OpenTP1 Version 7 Description

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4.2.5 System files: server recovery journal file

Organization of this subsection
(1) Purpose of the server recovery journal file
(2) Creating the server recovery journal file
(3) Recovering from an error in a server recovery journal file

(1) Purpose of the server recovery journal file

The server recovery journal file is separate from the system journal files and collects various types of journal information about each system service. Using the server recovery journal file enables each system service to read journals independently, reducing recovery time at a complete-recovery restart.

(2) Creating the server recovery journal file

OpenTP1 automatically obtains information for the server recovery journal file, which has the filename xxx_nn (where xxx is the name of the system service and nn is an integer) in the directory $DCDIR/spool/dcsjl/.

(3) Recovering from an error in a server recovery journal file

When an error occurs in the server recovery journal file during restart processing, OpenTP1 outputs a message to report this situation. When this message is output, use the command jnlmkrf to recover the server recovery journal file. Use the unloaded-journals file to recover the server recovery journal file.