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Oracle® Database Reference
11g Release 2 (11.2)

E40402-12
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V$LOGSTDBY_PROCESS

V$LOGSTDBY_PROCESS displays dynamic information about what is happening to the Data Guard log apply services. This view is helpful when diagnosing performance problems during the logical application of archived redo logs to the standby database, and it can be helpful for other problems. This view is for logical standby databases only.

Column Datatype Description
SID NUMBER Session id of the associated session. This matches the SID column of the corresponding row in the V$SESSION view.
SERIAL# NUMBER Serial number of the associated session. Together, (SID,SERIAL#) uniquely identify the session in the current database instance.
LOGSTDBY_ID NUMBER Parallel query slave ID
SPID VARCHAR2(12) This corresponds to the SPID value of the row corresponding to this process in the V$PROCESS view
TYPE VARCHAR2(30) Role that the process plays in the context of SQL Apply:
  • COORDINATOR

  • APPLIER

  • ANALYZER

  • READER

  • PREPARER

  • BUILDER

STATUS_CODE NUMBER Operation code identifying the current action of the process:
  • 16111 - SQL Apply process is initializing

  • 16112 - SQL Apply process is cleaning up as apply and mining processes are stopping based on a user command

  • 16116 - SQL Apply process is idle

  • 16117 - SQL Apply process is busy and is not waiting on any interesting event

  • 16110 - APPLIER process has invoked a user-provided stored procedure in order to inspect a DDL statement prior to it being processed

  • 16113 - APPLIER process is applying DML changes to some user object or to a sequence

  • 16114 - APPLIER process is applying a DDL change

  • 16115 - COORDINATOR process is loading the LogMiner dictionary from the redo stream

  • 16243 - BUILDER process is paging out memory to free up space in lcr cache

  • 16240 - READER process idle waiting for additional logfile to be available

  • 16241 - READER process is idle waiting for the logfile to fill the log sequence gap

  • 16242 - READER process is processing a logfile

STATUS VARCHAR2(256) Description of the current action of the process
HIGH_SCN NUMBER Identifies the highest redo record/LCR processed by this process