5.55 DBA_HIST_SHARED_SERVER_SUMMARY

DBA_HIST_SHARED_SERVER_SUMMARY displays historical information for shared servers.

This includes information about shared server activity, the servers, common queues, and dispatcher queues. This view obtains information from V$SHARED_SERVER, V$DISPATCHER, V$CIRCUIT, and V$QUEUE, and is aggregated over all servers, dispatchers, queues, and circuits.

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
NUM_SAMPLES	NUMBER		Total number of samples
SAMPLE_TIME	NUMBER		Last sample timestamp
SAMPLED_TOTAL_CONN	NUMBER		Cumulative sum of total number of connections over all samples. To determine the average number of connections between two snapshots, divide the difference in SAMPLED_TOTAL_CONN by the difference in NUM_SAMPLES.
SAMPLED_ACTIVE_CONN	NUMBER		Cumulative sum of active number of connections over all samples. To determine the average number of active connections between two snapshots, divide the difference in SAMPLED_ACTIVE_CONN by the difference in NUM_SAMPLES.
SAMPLED_TOTAL_SRV	NUMBER		Cumulative sum of total number of servers over all samples. To determine the average number of servers between two snapshots, divide the difference in SAMPLED_TOTAL_SRV by the difference in NUM_SAMPLES.
SAMPLED_ACTIVE_SRV	NUMBER		Cumulative sum of active number of servers over all samples. To determine the average number of active servers between two snapshots, divide the difference in SAMPLED_ACTIVE_SRV by the difference in NUM_SAMPLES.
SAMPLED_TOTAL_DISP	NUMBER		Cumulative sum of total number of dispatchers over all samples. To determine the average number of dispatchers between two snapshots, divide the difference in SAMPLED_TOTAL_DISP by the difference in NUM_SAMPLES.
SAMPLED_ACTIVE_DISP	NUMBER		Cumulative sum of active number of dispatchers over all samples. To determine the average number of active dispatchers between two snapshots, divide the difference in SAMPLED_ACTIVE_DISP by the difference in NUM_SAMPLES.
SRV_BUSY	NUMBER		Total shared server busy time (in hundredths of a second)
SRV_IDLE	NUMBER		Total shared server idle time (in hundredths of a second)
SRV_IN_NET	NUMBER		Total shared server incoming network wait time (in hundredths of a second). This includes waits for receives and resets. This time is also included in SRV_BUSY.
SRV_OUT_NET	NUMBER		Total shared server outgoing network wait time (in hundredths of a second). This includes waits for sends and outbound connection requests. This time is also included in SRV_BUSY.
SRV_MESSAGES	NUMBER		Number of messages processed
SRV_BYTES	NUMBER		Total number of bytes in all messages
CQ_WAIT	NUMBER		Total time that all items in the common queue have waited (in hundredths of a second)
CQ_TOTALQ	NUMBER		Total number of items that have ever been in the common queue
DQ_TOTALQ	NUMBER		Total number of items that have ever been in a dispatcher queue
CON_DBID	NUMBER		The database ID of the PDB for the sampled session
CON_ID	NUMBER		The ID of the container that CON_DBID identifies. Possible values include: 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs. 1: This value is used for rows containing data that pertain to only the root n: Where n is the applicable container ID for the rows containing data

See Also:

• "V$SHARED_SERVER"

• "V$DISPATCHER"

• "V$CIRCUIT"

• "V$QUEUE"