Exception: Cassandra::Errors::UnavailableError

Inherits:

StandardError

• Object
• StandardError
• Cassandra::Errors::UnavailableError

Includes:

ExecutionError

Defined in:

lib/cassandra/errors.rb

Overview

Note:

This error can be handled by a Retry::Policy to determine the desired outcome.

Raised when coordinator determines that a request cannot be executed because there are not enough replicas. In this scenario, the request is not sent to the nodes at all.

See Also:

• Description of Unavailable Error in Apache Cassandra native protocol spec v1

Instance Attribute Summary

• #alive ⇒ Integer readonly

  The number of replicas available for the request.

• #consistency ⇒ Symbol readonly

  Consistency level that triggered the error.

• #required ⇒ Integer readonly

  The number of replicas required to achieve requested consistency level.

Method Summary

Methods included from ExecutionError

#execution_info

Instance Attribute Details

#alive ⇒ Integer (readonly)

# File 'lib/cassandra/errors.rb', line 174

def alive
  @alive
end

#consistency ⇒ Symbol (readonly)

Consistency level that triggered the error.

# File 'lib/cassandra/errors.rb', line 167

def consistency
  @consistency
end

#required ⇒ Integer (readonly)

# File 'lib/cassandra/errors.rb', line 171

def required
  @required
end