SPSNJ 2013 Building Solutions using SharePoint TimerJobs
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SPSNJ 2013 Building Solutions using SharePoint TimerJobs
- 1. #SPSNJ @PGBhoyar Presented By: Prashant G Bhoyar Building Solutions using SharePoint Timer Jobs 05 October 2013
- 2. #SPSNJ @PGBhoyar Who am I? • SharePoint Consultant at Portal Solutions • Product - AuthentiMate • Services – We love SharePoint .. • Guy with multiple hats • University of Maryland College Park Alumni • Recipient of Antarctic Service Medal
- 3. #SPSNJ @PGBhoyar What Will We Cover Today? • What are Timer Jobs? • Common business scenarios for Timer Jobs • Timer Job architecture • Developing Timer Jobs • Various approaches to registering Timer Jobs • How to Test/Debug Timer Jobs • Common issues and fixes for Timer Jobs • Timer Jobs best practices • When not to use them
- 5. #SPSNJ @PGBhoyar What are Timer Jobs? • Perform much of backend work to maintain farm • Run on one or more server at scheduled time • Run periodically and independent of the users • Offload long running processes from web front end server • Run code under higher privileges
- 6. #SPSNJ @PGBhoyar What are Timer Jobs? • To Summarize,
- 7. #SPSNJ @PGBhoyar Examples of Timer Jobs in SharePoint • Clean up Old Sites • User Profile Sync • Solution Deployment • Search Index • Various other Automations/Long Running operations
- 9. #SPSNJ @PGBhoyar LessComplexity Timer Jobs Vs Scheduled Tasks Scheduled Tasks Timer Jobs -Create Console App -Schedule it using Windows Tasks Scheduler -Easy to setup -Create Custom Timer Job -Register in SharePoint -No reporting available -Need to implement custom logging -Can track status, history, change the schedule, start/stop using Central Admin. -Need direct access to SharePoint Servers (Not easy to get) -Request special account to run the Scheduled Tasks -Timer Job runs under SharePoint Timer Job Account -Load Balancing is not available -Load balancing is available -Console Application -Full Access to SharePoint API (SPSite, SPWebApplication)
- 10. #SPSNJ @PGBhoyar Timer Jobs in SharePoint Farm • Central Admin -> Monitoring ->Review Job Definitions
- 11. #SPSNJ @PGBhoyar Timer Jobs in SharePoint Farm • Windows SharePoint Services Timer Service(SPTimerV4) run Timer Job • Service must be enabled and running in each server • Start –Administrative Tools -> Services • The timer job executes under OWSTIMER.exe
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- 13. #SPSNJ @PGBhoyar Create Custom Timer Jobs • Visual Studio -> Empty SharePoint Project • Deploy as Farm Solution
- 14. #SPSNJ @PGBhoyar LessComplexity Architecture of Timer Jobs • Microsoft.SharePoint.Administration.SPJobDefinition : Timer Jobs are created and executed by using this class • Three Constructors • Default (No Parameters): • For internal use • Others : • Job Name • Job Lock Type • Web Application or Service
- 15. #SPSNJ @PGBhoyar LessComplexity Architecture of Timer Jobs • Parameters of SPJobDefinition Constructor Name Description Name Name of the Job Service An instance of the SPService class that owns this job WebApplication Parent WebApplication Server An instance of the SPServer class associated with this job lockType An SPJobLockType value that indicates the circumstances under which multiple instances of the job can be run simultaneously. http://msdn.microsoft.com/en-us/library/hh528519(v=office.14).aspx
- 16. #SPSNJ @PGBhoyar LessComplexity Architecture of Timer Jobs • SPJobLockType values Value Description None No locks. The timer job runs on every machine on which the parent service is provisioned. ContentDatabase Job runs for each content database associated with the job's web application. Job Only one server can run the job at a time.
