How to take awr report

Similar Questions

• The AWR report.

  I received a task to read the AWR report, what do I really see in the AWR report? The report I got is 11Hours where they have a lot of data migrations. I know how to take AWR report, but I'm not really sure. What I find in report AWR to ensure that the database performs well during the migration.
  

  select * from v$version
  BANNER                                                                           
  -------------------------------------------------------------------------------- 
  Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production     
  PL/SQL Release 11.2.0.2.0 - Production                                           
  CORE     11.2.0.2.0     Production                                                         
  TNS for HPUX: Version 11.2.0.2.0 - Production                                    
  NLSRTL Version 11.2.0.2.0 - Production                                           

  An AWR report has a ton of information - covering how read all sections (and then how to answer) would mean at least a book.

  Level the most basic, however, you want to probably take a look at the events of top 5 waiting to see that the database is waiting, the time of database is average time spent vs in the header to see how busy the database, and the various statements of Top SQL by x to see the SQL statements are represented the majority of the database is waiting to see what statements could be tuned to improve performance.

  Justin

• How to activate the keys to generate and view the AWR reports Developer SQL

  Version: 4.0.3.16

  Build: HAND - 16.84

  S/n > (sid) > Performance > AWR report viewer

  I am able to select the start and end ID, but the following buttons are disabled:

  • Entries Toggel
  • Generate the report
  • Save to file
  • Open in browser

  What needs to be done to enable these buttons?

  Hello

  After entering start Id and the Id of the end, the button "report" will be activated, and then after that the report generated (by clicking the report generate) rest buttons button is activated. As shown in the image below.

  

  Hope it will be useful.

  Kind regards

  Sanjaya

• How to find the total number of queries from the awr report

  Hi all
  
  Is it possible to find on the total number of queries fired on the database of an AWR report.

  No, it means that there are 26,459,500 executions and captured SQLs accounts 93.9% of total executions, i.e. the 24 845 execs 470.5.

• How to read the report of the unit for HP Deskjet 1510

  Hi HP.

  I see the software provided with this printer, it has this option to print the reports of the unit.

  Please help on how to read this report because it consist of unknown coding and other things.

  I would be grateful if your side can help me on this coz I guess we can follow our consumption through this report.

  If this isn't the goal, maybe you can suggest another way to get understandable use of reports?

  Kind regards

  Nadiya

  Hello Nadiya,

  Welcome to the forums

  I understand that you are looking for a usage report. The printer prints a test page and you can see the number of pages on this page, as well as information about the printer, such as serial number, etc.. If there is anything else that can say 'use' it please let me know and I'll do my best to help.

  Click on this link: streaks of ink, fixing faded prints and other common print quality problems

  In the guide, look under "Solution 6: print and evaluate a page of test and troubleshooting of faults" and print a test page.

  Take care

• Number of processors and cores in AWR report

  Hello

  I have a report AWR to my system and a couple of entries confuse me.

  Q1. It's showing 3 carrots, 2 Sockets and 4 processors. The CPU and the Sockets, I understand that 2 chips with 2 processors per chip so 4 CPU.

  What confuses me, is the fact that it shows 3 carrots. Is that that by CPU cores? Othererwise 3-4 makes no sense?

  Q2. What is the difference between DB, time CPU and CPU DB?

  My understanding is that DB time is the time used by the process, including the time processor and wait time. Because a system can have more than one processor, it is quite natural that DB time may exceed to elapse time - since you have multiple processors that contribute to this time (I guess that DB time cannot be really more time elapse * our processors?)

  In fact, you could say if DB time does not exceed the time to elapse, then you have a Nock idle system?

  My understanding of time CPU, is that it's time where each process actually gets treatment CPU (so it does not time-out). I think that the AWR report confusingly used the term time CPU and CPU DB, to mean the same thing?

  clearly greatly appreciated

  Jim

  
  

  Hi Jimbo,

  Q1. "Nuclei" in the CWA report represents the quantity of physical processor cores and the "processors" takes into account the simultaneous multithreading so in your case, one option could be a CPU Socket has a dual core (not type hyperthreading) and the other CPU Socket has one heart (hyperthreaded). If this is the case, you will have 3 physical 4 CPU cores, (because it takes into account the hyper-threaded architecture) and 2 taken. It's just an option, you will need to check it out.

  Q2. No-Idle wait events are events that are not classified by Oracle as a "Idle" of events to wait wait:

  • Example of Idle wait-event: SQL * Net client message (server process is waiting for the client process to do something)
  • Idle wait-event example: db file scattered read (event waiting user IO representing a multilock read as full scan of the table or full scan small index.
  • You can get a complete list of active waiting events by running:

  Select name from v$ event_name where wait_class <> "inactive".

  • You can get a full list of the events of inactive waiting by running:

  Select name from v$ event_name where wait_class = 'Idle '.

