想知道SharePoint 2007中的每个Timer Job都是做什么的?

WSS3.0中默认的timer jobs.

Timer job title	Description	Schedule type
CEIP Data Collection	Gathers farm data for the Customer Experience Improvement Program.	Daily
Change Log	Documents changes to sites and pages in the Web application since the last time that the timer job was run.	Daily
Database Statistics	Updates SQL Server query optimization statistics for content databases. This job was updated significantly in Windows SharePoint Services 3.0 with Service Pack 2 (SP2) to also rebuild database indexes. The job performs the following tasks: · If you have not installed Windows SharePoint Services 3.0 with SP2, the job updates the query optimization statistics by performing a full scan of key tables every time that it runs, which can be resource-intensive. · If you have installed Windows SharePoint Services 3.0 with SP2: · The job updates the query optimization statistics by sampling key tables every time that it runs, instead of performing a full scan. · If you are running Microsoft SQL Server 2005 or Microsoft SQL Server 2008, the job rebuilds all indexes in the content databases every time that it runs. · If you are running an Enterprise edition of SQL Server 2005 or SQL Server 2008, the job rebuilds most indexes online. · If you are running a Standard edition of SQL Server 2005 or SQL Server 2008, the job rebuilds the indexes offline. · If you are running Microsoft SQL Server 2000, the job does not rebuild any indexes.	Daily, between 22:00:00 and 05:00:00
Dead Site Delete	When auto site cleanup is enabled, it deletes sites that have not been used in a certain period of time.	Daily
Disk Quota Warning	Looks for sites that have exceeded the storage quota.	Daily
Immediate Alerts	Sends out immediate and scheduled alerts.	Minutes
Recycle Bin	Looks for content in the Recycle Bins and moves it to the next stage or deletes it.	Daily
Usage Analysis	Processes the logs and aggregates usage data for each site.	Daily
Workflow	Processes workflow events that are in the scheduled items table, such as delays.	Minutes
Workflow Auto Cleanup	Deletes tasks and instances in the workflow instance table for workflows that have been marked completed more than n days in the past, where n is specified in the workflow association. Crawls through tasks and the workflow instance table.	Daily
Workflow Failover	Processes events for workflows that have failed and are marked to be retried.	Minutes
Site Collection: Delete	Added in the April Cumulative Update to perform gradual deletion of site collections. When an operation uses gradual deletion, a site collection is immediately marked as deleted, which prevents any further access to its content. The data in the deleted site collection is then deleted gradually over time by this timer job instead of all at once, which reduces its effect on Windows SharePoint Services 3.0 and SQL Server performance. Gradual deletion is available in the stsadm -o deletesite and stsadm -o mergecontentdbs operations.	Daily