- 17. #SPSNJ @PGBhoyar LessComplexity Architecture of Timer Jobs • Override the Execute method of the SPJobDefinition class and replace the code in that method with the code that your job requires. • The targetInstanceId maps to the Guid of the Current content database while the timer job is running
- 18. #SPSNJ @PGBhoyar
- 19. #SPSNJ @PGBhoyar Typical Timer Job Life Cycle
- 20. #SPSNJ @PGBhoyar
- 21. #SPSNJ @PGBhoyar LessComplexity Two options: • Declarative by using SharePoint Feature • Pros: Easy to deploy and maintain • Cons: Difficult to develop • Programmatically using Server side object model • Pros : Flexible, Easier to Develop • Cons : Difficult to deploy and maintain Deployment and Registration of Custom Timer Jobs
- 22. #SPSNJ @PGBhoyar LessComplexity Option 01 : Declarative by using SharePoint Feature • Add Feature • Add code to register Timer Job in the FeatureActivated • Add code to delete Timer Job in the FeatureDeActivating Deployment and Registration of Custom Timer Jobs
- 23. #SPSNJ @PGBhoyar LessComplexity Option 02 : Programmatically using Server side object model • Create Console Application/Power Shell Script • Add code to register Timer Job • Add code to delete Timer Job Deployment and Registration of Custom Timer Jobs
- 24. #SPSNJ @PGBhoyar
- 25. #SPSNJ @PGBhoyar LessComplexity • Attach the debugger to “OWSTIMER.EXE” • Debug -> Attach to Process Debug Custom Timer Jobs
- 26. #SPSNJ @PGBhoyar LessComplexity • Check the History To see when the timer job ran last time Debug Custom Timer Jobs
- 27. #SPSNJ @PGBhoyar
- 28. #SPSNJ @PGBhoyar LessComplexity • Change the Schedule using Central Admin • Change the Schedule using PowerShell Commands • $timerJob = Get-SPTimerJob -Identity "SPSDC2013 TimerJob01" • Start-SPTimerJob $timerJob • Easiest : Write Console Application to debug business logic Expedite Debugging
- 30. #SPSNJ @PGBhoyar LessComplexity Developing Custom Timer Jobs • Set up the solution • Add a class and Inherit from SPJobDefinition • Override Execute Method • Register Timer Jobs
- 31. #SPSNJ @PGBhoyar
- 32. #SPSNJ @PGBhoyar Common Issues and Fixes • Redeployment : IISRESET and ReStart Timer Services • Debugging takes lot of time : • Use Console Application to debug the business login during development • Always implement Exception Handling • SPContext is NOT AVAILABLE. Never use it in Timer Jobs. • If you use SiteCollection Feature to register timer job, activate/deactivate using PowerShell • If SPJobLockType is set to ContentDatabase, timer job will get fired multiple times depending on number of Content Databases
- 33. #SPSNJ @PGBhoyar Best Practices • Always implement Exception Handling • SPContext is NOT AVAILABLE. Never use it in Timer Jobs. • In production restart the Timer Services using command • “Get-SPTimerJob job-timer-recycle | Start-SPTimerJob” • Use Console Application to debug the business login during development
- 34. #SPSNJ @PGBhoyar When not to use Timer Jobs? • OOTB Options are available • Content/Data needs to be updated synchronously • Simple data processing that can be easily handled with Event Receivers
- 37. #SPSNJ @PGBhoyar Princeton SharePoint user group • Different SharePoint discussions each month on various topics. Announced on meetup.com • Meets 4th Wednesday of every month • 6pm – 8pm • Infragistics Office • 2 Commerce Drive, Cranbury, NJ • http://www.meetup.com/prin cetonSUG • http://www.princetonsug.com
- 38. #SPSNJ @PGBhoyar Thank You Event Sponsors • Platinum & Gold sponsors have tables here in the Fireside Lounge • Please visit them and inquire about their products & services • To be eligible for prizes make sure your bingo card is signed by all Platinum/Gold
- 39. #SPSNJ @PGBhoyar Questions? Feedback? Contact me: Twitter: @PGBhoyar Blog: http://pgbhoyar.wordpress.com (limited contents) Email: pgbhoyar@gmail.com Thank You Organizers, Sponsors and You for Making this Possible.