Data Collector Variables

Table 1. Data Collector Variables
Variable	Description
IP Address of the Virtual Unit	Virtual IP address, for information only. Address cannot be changed as it is defined when the virtual unit is created.
Use Windows Authentication for Database Connections	Specify whether Windows authentication should be used for database connections. The selection is on by default, and we recommend using it. With Windows authentication, you can leave database password fields empty. If you de select the option, SQL logon is used, and you must enter database user name and password for each database connection, and they are saved in registry and log files as plain text.
Use multi-subnet failover	Specify whether multi-subnet failover should be used for a connection. Enabling it allows faster reconnection after a failover of an Always On Failover Cluster Instance.
Log File Directory of the Virtual Unit	Software running in the virtual unit uses this directory for their log files
Configuration Database Server Address or Name	By default, the value defined in database installation is used automatically.
Configuration Database Name	By default, the value defined in database installation is used automatically.
Configuration Database User Name	By default, the value defined in database installation is used automatically.
Configuration Database Password	By default, the value defined in database installation is used automatically.
Port for Event Collection	The TCP/TLS port number where Data Collector listens for event sending clients. The default value is 21009.
Event Buffer Size	Size of the memory buffer in bytes to receive events from a single client. The default value is 1000000.
Transaction File Buffer Directory	Data Collector saves transaction file buffers into this directory, the default value is $VU_HOME$\temp.
Transaction Buffer Size	Size of a single file buffer in bytes to store transaction data per database destination. The default value is 1000000.
Batch Size for Events	Maximum number of events that Data Collector processes in one round (See also Maximum Event Processing Period). The default value is 100.
Maximum Event Processing Period	Maximum processing period in milliseconds for events in one round (See also Batch Size). The default value is 1000.
Inactivation Period	Time in seconds to wait for client connections to be closed before Data Collector starts shutdown procedure. The default value is 40.
Shutdown Period	Time for graceful shutdown in milliseconds. The default value is 5000.
Time between Heart Beat Messages, in Seconds	Specifies how frequently Data Collector sends heart beat messages to the clients. The default value is 5.
Internal Server Certificate in Use	Internal Server Certificate can be used to secure server-server connection.
Internal Server Certificate Common Name	Internal Server Common Name part of the Certificate Subject, Issued To.
Internal Server Certificate Issuer	Optional Internal Server Certificate issuer name, Issued By.
Internal Server Certificate Store	Internal Server Certificate store location.

IP Address of the Virtual Unit

Virtual IP address, for information only. Address cannot be changed as it is defined when the virtual unit is created.

Use Windows Authentication for Database Connections

Specify whether Windows authentication should be used for database connections. The selection is on by default, and we recommend using it. With Windows authentication, you can leave database password fields empty. If you de select the option, SQL logon is used, and you must enter database user name and password for each database connection, and they are saved in registry and log files as plain text.

Use multi-subnet failover

Specify whether multi-subnet failover should be used for a connection. Enabling it allows faster reconnection after a failover of an Always On Failover Cluster Instance.

Log File Directory of the Virtual Unit

Software running in the virtual unit uses this directory for their log files

Configuration Database Server Address or Name

By default, the value defined in database installation is used automatically.

Configuration Database Name

By default, the value defined in database installation is used automatically.

Configuration Database User Name

By default, the value defined in database installation is used automatically.

Configuration Database Password

By default, the value defined in database installation is used automatically.

Port for Event Collection

The TCP/TLS port number where Data Collector listens for event sending clients. The default value is 21009.

Event Buffer Size

Size of the memory buffer in bytes to receive events from a single client. The default value is 1000000.

Transaction File Buffer Directory

Data Collector saves transaction file buffers into this directory, the default value is $VU_HOME$\temp.

Transaction Buffer Size

Size of a single file buffer in bytes to store transaction data per database destination. The default value is 1000000.

Batch Size for Events

Maximum number of events that Data Collector processes in one round (See also Maximum Event Processing Period). The default value is 100.

Maximum Event Processing Period

Maximum processing period in milliseconds for events in one round (See also Batch Size). The default value is 1000.

Inactivation Period

Time in seconds to wait for client connections to be closed before Data Collector starts shutdown procedure. The default value is 40.

Shutdown Period

Time for graceful shutdown in milliseconds. The default value is 5000.

Time between Heart Beat Messages, in Seconds

Specifies how frequently Data Collector sends heart beat messages to the clients. The default value is 5.

Internal Server Certificate in Use

Internal Server Certificate can be used to secure server-server connection.

Internal Server Certificate Common Name

Internal Server Common Name part of the Certificate Subject, Issued To.

Internal Server Certificate Issuer

Optional Internal Server Certificate issuer name, Issued By.

Internal Server Certificate Store

Internal Server Certificate store location.