README
¶
yab 
======
yab (Yet Another Benchmarker) is tool to benchmark YARPC services. It currently
supports making Thrift requests to both HTTP and TChannel services.
yab is currently in beta status.
Installing
If you have go installed, simply run the following to install the latest version:
go get -u -f github.com/yarpc/yab
This will install yab to $GOPATH/bin/yab.
Optionally, you can get precompiled binaries from Releases.
Usage
Usage:
yab [<service> <method> <body>] [OPTIONS]
yab is a benchmarking tool for TChannel and HTTP applications. It's primarily
intended for Thrift applications but supports other encodings like JSON and
binary (raw). It can be used in a curl-like fashion when benchmarking features
are disabled.
Application Options:
--version Displays the application version
Request Options:
-e, --encoding= The encoding of the data, options are: Thrift,
JSON, raw. Defaults to Thrift if the method
contains '::' or a Thrift file is specified
-t, --thrift= Path of the .thrift file
-m, --method= The full Thrift method name (Svc::Method) to
invoke
-r, --request= The request body, in JSON or YAML format
-f, --file= Path of a file containing the request body in
JSON or YAML
--headers= The headers in JSON or YAML format
--headers-file= Path of a file containing the headers in JSON
or YAML
--health Hit the health endpoint, Meta::health
--timeout= The timeout for each request. E.g., 100ms,
0.5s, 1s. If no unit is specified,
milliseconds are assumed. (default: 1s)
--disable-thrift-envelope Disables Thrift envelopes (disabled by default
for TChannel)
--multiplexed-thrift Enables the Thrift TMultiplexedProtocol used
by services that host multiple Thrift services
on a single endpoint.
Transport Options:
-s, --service= The TChannel/Hyperbahn service name
-p, --peer= The host:port of the service to call
-P, --peer-list= Path of a JSON or YAML file containing a list
of host:ports
--caller= Caller will override the default caller name
(which is yab-$USER).
--topt= Custom options for the specific transport
being used
Benchmark Options:
-n, --max-requests= The maximum number of requests to make
(default: 1000000)
-d, --max-duration= The maximum amount of time to run the
benchmark for (default: 0s)
--cpus= The number of OS threads
--connections= The number of TCP connections to use
--warmup= The number of requests to make to warmup each
connection (default: 10)
--concurrency= The number of concurrent calls per connection
(default: 1)
--rps= Limit on the number of requests per second.
The default (0) is no limit. (default: 0)
--statsd= Optional host:port of a StatsD server to
report metrics
Help Options:
-h, --help Show this help message
Making a single request
The following examples assume that the Thrift service running looks like:
service KeyValue {
string get(1: string key)
}
If a TChannel service was running with name keyvalue on localhost:12345, you can
make a call to the get method by running:
yab -t ~/keyvalue.thrift -p localhost:12345 keyvalue KeyValue::get -r '{"key": "hello"}'
This specifies a single host:port using -p, but you can also specify multiple peers
by passing the -p flag multiple times:
yab -t ~/keyvalue.thrift -p localhost:12345 -p localhost:12346 keyvalue KeyValue::get -r '{"key": "hello"}'
If you have a file containing a list of host:ports (either JSON or new line separated), you can
specify the file using -P:
yab -t ~/keyvalue.thrift -P ~/hosts.json keyvalue KeyValue::get -r '{"key": "hello"}'
yab also supports HTTP, instead of the peer being a single host:port, you would use a URL:
yab -t ~/keyvalue.thrift -p "http://localhost:8080/rpc" keyvalue KeyValue::get -r '{"key": "hello"}'
Benchmarking
To benchmark an endpoint, you need all the command line arguments to describe the request,
followed by benchmarking options. You need to set at least --maxDuration (or -d) to
set the maximum amount of time to run the benchmark.
You can set values such as 3s for 3 seconds, or 1m for 1 minute. Valid time units are:
msfor millisecondssfor secondsmfor minutes.
You can also control rate limit the benchmark (--rps), or customize the number of
connections (--connections) or control the amount of concurrent calls per
connection (--concurrency).
yab -t ~/keyvalue.thrift -p localhost:12345 keyvalue KeyValue::get -r '{"key": "hello"}' -d 5s --rps 100 --connections 4
Documentation
¶
Overview ¶
yab is a benchmarking tool for TChannel and HTTP applications. It's primarily intended for Thrift applications but supports other encodings like JSON and binary (raw).
It can be used in a curl-like fashion when benchmarking features are disabled.
For usage information, check out the man page: http://yarpc.github.io/yab/man.html
Source Files
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Directories
¶
| Path | Synopsis |
|---|---|
|
internal
|
|
|
thrifttest
Package thrifttest contains utilities to help test THrift serialization.
|
Package thrifttest contains utilities to help test THrift serialization. |
|
Package sorted contains sort related utilities.
|
Package sorted contains sort related utilities. |
|
Package thrift contains functionality for converting generic data structures to and from Thrift payloads.
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Package thrift contains functionality for converting generic data structures to and from Thrift payloads. |