Note
This view is available starting with V4.0.0.
Purpose
The V$OB_PROCESSLIST view displays session information on the current OBServer node.
Columns
| Column | Type | Nullable | Description |
|---|---|---|---|
| SVR_IP | varchar(46) | NO | The IP address of the server. |
| SVR_PORT | bigint(20) | NO | The port number of the server. |
| SQL_PORT | bigint(20) | NO | The port number of SQL. |
| ID | bigint(20) unsigned | NO | The session ID. |
| USER | varchar(32) | NO | The username. |
| HOST | varchar(128) | NO | The name of the client host. If the client is connected through an OBProxy, this column displays the host address of the OBProxy. |
| DB | varchar(128) | NO | The name of the database being accessed. |
| TENANT | varchar(128) | NO | The name of the tenant being accessed. |
| COMMAND | varchar(4096) | NO | The type of command being executed. |
| TIME | bigint(20) | NO | The time when the command is executed, in seconds. If the command is retried, this value is reset to zero and recalculated. |
| TOTAL_TIME | bigint(20) | NO | The total time taken for the command to be executed.
NoteIn versions earlier than V4.2.5, this field indicates the total execution time of the command, which is not reset when the command is retried. |
| STATE | varchar(128) | NO | The current session state. |
| INFO | varchar(262143) | NO | The command being executed. |
| PROXY_SESSID | bigint(20) unsigned | NO | If the client is an OBProxy, this column displays the proxy session ID. |
| MASTER_SESSID | bigint(20) unsigned | NO | The session ID of the main session, which is used to link multiple sub-sessions of the same SQL statement. |
| USER_CLIENT_IP | varchar(46) | NO | The IP address of the client. |
| USER_HOST | varchar(128) | NO | The name of the client host. |
| RETRY_CNT | bigint(20) | NO | The number of retries for the current command. |
| RETRY_INFO | bigint(20) | NO | The retry information for the current command, which is usually the error code of the last retry. |
| SQL_ID | varchar(32) | NO | The SQL ID. |
| TRANS_ID | bigint(20) unsigned | NO | The transaction ID. |
| THREAD_ID | bigint(20) unsigned | NO | The thread ID. |
| SSL_CIPHER | varchar(4096) | NO | The name of the encryption cipher. |
| TRACE_ID | varchar(64) | NO | The trace ID. |
| TRANS_STATE | varchar(32) | NO | The transaction state. Valid values:
|
| ACTION | varchar(4096) | NO | The name of the current operation, which is set by calling the DBMS_APPLICATION_INFO.SET_ACTION procedure. |
| MODULE | varchar(4096) | NO | The name of the current operation, which is set by calling the DBMS_APPLICATION_INFO.SET_MODULE procedure. |
| CLIENT_INFO | varchar(4096) | NO | The information set by calling the DBMS_APPLICATION_INFO.SET_CLIENT_INFO procedure. |
| LEVEL | bigint(20) | NO | The end-to-end tracing monitoring level of the session. For example, 1 indicates the diagnostic information of level 1.
NoteThis column is available starting with V4.2.1. |
| SAMPLE_PERCENTAGE | bigint(20) | NO | The end-to-end tracing sampling frequency of the session. For example, 50 indicates that diagnostic information is sampled with a 50% probability.
NoteThis column is available starting with V4.2.1. |
| RECORD_POLICY | varchar(32) | NO | The end-to-end tracing recording policy of the session. The following three policies are supported:
NoteThis column is available starting with V4.2.1. |
| LB_VID | bigint(20) | NO | If the database is directly connected to a load balancer in a public cloud environment, this column displays the VPC ID of the load balancer. Otherwise, it displays NULL.
NoteThis column is available starting with V4.2.1. |
| LB_VIP | varchar(46) | NO | If the database is directly connected to a load balancer in a public cloud environment, this column displays the IP address of the load balancer. Otherwise, it displays NULL.
NoteThis column is available starting with V4.2.1. |
| LB_VPORT | bigint(20) | NO | If the database is directly connected to a load balancer in a public cloud environment, this column displays the port of the load balancer. Otherwise, it displays NULL.
NoteThis column is available starting with V4.2.1. |
| IN_BYTES | bigint(20) | NO | The inflow traffic of the session, in bytes.
NoteThis column is available starting with V4.2.1. |
| OUT_BYTES | bigint(20) | NO | The outflow traffic of the session, in bytes.
NoteThis column is available starting with V4.2.1. |
| USER_CLIENT_PORT | bigint(20) | NO | The client address information.
NoteThis column is available starting with V4.2.3. |
| PROXY_USER | varchar(128) | NO |
NoteThis column is available starting with V4.2.3. |
| SERVICE_NAME | varchar(64) | NO | The service name that created the session. If the value is NULL, the session is not created by a service name.
NoteThis column is available starting with V4.2.4. |
| TOTAL_CPU_TIME | bigint(21) | NO | The CPU time used by the current command, in seconds.
Note
|
| TOP_INFO | varchar(262143) | NO | The top PL statement information of the SQL statement being executed.
Note
|
| MEMORY_USAGE | bigint(20) | NO | The memory size used by the current SQL statement, in bytes.
NoteThis column was introduced in V4.2.5 BP2. |
Sample query
Query the session information of the current OBServer node.
obclient [oceanbase]> SELECT * FROM oceanbase.V$OB_PROCESSLIST LIMIT 1\G
The query result is as follows:
*************************** 1. row ***************************
SVR_IP: xx.xx.xx.xx
SVR_PORT: 2882
SQL_PORT: 2881
ID: 3221711494
USER: root
HOST: xx.xx.xx.xx:25892
DB: oceanbase
TENANT: mysql001
COMMAND: Query
TIME: 0.00557
TOTAL_TIME: 0.005621
STATE: ACTIVE
INFO: SELECT * FROM oceanbase.V$OB_PROCESSLIST LIMIT 1
PROXY_SESSID: NULL
MASTER_SESSID: NULL
USER_CLIENT_IP: xx.xx.xx.xx
USER_HOST: %
RETRY_CNT: 0
RETRY_INFO: 0
SQL_ID: F55ED441CB4950C23260C7AAFB750B2F
TRANS_ID: 0
THREAD_ID: 31936
SSL_CIPHER: NULL
TRACE_ID: YB42AC1E87E1-000XXXXXXXX-0-0
TRANS_STATE:
ACTION:
MODULE:
CLIENT_INFO:
LEVEL: 1
SAMPLE_PERCENTAGE: 10
RECORD_POLICY: SAMPLE_AND_SLOW_QUERY
LB_VID: NULL
LB_VIP: NULL
LB_VPORT: NULL
IN_BYTES: 448
OUT_BYTES: 0
USER_CLIENT_PORT: 25892
PROXY_USER:
SERVICE_NAME: NULL
TOTAL_CPU_TIME: 0
TOP_INFO: NULL
MEMORY_USAGE: 3219456
1 row in set