DbEnv.set_lk_detect
DbEnv.set_lk_detect |
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import com.sleepycat.db.*;public void set_lk_detect(int detect) throws DbException;
Set if the deadlock detector is to be run whenever a lock conflict occurs, and specify which transaction should be aborted in the case of a deadlock. The specified value must be one of the following list:
The DbEnv.set_lk_detect interface may be used only to configure Berkeley DB before the DbEnv.open interface is called.
The DbEnv.set_lk_detect method throws an exception that encapsulates a non-zero error value on failure.
The database environment's deadlock detector configuration may also be set using the environment's DB_CONFIG file. The syntax of the entry in that file is a single line with the string "set_lk_detect", one or more whitespace characters, and the interface detect argument as a string; for example, "set_lk_detect DB_LOCK_OLDEST". Because the DB_CONFIG file is read when the database environment is opened, it will silently overrule configuration done before that time.
The DbEnv.set_lk_detect method may fail and throw an exception encapsulating a non-zero error for the following conditions:
Called after DbEnv.open was called.
The DbEnv.set_lk_detect method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the DbEnv.set_lk_detect method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.
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Copyright Sleepycat Software
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Set if the deadlock detector is to be run whenever a lock conflict occurs, and specify what lock request(s) should be rejected. As transactions acquire locks on behalf of a single locker ID, rejecting a lock request associated with a transaction normally requires the transaction be aborted. The specified value must be one of the following list: d32 10 a41 14
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The DbEnv.set_lk_detect method configures a database environment, not only operations performed using the specified DbEnv handle.
The DbEnv.set_lk_detect interface may not be called after the DbEnv.open interface is called. If the database environment already exists when DbEnv.open is called, the information specified to DbEnv.set_lk_detect must be consistent with the existing environment or an error will be returned. d68 3 a70 3 If a catastrophic error has occurred, the DbEnv.set_lk_detect method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d72 1 a72 1 DbEnv, DbLock d74 12 a85 1 Locking Subsystem and Related Methods @ 1.1.1.4 log @Import: RPM 4.1 @ text @d1 2 a2 2 d4 1 d51 8 a58 2
The DbEnv.set_lk_detect interface may be used only to configure Berkeley DB before the DbEnv.open interface is called. d75 3 a77 3 If a catastrophic error has occurred, the DbEnv.set_lk_detect method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d79 1 a79 1 DbEnv, DbLock d81 1 a81 12 DbEnv.set_lk_conflicts, DbEnv.set_lk_detect, DbEnv.set_lk_max_lockers, DbEnv.set_lk_max_locks, DbEnv.set_lk_max_objects, DbEnv.lock_detect, DbEnv.lock_get, DbEnv.lock_id, DbEnv.lock_id_free, DbEnv.lock_put, and DbEnv.lock_stat. @ 1.1.1.5 log @Import: RPM 4.1.1 @ text @d1 2 a2 2 a3 1 d50 2 a51 8
The DbEnv.set_lk_detect method configures a database environment, not only operations performed using the specified DbEnv handle.
The DbEnv.set_lk_detect interface may not be called after the DbEnv.open interface is called. If the database environment already exists when DbEnv.open is called, the information specified to DbEnv.set_lk_detect must be consistent with the existing environment or an error will be returned. d68 3 a70 3 If a catastrophic error has occurred, the DbEnv.set_lk_detect method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d72 1 a72 1 DbEnv, DbLock d74 12 a85 1 Locking Subsystem and Related Methods @