'm analyzing this STATSPACK report: it is "volume test" on our UAT server, so most input is from 'bind variables'. Our shared pool is well utilized in oracle. Oracle redo logs is not appropriately configured on this server, as in 'Top 5 wait events' there are 2 for redos.
I need to know what else information can be dig-out from 'foreground wait events' & 'background wait events', and what can assist us to better understanding, in combination of 'Top 5 wait event's, that how the server/test went? it could be overwelming No. of wait events, so appreciate any helpful diagnostic or analysis. Database is oracle 11.2.0.4 upgraded from 11.2.0.3, on IBM AIX power system 64bit, level 6.x
STATSPACK report for
Database DB Id Instance Inst Num Startup Time Release RAC
~~~~~~~~ ----------- ------------ -------- --------------- ----------- ---
700000XXX XXX 1 22-Apr-15 12:12 11.2.0.4.0 NO
Host Name Platform CPUs Cores Sockets Memory (G)
~~~~ ---------------- ---------------------- ----- ----- ------- ------------
dXXXX_XXX AIX-Based Systems (64- 2 1 0 16.0
Snapshot Snap Id Snap Time Sessions Curs/Sess Comment
~~~~~~~~ ---------- ------------------ -------- --------- ------------------
Begin Snap: 5635 22-Apr-15 13:00:02 114 4.6
End Snap: 5636 22-Apr-15 14:00:01 128 8.8
Elapsed: 59.98 (mins) Av Act Sess: 0.6
DB time: 35.98 (mins) DB CPU: 19.43 (mins)
Cache Sizes Begin End
~~~~~~~~~~~ ---------- ----------
Buffer Cache: 2,064M Std Block Size: 8K
Shared Pool: 3,072M Log Buffer: 13,632K
Load Profile Per Second Per Transaction Per Exec Per Call
~~~~~~~~~~~~ ------------------ ----------------- ----------- -----------
DB time(s): 0.6 0.0 0.00 0.00
DB CPU(s): 0.3 0.0 0.00 0.00
Redo size: 458,720.6 8,755.7
Logical reads: 12,874.2 245.7
Block changes: 1,356.4 25.9
Physical reads: 6.6 0.1
Physical writes: 61.8 1.2
User calls: 2,033.7 38.8
Parses: 286.5 5.5
Hard parses: 0.5 0.0
W/A MB processed: 1.7 0.0
Logons: 1.2 0.0
Executes: 801.1 15.3
Rollbacks: 6.1 0.1
Transactions: 52.4
Instance Efficiency Indicators
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 100.00 Redo NoWait %: 100.00
Buffer Hit %: 99.98 Optimal W/A Exec %: 100.00
Library Hit %: 99.77 Soft Parse %: 99.82
Execute to Parse %: 64.24 Latch Hit %: 99.98
Parse CPU to Parse Elapsd %: 53.15 % Non-Parse CPU: 98.03
Shared Pool Statistics Begin End
Memory Usage %: 10.50 12.79
% SQL with executions>1: 69.98 78.37
% Memory for SQL w/exec>1: 70.22 81.96
Top 5 Timed Events Avg %Total
~~~~~~~~~~~~~~~~~~ wait Call
Event Waits Time (s) (ms) Time
CPU time 847 50.2
enq: TX - row lock contention 4,480 434 97 25.8
log file sync 284,169 185 1 11.0
log file parallel write 299,537 164 1 9.7
log file sequential read 698 16 24 1.0
Host CPU (CPUs: 2 Cores: 1 Sockets: 0)
~~~~~~~~ Load Average
Begin End User System Idle WIO WCPU
1.16 1.84 19.28 14.51 66.21 1.20 82.01
Instance CPU
~~~~~~~~~~~~ % Time (seconds)
Host: Total time (s): 7,193.8
Host: Busy CPU time (s): 2,430.7
% of time Host is Busy: 33.8
Instance: Total CPU time (s): 1,203.1
% of Busy CPU used for Instance: 49.5
Instance: Total Database time (s): 2,426.4
%DB time waiting for CPU (Resource Mgr): 0.0
Memory Statistics Begin End
~~~~~~~~~~~~~~~~~ ------------ ------------
Host Mem (MB): 16,384.0 16,384.0
SGA use (MB): 7,136.0 7,136.0
PGA use (MB): 282.5 361.4
% Host Mem used for SGA+PGA: 45.3 45.8
Foreground Wait Events DB/Inst: XXXXXs Snaps: 5635-5636
