add statsd parsing benchmarks

fixes #1764

closes #1530

closes #1728

closes #1733

closes #1738

* separate hello and authenticate functions, force connection close at end of write cycle so we don't hold open idle connections, which has the benefit of mostly removing the chance of getting hopelessly connection lost

* update changelog, though this will need to be updated again to merge into telegraf master

* bump instrumental agent version

* fix test to deal with better better connect/reconnect logic and changed ident & auth handshake

* Update CHANGELOG.md

correct URL from instrumental fork to origin and put the change in the correct part of the file

* go fmt

* Split out Instrumental tests for invalid metric and value.

* Ensure nothing remains on the wire after final test.

* Force valid metric names by replacing invalid parts with underscores.

* Multiple invalid characters being joined into a single udnerscore.

* Adjust comment to what happens.

* undo split hello and auth commands, to reduce roundtrips

* Add ignored_databases option to postgresql configuration files, to enable easy filtering of system databases without needing to whitelist all the databases on the server.  Add tests for database whitelist and blacklist.

* run go fmt on new postgresql database whitelist/blacklist code

* add postgresql database blacklist option to changelog

* remove a bad merge from the changelog

also remove locking around adding metrics. Instead, keep a waitgroup on
the ServeHTTP function and wait for that to finish before returning from
the Stop() function

closes #1407

fix incredibly stupid bugs

populate README

support query endpoint and change default listen port

set response headers for query endpoint

add unit tests

revert erroneous Godeps change

add plugin ref to top-level README

remove debug output and add empty post body test

fix linter errors

move stoppableListener into repo

use constants for http status codes

add CHANGELOG entry

address code review comments re. style/structure

address further code review comments

add note to README re. database creation calls per PR comments

closes #1628

Added NATS server container needed for tests.

Added NATS output plug-in. Fixes #1487

NATS output plug-in use internal.GetTLSConfig to instrument TLS configuration.

Added NATS output plug-in to changelog.

closes #1487
closes #1697

closes #1628

* add server hostname for each docker measurements

* update CHANGELOG

* move feature to v1.1

* tweak docker_engine_host tag

started working on this with the idea of fixing #1623, although I
realized that this was actually just a documentation issue around
a toml eccentricity.

closes #1623

* Handle negative integers coming as unsigned integers from Aerospike stats

* skip values with overflow

* aerospike stat values parsing tests

* better tests

and utilize them in the in the 'system' input plugins.

And use them in the prometheus output plugin.

Still need to test the prometheus output plugin.

Also need to actually create typed metrics in the system plugins.

closes #1683

closes #1695

closes #1542

Generalize event.

Add doc.

Update default config.

Add filestack to the list of plugins.

Check that video conversion event returns 400.

Update the readme.

Update the changelog.

The iptables plugin aims at monitoring bytes and packet counters
matching a given set of iptables rules.

Typically the user would set a dedicated monitoring chain into a given
iptables table, and add the rules to monitor to this chain. The plugin
will allow to focus on the counters for this particular table/chain.

closes #1471

Added the option removecr to inputs.exec to remove all carraige returns
(CR, ASCII 0x0D, Unicode codepoint \u0D, ^M). The option is boolean and
not enabled if not present in the config file.

closes #1606

Updated CHANGELOG.md with information about removecr

Ran go fmt ./...

Moved removal of CRs to internal/internal.go

Moved the code to remove carriage returns from
plugins/inputs/exec/exec.go to internal/internal.go. Additionally
changed the conditional on which it gets applied from using a
configuration file option to checking if it is running on Windows.

Moved Carriage Return check to correct place

Moved the carriage return removal back to the exec plugin. Added unit
testing for it. Fixed a bug (removing too many characters).

Ran go fmt ./...

Reverted CHANGELOG to master

Updated Changelog

* Move CloudWatch rate limit to config
Reference #1670

* make that variable a string

* ahem, apparently limiter wants an int

* add the ratelimit to the sample config

* update the test to include the rate

* set a default value of 10 for ratelimit

* Move default ratelimit to init

closes #1539

First version of http put working

Refactored code to separate http handling from opentsdb module. Added batching support.

Fixed tag cleaning in http output and refactored telnet output.

Removed useless struct.

Fixed current unittest and added a new one.

Added benchmark test to test json serialization. Made sure http client would reuse connection.

Ran go fmt on opentsdb sources.

Updated README file

Removed useHttp in favor of parsing host string to determine the right API to use for sending metrics. Also renamed BatchSize to HttpBatchSize to better convey that it is only used when using Http API.

Updated changelog

Fixed format issues.

Removed TagSet type to make it more explicit.

Fixed unittest after removing TagSet type.

Revert "Updated changelog"

This reverts commit 24dba5520008d876b5a8d266c34a53e8805cc5f5.

Added PR under 1.1 release.

add missing redis metrics

This makes sure that all redis metrics are present without having to use a hard-coded list of what metrics to pull in.

This makes sure that all redis metrics are present without having to use a hard-coded list of what metrics to pull in.

This makes sure that all redis metrics are present without having to use a hard-coded list of what metrics to pull in.

* httpjson: support configurable response_timeout

* make default ResponseTimeout in init

* Update CHANGELOG.md