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Oracle® Database Reference
11g Release 2 (11.2)

E40402-15
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DBA_HIST_RSRC_CONSUMER_GROUP

DBA_HIST_RSRC_CONSUMER_GROUP displays historical information about Resource Manager consumer groups. This view contains snapshots of V$RSRC_CONS_GROUP_HISTORY.

Column Datatype NULL Description
SNAP_ID NUMBER NOT NULL Unique snapshot ID
DBID NUMBER NOT NULL Database ID for the snapshot
INSTANCE_NUMBER NUMBER NOT NULL Instance number for the snapshot
SEQUENCE# NUMBER NOT NULL A sequential counter that uniquely describes the DBA_HIST_RSRC_PLAN entry to which these consumer group statistics apply. When the instance is restarted, this value is reset to zero.
CONSUMER_GROUP_ID NUMBER NOT NULL Consumer group object ID (a unique number, consistent across database shutdowns and startups)
CONSUMER_GROUP_NAME VARCHAR2(30) NOT NULL Name of the consumer group
REQUESTS NUMBER NOT NULL Cumulative number of requests that were executed in the consumer group
CPU_WAIT_TIME NUMBER NOT NULL Cumulative amount of time that sessions waited for CPU because of resource management. This does not include waits due to latch or enqueue contention, I/O waits, and so on.
CPU_WAITS NUMBER NOT NULL Cumulative number of times all sessions in the consumer group had to wait for CPU because of resource management. This does not include waits due to latch or enqueue contention, I/O waits, and so on.
CONSUMED_CPU_TIME NUMBER NOT NULL Cumulative amount of CPU time consumed by all sessions in the consumer group (in milliseconds)
YIELDS NUMBER NOT NULL Cumulative number of times that sessions in the consumer group had to yield CPU to other sessions because of quantum expiration
ACTIVE_SESS_LIMIT_HIT NUMBER NOT NULL Number of times that sessions in the consumer group were queued because the consumer group reached its active session limit
UNDO_LIMIT_HIT NUMBER NOT NULL Number of times that queries in the consumer group were cancelled because the consumer group reached its UNDO_POOL limit
SWITCHES_IN_CPU_TIME NUMBER NOT NULL Number of switches into the consumer group because of the Resource Manager plan's SWITCH_TIME limit
SWITCHES_OUT_CPU_TIME NUMBER NOT NULL Number of switches out of the consumer group because of the Resource Manager plan's SWITCH_TIME limit
SWITCHES_IN_IO_MEGABYTES NUMBER NOT NULL Number of switches into the consumer group because of the Resource Manager plan's SWITCH_IO_MEGABYTES limit
SWITCHES_OUT_IO_MEGABYTES NUMBER NOT NULL Number of switches out of the consumer group because of the Resource Manager plan's SWITCH_IO_MEGABYTES limit
SWITCHES_IN_IO_REQUESTS NUMBER NOT NULL Number of switches into the consumer group because of the Resource Manager plan's SWITCH_IO_REQS limit
SWITCHES_OUT_IO_REQUESTS NUMBER NOT NULL Number of switches out of the consumer group because of the Resource Manager plan's SWITCH_IO_REQS limit
SQL_CANCELED NUMBER NOT NULL Number of times that SQL queries running in the consumer group were aborted because they exceeded the Resource Manager plan's SWITCH_TIME limit and CANCEL_SQL was specified as the Resource Manager plan's SWITCH_GROUP
ACTIVE_SESS_KILLED NUMBER NOT NULL Number of times that sessions running in the consumer group were terminated because they exceeded the Resource Manager plan's SWITCH_TIME limit and KILL_SESSION was specified as the Resource Manager plan's SWITCH_GROUP
IDLE_SESS_KILLED NUMBER NOT NULL Number of times that sessions in the consumer group were killed because they were idle for too long (reached MAX_IDLE_TIME)
IDLE_BLKR_SESS_KILLED NUMBER NOT NULL Number of times that sessions in the consumer group were killed because they were idle too long (reached MAX_IDLE_BLOCKER_TIME) and were blocking other sessions
QUEUED_TIME NUMBER NOT NULL Total amount of time that sessions in the consumer group have spent in the QUEUED state because of the active session limit (in milliseconds)
QUEUE_TIME_OUTS NUMBER NOT NULL Number of times that requests from sessions in the consumer group timed out because they were queued for too long (reached QUEUEING_P1)
IO_SERVICE_TIME NUMBER NOT NULL Cumulative I/O wait time (in milliseconds)
IO_SERVICE_WAITS NUMBER NOT NULL Total number of wait requests
SMALL_READ_MEGABYTES NUMBER NOT NULL Number of single block megabytes read
SMALL_WRITE_MEGABYTES NUMBER NOT NULL Number of single block megabytes written
LARGE_READ_MEGABYTES NUMBER NOT NULL Number of multiblock megabytes read
LARGE_WRITE_MEGABYTES NUMBER NOT NULL Number of multiblock megabytes written
SMALL_READ_REQUESTS NUMBER NOT NULL Number of single block read requests
SMALL_WRITE_REQUESTS NUMBER NOT NULL Number of single block write requests
LARGE_READ_REQUESTS NUMBER NOT NULL Number of multiblock read requests
LARGE_WRITE_REQUESTS NUMBER NOT NULL Number of multiblock write requests
PQS_QUEUEDFoot 1  NUMBER   Number of times that sessions in the consumer group were queued when trying to run parallel statements
PQ_QUEUED_TIMEFootref 1 NUMBER   Total amount of time that sessions in the consumer group were queued when trying to run parallel statements (in milliseconds)
PQ_QUEUE_TIME_OUTSFootref 1 NUMBER   Number of times that parallel statements from sessions in the consumer group timed out because their queue time exceeded the Resource Manager plan's PARALLEL_QUEUE_TIMEOUT limit
PQS_COMPLETEDFootref 1 NUMBER   Total number of completed parallel statements in the consumer group
PQ_SERVERS_USEDFootref 1 NUMBER   Total number of parallel servers used by completed parallel statements in the consumer group
PQ_ACTIVE_TIMEFootref 1 NUMBER   Cumulative sum of the parallel active times for all completed parallel statements in the consumer group (in milliseconds)

Footnote 1 This column is available starting with Oracle Database 11g Release 2 (11.2.0.2).