1. sessions的值是根据processes的值计算得到的,一般情况下只需要设置processes的值即可。 2. 在Oracle 10g中,sessions大小的的计算公式为:(1.1 * PROCESSES) + 5;在Oracle 11g中,sessions大小的的计算公式为:(1.5 * PROCESSES) + 22。 3. 若sessions的当前值比计算值大的话,则sessions的值可能保持不变;若ses...
if you increase the valueof SESSIONS, you should consider whether to adjust the valuesof ENQUEUE_RESOURCES and TRANSACTIONS as well. (Notethat ENQUEUE_RESOURCES is obsolete as of Oracle Database 10g release2 (10.2).)
if you increase the valueof SESSIONS, you should consider whether to adjust the valuesof ENQUEUE_RESOURCES and TRANSACTIONS as well. (Notethat ENQUEUE_RESOURCES is obsolete as of Oracle Database 10g release2 (10.2).)
You can control the number of dispatcher processes in the instance. If the V$QUEUE and V$DISPATCHER views indicate that the load on the dispatcher processes is consistently high, start additional dispatcher processes to route user requests without waiting; you may start new dispatchers until the nu...
handle at any given time. When theMaxClientsvalue is exceeded, Oracle HTTP Server refuses to handle any new requests until it handles the current load and the HTTP processes are freed. In fact, client browsers may belocked outif the number of allowable sessions has been exceeded by other ...
, it also seems to make sense (if you can arrange it) to minimise the amount of memory the session is allowed to use for a sort operation, as this will reduce the CPU used by the session and avoid grabbing excess redundant memory that could be used more effectively by other sessions....
dNFS manages the IO channel and makes use of multiple sessions, so this option is obsolete and can cause manifold issues. The dNFS client is going to ignore the mount options and is going to handle the IO directly.Both NFS versions (v3 and v4.1) with ANF are supported for the Ora...
Oracle has continued to increase the functionality of partitioning features. Since Oracle Database 10g Release 2, you can reorganize individual partitions online, the maximum number of partitions increased from 64 KB – 1 to 128 KB – 1, and query optimization using partition pruning improved. Orac...
Reliability and Availability Features of Oracle Solaris 10The ability to rapidly diagnose, isolate, and recover from hardware and application faults is essential to increase reliability and availability of the system. In addition to the error detection and recovery features provided by the hardware...
into action. The primary DBA responsible for the database drills down to the database target in Grid Control, and opens the Database Performance page (Figure 1). A huge increase in “application waits” can be seen immediately; this is the colored portion of the Average Active Sessions ...