V$OB_PROCESSLIST

2023-12-25 08:49:41  Updated

Purpose

The V$OB_PROCESSLIST view displays the session information about the current OBServer node.

Note

This view is introduced since OceanBase Database V4.0.0.

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 SQL port number.
ID bigint(20) unsigned NO The session ID.
USER varchar(32) NO The username.
HOST varchar(128) NO The hostname of the client. For example, if you connect to the OBServer node by using an OceanBase Database Proxy (ODP), the value is the host address of the ODP.
DB varchar(128) NO The name of the database accessed.
TENANT varchar(128) NO The name of the tenant accessed.
COMMAND varchar(4096) NO The type of the command being executed in the session.
TIME bigint(20) NO The execution time of the current command, in seconds. If a retry occurs, the value is cleared and recalculated.
TOTAL_TIME bigint(20) NO The total execution time of the current command, in seconds. If a retry occurs, the value will not be cleared.
STATE varchar(128) NO The current session status.
INFO varchar(262143) NO The command that is being executed.
PROXY_SESSID bigint(20) unsigned NO The ODP session ID is displayed if the client is an ODP.
MASTER_SESSID bigint(20) unsigned NO The ID of the master session, which is used to concatenate multiple sub-sessions of the same SQL statement.
USER_CLIENT_IP varchar(46) NO The IP address of the user client.
USER_HOST varchar(128) NO The hostname of the user client.
RETRY_CNT bigint(20) NO The number of retries of the current command.
RETRY_INFO bigint(20) NO The retry information about the current command. Generally, the value is the error code of the last retry.
SQL_ID varchar(32) NO The ID of the SQL statement.
TRANS_ID bigint(20) unsigned NO The transaction ID.
THREAD_ID bigint(20) unsigned NO The thread ID.
SSL_CIPHER varchar(4096) NO The encryption password.
TRACE_ID varchar(64) NO The trace ID.
TRANS_STATE varchar(32) NO The transaction status.
ACTION varchar(4096) NO The name of the operation being executed that is set by calling the DBMS_APPLICATION_INFO.SET_ACTION procedure.
MODULE varchar(4096) NO The name of the module that is set by calling the DBMS_APPLICATION_INFO.SET_MODULE procedure.
CLIENT_INFO varchar(4096) NO The client information set by the DBMS_APPLICATION_INFO.SET_CLIENT_INFO procedure.
LEVEL bigint(20) NO The monitoring level of end-to-end diagnostics of the session. For example, the value 1 indicates level-1 diagnostics.

Note

This column is introduced since OceanBase Database V4.2.1.

SAMPLE_PERCENTAGE bigint(20) NO The sampling frequency for end-to-end diagnostics of the session. For example, the value 50 indicates that diagnostics are sampled at the frequency of 50%.

Note

This column is introduced since OceanBase Database V4.2.1.

RECORD_POLICY varchar(32) NO The recording strategy for end-to-end diagnostics of the session. Three strategies are supported:
  • ALL: All sampling-enabled traces that are hit are recorded in the log file immediately after each span ends.
  • ONLY_SLOW_QUERY: Among sampling-enabled traces that are hit, only traces of slow queries are recorded in the log file, and other traces are discarded. For this strategy, trace logs are recorded after a request ends and is determined as a slow query. In the proxy, the root span (transaction-level span) is immediately recorded when a slow query is detected.
  • SAMPLE_AND_SLOW_QUERY: Among sampling-enabled traces that are hit, those meeting any of the following conditions are recorded in the log file:
    1. The hidden parameter _print_sample_ppm is used for sampling at a frequency of 0.01% and the sampling result is hit.
    2. The condition specified in the ONLY_SLOW_QUERY strategy is met.
    In this mode, the logging time varies based on the situation. Specifically, if Condition 1 is met, it is marked on the client that the trace log will be forcibly recorded and this information will be transferred to subsequent components on the link. If Condition 2 is met, the logging time is the same as that in the ONLY_SLOW_QUERY strategy.

Note

This column is introduced since OceanBase Database V4.2.1.

LB_VID bigint(20) NO The VPC ID of the load balancing service if you directly connect to the database in a public cloud. Otherwise, the value is NULL.

Note

This column is introduced since OceanBase Database V4.2.1.

LB_VIP varchar(46) NO The IP address used by the client to connect to the load balancing service if you directly connect to the database in a public cloud. Otherwise, the value is NULL.

Note

This column is introduced since OceanBase Database V4.2.1.

LB_VPORT bigint(20) NO The port used by the client to connect to the load balancing service if you directly connect to the database in a public cloud. Otherwise, the value is NULL.

Note

This column is introduced since OceanBase Database V4.2.1.

IN_BYTES bigint(20) NO The inbound traffic of the session, in bytes.

Note

This column is introduced since OceanBase Database V4.2.1.

OUT_BYTES bigint(20) NO The outbound traffic of the session, in bytes.

Note

This column is introduced since OceanBase Database V4.2.1.

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