-> Only events with Total Wait Time (s) >= .001 are shown
-> ordered by Total Wait Time desc, Waits desc (idle events last)
Avg %Total
%Tim Total Wait wait Waits Call
Event Waits out Time (s) (ms) /txn Time
enq: TX - row lock contentio 4,480 0 434 97 0.0 25.8
log file sync 284,167 0 185 1 1.5 11.0
Disk file operations I/O 8,741 0 4 0 0.0 .2
direct path write 13,247 0 3 0 0.1 .2
db file sequential read 6,058 0 1 0 0.0 .1
buffer busy waits 1,800 0 1 1 0.0 .1
SQL*Net more data to client 29,161 0 1 0 0.2 .1
direct path read 7,696 0 1 0 0.0 .0
db file scattered read 316 0 1 2 0.0 .0
latch: shared pool 144 0 0 2 0.0 .0
CSS initialization 30 0 0 3 0.0 .0
cursor: pin S 10 0 0 9 0.0 .0
row cache lock 41 0 0 2 0.0 .0
latch: row cache objects 19 0 0 3 0.0 .0
log file switch (private str 8 0 0 7 0.0 .0
library cache: mutex X 28 0 0 2 0.0 .0
latch: cache buffers chains 54 0 0 1 0.0 .0
latch free 290 0 0 0 0.0 .0
control file sequential read 1,568 0 0 0 0.0 .0
log file switch (checkpoint 4 0 0 6 0.0 .0
direct path sync 8 0 0 3 0.0 .0
latch: redo allocation 60 0 0 0 0.0 .0
SQL*Net break/reset to clien 34 0 0 1 0.0 .0
latch: enqueue hash chains 45 0 0 0 0.0 .0
latch: cache buffers lru cha 7 0 0 2 0.0 .0
latch: session allocation 5 0 0 1 0.0 .0
latch: object queue header o 6 0 0 1 0.0 .0
ASM file metadata operation 30 0 0 0 0.0 .0
latch: In memory undo latch 15 0 0 0 0.0 .0
latch: undo global data 8 0 0 0 0.0 .0
SQL*Net message from client 6,362,536 0 278,225 44 33.7
jobq slave wait 7,270 100 3,635 500 0.0
SQL*Net more data from clien 7,976 0 15 2 0.0
SQL*Net message to client 6,362,544 0 8 0 33.7
Background Wait Events DB/Inst: XXXXXs Snaps: 5635-5636
-> Only events with Total Wait Time (s) >= .001 are shown
-> ordered by Total Wait Time desc, Waits desc (idle events last)
Avg %Total
%Tim Total Wait wait Waits Call
Event Waits out Time (s) (ms) /txn Time
log file parallel write 299,537 0 164 1 1.6 9.7
log file sequential read 698 0 16 24 0.0 1.0
db file parallel write 9,556 0 13 1 0.1 .8
os thread startup 146 0 10 70 0.0 .6
control file parallel write 2,037 0 2 1 0.0 .1
Log archive I/O 35 0 1 30 0.0 .1
LGWR wait for redo copy 2,447 0 0 0 0.0 .0
db file async I/O submit 9,556 0 0 0 0.1 .0
db file sequential read 145 0 0 2 0.0 .0
Disk file operations I/O 349 0 0 0 0.0 .0
db file scattered read 30 0 0 4 0.0 .0
control file sequential read 5,837 0 0 0 0.0 .0
ADR block file read 19 0 0 4 0.0 .0
ADR block file write 5 0 0 15 0.0 .0
direct path write 14 0 0 2 0.0 .0
direct path read 3 0 0 7 0.0 .0
latch: shared pool 3 0 0 6 0.0 .0
log file single write 56 0 0 0 0.0 .0
latch: redo allocation 53 0 0 0 0.0 .0
latch: active service list 1 0 0 3 0.0 .0
latch free 11 0 0 0 0.0 .0
rdbms ipc message 314,523 5 57,189 182 1.7
Space Manager: slave idle wa 4,086 88 18,996 4649 0.0
DIAG idle wait 7,185 100 7,186 1000 0.0
Streams AQ: waiting for time 2 50 4,909 ###### 0.0
Streams AQ: qmn slave idle w 129 0 3,612 28002 0.0
Streams AQ: qmn coordinator 258 50 3,612 14001 0.0
smon timer 43 2 3,605 83839 0.0
pmon timer 1,199 99 3,596 2999 0.0
SQL*Net message from client 17,019 0 31 2 0.1
SQL*Net message to client 12,762 0 0 0 0.1
class slave wait 28 0 0 0 0.0
thank you very much!Hi: just know it now: it is a large amount of 'concurrent transaction' designed in this "Volume Test" - to simulate large incoming transaction volme, so I guess wait in eq:TX - row is expected.