MOSS中默认的timer job

Timer job title	Description	Schedule type
Application Server Administration Service Timer Job	Manages shared service instances that may perform highly privileged operations. Requires that the SharePoint Administration service is running. The Search service instance is managed by this job on deployments other than stand-alone server deployments.	Minutes
Application Server Timer Job	Manages shared service instances that do not perform highly privileged operations. The Search service instance is managed by this job on stand-alone server deployments.	Minutes
Bulk Workflow Task Processing	Processes bulk workflow task completion.	Daily
CEIP Data Collection	Gathers farm data for the Customer Experience Improvement Program.	Daily
Change Log	Documents changes to sites and pages in a Web application since the last time that the timer job was run.	Daily
Child Farm Content Source Discovery	Created on every farm but runs only on farms designated as child farms. Discovers Web applications on child farms, and registers them with the Shared Services Provider (SSP) database on the parent farm.	15 minutes
Database Statistics	Updates SQL Server query optimization statistics for content databases. This job was updated significantly in Microsoft Office SharePoint Server 2007 with Service Pack 2 (SP2) to also rebuild database indexes. The job performs the following tasks: If you have not installed Office SharePoint Server 2007 with SP2, the job updates the query optimization statistics by performing a full scan of key tables every time that it runs, which can be resource-intensive. If you have installed Office SharePoint Server 2007 with SP2: The job updates the query optimization statistics by sampling key tables every time that it runs, instead of performing a full scan. If you are running SQL Server 2005 or SQL Server 2008, the job rebuilds all indexes in the content databases every time that it runs. If you are running an Enterprise edition of SQL Server 2005 or SQL Server 2008, the job rebuilds most indexes online. If you are running a Standard edition of SQL Server 2005 or SQL Server 2008, the job rebuilds the indexes offline. If you are running SQL Server 2000, the job does not rebuild any indexes.	Weekly
Dead Site Delete	When auto site cleanup is enabled, sites that have not been used in a certain period of time are deleted.	Daily
Disk Quota Warning	Looks for sites that have exceeded the storage quota.	Daily
Document Conversions	Schedules and begins the document conversions.	Minutes
Expiration Policy	Enumerates list items and looks for those with an expiration date that has already occurred. For those items, runs disposition processing. Disposition processing most often results in deleting items, but it can perform other actions, such as processing disposition workflows.	Daily
Hold Processing and Reporting	Generates a hold report by enumerating items in a hold and doing an update on them to remove them from hold, as appropriate.	Daily
Immediate Alerts	Sends out immediate and scheduled alerts.	Minutes
Indexing Schedule Manager on SQL Server	Starts scheduled crawls.	Minutes
Information Management Policy	Loops through all the lists in the site collections in a Web application and collects policy and usage data.	Daily
Licensing Synchronizer Job	Synchronizes trial expiration time licensing information to the configuration database.	Hourly
My Site Cleanup Job	When a user is deleted, starts a workflow on that user’s My Site. The default behavior is to send an e-mail message to the manager with a link to the deleted user’s site. The e-mail message contains a request to the manager to move any documents or data that the manager wants to preserve, because the site might be deleted in the future.	Hourly
