![• Abbreviations:
– [N/B]: count(N)/ Byte(B) - (k)illo, (M)ega, (G)iga, (T)erra, [PEZY]
– [T] : Time - (u)micro, (m)illi, (s)econd, (h)our, (d)ay, (y)ear
– [m/s]: stats interval size, (m) 1 minute, (s) 15s, else, Real Time
• Limitations
– Run on oracle client 11.2 and 12cR1
– Statistic_level=Typical](https://image.slidesharecdn.com/oratopgadichen-techdays2016-240418083721-5e6eb14b/85/unix_linux_ORATOP_TechDays2016_presentations-41-320.jpg)
unix_linux_ORATOP_TechDays2016_presentations
- 1. ORATOP Do less ….get more … Gadi Chen Co-Founder –TopExperts www.topexperts.co.il Gadi.chen@topexperts.co.il +972-54-6804475
- 2. About Me… Oracle and Apps DBA since 2000 Worked for oracle for the past 7 Years Founder Of TopExperts since 2013 Consult to top customer in Israel Board member of iloug
- 3. About TopExperts . . . • Experts services for – Oracle Technology – MS-Sql , MySql etc … – kdb+ , BigData Solutions • Business partners of – Oracle – KX Systems
- 4. Agenda • How to work less and get more • Let’s start with a question ?
- 5. What is Oratop ? • A Text Base utility to monitor Oracle DB • compatibility – 11.2 onwards – Unix/Linux OS ( no Windows)
- 6. What Oratop can do? • Real-Time Database Monitoring • Real-Time Database performance • Identifying contention and bottlenecks • Not replacement of ( ash, addm, awr etc..)
- 7. Oratop scope • Single Instance • RAC/ASM Aware • PDB/CDB Aware (12c…) • Standby Aware , Active Data Guard
- 8. How to Install ? • Download from MOS : 1500864.1 • And …. Start use it • Error while loading shared libraries:libclntsh.so.12.1 – export ORACLE_HOME=database home – export LD_LIBRARY_PATH=$ORACLE_HOME/lib – export PATH=$ORACLE_HOME/bin:$PATH
- 9. Lets Start . . . • ./oratop system@sid • ./oratop -f -d -i 10 / as sysdba Command line arguments
- 10. Command line vs Runtime
- 11. Command line vs Runtime
- 12. Command line vs Runtime
- 13. Need Help ? oratop -h ./oratop -h
- 14. How we can connect ? • SqlNet - TNS_ADMIN • EZ-connect -
- 15. Main Screen
- 16. Sections • Header – Global Database information • Databases – database Instance activity • DB Events – AWR like top 5 events • Process/SQL – Processes/SQL information
- 17. Sections Header Database section Database Event section Process / Sql info Section
- 18. Header – Global Database information
- 19. Oracle DB version Database Role : Primary, Secondary Db Name time as of the most recent stats (hh24:mi:ss) Database Uptime, since startup total number of instance(s) , RAC total user sessions (active/inactive) number of distinct users
- 20. database time as %(dbtime/cpu) (turn red if greater 99%) flashback recovery area %used ( turn red when greater 90%) diag active problem count (faults) global database memory total (sga+pga)
- 21. Databases – database Instance activity
- 22. ID= instance id %CPU=host cpu busy %(busy/busy+idle). (red if gt; 90%) LOAD=current os load. (red if gt; 2*#cpu) %DCU=db cpu otusef as %host cpu. (red if gt; 99%) AAS=Average Active Sessions ASC=active Sessions on CPU ASI=active Sessions waiting on user I/O
- 23. ASW=Active Sessions Waiting MBPS=i/o megabytes per second (throughput) IOPS=i/o requests per second ASP=active parallel sessions UST=user Sessions Total (Active/Inactive) AST=Active user Sessions Total (ASC+ASI+ASW)
- 24. ASW=Active Sessions Waiting PHYR=physical reads per sec LOGR=logical reads per sec IORL=avg synchronous single-block read latency (red if gt; 20ms) ASP=active parallel sessions PHYR=physical writes per sec AST=Active user Sessions Total (ASC+ASI+ASW)
- 25. %FR=shared pool free % UTPS=user transactions per sec UCPS=user calls per sec SSRT=sql service response time PGA==total pga allocated PHYW=physic al writes per sec TEMP=temp space used
- 26. DB Events – AWR like top 5 events
- 27. Top 5 Timed Events o Cluster-wide, non-idle o Ordered by wait time desc wait event name total waits total wait time in seconds average wait time in milliseconds percent of wait time (all events) name of the wait class
- 29. SERVER (dedicated, shared, etc.) Pga used for the session Sql_id OR Blocker (instance:sid) Operation eg, select, update create index session elapsed time ACTive|INActive|KILled Process state
- 30. wait_class for the named event event wait time session wait event name
- 31. Extended keys
- 32. Explain Plan • Hit the “x” and enter the sql_id • Will display the actual plan
- 33. Space check • Hit the “t” for non-ASM • Hit the “a” for ASM and diskgroups ENC=encrypted
- 34. Asm Diskgroup info Number of bytes in hot region Number of bytes in the cold region State of disk group relative to the instance Redundancy type: external ,normal, high Number of disk in the DG offline
- 36. DataGuard
- 37. Connecting to CDB 3 pdb (not including the cdb)
- 39. Demo
- 40. Useful info • MOS note: 1500864.1 – Installation – Download – manual
- 41. • Abbreviations: – [N/B]: count(N)/ Byte(B) - (k)illo, (M)ega, (G)iga, (T)erra, [PEZY] – [T] : Time - (u)micro, (m)illi, (s)econd, (h)our, (d)ay, (y)ear – [m/s]: stats interval size, (m) 1 minute, (s) 15s, else, Real Time • Limitations – Run on oracle client 11.2 and 12cR1 – Statistic_level=Typical
- 42. ORATOP Do less ….get more … Gadi Chen Co-Founder –TopExperts www.topexperts.co.il Gadi.chen@topexperts.co.il +972-54-6804475