The fact: (1) redo logs at uat server is known to not well-tune for configurations (2) volume test slow 5%, however data amount in its test is kept the same by each time import production data, by the team. So why it slowed 5% this year?
The wait histogram is pasted below, any one interest to take a look? any ideas?
Wait Event Histogram DB/Inst: XXXX/XXXX Snaps: 5635-5636
-> Total Waits - units: K is 1000, M is 1000000, G is 1000000000
-> % of Waits - column heading: <=1s is truly <1024ms, >1s is truly >=1024ms
-> % of Waits - value: .0 indicates value was <.05%, null is truly 0
-> Ordered by Event (idle events last)
Total ----------------- % of Waits ------------------
Event Waits <1ms <2ms <4ms <8ms <16ms <32ms <=1s >1s
ADR block file read 19 26.3 5.3 10.5 57.9
ADR block file write 5 40.0 60.0
ADR file lock 6 100.0
ARCH wait for archivelog l 14 100.0
ASM file metadata operatio 30 100.0
CSS initialization 30 100.0
Disk file operations I/O 9090 97.2 1.4 .6 .4 .2 .1 .1
LGWR wait for redo copy 2447 98.5 .5 .4 .2 .2 .2 .1
Log archive I/O 35 40.0 8.6 25.7 2.9 22.9
SQL*Net break/reset to cli 34 85.3 8.8 5.9
SQL*Net more data to clien 29K 99.9 .0 .0 .0 .0 .0
buffer busy waits 1800 96.8 .7 .7 .6 .3 .4 .5
control file parallel writ 2037 90.7 5.0 2.1 .8 1.0 .3 .1
control file sequential re 7405 100.0 .0
cursor: pin S 10 10.0 90.0
db file async I/O submit 9556 99.9 .0 .0 .0
db file parallel read 1 100.0
db file parallel write 9556 62.0 32.4 1.7 .8 1.5 1.3 .1
db file scattered read 345 72.8 3.8 2.3 11.6 9.0 .6
db file sequential read 6199 97.2 .2 .3 1.6 .7 .0 .0
direct path read 7699 99.1 .4 .2 .1 .1 .0
direct path sync 8 25.0 37.5 12.5 25.0
direct path write 13K 97.8 .9 .5 .4 .3 .1 .0
enq: TX - row lock content 4480 .4 .7 1.3 3.0 6.8 12.3 75.4 .1
latch free 301 98.3 .3 .7 .7
latch: In memory undo latc 15 93.3 6.7
latch: active service list 1 100.0
latch: cache buffers chain 55 94.5 3.6 1.8
latch: cache buffers lru c 9 88.9 11.1
latch: call allocation 6 100.0
latch: checkpoint queue la 3 100.0
latch: enqueue hash chains 45 97.8 2.2
latch: messages 4 100.0
latch: object queue header 7 85.7 14.3
latch: redo allocation 113 97.3 1.8 .9
latch: row cache objects 19 89.5 5.3 5.3
latch: session allocation 5 80.0 20.0
latch: shared pool 147 90.5 1.4 2.7 1.4 .7 1.4 2.0
latch: undo global data 8 100.0
library cache: mutex X 28 89.3 3.6 3.6 3.6
log file parallel write 299K 95.6 2.6 1.0 .4 .3 .2 .0
log file sequential read 698 29.5 .1 4.6 46.8 18.9
log file single write 56 100.0
log file switch (checkpoin 4 25.0 50.0 25.0
log file switch (private s 8 12.5 37.5 50.0
log file sync 284K 93.3 3.7 1.4 .7 .5 .3 .1
os thread startup 146 100.0
row cache lock 41 85.4 9.8 2.4 2.4
DIAG idle wait 7184 100.0
SQL*Net message from clien 6379K 86.6 5.1 2.9 1.3 .7 .3 2.8 .3
SQL*Net message to client 6375K 100.0 .0 .0 .0 .0 .0 .0
Wait Event Histogram DB/Inst: XXXX/xxxx Snaps: 5635-5636
-> Total Waits - units: K is 1000, M is 1000000, G is 1000000000
-> % of Waits - column heading: <=1s is truly <1024ms, >1s is truly >=1024ms
-> % of Waits - value: .0 indicates value was <.05%, null is truly 0
