dbDatabase::OpenParameters Struct Reference

#include <database.h>

List of all members.

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Detailed Description

Structure to specify database open parameters.

Public Member Functions
	OpenParameters ()
Public Attributes
char const *	databaseName
	Database name.
char const *	databaseFilePath
	Database file path.
time_t	transactionCommitDelay
	Transaction commit delay.
time_t	waitLockTimeoutMsec
	Deadlock detection timeout (after expiration of this timeout a lokc is revoked).
dbAccessType	accessType
	Database access type.
size_t	initSize
	Initial database file size.
size_t	extensionQuantum
	Quantum for extending memory allocation bitmap.
size_t	initIndexSize
	Initial database index size.
int	nThreads
	Concurrency level for sequential search and sort operations.
offs_t	freeSpaceReuseThreshold
	Threshold for amount of deallocated space after which allocation bitmap is scanned from the very beginning reusing deallocated object.
int	parallelScanThreshold
	Minimal number of records in the table when performing sequential search in parallel makes sense.
int	nodeId
	Replicated database node id.
char **	nodeAddresses
	Replicated database node addresses.
int	nNodes
	Number of nodes in replicasted database.
int	pollInterval
	Interval of polling nodes.
int	waitReadyTimeout
	Timeout of waiting confirmation from standby node by new master node when it becomes active at startup.
int	waitStatusTimeout
	Timeout of requesting status of other nodes during startup.
int	recoveryConnectionAttempts
	Maximal number of attempts to establish with other nodes during recovery.
int	startupConnectionAttempts
	Maximal number of attempts to establish with other nodes at startup.
int	replicationWriteTimeout
	Timeout of writing to replication node.
int	maxAsyncRecoveryIterations
	Maximal number of asynchronous recovery iterations.

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Constructor & Destructor Documentation

OpenParameters

(

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[inline]

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Member Data Documentation

char const* databaseName

Database name.

char const* databaseFilePath

Database file path.

time_t transactionCommitDelay

Transaction commit delay.

time_t waitLockTimeoutMsec

Deadlock detection timeout (after expiration of this timeout a lokc is revoked).

dbAccessType accessType

Database access type.

size_t initSize

Initial database file size.

size_t extensionQuantum

Quantum for extending memory allocation bitmap.

size_t initIndexSize

Initial database index size.

int nThreads

Concurrency level for sequential search and sort operations.

offs_t freeSpaceReuseThreshold

Threshold for amount of deallocated space after which allocation bitmap is scanned from the very beginning reusing deallocated object.

int parallelScanThreshold

Minimal number of records in the table when performing sequential search in parallel makes sense.

int nodeId

Replicated database node id.

char** nodeAddresses

Replicated database node addresses.

int nNodes

Number of nodes in replicasted database.

int pollInterval

Interval of polling nodes.

int waitReadyTimeout

Timeout of waiting confirmation from standby node by new master node when it becomes active at startup.

int waitStatusTimeout

Timeout of requesting status of other nodes during startup.

int recoveryConnectionAttempts

Maximal number of attempts to establish with other nodes during recovery.

int startupConnectionAttempts

Maximal number of attempts to establish with other nodes at startup.

int replicationWriteTimeout

Timeout of writing to replication node.

If write can not be completed within specified timeout, then node is considered to be dead and connection is hanged up.

int maxAsyncRecoveryIterations

Maximal number of asynchronous recovery iterations.

If due to permanent updates of master database recovery can not be completed within specified number of iterations, then synchronous recovery is performed (master will not perform any transaction commits until the end of recovery).