问题
go thrift开发过程中,多个goroutine共用一个client时，报错：
panic: runtime error: index out of range
goroutine 24 [running]:
happy-apple/vendor/git.apache.org/thrift.git/lib/go/thrift.(TCompactProtocol).WriteStructEnd(0xc4201086e0, 0x0, 0x0)
/home/admin/workspace/src/happy-apple/vendor/git.apache.org/thrift.git/lib/go/thrift/compact_protocol.go:160 +0x66
happy-apple/protocol/falconeye.(TAppleMetric).Write(0xc420112090, 0x787020, 0xc4201086e0, 0x0, 0x0)
/home/admin/workspace/src/happy-apple/protocol/falconeye/common.go:1714 +0xb9
happy-apple/protocol/falconeye.(ReportPutMetricDataArgs).writeField1(0xc4200f85a0, 0x787020, 0xc4201086e0, 0x0, 0x0)
/home/admin/workspace/src/happy-apple/protocol/falconeye/report.go:308 +0x123
happy-apple/protocol/falconeye.(ReportPutMetricDataArgs).Write(0xc4200f85a0, 0x787020, 0xc4201086e0, 0x200000001, 0x0)
/home/admin/workspace/src/happy-apple/protocol/falconeye/report.go:292 +0x195
happy-apple/protocol/falconeye.(ReportClient).sendPutMetricData(0xc420094320, 0xc4200aa040, 0x1, 0x1, 0x1, 0xc420112090)
/home/admin/workspace/src/happy-apple/protocol/falconeye/report.go:70 +0xe9
happy-apple/protocol/falconeye.(ReportClient).PutMetricData(0xc420094320, 0xc4200aa040, 0x1, 0x1, 0x1, 0xc4200aa040, 0x0)
/home/admin/workspace/src/happy-apple/protocol/falconeye/report.go:53 +0x4d
main.TestSendData(0xc420094320, 0x0, 0x0)
/home/admin/workspace/src/happy-apple/protocol/falconeye/report-remote/qps_client.go:116 +0x2c9
main.sendTask(0xc420094320)
/home/admin/workspace/src/happy-apple/protocol/falconeye/report-remote/qps_client.go:71 +0x2b
created by main.main
/home/admin/workspace/src/happy-apple/protocol/falconeye/report-remote/qps_client.go:47 +0x17b
使用的lib是git.apache.org/thrift.git/lib/go
原因及解决办法：
一个thrift client 不支持多个协程routine同时使用.
可创建多个client，每个协程routine一个client