-> Ordered by Event (idle events last)
Total ----------------- % of Waits ------------------
Event Waits <1ms <2ms <4ms <8ms <16ms <32ms <=1s >1s
SQL*Net more data from cli 7976 99.7 .1 .1 .0 .1
Space Manager: slave idle 4086 .1 .2 .0 .0 .3 3.2 96.1
Streams AQ: qmn coordinato 258 49.2 .8 50.0
Streams AQ: qmn slave idle 129 100.0
Streams AQ: waiting for ti 2 50.0 50.0
class slave wait 28 92.9 3.6 3.6
jobq slave wait 7270 .0 100.0
pmon timer 1199 100.0
rdbms ipc message 314K 10.3 7.3 39.7 15.4 10.6 5.3 8.2 3.3
smon timer 43 100.0 -
Workflow error in fork step, process control, wait event
I am using fork step in workflow which has 2 parallel branches. In 1st branch i have a user decision step followed by a task for posting PO document in case of approval. In the 2nd branch of fork step I have a wait step to wait for an event followed by the same task for posting document with a process control step after that in the end to cancel the workitem(workitem generated by user decision step in the 1st branch of fork). I created the event by using a custom BOR object.
After the fork step is triggered, i have both a wait event running and workitem generated. When i raise the wait event from SWUE by entering the event, object key etc it works fine i.e., the workitem in the other branch is set of logically deleted and workflow ends.
But if the wait event is triggered from the program i.e., using FM SWW_WI_CREATE_VIA_EVENT, both get an error message in workflow log(SWIA). The message is: Error when executing the binding between work item 000000XXXXXX and flow item 000000XXXXXX where workitem number is the workitem id of the posting document task and flow item id is the workflow parent idhi,
message is self explanatory.
Activate the event trace SWELS, then do the event with SWUE and within your program (als please use SAP_WAPI function modules).
Now compare the 2 events in SWEL to see what the differences are .
Kind regards, Rob Dielemans -
SharePoint 2013 - SPD Custom Workflow keeps sending multiple emails for a single Task
I have a workflow triggering on List item created only. There are multiple stages in the work flow and in each stage a single task is assigned to a group of people. Currently group is only having one user i.e. my own test user with a valid email address.
Workflow was running fine for first 5 runs but now it keeps sending multiple emails for each task multiple times and runs very slow. I have only single workflow in development server with 24GB RAM.
Enabling the Workflow log in Event viewer does not show any error or warnings. The only clue I see is WorkFlowManager Database table "DebugTrace" having multiple entries showing that WF is trying to send same email multiple times with failed attempts,
but in reality emails are being delivered as well.
http://server/site/_vti_bin/client.svc/sp.utilities.utility.SendEmail Retry sending email in xx.xx.xx Status: HTTPRetrying
http://server/site/_vti_bin/client.svc/sp.utilities.utility.SendEmail Retry sending email in xx.xx.xx Status: HTTPFailed
I could not get the exact phrase as I don't have direct access to development machine at work.
