DynamoDB Mutex

Using DynamoDB, it implements a simple semaphore that can be used to coordinate access to shared data from multiple concurrent hosts or processes.

Usage

---

.. code-block

ruby

require 'dynamodb-mutex'

DynamoDBMutex.with_lock :your_lock do
   # Access to shared resource.
end

You can pass following options to “with_lock“

.. code-block

ruby

:block  => 1    # Specify in seconds how long you want to wait for the lock to be released. (default: 1)
                # It will raise DynamoDBMutex::LockError after block timeout
:sleep  => 0.1  # Specify in seconds how long the polling interval should be when :block is given.
                # It is NOT recommended to go below 0.01. (default: 0.1)
:ttl => 10      # Specify in seconds when the lock should be considered stale when something went wrong
                # with the one who held the lock and failed to unlock. (default: 10)