@spec change(
  t(),
  keyword()
) :: t()

Change the options on the database instance after its initial creation.

See create/2 for the list of options.

@spec create(
  String.t() | nil,
  keyword()
) :: t()

Creates a database instance used to interact with the cluster.

If no cluster file is provided, then FoundationDB automatically determines a cluster file with which to connect to a cluster.

A single client can use this function multiple times to connect to different clusters simultaneously, with each invocation requiring its own cluster file.

Options

• :datacenter_id - (binary) Specify the datacenter ID that was passed to fdbserver processes running in the same datacenter as this client, for better location-aware load balancing.

• :location_cache_size - (integer) Set the size of the client location cache. Raising this value can boost performance in very large databases where clients acc ess data in a near-random pattern. Defaults to 100000.

• :machine_id - (binary) Specify the machine ID that was passed to fdbserver processes running on the same machine as this client, for better location-aware load balancing.

• :max_watches - (integer) Set the maximum number of watches allowed to be outstanding on a database connection. Increasing this number could result in increased resource usage. Reducing this number will not cancel any outstanding watches. Defaults to 10000 and cannot be larger than 1000000.

• :snapshot_ryw - (boolean) Specify whether snapshot read operations will see the results of writes done in the same transaction. Defaults to true.

• :test_causal_read_risky - (integer) Enables verification of causal read risky by checking whether clients are able to read stale data when they detect a recovery, and logging an error if so. Must be between 0 and 100 expressing the probability a client will verify it can't read stale data.

• :transaction_automatic_idempotency - (true) Set a random idempotency id for all transactions. See the transaction option description for more information. This feature is in development and not ready for general use.

• :transaction_bypass_unreadable - (true) Allows get operations to read from sections of keyspace that have become unreadable because of versionstamp operations. This sets the bypass_unreadable option of each transaction created by this database. See the transaction option description for more information.

• :transaction_causal_read_risky - (true) The read version will be committed, and usually will be the latest committed, but might not be the latest committed in the event of a simultaneous fault and misbehaving clock.

• :transaction_logging_max_field_length - (integer) Sets the maximum escaped length of key and value fields to be logged to the trace file via the :log_transaction option. This sets the :transaction_logging_max_field_length option of each transaction created by this database. See the transaction option description for more information.

• :transaction_max_retry_delay - (integer) Set the maximum amount of backoff delay incurred in the call to on_error if the error is retryable. This sets the :max_retry_delay option of each transaction created by this database. See the transaction option description for more information.

• :transaction_report_conflicting_keys - (true) Enables conflicting key reporting on all transactions, allowing them to retrieve the keys that are conflicting with other transactions.

• :transaction_retry_limit - (integer) Set a maximum number of retries after which additional calls to on_error will throw the most recently seen error code. This sets the :retry_limit option of each transaction created by this database. See the transaction option description for more information.

• :transaction_size_limit - (integer) Set the maximum transaction size in bytes. This sets the :size_limit option on each transaction created by this database. See the transaction option description for more information.

• :transaction_timeout - (integer) Set a timeout in milliseconds which, when elapsed, will cause each transaction automatically to be cancelled. This sets the :timeout option of each transaction created by this database. See the transaction option description for more information. Using this option requires that the API version is 610 or higher.

• :transaction_used_during_commit_protection_disable - (true) By default, operations that are performed on a transaction while it is being committed will not only fail themselves, but they will attempt to fail other in-flight operations (such as the commit) as well. This behavior is intended to help developers discover situations where operations could be unintentionally executed after the transaction has been reset. Setting this option removes that protection, causing only the offending operation to fail.

• :use_config_database - (true) Use configuration database.