Any help or guidance will be highly appreciated.Yes, I have on-premise SP site, and here is the actual log I see in DebugTraces table.
Message Level Name Category
Attempt 1 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' failed with response '<Exception.
No Status Code>'. 2 HttpRequestFailed Http
Attempt 2 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' will be made in 00:00:06.
2 HttpRequestRetrying Http
Attempt 2 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' failed with response '<Exception.
No Status Code>'. 2 HttpRequestFailed Http
Attempt 3 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' will be made in 00:00:07.
2 HttpRequestRetrying Http
Attempt 3 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' failed with response '<Exception.
No Status Code>'. 2 HttpRequestFailed Http
Attempt 4 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' will be made in 00:00:09.
2 HttpRequestRetrying Http
Attempt 4 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' failed with response '<Exception.
No Status Code>'. 2 HttpRequestFailed Http
Attempt 5 of the HTTP request to 'http://site/collection/_vti_bin/client.svc/sp.utilities.utility.SendEmail' will be made in 00:00:13.
2 HttpRequestRetrying Http -
Script to parse last 24 hours from TaskScheduler Log Cannot figure out how to prase a single task.
All,
I've been tasked with parsing a single task from a server scheduled task and email that to a couple individuals and a distribution list. I had the email portion working, and am now getting...
‘You cannot call a method on a null-valued expression.
$smtp.Send(&msg)
It is defined ‘$msg = new-object Net.Mail.MailMessage’
I also need to parse out only a specific task in the log. I have tried everything that I can think of and find to get to that level, but this is my first attempt at PowerShell. Here is what I have so far.
# Written by Shawn Miller #
# Parse Task Scheduler Log and #
# Email log to Regional Support #
# and End-Users #
# 4 FEB 14 ver. 1 #
# Parse scheduler log and create file
$yesterday = (get-date) - (new-timespan -day 1)
$events = get-winevent -FilterHashtable @{logname = "Microsoft-Windows-TaskScheduler/Operational"; ID = "201","202"; StartTime = $yesterday} | Format-List -Property Message | out-file "c:\stuff\test.log"
$events |foreach {
$_
# Create new email
$smtpServer = “phcmail.peabodyenergy.com”
$msg = new-object Net.Mail.MailMessage
#From Address
$msg.From = "Monitoring Admin <[email protected]>"
#To Address, Copy the below line for multiple recipients
$msg.To.Add(“[email protected]”)
#$msg.To.Add(“[email protected]”)
#$msg.To.Add(“[email protected]”)
#$msg.To.Add(“[email protected]”)
#Message Body
$msg.Body=”Attached is the status report for the EoM Midwest Engineering files copied to STLEN1.”
#Message Subject
$msg.Subject = “EoM Transfer report”
write-host "SENDING FILES"
#your file location
$files=Get-ChildItem “C:\Stuff\report\”
Foreach($file in $files)
Write-Host “Attaching File :- ” $file
$attachment = New-Object System.Net.Mail.Attachment –ArgumentList C:\Stuff\report\$file
$msg.Attachments.Add($attachment)
$smtp.Send($msg)
$attachment.Dispose();
$msg.Dispose();
write-host "Mail Sent Successfully"
Any help would be greatly appreciated.
Respectfully,
ShawnI would use PowerShell to do this but you need to fix a lot of the code you have copied from various places. Most of it is old.
Start with this:
#Parse scheduler log and create file
$yesterday =[DateTime]::Today.AddDays(-1)
get-winevent -FilterHashtable @{logname = "Microsoft-Windows-TaskScheduler/Operational"; ID = "201","202"; StartTime = $yesterday} |
Format-List -Property Message |
out-file c:\stuff\test.log
$mailprops=@{
SmtpServer='phcmail.peabodyenergy.com'
From ='Monitoring Admin <[email protected]>'
To='[email protected]','[email protected]'
Body='Attached is the status report for the EoM Midwest Engineering files copied to STLEN1.'
