链路追踪php,easyswoole链路追踪
Tracker
Easyswoole提供了一個基礎的追蹤組件，方便用戶實現基礎的服務器狀態監控，與調用鏈記錄。
組件要求
php: >=7.1.0
ext-swoole: ^4.4.0
easyswoole/component: ^2.0
安裝方法
composer require easyswoole/tracker
倉庫地址
調用鏈
Easyswoole的調用鏈跟蹤是一個以類似有序的樹狀鏈表的解構實現的，解構如下：
struct Point{
struct Point* nextPoint;
struct Point[] subPoints;
const END_SUCCESS = 'success';
const END_FAIL = 'fail';
const END_UNKNOWN = 'unknown';
int startTime;
mixed startArg;
int endTime;
string pointName;
string endStatus = self::END_UNKNOWN;
mixed endArg;
string pointId;
string parentId;
int depth = 0;
bool isNext
}
基本使用
use EasySwoole\Tracker\Point;
use EasySwoole\Component\WaitGroup;
use EasySwoole\Tracker\PointContext;
/*
* 假設我們的調用鏈是這樣的
* onRequest ->> actionOne ->> actionOne call remote Api(1,2) ->> afterAction
*/
go(function (){
/*
* 創建入口
*/
$onRequest = new Point('onRequest');
//記錄請求參數，并模擬access log
\co::sleep(0.01);
$onRequest->setStartArg([
'requestArg' => 'requestArgxxxxxxxx',
'accessLogId'=>'logIdxxxxxxxxxx'
]);
//onRequest完成
$onRequest->end();
//進入 next actionOne
$actionOne = $onRequest->next('actionOne');
//action one 進入子環節調用
$waitGroup = new WaitGroup();
//sub pointOne
$waitGroup->add();
$subOne = $actionOne->appendChild('subOne');
go(function ()use($subOne,$waitGroup){
\co::sleep(0.1);
$subOne->end();
$waitGroup->done();
});
//sub pointTwo,并假設失敗
$waitGroup->add();
$subTwo = $actionOne->appendChild('subTwo');
go(function ()use($subTwo,$waitGroup){
\co::sleep(1);
$subTwo->end($subTwo::END_FAIL,['failMsg'=>'timeout']);
$waitGroup->done();
});
$waitGroup->wait();
$actionOne->end();
//actionOne結束，進入afterAction
$afterAction = $actionOne->next('afterAction');
//模擬響應記錄
\co::sleep(0.01);
$afterAction->end($afterAction::END_SUCCESS,['log'=>'success']);
/*
* 從入口開始打印調用鏈
*/
echo Point::toString($onRequest);
});
//以上代碼等價于如下
go(function (){
PointContext::getInstance()->createStart('onRequest')->next('actionOne')->next('afterAction');
//記錄請求參數，并模擬access log
\co::sleep(0.01);
PointContext::getInstance()->find('onRequest')->setStartArg([
'requestArg' => 'requestArgxxxxxxxx',
'accessLogId'=>'logIdxxxxxxxxxx'
])->end();
$subOne = PointContext::getInstance()->find('actionOne')->appendChild('subOne');
$subTwo = PointContext::getInstance()->find('actionOne')->appendChild('subTwo');
$waitGroup = new WaitGroup();
$waitGroup->add();
go(function ()use($subOne,$waitGroup){
\co::sleep(0.1);
$subOne->end();
$waitGroup->done();
});
//sub pointTwo,并假設失敗
$waitGroup->add();
go(function ()use($subTwo,$waitGroup){
\co::sleep(1);
$subTwo->end($subTwo::END_FAIL,['failMsg'=>'timeout']);
$waitGroup->done();
});
$waitGroup->wait();
PointContext::getInstance()->find('actionOne')->end();
//模擬響應記錄
\co::sleep(0.01);
PointContext::getInstance()->find('afterAction')->end(Point::END_SUCCESS,['log'=>'success']);
/*
* 從入口開始打印調用鏈
*/
echo Point::toString(PointContext::getInstance()->startPoint());
});
以上代碼輸出結果：
#
PointName:onRequest
Status:success
PointId:AoRVFMgrsbNwukBZc7
Depth:0
IsNext:false
Start:1561736477.2808
StartArg:{"requestArg":"requestArgxxxxxxxx","accessLogId":"logIdxxxxxxxxxx"}
End:1561736477.2939
EndArg:null
ChildCount:0
Children:None
NextPoint:
#
PointName:actionOne
Status:success
PointId:2zOWG1SvMbyBcnRmje
Depth:0
IsNext:true
Start:1561736477.2809
StartArg:null
End:1561736478.2993
EndArg:null
ChildCount:2
Children:
#
PointName:subOne
Status:success
PointId:0wU31l8brpfCnXdTxH
Depth:1
IsNext:false
Start:1561736477.2939
StartArg:null
End:1561736477.4006
EndArg:null
ChildCount:0
Children:None
NextPoint:None
#
PointName:subTwo
Status:fail
PointId:Jphr6RD8KSHmYbt70A
Depth:1
IsNext:false
Start:1561736477.2939
StartArg:null
End:1561736478.2993
EndArg:{"failMsg":"timeout"}
ChildCount:0
Children:None
NextPoint:None
NextPoint:
#
PointName:afterAction
Status:success
PointId:oPnGNrkj6qwb381BQl
Depth:0
IsNext:true
Start:1561736477.2809
StartArg:null
End:1561736478.3119
EndArg:{"log":"success"}
ChildCount:0
Children:None
NextPoint:None
如果想以自己的格式記錄到數據庫，可以具體查看Point實現的方法，每個Point都有自己的Id
進階使用
HTTP API請求追蹤
EasySwooleEvent.php
namespace EasySwoole\EasySwoole;
use EasySwoole\EasySwoole\Swoole\EventRegister;
use EasySwoole\EasySwoole\AbstractInterface\Event;
use EasySwoole\Http\Request;
use EasySwoole\Http\Response;
use EasySwoole\Tracker\Point;
use EasySwoole\Tracker\PointContext;
class EasySwooleEvent implements Event
{
public static function initialize()
{
// TODO: Implement initialize() method.
