Berkeley DB: DbEnv.set_lk_max
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++

# DbEnv.set_lk_max |

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    import com.sleepycat.db.*;

    public void set_lk_max(int lk_max)
    	throws DbException;

# Description

Set the maximum number of locks to be held or requested in the table. This value is used by DbEnv.open to estimate how much space to allocate for various lock-table data structures. If no value is specified, a default value is used.

The DbEnv.set_lk_max interface may only be used to configure Berkeley DB before the DbEnv.open interface is called.

The DbEnv.set_lk_max method throws an exception that encapsulates a non-zero error value on failure.

The database environment's maximum number of locks 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_max", one or more whitespace characters, and the number of locks. Because the DB_CONFIG file is read when the database environment is opened, it will silently overrule configuration done before that time.

# Errors

EINVAL
  An invalid flag value or parameter was specified.

  Called after DbEnv.open was called.

### Classes

DbEnv, DbLock

# See Also

DbEnv.set_lk_conflicts, DbEnv.set_lk_detect, DbEnv.set_lk_max, DbEnv.lock_detect, DbEnv.lock_get, DbEnv.lock_id, DbLock.put and DbEnv.lock_stat.`

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