Office SharePoint Server CEIP Data Collection	Gathers farm data for the Customer Experience Improvement Program.	Daily
Office SharePoint Usage Analytics Log Import	Imports the usage logs for each site.	Daily
Office SharePoint Usage Analytics Processing	Processes the logs and aggregates usage data for each site.	Minutes
Profile Synchronization	Synchronizes user information in content databases from user profile data.	Hourly
Quick Profile Synchronization	Synchronizes user information for newly added users in content databases from user profile data.	Minutes
Records Center Processing	Checks for records that have been added to a Records Center DropOffLibrary and routes files that have been saved there.	Daily
Recycle Bin	Looks for content in the Recycle Bins and moves it to the next stage or deletes it.	Daily
Scheduled Approval	Looks for content that is scheduled for approval and moves it to the next stage in the process.	Minutes
Scheduled Page Review	Looks for pages that are scheduled for review and moves them to the next stage in the process.	Daily
Scheduled Unpublish	Looks for content that is scheduled to be unpublished and removes it.	Minutes
Search and Process	Processes a search result that is scoped to a site collection and puts search results on hold.	Daily
Shared Services Provider Synchronizing Job	Automatically configures an SSP. If the status of the SSP is Provisioning, it changes the status to Online. If the status is Online, then it synchronizes.	Minutes
Shared Services Timer Job	Schedules jobs that are registered by SSPs. The job runs in the security context of the SSP Web service account.	Minutes
SharePoint Services Search Refresh	Validates the configuration of the WSS Search service.	Minutes
SharePoint Worker Process Group Update	Updates the WSS_ADMIN_WPG group.	One-time
SKU Type Synchronization Job	Synchronizes version-licensing information (Standard or Enterprise) to the configuration database.	Hourly
Synchronization Scheduler	Applies changes in configured schedules to the Profile Synchronization and Quick Profile Synchronization jobs.	Minutes
Usage Analysis	Processes the logs and aggregates usage data for each site.	Daily
Variations Propagate Page Job Definition	Creates or updates peer pages of the source page that has been approved or published in all target labels. The resulting peer pages are in an unpublished state.	Minutes
Variations Propagate Site Job Definition	Creates peer sites of the source site that has been created in all target labels.	Minutes
Windows SharePoint Services Watson Policy Update	Sets or removes a registry key to enable automatic Watson uploads.	One-time
Workflow	Processes workflow events that are in the scheduled items table, such as delays.	Minutes
Workflow Auto Cleanup	Deletes tasks and instances in the workflow instance table for workflows that have been marked completed more than n days in the past, where n is specified in the workflow association. Crawls through tasks and the workflow instance table.	Daily
Workflow Failover	Processes events for workflows that have failed and are marked to be retried	Minutes
Site Collection: Delete	Added in the April Cumulative Update to perform gradual deletion of site collections. When an operation uses gradual deletion, a site collection is immediately marked as deleted, which prevents any further access to its content. The data in the deleted site collection is then deleted gradually over time by this timer job instead of all at once, which reduces its effect on Office SharePoint Server 2007 and SQL Server performance. Gradual deletion is available in the stsadm -o deletesite and stsadm -o mergecontentdbs operations.	Daily

