HP UX Identity Security Software manual Nsslapd-db-circular-logging, Nsslapd-db-debug

3.4.1.6 nsslapd-db-circular-logging

This attribute specifies circular logging for the transaction log files. If this attribute is switched off, old transaction log files are not removed and are kept renamed as old log transaction files. Turning circular logging off can severely degrade server performance and, as such, should only be modified with the guidance of HP Technical Support or HP Professional Services.

Parameter	Description
Entry DN	cn=config, cn=ldbm database, cn=plugins, cn=config
Valid Values	on or off
Default Value	on
Syntax	DirectoryString
Example	nsslapd-db-circular-logging: on

3.4.1.7 nsslapd-db-debug

This attribute specifies whether additional error information is to be reported to Directory Server. To report error information, set the parameter to on. This parameter is meant for troubleshooting; enabling the parameter may slow down the Directory Server.

Parameter	Description
Entry DN	cn=config, cn=ldbm database, cn=plugins, cn=config
Valid Values	on or off
Default Value	off
Syntax	DirectoryString
Example	nsslapd-db-debug: off

3.4.1.8 nsslapd-db-durable-transactions

This attribute sets whether database transaction log entries are immediately written to the disk. The database transaction log contains a sequential listing of all recent database operations and is used for database recovery only. With durable transactions enabled, every directory change will always be physically recorded in the log file and, therefore, able to be recovered in the event of a system failure. However, the durable transactions feature may also slow the performance of the Directory Server. When durable transactions is disabled, all transactions are logically written to the database transaction log but may not be physically written to disk immediately. If there were a system failure before a directory change was physically written to disk, that change would not be recoverable. The nsslapd-db-durable-transactionsattribute is absent from dse.ldif. To disable durable transactions, add the attribute to dse.ldif.

This attribute is provided only for system modification/diagnostics and should be changed only with the guidance of HP Technical Support or HP Professional Services. Inconsistent settings of this attribute and other configuration attributes may cause the Directory Server to be unstable.

For more information on database transaction logging, refer to the "Monitoring Server and Database Activity" chapter in the HP-UX Directory Server administrator guide.

Parameter	Description
Entry DN	cn=config, cn=ldbm database, cn=plugins, cn=config
Valid Values	on or off
Default Value	on

3.4 Database plug-in attributes 135