| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a database monitoring device for, even when a delay occurs in asynchronous replication processing, reducing an influence on the update of a master database, and for solving the delay in the asynchronous replication processing from the master database to a replica database.SOLUTION: A database monitoring device 10 includes: a log storage part 11 for storing, in a log storage part 40 capable of accumulating update content to a master database 20, the update content as a log; a log reflection part 12 for reflecting the update content stored in the log storage part 40 on a replica database 30 capable of reflecting the update content to the master database 20; and a monitoring part 13 for monitoring the reflected state of the update content to the replica database 30 by the log reflection part 12 in accordance with predetermined conditions, and for, when a delay occurs in the reflected state, selecting a specific log whose update is necessary from among the logs stored in the log storage part 40, and for instructing the log reflection part 12 to reflect the specific log.</p> |
