How do I restart the MMON process?

How do I restart the MMON process?

Follow below steps to restart the MMON process:

1. Grant restricted session to public: This grant is required to avoid any impact on the sessions connecting to database.
2. Enable and disable restricted sessions.
3. Revoke the restricted session: revoke restricted session from public;
4. Check MMON process; ps -ef | grep mmon.

What is the best way to distribute Oracle database processes?

In general, it is better to be connected through a dispatcher and use a shared server process. This is illustrated in Figure 4-2, “Oracle Database Shared Server Processes”. A shared server process can be more efficient because it keeps the number of processes required for the running instance low.

How many processes are running in Oracle?

Oracle has at least 8 processes running which run the db. Like RMON etc.

What is MMON process?

MMON (Manageability Monitor) is a background process that gathers memory statistics (snapshots) and stores this information in the AWR (automatic workload repository). MMON is also responsible for issuing alerts for metrics that exceed their thresholds. This process was introduced in Oracle 10g.

What is MMON process in Oracle?

How do you check if any process is running in Oracle?

from the top menu select “View” then “Task Progress”. it will display back the progress window.

What is process limit in Oracle?

Oracle Database allows a maximum of 20 database writer processes (DBW0-DBW9 and DBWa-DBWj). The DB_WRITER_PROCESSES initialization parameter specifies the number of DBWn processes.

What is PID and SPID in Oracle?

SPID is (Operating system)Server process Id.. where server is actual machine/server on which oracle is running, so it is actual process running on the server. PID is Oracle Process Id(internal to Oracle ) .. found on v$process corresponds to the User Process or Server Process.

What is Oracle MMAN process?

MMAN background process manages the dynamic resizing of SGA memory components depending on load for database. Uses the the metrics collected to determine the ideal distribution of memory within oracle. It constantly monitors the database and adjusts the memory allocations according to workloads.

What is the purpose of mmon in Oracle 10g?

MMON (Manageability Monitor) is a background process that gathers memory statistics (snapshots) and stores this information in the AWR (automatic workload repository). MMON is also responsible for issuing alerts for metrics that exceed their thresholds. This process was introduced in Oracle 10g.

What are the background processes in Oracle 10g?

MMON – The Oracle 10g background process to collect statistics for the Automatic Workload Repository (AWR). MMNL – This process performs frequent and lightweight manageability-related tasks, such as session history capture and metrics computation.

How to restart mmon process in Oracle Database?

Follow below steps to restart the MMON process: 1 Grant restricted session to public:. This grant is required to avoid any impact on the sessions connecting to… 2 Enable and disable restricted sessions. Enabling and disabling will start the MMON process. 3 Revoke the restricted session:. 4 Check MMON process;. More

Where does mmon store memory snapshots in Oracle?

MMON (Manageability Monitor) is a background process that gathers memory statistics (snapshots) and stores this information in the AWR (automatic workload repository).