date_default_timezone_set('Asia/Shanghai');
}
public static function mainServerCreate(EventRegister $register)
{
}
public static function onRequest(Request $request, Response $response): bool
{
$point = PointContext::getInstance()->createStart('onRequest');
$point->setStartArg([
'uri'=>$request->getUri()->__toString(),
'get'=>$request->getQueryParams()
]);
return true;
}
public static function afterRequest(Request $request, Response $response): void
{
$point = PointContext::getInstance()->startPoint();
$point->end();
echo Point::toString($point);
$array = Point::toArray($point);
}
}
Index.php
namespace App\HttpController;
use EasySwoole\Component\WaitGroup;
use EasySwoole\Http\AbstractInterface\Controller;
use EasySwoole\Tracker\PointContext;
class Index extends Controller
{
protected function onRequest(?string $action): ?bool
{
/*
* 調用關系 HttpRequest->OnRequest
*/
$point = PointContext::getInstance()->next('ControllerOnRequest');
//假設這里進行了權限驗證，并模擬數據庫耗時
\co::sleep(0.01);
$point->setEndArg([
'userId'=>'xxxxxxxxxxx'
]);
$point->end();
return true;
}
function index()
{
//模擬調用第三方Api,調用關系 OnRequest->sub(subApi1,subApi2)
$actionPoint = PointContext::getInstance()->next('indexAction');
$wait = new WaitGroup();
$subApi = $actionPoint->appendChild('subOne');
$wait->add();
go(function ()use($wait,$subApi){
\co::sleep(1);
$subApi->end();
$wait->done();
});
$subApi = $actionPoint->appendChild('subTwo');
$wait->add();
go(function ()use($wait,$subApi){
\co::sleep(0.3);
$subApi->end($subApi::END_FAIL);
$wait->done();
});
$wait->wait();
$actionPoint->end();
$this->response()->write('hello world');
}
}
以上每次請求會輸出如下格式：
#
PointName:onRequest
Status:success
PointId:1561743038GyV4lnus
ParentId:
Depth:0
IsNext:false
Start:1561743038.7011
StartArg:{"uri":"http://127.0.0.1:9501/","get":[]}
End:1561743039.7152
EndArg:null
ChildCount:0
Children:None
NextPoint:
#
PointName:ControllerOnRequest
Status:success
PointId:15617430386f0OQDsS
ParentId:1561743038GyV4lnus
Depth:0
IsNext:true
Start:1561743038.7025
StartArg:null
End:1561743038.713
EndArg:null
ChildCount:0
Children:None
NextPoint:
#
PointName:indexAction
Status:success
PointId:1561743038XEmF0M49
ParentId:15617430386f0OQDsS
Depth:0
IsNext:true
Start:1561743038.7131
StartArg:null
End:1561743039.7151
EndArg:null
ChildCount:2
Children:
#
PointName:subOne
Status:success
PointId:1561743038uIkzYgcS
ParentId:1561743038XEmF0M49
Depth:1
IsNext:false
Start:1561743038.7135
StartArg:null
End:1561743039.7151
EndArg:null
ChildCount:0
Children:None
NextPoint:None
#
PointName:subTwo
Status:fail
PointId:1561743038PslVSY4n
ParentId:1561743038XEmF0M49
Depth:1
IsNext:false
Start:1561743038.7136
StartArg:null
End:1561743039.0149
EndArg:null
ChildCount:0
Children:None
NextPoint:None
NextPoint:None
Api調用鏈記錄
$array = Point::toArray($point);
可以把一個入口點轉為一個數組。例如我們可以在MYSQL數據庫中存儲以下關鍵結構：
CREATE TABLE `api_tracker_point_list` (
`pointd` varchar(18) NOT NULL,
`pointName` varchar(45) DEFAULT NULL,
`parentId` varchar(18) DEFAULT NULL,
`depth` int(11) NOT NULL DEFAULT '0',
`isNext` int(11) NOT NULL DEFAULT '0',
`startTime` varchar(14) NOT NULL,
`endTime` varchar(14) DEFAULT NULL,
`status` varchar(10) NOT NULL,
PRIMARY KEY (`pointd`),
UNIQUE KEY `trackerId_UNIQUE` (`pointd`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
其余請求參數可以自己記錄。
核心字段在pointId，parentId與isNext，status 這四個個字段,例如，我想得到哪次調用鏈超時，那么就是直接
where status = fail
如果想看哪次調用耗時多少，那么可以
where spendTime > 3
spendTime 是用startTime和endTime計算
相關倉庫
EasySwoole之鏈路追蹤 簡單demo
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