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Manpages DB_DEADLOCKSection: User Commands (1)Updated: April 10, 1998 Index Return to Main Contents NAMEdb_deadlock - the DB database deadlock detectorSYNOPSISdb_deadlock [-vw] [-a m | o | y] [-h home] [-L file ] [-t sec ] DESCRIPTIONThe db_deadlock utility traverses the database lock structures and aborts a transaction each time it detects a deadlock. This utility should be run as a background daemon whenever multiple threads or processes are using locking. By default, a random transaction involved in the deadlock is aborted.The options are as follows:
At least one of the -t and -w options must be specified. The db_deadlock utility attaches to DB shared memory regions. In order to avoid region corruption, it should always be given the chance to detach and exit gracefully. To cause db_deadlock to clean up after itself and exit, send it an interrupt signal (SIGINT). The db_deadlock utility exits 0 on success, and >0 if an error occurs. ENVIRONMENT VARIABLESThe following environment variables affect the execution of db_deadlock:
SEE ALSOThe DB library is a family of classes that provides a modular programming interface to transactions and record-oriented file access. The library includes support for transactions, locking, logging and file page caching, as well as various indexed access methods. Many of the classes (e.g., the file page caching class) are useful independent of the other DB classes, although some classes are explicitly based on other classes (e.g., transactions and logging).db_archive(1), db_checkpoint(1), db_deadlock(1), db_dump(1), db_load(1), db_recover(1), db_stat(1),
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