DB2 Version 9.7 for Linux, UNIX, and Windows
DB2 Version 9.7 for Linux, UNIX, and Windows
The MON_CONNECTION_SUMMARY administrative view returns key metrics for all connections in the currently connected database. It is designed to help monitor the system in a high-level manner, showing incoming work per connection.
The metrics returned represent the accumulation of all metrics for requests that were submitted by the identified connection across all members of the database.
The schema is SYSIBMADM.
| Column name | Data type | Description or Monitor element |
|---|---|---|
| APPLICATION_HANDLE | BIGINT | application_handle - Application handle |
| APPLICATION_NAME | VARCHAR(128) | appl_name - Application name |
| APPLICATION_ID | VARCHAR(128) | appl_id - Application ID |
| SESSION_AUTH_ID | VARCHAR(128) | session_auth_id - Session authorization ID |
| TOTAL_APP_COMMITS | BIGINT | total_app_commits - Total application commits monitor elements |
| TOTAL_APP_ROLLBACKS | BIGINT | total_app_rollbacks - Total application rollbacks monitor element |
| ACT_COMPLETED_TOTAL | BIGINT | act_completed_total - Total completed activities monitor element |
APP_RQSTS_COMPLETED |
BIGINT | Total number of external (application) requests that completed successfully across all members of the database for the specified service subclass |
| AVG_RQST_CPU_TIME | BIGINT | Average amount of CPU time, in microseconds, used by all external requests that completed successfully. It represents the total of both user and system CPU time. Formula to calculate ratio: TOTAL_CPU_TIME / APP_RQSTS_COMPLETED_TOTAL |
ROUTINE_TIME_ |
DECIMAL(5,2) | The percentage of time the database server spent working on requests that was spent executing user routines. Formula to calculate ratio: TOTAL_ROUTINE_TIME / TOTAL_RQST_TIME |
RQST_WAIT_ |
DECIMAL(5,2) | The percentage of the time spent working on requests that was spent waiting within the DB2® database server. Formula to calculate ratio: TOTAL_WAIT_TIME / TOTAL_RQST_TIME |
ACT_WAIT_TIME_ |
DECIMAL(5,2) | The percentage of the time spent executing activities that was spent waiting within the DB2 database server. Formula to calculate ratio: TOTAL_ACT_WAIT_TIME / TOTAL_ACT_TIME |
| IO_WAIT_TIME_PERCENT | DECIMAL(5,2) | The percentage of the time spent waiting within the DB2 database server that was due to I/O operations. This includes time spent performing direct reads or direct writes, and time spent reading data and index pages from the table space to the bufferpool or writing them back to disk. Formula to calculate ratio: (POOL_READ_TIME + POOL_WRITE_TIME + DIRECT_READ_TIME + DIRECT_WRITE_TIME) / TOTAL_WAIT_TIME |
LOCK_WAIT_TIME_ |
DECIMAL(5,2) | The percentage of time spent waiting within the DB2 database server that was spent waiting on locks. Formula to calculate ratio: LOCK_WAIT_TIME / TOTAL_WAIT_TIME |
AGENT_WAIT_TIME_ |
DECIMAL(5,2) | The percentage of time spent waiting within the DB2 database server that was spent by an application queued to wait for an agent under concentrator configurations. Formula to calculate ratio: AGENT_WAIT_TIME / TOTAL_WAIT_TIME |
NETWORK_WAIT_ |
DECIMAL(5,2) | The percentage of time spent waiting within the DB2 database server that was spent on client-server communications. This includes time spent sending and receiving data over TCP/IP or using the IPC protocol. Formula to calculate ratio: (TCPIP_SEND_WAIT_TIME + TCPIP_RECV_WAIT_TIME + IPC_SEND_WAIT_TIME + IPC_RECV_WAIT_TIME) / TOTAL_WAIT_TIME |
SECTION_PROC_ |
DECIMAL(5,2) | The percentage of time the database server spent actively working on requests that was spent executing sections. This includes the time spent performing sorts. Formula to calculate ratio: TOTAL_SECTION_PROC_TIME / (TOTAL_RQST_TIME - TOTAL_WAIT_TIME) |
SECTION_SORT_ |
DECIMAL(5,2) | The percentage of time the database server spent actively working on requests that was spent performing sorts while executing sections. Formula to calculate ratio: TOTAL_SECTION_SORT_PROC_TIME / (TOTAL_RQST_TIME - TOTAL_WAIT_TIME) |
COMPILE_PROC_ |
DECIMAL(5,2) | The percentage of time the database server spent actively working on requests that was spent compiling an SQL statement. This includes explicit and implicit compile times. Formula to calculate ratio: (TOTAL_COMPILE_PROC_TIME + TOTAL_IMPLICIT_COMPILE_PROC_TIME) / (TOTAL_RQST_TIME - TOTAL_WAIT_TIME) |
TRANSACT_END_PROC |
DECIMAL(5,2) | The percentage of time the database server spent actively working on requests that was spent performing commit processing or rolling back transactions. Formula to calculate ratio: (TOTAL_COMMIT_PROC_TIME + TOTAL_ROLLBACK_PROC_TIME) / (TOTAL_RQST_TIME - TOTAL_WAIT_TIME) |
UTILS_PROC_ |
DECIMAL(5,2) | The percentage of time the database server spent actively working on requests that was spent running utilities. This includes performing runstats, reorganization, and load operations. Formula to calculate ratio: (TOTAL_RUNSTATS_PROC_TIME + TOTAL_REORG_PROC_TIME + TOTAL_LOAD_PROC_TIME) / (TOTAL_RQST_TIME - TOTAL_WAIT_TIME) |
AVG_LOCK_WAITS |
BIGINT | The average number of times that applications or connections waited for locks per coordinator activities (successful and aborted). Formula to calculate ratio: LOCK_WAITS / (ACT_COMPLETED_TOTAL + ACT_ABORTED_TOTAL) |
AVG_LOCK_TIMEOUTS |
BIGINT | The average number of times that a request to lock an object timed out per coordinator activities (successful and aborted). Formula to calculate ratio: LOCK_TIMEOUTS / (ACT_COMPLETED_TOTAL + ACT_ABORTED_TOTAL) |
AVG_DEADLOCKS_ |
BIGINT | The average number of deadlocks per coordinator activities (successful and aborted). Formula to calculate ratio: DEADLOCKS / (ACT_COMPLETED_TOTAL + ACT_ABORTED_TOTAL) |
AVG_LOCK_ESCALS |
BIGINT | The average number of times that locks have been escalated from several row locks to a table lock per coordinator activities (successful and aborted). Formula to calculate ratio: LOCK_ESCALS / (ACT_COMPLETED_TOTAL + ACT_ABORTED_TOTAL) |
ROWS_READ_PER_ |
BIGINT | The average number of rows read from the table per rows returned to the application. Formula to calculate ratio: ROWS_READ / ROWS_RETURNED |
TOTAL_BP_HIT_ |
DECIMAL(5,2) | The percentage of time that the database manager did not need to load a page from disk to service a data or index page request, including requests for XML storage objects (XDAs). Formula to calculate ratio: 1 - ((POOL_DATA_P_READS + POOL_TEMP_DATA_P_READS + POOL_INDEX_P_READS + POOL_TEMP_INDEX_P_READS + POOL_XDA_P_READS + POOL_TEMP_XDA_P_READS) / (POOL_DATA_L_READS + POOL_TEMP_DATA_L_READS + POOL_INDEX_L_READS + POOL_TEMP_INDEX_L_READS + POOL_XDA_L_READS + POOL_TEMP_XDA_L_READS)) |