Microphite
Overview
Microphite is a tiny and fast, asynchronous Graphite client. It can be called many times per second with minimal overhead. It is synchronized internally and can be shared across threads. Both tcp and udp connections are supported.
Microphite has been in use in production by a BZ technology client for quite some time without issue.
Usage
Construct a standard socket client. See the 'Client Options' section below for initializer options.
client = Microphite.client(
host: 'graphite.host',
port: 2003,
transport: :udp,
prefix: 'app.prefix.')
Construct a client with an error_handler. The client is fault tolerant, but an error_handler is useful for logging connection failures.
handler = Proc.new { |error| Rails.logger.error "Microphite error: #{error.message}" }
client = Microphite.client(host: '...', error_handler: handler)
Construct a no-op/dummy client. This is useful in development. You can leave client API calls in-place and the dummy client will behave appropriately.
# Initializer options are accepted, but no data is written
client = Microphite.noop(host: 'host', ...)
Send data points
client.write('some.key': 300, 'another.key': 25)
Accumulate counters (flushed every :flush_interval seconds)
client.gather('some.counter': 22, 'another.counter': 10)
Time a code block, gathering to timing.task
client.time('timing.task') do
task
end
Execute-around for writes and gathers -- Send data unless a block throws. The block's return value is preserved.
client.write(accurate_data: 42) do
something_that_may_throw()
end
client.gather(accurate_data: 42) do
something_else_that_throws()
end
Easy prefixing
client.prefix('p1.') do |p1|
# Write to p1.key
app.write(key: 42)
p1.prefix('p2.') do |p2|
# Write to p1.p2.key
p2.write(key: 5)
end
end
Close the client, waiting for data to flush
client.close
Alternatively, wait at most 1 second to flush
flushed = client.close(1)
Client Options
Key | Type | Description | Default |
---|---|---|---|
:host | String | Graphite server host (REQUIRED) | nil |
:port | Integer | Graphite port | 2003 |
:transport | Symbol | Graphite transport to use (:tcp or :udp) | :udp |
:prefix | String/Symbol | Global prefix for all keys | '' |
:flush_interval | Numeric | How often to flush gathered data (in seconds) | 1.0 |
:limit | Integer | Limit the write and gather stacks to this size | 1000000 |
:min_delay | Numeric | Initial delay between retry attempts after failure (in seconds) | 2 |
:max_delay | Numeric | Maximum delay between retry attempts after failure (in seconds) | 60 |
:error_handler | Proc | Code block called on exception (takes a single exception param) | nil |
License
The MIT License (MIT)
Copyright (c) 2013 BZ Technology Services, LLC
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.