• Article

sp_change_agent_parameter (Transact-SQL)

Changes a parameter of a replication agent profile stored in the MSagent_parameters system table. This stored procedure is executed at the Distributor where the agent is running, on any database.

Topic link iconTransact-SQL Syntax Conventions

Syntax

sp_change_agent_parameter [ @profile_id= ] profile_id, [ @parameter_name= ] 'parameter_name', [ @parameter_value= ] 'parameter_value'

Arguments

  • [ @profile_id=] profile_id,
    Is the ID of the profile. profile_id is int, with no default.

  • [ @parameter_name=] 'parameter_name'
    Is the name of the parameter. parameter_name is sysname, with no default. For system profiles, the parameters that can be changed depend on the type of agent. To find out what type of agent this profile_id represents, locate the profile_id column in the Msagent_profiles table, and note the agent_type value.

    Note

    If a parameter is supported for a given agent_type, but has not been defined in the agent profile, an error is returned. To add a parameter to an agent profile you must execute sp_add_agent_parameter.

    For a Snapshot Agent (agent_type=1), if defined in the profile, the following properties can be changed:

    • 70Subscribers

    • BcpBatchSize

    • HistoryVerboseLevel

    • LoginTimeout

    • MaxBcpThreads

    • MaxNetworkOptimization

    • Output

    • OutputVerboseLevel

    • PacketSize

    • QueryTimeout

    • StartQueueTimeout

    • UsePerArticleContentsView

    For a Log Reader Agent (agent_type=2), if defined in the profile, the following properties can be changed:

    • HistoryVerboseLevel

    • LoginTimeout

    • MessageInterval

    • Output

    • OutputVerboseLevel

    • PacketSize

    • PollingInterval

    • QueryTimeout

    • ReadBatchSize

    • ReadBatchThreshold

    For a Distribution Agent (agent_type=3), if defined in the profile, the following properties can be changed:

    • BcpBatchSize

    • CommitBatchSize

    • CommitBatchThreshold

    • FileTransferType

    • HistoryVerboseLevel

    • KeepAliveMessageInterval

    • LoginTimeout

    • MaxBcpThreads

    • MaxDeliveredTransactions

    • MessageInterval

    • Output

    • OutputVerboseLevel

    • PacketSize

    • PollingInterval

    • QueryTimeout

    • QuotedIdentifier

    • SkipErrors

    • TransactionsPerHistory

    For a Merge Agent (agent_type=4), if defined in the profile, the following properties can be changed:

    • AltSnapshotFolder

    • BcpBatchSize

    • ChangesPerHistory

    • DestThreads

    • DownloadGenerationsPerBatch

    • DownloadReadChangesPerBatch

    • DownloadWriteChangesPerBatch

    • DynamicSnapshotLocation

    • ExchangeType

    • FastRowCount

    • FileTransferType

    • GenerationChangeThreshold

    • HistoryVerboseLevel

    • InputMessageFile

    • InteractiveResolution

    • InterruptOnMessagePattern

    • KeepAliveMessageInterval

    • LoginTimeout

    • MaxBcpThreads

    • MaxDownloadChanges

    • MaxUploadChanges

    • MetadataRetentionCleanup

    • NumDeadlockRetries

    • Output

    • OutputMessageFile

    • OutputVerboseLevel

    • PacketSize

    • ParallelUploadDownload

    • PauseOnMessagePattern

    • PauseTime

    • PollingInterval

    • ProcessMessagesAtPublisher

    • ProcessMessagesAtSubscriber

    • QueryTimeout

    • QueueSizeMultiplier

    • SrcThreads

    • StartQueueTimeout

    • SyncToAlternate

    • UploadGenerationsPerBatch

    • UploadReadChangesPerBatch

    • UploadWriteChangesPerBatch

    • UseInprocLoader

    • Validate

    • ValidateInterval

    For a Queue Reader Agent (agent_type=9), if defined in the profile, the following properties can be changed:

    • HistoryVerboseLevel

    • LoginTimeout

    • Output

    • OutputVerboseLevel

    • PollingInterval

    • QueryTimeout

    • ResolverState

    • SQLQueueMode

    To see what parameters have been defined for a given profile, run sp_help_agent_profile and note the profile_name associated with the profile_id. With the appropriate profile_id, next run sp_help_agent_parameters using that profile_id to see the parameters associated with the profile. Parameters can be added to a profile by executing sp_add_agent_parameter.

  • [ @parameter_value=] 'parameter_value'
    Is the new value of the parameter. parameter_value is nvarchar(255), with no default.

Return Code Values

0 (success) or 1 (failure)

Remarks

sp_change_agent_parameter is used in all types of replication.

Permissions

Only members of the sysadmin fixed server role can execute sp_change_agent_parameter.