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ODTUG Webinar AWR Warehouse
2.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Enterprise Manager AWR Warehouse Enterprise Manager 12c, Release 4 Kellyn Pot’Vin, Consulting Member of Enterprise Manager Technical Team Strategic Customer Program GP Gongloor, Director of Product Management Oracle Corporation July 17th, 2014 Oracle Confidential
3.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle. Oracle Confidential 3
4.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Program Agenda 1 2 3 4 5 What is the AWR Warehouse Installation and ETL AWR Warehouse Interface and Features Use Cases Summary Oracle Confidential 4
5.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Program Agenda with Highlight 1 2 3 4 5 What is the AWR Warehouse Installation and ETL AWR Warehouse Interface and Features Use Cases Summary Oracle Confidential 5
6.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse - Business Drivers • Automatic Workload Repository (AWR) is the de facto performance repository for Oracle databases since 10g • Default retention period of 8 days prevents diagnosis of long term performance problems (“Compare performance during this quarter’s books close with last quarter’s”) • Increasing AWR retention period increases overhead and cost in critical production environments CRMFinance Supply Chain 0% 30% 60% 90% 120% 0% 30% 60% 90% 120% 0% 30% 60% 90% 120%
7.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse - Architecture • Central warehouse configured for long term AWR data retention • Historical and ongoing AWR snapshots collected from databases enabled for AWR warehouse • ETL jobs moves snapshots from source databases into AWR warehouse • Retention period configurable for weeks, months, years or forever (default)
8.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse Features • Warehouse dashboard tracking ETL jobs • All AWR features available on long term AWR data • Performance page • AWR report • ASH analytics • Compare Period ADDM • Compare Period Report • Integrated seamlessly into EM UI • Zero runtime overhead on source Production databases
9.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Program Agenda with Highlight 1 2 3 4 5 What is the AWR Warehouse Installation and ETL AWR Warehouse Interface and Features Use Cases Summary Oracle Confidential 9
10.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Why Have an AWR Warehouse? Oracle Confidential 10
11.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Requirements • AWR Warehouse Repository -11.2.0.4 or higher. • Preferred Credentials set up for all targets involved. • Discover the database you will use for your repository in the EM12c • Pre-discover any source database before able to add. • For a RAC target or AWR Warehouse, ensure you’ve set up a shared location for the ETL load files. Oracle Confidential 11
12.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR ETL Jobs Oracle Confidential – Internal/Restricted/Highly Restricted 12 DBMS Job on Source Database to directory Job in EM Job Service that pulls file from Source Target and then pushes to AWR Warehouse Target Directory Final DBMS Job Inserts data into AWR Warehouse All data identified by OLD/NEW DBID and with the EM_ID, (CAW_DBID_MAPPING in AWR WAREHOUSE) Source Target Enterprise Manager AWR Warehouse
13.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | “Under the Hood” Source Target ETL Job DBMS Scheduler Job Name: MGMT_CAW_EXTRACT Exec Call: begin dbsnmp.mgmt_caw_extract.run_extract; end; How Often: 3 Hour Intervals if “playing catch up”, otherwise, 24 hr interval. Oracle Confidential 13
14.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | EM Job Service Dump File Transfer • Runs 12hr intervals from time source target is added to AWR Warehouse. • Agent to Agent Direct Push Oracle Confidential 14
15.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | “Under the Hood” AWR Warehouse ETL Job Oracle Confidential 15 DBMS Scheduler Job Name: MGMT_CAW_LOAD Exec Call: begin dbsnmp.mgmt_caw_load.run_master; How Often: 5 Minute Intervals Biggest Resource Demand from the “run_master”: begin dbms_swrf_internal.move_to_awr(schname => :1); end;
16.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | ETL Load Duration to AWR Warehouse? • Daily uploads take just a matter of seconds • “Catch up” loads took anywhere from 2-12 min for over 2 GB file load. Oracle Confidential 16
17.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Behind the Scene(DBMS_SCHEDULER, AWR Warehouse) DELETE DBSNMP.CAW_LOAD_WORKERS WHERE NAME NOT IN ( SELECT JOB_NAME FROM DBA_SCHEDULER_RUNNING_JOBS WHERE OWNER = 'SYS') Oracle Confidential 17
18.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Installed on Source Database DBSNMP Schema CAW_EXTRACT_PROPERTIES : Information on ETL job, dump location and intervals. CAW_EXTRACT_METADATA : All data about extracts- times, failures, details. Oracle Confidential 18
19.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse DBSNMP Objects CAW_SPACE_USAGE: Populates resource consumption dashboard for AWR. CAW_PROPERTIES : Information about location of dump files, interval, retention time, etc. for AWR Warehouse. CAW_PRIV_GRANTS : View privileges within the EM Console CAW_LOAD_WORKERS : Only used during an actual ETL load process to the AWR Warehouse. Oracle Confidential 19
20.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse DBSNMP Objects CAW_SRC_DBS : Main info about source db’s, version, ETL status, etc. CAW_SRC_DB_INSTANCES: Instance information about source databases. CAW_LOAD_METADATA : AWR dump file local, last load, etc. CAW_LOAD_ERRORS : Populates the errors view in the console. CAW_DBID_MAPPING : Used to map all data between Enterprise Manager, AWR Warehouse and Database Identifiers. Oracle Confidential 20
21.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | 24 Databases X 10G of Data Over 3 Weeks…. Oracle Confidential 21
22.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Program Agenda with Highlight 1 3 2 4 5 What is the AWR Warehouse Installation and ETL AWR Warehouse Interface and Features Use Cases Summary Oracle Confidential 22
23.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Accessing the AWR Warehouse Targets Databases Performance AWR Warehouse Oracle Confidential 23
24.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse Console Interface Oracle Confidential 24
25.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse Configurations Along with AWR Warehouse Basics- • Configuration Status • Version of Repository Database • Host Information • Connect Info, (SID/Service Name, Port) • Space Usage, Upload Interval and Retention Oracle Confidential 25
26.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Console Breakdown- High Level Warehouse Info • Space Usage, (also available in the awrinfo.sql report.) • Number of Databases, Incident report access and any source databases Without Recent Uploads. Oracle Confidential 26
27.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Console Interface, Snapshots at a Glance • Displays snapshot upload space allocated by date. • Considerably less space when just adding daily, (48MB approximate…) Oracle Confidential 27
28.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | Working with AWR Source Databases in Repository • Highlight database from list, (clicking on target name will take you to performance home page for target.) • Run basic reports, view ASH Analytics or perform ADDM Comparisons. • Also Add databases from the options. Oracle Confidential 28
29.
Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | AWR Warehouse Source Databases • Clicking on any Target Name will take you to the performance home page for that target. • Target Type, DB Name, version info, owner and if snapshot, (ETL job) is enabled. • AWRW object dbsnmp.CAW_SRC_DBS. Oracle Confidential 29
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Copyright © 2014
Oracle and/or its affiliates. All rights reserved. | High Level Snapshot Data • Shows number of snapshots via days and counts. • Shows oldest and newest snapshot date. • AWRW object dbsnmp.CAW_SRC_DBS Oracle Confidential 30
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Oracle and/or its affiliates. All rights reserved. | Actions Drop Down • Most options are also in menu across top of database list. • Enable or Disable ETL Jobs for Source Databases. • Update snapshots via immediate run of ETL job on any source target in AWR Warehouse. Oracle Confidential 31
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Oracle and/or its affiliates. All rights reserved. | Would like to View Data Differently, Change Order? • Uncheck any Columns to view less information. • Can add Snapshot information, (add significant data to filter through…) Oracle Confidential 32
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Oracle and/or its affiliates. All rights reserved. | Viewing Errors with the AWR ETL Load **This can also be viewed in dbsnmp.CAW_LOAD_ERRORS Oracle Confidential 33
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Oracle and/or its affiliates. All rights reserved. | Security- Administrators of AWR Data in the Warehouse Allows the ability to remove and manage AWR snapshots within the AWR Warehouse, not just view warehouse data. Oracle Confidential 34
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Oracle and/or its affiliates. All rights reserved. | Program Agenda with Highlight 1 4 2 3 5 What is the AWR Warehouse Installation and ETL AWR Warehouse Interface and Features Use Cases Summary Oracle Confidential 35
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Oracle and/or its affiliates. All rights reserved. | Oracle Confidential 36
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Oracle and/or its affiliates. All rights reserved. | What Can I do with the AWR Warehouse? Oracle Confidential – Internal/Restricted/Highly Restricted 37 0 50000 100000 150000 200000 250000 300000 350000 400000 June 10, 2013 l_reads_s read_iops_max read_iops_direct read_iops_direct_max 0 100000 200000 300000 400000 500000 600000 June 10, 2014 l_reads_s read_iops_max read_iops_direct read_iops_direct_max
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Oracle and/or its affiliates. All rights reserved. | CPU Usage Issues “Nothing’s changed in months…” Oracle Confidential 38
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Oracle and/or its affiliates. All rights reserved. | Using the AWR Warehouse for Capacity Planning “Do we really need more partitioning and pruning? Our disk usage hasn’t increased this last year….” Oracle Confidential 39
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Oracle and/or its affiliates. All rights reserved. | Querying the AWR Warehouse Tips Update Scripts with DBID identified to filter. Join: • CAW_DBID_MAPPING on OLD_DBID/NEW_DBID=DBID • CAW_DBID_MAPPING on TARGET_NAME=TARGET_NAME Oracle Confidential 40
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Oracle and/or its affiliates. All rights reserved. | How Current AWR Queries Change from dba_hist_sys_time_model stm, dba_hist_snapshot s, gv$parameter p, dbsnmp.caw_dbid_mapping m where stm.stat_name in ('DB CPU','background cpu time') and LOWER(m.target_name)= '&dbname' and s.dbid= m.new_dbid and s.snap_id = stm.snap_id and s.dbid = stm.dbid and s.instance_number = stm.instance_number and p.name = 'cpu_count' and p.inst_id = s.instance_number) Oracle Confidential 41
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Oracle and/or its affiliates. All rights reserved. | Program Agenda with Highlight 1 5 2 3 4 What is the AWR Warehouse Installation and ETL AWR Warehouse Interface and Features Use Cases Summary Oracle Confidential 42
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Oracle and/or its affiliates. All rights reserved. | AWR Warehouse Offers • Incredible new repository to store AWR data from source targets. • Easy to use and familiar interface to run common reports and analyze data from • Simple schema additions to existing source database to manage jobs, inspect information or isolate issues. • Only small changes to existing AWR queries to enhance to AWR Warehouse queries. Oracle Confidential 43
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Oracle and/or its affiliates. All rights reserved. | Want to Learn More? Oracle Screenwatch: https://www.youtube.com/watch?v=StydMitHtuI DBAKevlar Blog Posts: http://dbakevlar.com/2014/06/awr-warehouse-in-em12c-rel-4/ http://dbakevlar.com/2014/06/awr-warehouse-in-em12c-rel-4-part-ii/ Scripts: http://dbakevlar.com/scripts/ Oracle Confidential 44
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Oracle and/or its affiliates. All rights reserved. | Oracle Confidential 45 Connect with me via Social Media:
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