Subject='EoM Transfer report'
$files=Get-ChildItem C:\Stuff\report\
Send-MailMessage @mailprops -Attachments $files
write-host "Mail Sent Successfully"
It is more likely to work assuming you have access to an SMTP server which is not likely in a domain. Check with your domain admins to find out how to gain access.
¯\_(ツ)_/¯ -
Find the Wait events for an objects.
Hi Gurus.
I need you help to find out the wait events for a particular table and index when batch export job running from the application. I have done some work around to to find out, but i am not able to figure out the issue or what are the wait events. i am working on linux 4node rac 11gR2.
Below are the steps i have done.
1. find object_id for a table finding the wait events to that object_id.
SYS@ccmintpt1 SQL>select data_object_id from dba_objects where object_name='ACCOUNT_DETAIL_DENORM';
DATA_OBJECT_ID
82646
88518
84184
SYS@ccmintpt1 SQL>select w.sid,w.event,w.wait_class,w.wait_class# from gv$session s,gv$session_wait w where s.row_wait_obj#=82646;
no rows selected
SYS@ccmintpt1 SQL>select w.sid,w.event,w.wait_class,w.wait_class# from gv$session s,gv$session_wait w where s.row_wait_obj#=88518;
no rows selected
SYS@ccmintpt1 SQL>select w.sid,w.event,w.wait_class,w.wait_class# from gv$session s,gv$session_wait w where s.row_wait_obj#=84184;
no rows selected
2. find the object id for the index of that table and finding the wait events to that object_id.
SYS@ccmintpt1 SQL>select data_object_id from dba_objects where object_name='XAK2ACCOUNT_DETAIL_DENORM';
DATA_OBJECT_ID
88655
SID EVENT WAIT_CLASS WAIT_CLASS#
1 rdbms ipc message Idle 6
2 heartbeat monitor sleep Idle 6
3 rdbms ipc message Idle 6
4 wait for unread message on broadcast channel Idle 6
6 SQL*Net message from client Idle 6
7 SQL*Net message from client Idle 6
8 SQL*Net message from client Idle 6
9 SQL*Net message from client Idle 6
10 SQL*Net message from client Idle 6
11 SQL*Net message from client Idle 6
12 SQL*Net message from client Idle 6
13 SQL*Net message from client Idle 6
1876 SQL*Net message from client Idle 6
1877 VKTM Logical Idle Wait Idle 6
1878 rdbms ipc message Idle 6
1879 rdbms ipc message Idle 6
1880 rdbms ipc message Idle 6
1881 SQL*Net message from client Idle 6
3200 SQL*Net message from client Idle 6
3210 SQL*Net message from client Idle 6
3212 db file sequential read User I/O 8
3213 SQL*Net message from client Idle 6
3214 SQL*Net message from client Idle 6
3216 SQL*Net message from client Idle 6
3751 rdbms ipc message Idle 6
3752 gcs remote message Idle 6
3754 rdbms ipc message Idle 6
3756 SQL*Net message from client Idle 6
3757 SQL*Net message from client Idle 6
1326 SQL*Net message from client Idle 6
1876 Streams AQ: waiting for time management or cleanup tasks Idle 6
1877 VKTM Logical Idle Wait Idle 6
1878 rdbms ipc message Idle 6
1879 rdbms ipc message Idle 6
1880 rdbms ipc message Idle 6
1882 SQL*Net message from client Idle 6
3751 rdbms ipc message Idle 6
3752 gcs remote message Idle 6
3754 rdbms ipc message Idle 6
3756 rdbms ipc message Idle 6
3758 SQL*Net message from client Idle 6
3759 PX Deq: Execution Msg Idle 6
3200 SQL*Net message from client Idle 6
