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Oracle Streams
Chapter 5 -
Apply Process Configuration

Coordinator Process:

The state of a coordinator process describes what the coordinator process is doing currently. The state of a coordinator process can be viewed by querying the v$streams_apply_coordinator dynamic performance view. The following coordinator process states are possible:

  • INITIALIZING - Starting up
     

  • APPLYING - Passing transactions to Apply servers
     

  • SHUTTING DOWN CLEANLY - Stopping without an error
     

  • ABORTING - Stopping because of an Apply error

The following SQL block, for example, shows the activity of the Apply coordinator:

COL APPLY_NAME HEADING 'Apply Process Name' FORMAT A25
COL TOTAL_RECEIVED HEADING 'Total|Trans|Received' FORMAT 99999999
COL TOTAL_APPLIED HEADING 'Total|Trans|Applied' FORMAT 99999999
COL TOTAL_ERRORS HEADING 'Total|Apply|Errors' FORMAT 9999
COL BEING_APPLIED HEADING 'Total|Trans Being|Applied' FORMAT 9999999
COL TOTAL_IGNORED HEADING 'Total|Trans|Ignored' FORMAT 99999999
--
SELECT APPLY_NAME,
 TOTAL_RECEIVED,
 TOTAL_APPLIED,
 TOTAL_ERRORS,
 TOTAL_ASSIGNED - (TOTAL_ROLLBACKS + TOTAL_APPLIED) BEING_APPLIED,
 TOTAL_IGNORED
FROM V$STREAMS_APPLY_COORDINATOR
/


The above text is an excerpt from:

Oracle Streams
High Speed Replication and Data Sharing

ISBN 0-9745993-5-2

by Madhu Tumma
 


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