  
  

  DB time is therefore the sum of all events of active waiting and also the CPU time that is a statistic:

  • You can see the value of the amount of time CPU in 10s of miiliseconds (centisecondes) for an exeuting session:

  SELECT THE VALUE

  FROM v$ sesstat JOIN v$ statname USING (statistics #)

  WHERE name = 'CPU used by this session' AND SID =

  • You can see the value of the time total CPU in 10s of milliseconds (centisecondes) for the instance of exeuting:

  SELECT the value from v$ sysstat

  WHERE name = 'CPU used by this session.

• awrrpti script - awr report fails

  Friends...

  OS: Linux

  DB: 11 GR 2

  I'm trying to solve this riddle, supposed to be a simple fix but not able to finish it...

  We run awrrpti script to generate AWR report for the whole day. What I do is ask DBA_HIST_SNAPSHOT and get the snapshot min (first) and max (last) of the day. Then I fed that range from snap_id to awrrpti script to generate AWR report all day to single instance.

  It works perfectly well, but if instance gets restarted during the day then my approach above does not work and AWR report generation fails.

  Current approach:

  1. the DBA_HIST_SNAPSHOT query

  2. download MIN (snap_id), MAX (snap_id) for the day

  3. power #2 to awrrpti via bind variable

  4 generate the unique HTML report for the instance

  Query used to collect the id of component software snap-in min/max:

  Select min (snap_id), max (snap_id)

  Of

  (select snap_id, begin_interval_time, end_interval_time

  of dba_hist_snapshot

  where begin_interval_time > = trunc(sysdate-1)

  and being_intreval_time < = trunc(sysdate-1+23/24)

  );

  Tips to avoid failures of AWR report generation if instance gets restarted?

  How to go to the entry below in simple sql? It is possible to start «WITH max_startup...» "in the sql script?

  Yes, there is no problem. Is it just another way to write the query

  But you can use this one instead:

  SELECT MIN(dhs.snap_id) min_snap_id, MAX(dhs.snap_id) max_snap_id
  FROM DBA_HIST_SNAPSHOT dhs,
  (SELECT MAX(startup_time) max_startup_time FROM DBA_HIST_SNAPSHOT) mst
  where dhs.startup_time = mst.max_startup_time
  and begin_interval_time >= trunc(SYSDATE-1)
  and begin_interval_time <= trunc(sysdate-1+23/24)
  ;
  

  again will try, test and update this blog

  Forum! Please, I beg you.

  Concerning

  Juan M

• questions about the awr report &amp; sqlt

  Hi guys,.

  DB version: 10.2.0.5

  Need your advice.

  For my AWR report, I put the 30-day retention period. From my understanding, the information in awr report are taken from several views of dba_hist *.

  Points of view takes only those albums n intenstive SQL Statistics on resources?

  I ask this because I have a doubt. Let's say that on 18/03/2014, I detected a long SQL with sql id xxx.

  Using SQLT (such method), I can only see the historical performance of Plan (delta) for this particular SQLs 16/03, 17/03, 18/03.

  In this case, we can say that the SQLs shot only 3 days for the last 30 days? Or it can also mean that the particular SQL was not classfified at the top of the page resource n intensive 18/02 to 15/03 SQLs (probably use a better plan - for example: plan a different value)?

  Thank you

  That is right.

  Concerning

  Jonathan Lews

• How to create a report based on the item selected from the list of selection?

  Hello

  I created a tables_LOV based on:

  Select table_name table_name user_tab_cols r, d

  where column_name like '% _type % '.

  Then I created a ListOfTables page element, display in a selection list and pointing to tables_LOV.

  I run the page, and I can choose the table I want in the drop-down list.

  How to create a report based on the selected element? (ex: select * from selected_table)

  Thanks in advance

  Salah

  Hi Salah,

  Allright, take a look at this page: http://apex.oracle.com/pls/apex/f?p=vincentdeelen:collection_report

  I think that simulates what you are trying to accomplish. I've implemented the simplest method I could think of.

  The report is based on a collection of apex. If you are not familiar with this, you should study the documentation: APEX_COLLECTION

  To recreate my example, you should:

  (1) create a report (interactive) on your collection

  SELECT *
     FROM APEX_collections
   WHERE collection_name = 'MY_COLLECTION'
  

  (2) create a selection list page_item for the tables that you want to display (in my case, this is called "P38_TABLES")

  (3) create a dynamic action that triggers on the evolution of your selection list page_item. Dynamic action must be a parade of PL/SQL procedure the following code:

  declare
    l_query varchar2(4000);
  begin
    l_query := 'select * from '||:P38_TABLES;
    if apex_collection.collection_exists
          ( p_collection_name => 'MY_COLLECTION' )
    then
      apex_collection.delete_collection
        ( p_collection_name => 'MY_COLLECTION' );
    end if;
  
    apex_collection.create_collection_from_query
      ( p_collection_name => 'MY_COLLECTION'
      , p_query           => l_query
      );
  end;
  

  Make sure that you add your page_item 'Page to send items' section.