3210 SQL*Net message from client Idle 6
3212 db file sequential read User I/O 8
3213 SQL*Net message from client Idle 6
3214 SQL*Net message from client Idle 6
3216 SQL*Net message from client Idle 6
3751 rdbms ipc message Idle 6
3752 gcs remote message Idle 6
3754 rdbms ipc message Idle 6
3756 SQL*Net message from client Idle 6
3757 SQL*Net message from client Idle 6
3786 SQL*Net message from client Idle 6
3787 SQL*Net message from client Idle 6
1 heartbeat monitor sleep Idle 6
2 wait for unread message on broadcast channel Idle 6
314 rdbms ipc message Idle 6
315 Streams AQ: qmn coordinator idle wait Idle 6
627 pmon timer Idle 6
628 rdbms ipc message Idle 6
629 Streams AQ: waiting for messages in the queue Idle 6
940 Streams AQ: waiting for time management or cleanup tasks Idle 6
941 VKTM Logical Idle Wait Idle 6
942 rdbms ipc message Idle 6
1253 rdbms ipc message Idle 6
1254 rdbms ipc message Idle 6
1256 Space Manager: slave idle wait Idle 6
1566 DIAG idle wait Idle 6
1567 rdbms ipc message Idle 6
1568 Streams AQ: qmn slave idle wait Idle 6
1879 rdbms ipc message Idle 6
1880 smon timer Idle 6
1881 rdbms ipc message Idle 6
2192 PING Idle 6
2193 rdbms ipc message Idle 6
2194 rdbms ipc message Idle 6
2505 rdbms ipc message Idle 6
2506 rdbms ipc message Idle 6
2818 rdbms ipc message Idle 6
2819 rdbms ipc message Idle 6
2821 PX Deq: reap credit Other 0
3131 DIAG idle wait Idle 6
3132 jobq slave wait Idle 6
3444 rdbms ipc message Idle 6
3445 jobq slave wait Idle 6
3757 ges remote message Idle 6
3758 rdbms ipc message Idle 6
3759 VKRM Idle Idle 6
4070 gcs remote message Idle 6
4072 rdbms ipc message Idle 6
4383 gcs remote message Idle 6
4385 PX Deq: Execution Msg Idle 6
4696 rdbms ipc message Idle 6
4697 rdbms ipc message Idle 6
1 rdbms ipc message Idle 6
2 heartbeat monitor sleep Idle 6
3 rdbms ipc message Idle 6
4 wait for unread message on broadcast channel Idle 6
6 SQL*Net message from client Idle 6
From this output, what are the waits events i need to take into consideration.
Is this the right approach to follow?
Please let me know.
Thanks in advance.user13162661 wrote:
Hi Gurus.
I need you help to find out the wait events for a particular table and index when batch export job running from the application. I have done some work around to to find out, but i am not able to figure out the issue or what are the wait events. i am working on linux 4node rac 11gR2.
Below are the steps i have done.
1. find object_id for a table finding the wait events to that object_id.
SYS@ccmintpt1 SQL>select data_object_id from dba_objects where object_name='ACCOUNT_DETAIL_DENORM';
DATA_OBJECT_ID
82646
88518
84184
SYS@ccmintpt1 SQL>select w.sid,w.event,w.wait_class,w.wait_class# from gv$session s,gv$session_wait w where s.row_wait_obj#=82646;
no rows selected
SYS@ccmintpt1 SQL>select w.sid,w.event,w.wait_class,w.wait_class# from gv$session s,gv$session_wait w where s.row_wait_obj#=88518;
no rows selected
SYS@ccmintpt1 SQL>select w.sid,w.event,w.wait_class,w.wait_class# from gv$session s,gv$session_wait w where s.row_wait_obj#=84184;
no rows selected
2. find the object id for the index of that table and finding the wait events to that object_id.
