storage

Documentation

Overview

Package storage implements banshee's persistence storage.

Structure

Storage handles 4 kinds of data: index, metric, event and admin, the directory structure is:

storage/
    |--index/               --- Metric index          LevelDB
    |--metric/              --- Metric data           LevelDB
    |--admin                --- Rules/Users/Projects  SQLite3
    |- event/               --- Event                 SQLite3

The storage directory will be created if not exists.

For each child database, see its package's documentation for more.

Index

• type DB
  • func Open(fileName string, opts *Options) (*DB, error)
  • func (db *DB) Close() error
• type Options

Types

type DB

type DB struct {
	// Child db
	Admin  *admindb.DB
	Index  *indexdb.DB
	Metric *metricdb.DB
	Event  *eventdb.DB
}

DB handles the storage on leveldb.

func Open

func Open(fileName string, opts *Options) (*DB, error)

Open a DB by fileName and options.

func (*DB) Close

func (db *DB) Close() error

Close a DB.

type Options

type Options struct {
	Period       uint32
	Expiration   uint32
	FilterOffset float64
}

Options is to open DB.