当我发出postgresql查询时，Appmetrics-dash崩溃应用程序

Question

我正在使用节点v7.2.1。

我已经使用安装appmetrics破折号： npm install appmetrics-dash

在应用程序中，我添加了一个单行，快递后：

var express = require('express'); 
var dash = require('appmetrics-dash').monitor(); 

我的应用程序启动正常，我可以看到仪表板在端口3001，但是当我发出一个查询到（PostgreSQL的）数据库，appmetrics崩溃，我的应用程序一起：

D:\Projekti\a2\app\edgar\node_modules\appmetrics-dash\node_modules\appmetrics\probes\postgres-probe.js:54 
     if(!client.__appmetricsProbeAttached__) { 
       ^

TypeError: Cannot read property '__appmetricsProbeAttached__' of null 
    at D:\Projekti\a2\app\edgar\node_modules\appmetrics-dash\node_modules\appmetrics\probes\postgres-probe.js:54:19 
    at args.(anonymous function) (D:\Projekti\a2\app\edgar\node_modules\appmetrics-dash\node_modules\appmetrics\lib\aspect.js:26:4) 
    at D:\Projekti\a2\app\edgar\node_modules\pg\lib\pool.js:81:27 
    at D:\Projekti\a2\app\edgar\node_modules\generic-pool\lib\generic-pool.js:274:11 
    at D:\Projekti\a2\app\edgar\node_modules\pg\lib\pool.js:30:28 
    at Connection.<anonymous> (D:\Projekti\a2\app\edgar\node_modules\pg\lib\client.js:176:5) 
    at emitOne (events.js:96:13) 
    at Connection.emit (events.js:188:7) 
    at Socket.<anonymous> (D:\Projekti\a2\app\edgar\node_modules\pg\lib\connection.js:59:10) 
    at emitOne (events.js:96:13) 
    at Socket.emit (events.js:188:7) 
    at emitErrorNT (net.js:1281:8) 
    at _combinedTickCallback (internal/process/next_tick.js:74:11) 
    at process._tickDomainCallback (internal/process/next_tick.js:122:9) 

Answer 1

升级p g到最新版本（6.3.0）修复了这个问题，所以我猜这毕竟不是appmetrics的错。