SYS@ccmintpt1 SQL>select data_object_id from dba_objects where object_name='XAK2ACCOUNT_DETAIL_DENORM';
DATA_OBJECT_ID
88655
SID EVENT WAIT_CLASS WAIT_CLASS#
1 rdbms ipc message Idle 6
2 heartbeat monitor sleep Idle 6
3 rdbms ipc message Idle 6
4 wait for unread message on broadcast channel Idle 6
6 SQL*Net message from client Idle 6
7 SQL*Net message from client Idle 6
8 SQL*Net message from client Idle 6
9 SQL*Net message from client Idle 6
10 SQL*Net message from client Idle 6
11 SQL*Net message from client Idle 6
12 SQL*Net message from client Idle 6
13 SQL*Net message from client Idle 6
1876 SQL*Net message from client Idle 6
1877 VKTM Logical Idle Wait Idle 6
1878 rdbms ipc message Idle 6
1879 rdbms ipc message Idle 6
1880 rdbms ipc message Idle 6
1881 SQL*Net message from client Idle 6
3200 SQL*Net message from client Idle 6
3210 SQL*Net message from client Idle 6
3212 db file sequential read User I/O 8
3213 SQL*Net message from client Idle 6
3214 SQL*Net message from client Idle 6
3216 SQL*Net message from client Idle 6
3751 rdbms ipc message Idle 6
3752 gcs remote message Idle 6
3754 rdbms ipc message Idle 6
3756 SQL*Net message from client Idle 6
3757 SQL*Net message from client Idle 6
1326 SQL*Net message from client Idle 6
1876 Streams AQ: waiting for time management or cleanup tasks Idle 6
1877 VKTM Logical Idle Wait Idle 6
1878 rdbms ipc message Idle 6
1879 rdbms ipc message Idle 6
1880 rdbms ipc message Idle 6
1882 SQL*Net message from client Idle 6
3751 rdbms ipc message Idle 6
3752 gcs remote message Idle 6
3754 rdbms ipc message Idle 6
3756 rdbms ipc message Idle 6
3758 SQL*Net message from client Idle 6
3759 PX Deq: Execution Msg Idle 6
3200 SQL*Net message from client Idle 6
3210 SQL*Net message from client Idle 6
3212 db file sequential read User I/O 8
3213 SQL*Net message from client Idle 6
3214 SQL*Net message from client Idle 6
3216 SQL*Net message from client Idle 6
3751 rdbms ipc message Idle 6
3752 gcs remote message Idle 6
3754 rdbms ipc message Idle 6
3756 SQL*Net message from client Idle 6
3757 SQL*Net message from client Idle 6
3786 SQL*Net message from client Idle 6
3787 SQL*Net message from client Idle 6
1 heartbeat monitor sleep Idle 6
2 wait for unread message on broadcast channel Idle 6
314 rdbms ipc message Idle 6
315 Streams AQ: qmn coordinator idle wait Idle 6
627 pmon timer Idle 6
628 rdbms ipc message Idle 6
629 Streams AQ: waiting for messages in the queue Idle 6
940 Streams AQ: waiting for time management or cleanup tasks Idle 6
941 VKTM Logical Idle Wait Idle 6
942 rdbms ipc message Idle 6
1253 rdbms ipc message Idle 6
1254 rdbms ipc message Idle 6
1256 Space Manager: slave idle wait Idle 6
1566 DIAG idle wait Idle 6
1567 rdbms ipc message Idle 6
1568 Streams AQ: qmn slave idle wait Idle 6
1879 rdbms ipc message Idle 6
1880 smon timer Idle 6
1881 rdbms ipc message Idle 6
2192 PING Idle 6
2193 rdbms ipc message Idle 6
2194 rdbms ipc message Idle 6
2505 rdbms ipc message Idle 6
2506 rdbms ipc message Idle 6
2818 rdbms ipc message Idle 6
2819 rdbms ipc message Idle 6
2821 PX Deq: reap credit Other 0
3131 DIAG idle wait Idle 6
3132 jobq slave wait Idle 6
3444 rdbms ipc message Idle 6
3445 jobq slave wait Idle 6
3757 ges remote message Idle 6
3758 rdbms ipc message Idle 6
3759 VKRM Idle Idle 6
4070 gcs remote message Idle 6
4072 rdbms ipc message Idle 6
4383 gcs remote message Idle 6
4385 PX Deq: Execution Msg Idle 6
4696 rdbms ipc message Idle 6
4697 rdbms ipc message Idle 6
1 rdbms ipc message Idle 6
2 heartbeat monitor sleep Idle 6
3 rdbms ipc message Idle 6
4 wait for unread message on broadcast channel Idle 6
6 SQL*Net message from client Idle 6
From this output, what are the waits events i need to take into consideration.
Is this the right approach to follow?
Please let me know.
Thanks in advance.what actual problem are you trying to solve?
post SQL & results that have you concerned about wait events
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