Transaction Manager

name	type	description
transaction.online_rw	int, ro	Number of active RW transactions.
transaction.online_ro	int, ro	Number of active RO transactions.
transaction.commit	int, ro	Total number of completed transactions.
transaction.rollback	int, ro	Total number of transaction rollbacks.
transaction.conflict	int, ro	Total number of transaction conflicts.
transaction.lock	int, ro	Total number of transaction locks.
transaction.latency	string, ro	Average transaction latency from begin till commit.
transaction.log	string, ro	Average transaction log length.
transaction.vlsn	int, ro	Current VLSN.
transaction.gc	int, ro	SSI GC queue size.