Class: Cassandra

Inherits:
Object
  • Object
show all
Defined in:
lib/cassandra.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config_file, disk_threshold, logger) ⇒ Cassandra

Returns a new instance of Cassandra.


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# File 'lib/cassandra.rb', line 8

def initialize(config_file, disk_threshold, logger)
  @logger = logger

  read_config_file(config_file)

  @node_name = Socket.gethostname

  @logger.info("Cassandra cluster name = #{@cluster_name}")
  @logger.info("Cassandra node name = #{@node_name}")
  @logger.info("Cassandra data path = #{@data_path}")

  @disk_threshold = disk_threshold
end

Instance Attribute Details

#cluster_name ⇒ Object (readonly)

Returns the value of attribute cluster_name.


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# File 'lib/cassandra.rb', line 6

def cluster_name
  @cluster_name
end

#data_path ⇒ Object (readonly)

Returns the value of attribute data_path.


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# File 'lib/cassandra.rb', line 6

def data_path
  @data_path
end

#node_name ⇒ Object (readonly)

Returns the value of attribute node_name.


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# File 'lib/cassandra.rb', line 6

def node_name
  @node_name
end

Instance Method Details

#delete_snapshot(_snapshot) ⇒ Object 


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# File 'lib/cassandra.rb', line 132

def delete_snapshot(_snapshot)
  snapname = 'cass_snap'
  nodetool_clearsnapshot(snapname)
end

#new_snapshot ⇒ Object 


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# File 'lib/cassandra.rb', line 122

def new_snapshot
  today = Time.new.strftime('%Y_%m_%d')
  snapname = 'cass_snap'

  nodetool_snapshot(snapname)
  metadata = build_metadata(snapname)

  CassandraSnapshot.new(@cluster_name, @node_name, today, metadata)
end