默认的SSP Timer Job

Timer job title	Description
User Profile Full Import Job	Imports all data in user profiles.
User Profile Incremental Import Job	Imports only the user profiles that were added after the last import.
User Profile Change Job	Changes the user profile. User rights can be migrated from one user to another user. This timer job is used when a user has to be migrated, but the previous user profile remains in the Active Directory directory service.
User Profile Change Cleanup Job	Migrates user rights from one user to another user, and migrates the user rights and cleans up that user from Active Directory. This is mainly used when the name of a user is changed in Active Directory. The older user name is replaced by new user name and the older one is removed from Active Directory.
Audience Compilation Job	Checks property values in user profile and membership in distribution lists, security groups, and reporting structures to see whether they match the audience rule created. Users that match the audience rules for an audience are included in that audience and the received content is targeted to that audience. A compilation schedule can be set.
Distribution List Import Job	Imports the distribution list so that it can be used among different users.

Mark Arend给出的表格.

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MOSS中OOB的timer job以及一些说明:

Title	Web Application	Schedule Type	Description
Application Server Administration Service Timer Job	N/A	Minutes	Provisions shared services which require the SPAdmin service
Application Server Timer Job	N/A	Minutes	Provisions shared services which do not require the SPAdmin service
Bulk workflow task processing entry for each web app in farm	Web.app.url	Daily
CEIP Data Collection	N/A	Daily	Submits information to the Microsoft Customer Experience Improvement Program Web site
Change Log entry for each web app in farm	Web.app.url	Daily	Records changes made to each server in your farm
Child farm content source discovery	N/A	Minutes	Discovers content sources used for search in child farms
Config Refresh	N/A		Updates the cache from WFEs to the configuration database
Database Statistics entry for each web app in farm	Web.app.url	Weekly	Controls the initial deployment UI based on current farm configuration state
Dead Site Delete entry for each web app in farm	Web.app.url	Disabled
Disk Quota Warning entry for each web app in farm	Web.app.url	Daily	Checks if sites exceed quota limits and sends email alerts to owners if true
E-Mail Enabled Lists			Checks the SMTP drop folder periodically, picks any emails received, and drops the emails in discussion boards and other lists
Expiration policy	N/A	Daily	Checks for expired content
Hold Processing and Reporting	N/A	Daily	A feature of Document Life Cycle that processes documents currently in Hold state
Immediate Alerts entry for each web app in farm	Web.app.url	Minutes	Sends email alerts to users
Indexing Schedule Manager on LocalAD	N/A	Minutes	Schedules the indexing process on the server
Information management policy	N/A	Daily	Ensures the information policy features are available to all site Collections
Licensing Synchronizer Job	N/A	Hourly	Synchronizes timebomb value from registry key to configuration Database
My Site Cleanup Job	N/A	Hourly	Removes unused personal sites
Office SharePoint Server CEIP Data Collection	N/A	Daily	Collects static Software Quality Management data for Microsoft’s Integrated Solution Selling business
Office SharePoint Usage Analytics Log Import	N/A	Daily	Centralizes all of the usage logs from across the farm into a Database
Office SharePoint Usage Analytics Processing	N/A	Minutes	Normalizes data and prepares it for reporting
Profile Synchronization entry for each web app in farm	Web.app.url	Hourly
Quick Profile Synchronization entry for each web app in farm	Web.app.url	Minutes
Records Center Processing	N/A	Daily	Processes documents submitted by members of the Record Repository Web Service Submitters for Records group to a records repository
Recycle Bin entry for each web app in farm	Web.app.url	Daily	Empties site content deleted more than 30 days ago
Scheduled Approval	Web.app.url	Minutes	Approves content periodically
Scheduled Page Review	Web.app.url	Daily	Records if content is reviewed as per the schedule of the workflow
Scheduled Unpublish	Web.app.url	Minutes	Removes published content after a specified time is elapsed
Search and Process entry for each web app in farm	Web.app.url	Daily	A Document Life Cycle feature that looks for specific documents and list items and moves them to a Hold state
Shared Services Provider Synchronizing Job	N/A	Minutes
Shared Services Timer Job	N/A	Minutes
SharePoint Services Search Refresh	N/A	Minutes	Creates or removes content sources when Web applications are associated or disassociated from shared services
Sku Type Synchronization Job	N/A	Hourly	Records the various SKUs installed on servers in your farm
Synchronization Scheduler	N/A	Minutes	Runs a scheduled job for synchronizing cache on all WFEs in the Farm
Usage Analysis entry for each web app in farm	Web.app.url	Daily	Collects data from IIS logs about site usage statistics
Variations Propagate Page Job Definition	Web.app.url	Minutes
Variations Propagate Site Job Definition	Web.app.url	Minutes
Virus Scanner Update	N/A	Minutes
Windows SharePoint Services Watson Upload			Uploads Watson data to the Microsoft Customer Experience Improvement Program Web site
Workflow entry for each web app in farm	Web.app.url	Minutes	Processes workflows and workitems when a certain scheduled time is reached
Workflow Auto Cleanup entry for each web app in farm	Web.app.url	Daily	Deletes workflow data generated by a workflow template after a specified number of days after the workflow completes
Workflow Failover entry for each web app in farm	Web.app.url	Minutes	Removes any stale locks on workflow jobs that have expired passed a certain time

下表列出了MOSS中的timer job的类型以及相应的命名空间, 看反汇编代码时比较有帮助.

这些类都是继承自Microsoft.SharePoint.Administration.SPJobDefinition类的.