  (4) add a real extra action that makes an update of the report area.

  Here are two photos describing the da:

  http://www.vincentdeelen.com/images/OTN/OTN_COLLECTION_REPORT_DA1.PNG

  http://www.vincentdeelen.com/images/OTN/OTN_COLLECTION_REPORT_DA2.PNG

  Good luck and greetings,

  Vincent

  http://vincentdeelen.blogspot.com

• The main events in AWR report

  Hi all

  11.2.0.1

  AIX 6.1

  I had this big event awr report.

  Can you help me how to interpret this please. Or what is the value of looking here?  Thank you very much

  The main events in AWR report

  I have

  n

  Snap              s       Snap                                                                                                    A

  Snap the t hard event time start Avgwt DB A

  Time event ID # (m) expected grade (s) (ms) % S waiting class

  ------ --------------- --- ---------- ---------------------------------------- ----- -------------- -------------- -------- ------- ------ ---------------

  13902 13/09/16 09:00 1 60.05 os thread start 1 140,00 11.08 79,11 56 0,0 Concurrency

  13902 13/09/16 09:00 60.05 1 CPU time 2 0.00 0.00 9,45 48 0.0 CPU

  13902 13/09/16 09:00 1 60.05 log file parallel write 3 1506.00 1.84 1.22 9 0.0 IO system

  13902 13/09/16 09:00 1 60.05 control file parallel write 4 1291.00 1.41 1.09 7 0.0 IO system

  13902 13/09/16 09:00 1 log file sync 60.05 5 721.00 1.03 1.43 commit 5 0.0

  13903 13/09/16 10:00 1 60.05 os thread start 1 138.00 10.36 75,10 47 0.0 Concurrency

  13903 13/09/16 CPU 60.05 1 10:00 hour 2 0.00 0.00 10,28 47 0.0 CPU

  13903 13/09/16 10:00 1 60.05 log file parallel write 3 1575.00 1.73 1.10 8 0.0 IO system

  13903 13/09/16 10:00 1 60.05 direct path read 3 486.00 1.73 3.56 8 0.0 IO user

  13903 13/09/16 10:00 1 60.05 control file parallel write 4 1285.00 1.51 1.17 7 0.0 IO system

  13903 13/09/16 10:00 1 log file sync 60.05 5 823.00 1.08 1.32 commit 5 0.0

  13904 13/09/16 11:00 60.05 1 CPU time 1 0.00 17,06 0.00 CPU 32 0.0

  13904 13/09/16 11:00 1 60.05 os thread start 2 145.00 10,65 73.46 20 0.0 Concurrency

  Thanks, I just tell the users, there is no problem in the comic book, and the stats is normal and no suspiscious activity and that the problem is in the minds of users only.

• What is the measure of the value "Waiting" in AWR report?

  Event	Expected	% Time - out	Wait total (s) times	AVG wait (ms)	Waiting for /txn
  SQL * Net more data from dblink	406 747		466	1	184.13
  reading of scattered files DB	28 659		330	12	12.97
  SQL * Net message from dblink the	30 115		254	8	13.63
  log file parallel write	21 021		177	8	9.52

  Hi all

  As the example below, I question what is the measure of the value "Waiting" in the section "event wait" AWR report?

  Because "Expected" the value is high, but "Queue time Total (s)" is low. example "SQL * Net message from dblink the" a 30 115 "expected' but 'Queue time Total (s)' lower 'DB file scattered read' w 28 659 'wait '.

  Could you please explain more about the value "waiting"?

  Thank you

  Hiko

  taohiko wrote:

  Event	Waits	%Time -outs	Wait total (s) times	Avg wait (ms)	Waits /txn
  SQL * Net more data from dblink	406 747		466	1	184.13
  reading of scattered files DB	28 659		330	12	12.97
  SQL * Net message from dblink the	30 115		254	8	13.63
  log file parallel write	21 021		177	8	9.52

  Hi all

  As the example below, I question what is the measure of the value "Waiting" in the section "event wait" AWR report?

  It is simply a... count the number of times where the system had to "WAIT" on the specified event.

  Because "Expected" the value is high, but "Queue time Total (s)" is low. example "SQL * Net message from dblink the" a 30 115 "expected' but 'Queue time Total (s)' lower 'DB file scattered read' w 28 659 'wait '.

  Watch "AVG time-out.    In one case, there are fewer occurrences of the event, but the average wait by event time was higher.

  If I buy 3 burgers and pay $1000 each

  or I buy 500 burgers and pay $1.00 each.

  Why 3 hamburgers cost more than 500 burgers?

  Could you please explain more about the value "waiting"?

  "Waiting" is the number of times that the system had to wait for the named event, during the sampling period.

  "Total wait time" is the total time (measured in seconds) spent waiting on all occurrences of the specified event, during the sampling period.

  "Avg" wait"is the time (expressed in milliseconds) means spent on each occurrence of the specified event, during the sampling period.

  It seems pretty obvious.  You count how many times it happens something (wait), you measure it, time spent doing this something fracture (total wait time) and tells you the total time spent (total wait time) by the number of times it happened (waits) to find out the average time spent on each occurrence of that something.

  Thank you

  Hiko

• Details of SQL query in AWR report

  Hello
  
  In the AWR report, I found that there are a few SQL with full table scan queries
  How drill us in this topic and find which table have full analysis
  
  Yes with Explain plan we can do but is there another way in Oracle 11g
  Please let me know
  
  
  See you soon

  Knight wrote:

  In the AWR report, I found that there are a few SQL with full table scan queries
  How drill us in this topic and find which table have full analysis

  Yes with Explain plan we can do but is there another way in Oracle 11g
  Please let me know

  What, exactly, you look in the AWR report allowing you to decide that some SQL statements are complete tablescans but, at the same time, don't show you the tables that are being analyzed?

  If the statement is visible in the SQL "order by...» "sections of report then execution plans and workloed for education is also in the AWR. You can access either from Enterprise Manager, either by running the report $ORACLE_HOME/rdbms/admin/awrsqrpt.sql.

  Concerning
  Jonathan Lewis
  http://jonathanlewis.WordPress.com
  Author: core Oracle

• AWR report cannot locate the bad SQLs

  DB version: 11.2.0.2
  Platform: Solaris 10
  
  In our data base RAC 2 nodes, we have patterns of 20 applications. When an application is faced with performance problems, we try to generate AWR for the period in question. But the stats (like bad SQLs) for this scheme to be buried because there is another application SQLs performing even worse.
  
  I know that we cannot create AWR report for specific patterns. But I wonder how his stats are collected in a multi-schema RAC environments that will differentiate between applications.

  But the stats (like bad SQLs) for this scheme to be buried because there is another application SQLs performing even worse.

  Since all applications run in a database and query of the other application run bad then they will be the first candidate of tunning since these are taking more resources and impact on other application requests.
  You can also generate report of ASH for module specific or customer with assistance from under the option set in report of ash.

  set target_module_name = ";
  set target_action_name = ";
  set target_client_id = ";

• that means the great value of 'Call' recursive % in AWR report?

  Hi all.
  
  I saw "call recursive %: 85%" supported the section profile an awr report.
  --> This could be a problem?
  --> otherwise, depends on the type of application?
  
  ---
  
  From my understanding,.
  
  1. the client calls-> calls DBMS user
  2 recursive calls-> calls for DBMS internal, such as the process of background, function or procedures.
  
  ---
  
  I would like to hear about your experience.
  
  Thanks in advance.
  Best regards.

  a recursive call is a call, for example, which must be completed before the user SQL can be completed.

  Read this to understand what I mean:

  http://it.Toolbox.com/blogs/confessions/how-Oracle-really-works-27-recursive-calls-20300

  Osama...

• Problem of AWR report

  Hello..
  Trying to take the awr between two snapshot report I get the following error.
  ORA-20019: Database/Instance 976214629/1A was revived during the specified interval instant 26982-27006 ORA-06512: at "SYS." DBMS_SWRF_REPORT_INTERNAL', line 9875
  ORA-06512: at "SYS." DBMS_SWRF_REPORT_INTERNAL', line 1226
  ORA-06512: at "SYS." DBMS_WORKLOAD_REPOSITORY', line 915 ORA-06512: at line 1
  
  Database has recently improved from 10g to 11g r2.
  
  You have an idea?
  Best regards.
  
  
  Oracle Database 11 g Enterprise Edition Release 11.2.0.1.0 - 64 bit Production
  PL/SQL Release 11.2.0.1.0 - Production
  CORE 11.2.0.1.0 Production
  AMT for IBM/AIX RISC System/6000: Version 11.2.0.1.0 - Production
  NLSRTL Version 11.2.0.1.0 - Production

  The message "Instance of database/976214629/1 was revived during the snapshot specified interval" is explicit.

  If you have restarted a database instance you CANNOT Get an AWR report where the start snapshot is before restarting and the snapshot from the end after a reboot.
  A restarting database instance resets performance and other statistics used by AWR to CWA Yes 0 cannot calculate values (what he does 'end-snapshot-value' LESS 'begin-snapshot-value') because they would most likely be negative and certainly be false and misleading.

  Hemant K Collette