Scope	Namespace	Class	Timer Job Title
internal sealed	Microsoft .Office .Server .Administration	AlternateUrlSynchronizerJob
internal sealed	Microsoft .Office .Server .Administration	ApplicationServerJob
internal sealed	Microsoft .Office .Server .Administration	ConfigurationCheckerJob
private	Microsoft .Office .Server .Administration	DiagnosticsService+DiagnosticsServiceTimerJobDefinition
internal	Microsoft .Office .Server .Administration	JobScheduler
internal sealed	Microsoft .Office .Server .Administration	LicensingConversionJob
internal sealed	Microsoft .Office .Server .Administration	LicensingJob
internal sealed	Microsoft .Office .Server .Administration	SharedResourceProviderJob
internal sealed	Microsoft .Office .Server .Diagnostics	StaticSqmDataCollectionJob
internal sealed	Microsoft .Office .Server .Diagnostics	StaticSqmDataCollectionJob
public	Microsoft .Office .Server .UserProfiles	MySiteCleanupJob	My Site Cleanup Job
public	Microsoft .Office .Server .UserProfiles	WSSProfileSynch	Profile Synchronization
public	Microsoft .Office .Server .UserProfiles	WSSSweepSynch
public	Microsoft .Office .Server .UserProfiles	WSSSynchScheduler
internal sealed	Microsoft .SharePoint .Administration .Backup	SPBackupRestoreJobDefinition
internal sealed	Microsoft .SharePoint .Administration	SPAdminAppPoolCredentialDeploymentJobDefinition
public	Microsoft .SharePoint .Administration	SPAdministrationServiceJobDefinition - ApplicationServerAdministrationServiceJob - IisResetJobDefinition - SPAntivirusJubDefinition - SPIisWebsiteUnprovisioningJobDefinition - SPRollbackPairingJobDefinition - SPServiceInstanceJobDefinition - SPSmtpSettingsPullJobDefinition - SPSmtpSettingsPushJobDefinition - SPSolutionDeploymentJobDefinition - SPUpdateWorkerProcessGroup - SPWatsonHealessOptInJobDefinition - SPWatsonTriggerJobDefinition - SPWebApplicationProvisioningJobDefinition
internal	Microsoft .SharePoint .Administration	SPConfigurationRefreshJobDefinition
internal sealed	Microsoft .SharePoint .Administration	SPContentAppPoolCredentialDeploymentJobDefinition
internal	Microsoft .SharePoint .Administration	SPDatabaseStatisticsJobDefinition
private	Microsoft .SharePoint .Administration	SPDiagnosticsService+DiagnosticsServiceTimerJobDefinition
internal	Microsoft .SharePoint .Administration	SPIncomingEmailJobDefinition
internal abstract	Microsoft .SharePoint .Administration	SPNativeJobDefinition - SPNativeDatabaseJobDefinition -- SPChangeLogJobDefinition -- SPDeadSiteDeleteJobDefinition -- SPDiskQuotaWarningJobDefinition -- SPImmediateAlertsJobDefinition -- SPRecycleBinCleanupJobDefinition - SPNativeServerJobDefinition -- SPUsageAnalysisJobDefinition
internal	Microsoft .SharePoint .Administration	SPPendingDistributionGroupJobDefinition
internal	Microsoft .SharePoint .Administration	SPRegistryUpdateJobDefinition
internal sealed	Microsoft .SharePoint .Administration	SPRemoteFarmCacheRefreshJobDefinition
internal	Microsoft .SharePoint .Administration	SPSqmTimerJobDefinition
public sealed	Microsoft .SharePoint .Administration	SPUpgradeJobDefinition
internal sealed	Microsoft .SharePoint .Administration	SPWebConfigJobDefinition
internal sealed	Microsoft .SharePoint .Administration	SPWindowsServiceCredentialDeploymentJobDefinition
public	Microsoft .SharePoint .Administration	SPWorkItemJobDefinition - SPWorkflowAutoCleanJobDefinition - SPWorkflowFailOverJobDefinition - SPWorkflowJobDefinition - SPWssDocConversionsWIJD - PropogateVariationsPageJobDefinition - SchedulingJobDefinition -- ApprovalJobDefinition -- UnpublishJobDefinition - SpawnSitesJobDefinition
internal	Microsoft .SharePoint .Help	SPHelpHcInstallJobDefinition
public sealed	Microsoft .SharePoint .Portal .Administration	FeaturePushdownJob
internal sealed	Microsoft .SharePoint .Portal .Administration	OemConversionJob
public sealed	Microsoft .SharePoint .Portal .Administration	SkuTypeSyncJob
internal sealed	Microsoft .SharePoint .Portal .Administration	SkuUpgradeJob
public	Microsoft .SharePoint .Portal .Analytics	LogImportJobDefinition
public	Microsoft .SharePoint .Portal .Analytics	UsageProcessingJobDefinition
public sealed	Microsoft .SharePoint .Portal .SiteDirectory	LinksCheckerJob
internal sealed	Microsoft .SharePoint .Publishing .Administration	ContentDeploymentJobDefinition
internal sealed	Microsoft .SharePoint .Publishing .Administration	MigrationJobDefinition
public sealed	Microsoft .SharePoint .Publishing .Internal	NotificationJobDefinition

来源:

List of MOSS Timer Jobs

http://blogs.msdn.com/markarend/archive/2008/09/06/list-of-moss-timer-jobs.aspx

SharePoint Timer job reference (Office SharePoint Server)

http://technet.microsoft.com/en-us/library/cc678870.aspx