Websocket 静默检查后超时的Gatling 3.4错误

我在websocket静默检查中体验到一种非常奇怪的Gatling行为： .await（600秒）（检查）在几毫秒后超时失败

首先我解释我的情况。Gatling websocket的限制不允许处理来自服务器的ping请求。所以我不得不作弊并发明了一个奇特的协议。带注释的代码如下：

客户端可以发送初始事件或非初始事件（不是序列中的第一个）

初始事件之间的最小间隔为3秒

客户端初始化的每个请求都会产生两个响应：“计算已启动”和“计算结果”

来自服务器的ping请求可能随时出现。当我们在客户端事件之间暂停时，仍然可能会收到ping请求

当我们收到ping请求时，我们必须响应

通常的事件顺序不依赖于ping，因此如果ping到达，那么我们必须等待另一条消息

对每条消息的检查是相同的。克隆它是因为我想在日志中查看哪个具体检查已超时：

val checkX = ws.checkTextMessage("myCheckX")
        .matching(jsonPath(matchingCondition).exists)
          jsonPath("$.body.data.nextActions[0]").optional.saveAs(ATTR_NEXT_ACTION),
        ).check(regex("\"cId\":(.*?),(\"name\":\"Ping\")").optional.saveAs(ATTR_PING_SEQ_ID))

实际信息非常简单：

val clientActionBuilder = ws("requestClientAction").sendText(
        """{
          |   "header":
          |   {
          |     "name": "Action",
          |     "cId": ${cId},
          |     "dType": 2
          |   },
          |   "body":
          |   {
          |     "type": "@TYPE@",
          |     "seqId":${seqId},
          |     "data":{
          |      }
          |   }
          |}
    """.stripMargin.replaceAll("[\\s\n\r]", "").replace("@TYPE@", eventType)
      )

val pongBuilder = ws("requestPong").sendText(
        """{
          |   "header":
          |   {
          |     "name": "Ping",
          |     "cId": ${pingSeqId},
          |     "dType": 1
          |   },
          |   "body": {}
          |}
      """.stripMargin.replaceAll("[\\s\n\r]", "")
      )

客户端操作在循环中发送，直到超时：

asLongAs(
      session =>
        !timeoutIsOver(startTime, testDurationMillis)
    ) {
    exec(doClientAction())

}

在ping请求从服务器发出之前，逻辑按预期工作。之后，ws-Wait超时中断。以下是我在日志中看到的内容：

DUMP---> The client action: event=INITIAL_EVENT oneRound=false
DUMP---> Sending CLIENT_INITIAL_EVENT and expect 2 or 3 responses. wait for each response for 600 seconds
20:33:18.772 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"Action","cId":103,"dType":2},"body":{}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:18.773 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestClientAction {"header":{"name":"Action","cId":103,"dType":2},"body":{}}
20:33:18.773 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 164, cap: 512))
20:33:18.773 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=164
20:33:18.773 [DEBUG] i.g.h.a.w.f.WsIdleState - Trigger check after sending text frame
20:33:18.787 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:18.787 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=80
20:33:18.787 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 80, cap: 80))
20:33:18.788 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":103,"name":"ClientAction","code":1,"dType":2}}
20:33:18.789 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:18.789 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence
20:33:19.233 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:19.233 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=1480
20:33:19.233 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 1480, cap: 1480))
20:33:19.235 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":37,"name":"ClientEvent","dType":2,"dId":1270},"body":{...}}
20:33:19.237 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:19.238 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence
20:33:20.871 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:20.871 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=65
20:33:20.871 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 65, cap: 65))
20:33:20.872 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":38,"name":"Ping","dType":2}}
20:33:20.872 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:20.872 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check sequences completed successfully
DUMP---> 2 or 3 responses got
DUMP---> Sending PONG for CLIENT_INITIAL_EVENT
20:33:20.873 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"Ping","cId":38,"dType":1},"body":{}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:20.873 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestPong {"header":{"name":"Ping","cId":38,"dType":1},"body":{}}
20:33:20.873 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 65, cap: 256))
20:33:20.873 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=65

....

20:33:20.876 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"ClientAction","cId":104,"dType":2},"body":{"type":"NON-INITIAL_CLIENT_EVENT","seqId":304,"data":{...}}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:20.876 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestClientAction {"header":{"name":"CLientAction","cId":104,"dType":2},"body":{"type":"NON-INITIAL_CLIENT_EVENT","seqId":304,"data":{...}}}
20:33:20.876 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 167, cap: 512))
20:33:20.876 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=167
20:33:20.877 [DEBUG] i.g.h.a.w.f.WsIdleState - Trigger check after sending text frame
20:33:20.897 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:20.897 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=81
20:33:20.897 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 81, cap: 81))
20:33:20.898 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":104,"name":"ClientAction","code":1,"dType":2}}
20:33:20.899 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:20.899 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence

....

20:33:21.535 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:21.535 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=2275
20:33:21.535 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 2275, cap: 2275))
20:33:21.537 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":39,"name":"ClientEvent","dType":2},"body":{...}}
20:33:21.540 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:21.540 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check sequences completed successfully
DUMP---> NON-INITIAL_CLIENT_EVENT 2 responses got

....

DUMP---> Sending CLIENT_INITIAL_EVENT and expect 2 or 3 responses. wait for each response for 600 seconds
20:33:21.542 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"ClientAction","cId":105,"dType":2},"body":{...}}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:21.542 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestClientAction {"header":{"name":"ClientAction","cId":105,"dType":2},"body":{...}}}
20:33:21.542 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 164, cap: 512))
20:33:21.542 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=164
20:33:21.543 [DEBUG] i.g.h.a.w.f.WsIdleState - Trigger check after sending text frame
20:33:21.558 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:21.559 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=81
20:33:21.559 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 81, cap: 81))
20:33:21.560 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":,"cId":105,"name":"ClientAction","code":1,"dType":2}}
20:33:21.560 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:21.561 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence
20:33:21.742 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check timeout
20:33:21.743 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check timeout, failing it and performing next action
DUMP---> 2 or 3 responses got
20:33:21.744 [DEBUG] i.g.c.a.Exit - End user #1
20:33:21.748 [DEBUG] i.g.c.c.i.Injector - End user #doUntilTimeout
20:33:21.748 [INFO ] i.g.c.c.i.Injector - All users of scenario doUntilTimeout are stopped
20:33:21.749 [INFO ] i.g.c.c.i.Injector - Stopping
20:33:21.749 [INFO ] i.g.c.c.Controller - Injector has stopped, initiating graceful stop

我在20:33:21.560收到来自web套接字的第一条消息 然后，第二个“等待”开始了。它应该在600秒后超时， 但事实上，我在20:33:21.743看到超时

我看起来像盖特林的一只虫子。类似于超时属性重置为零

提前谢谢！

---

安德烈

似乎多重“等待”是不稳定的。他们随机错过了第二条消息。有时我甚至看不到第二个“等待”Hi中的“执行下一个检查序列”日志。Github上的bug跟踪器比StackOverFlow更适合报告bug：你能在我们的bug跟踪器上打开一张罚单吗？你好，Stephane！当然，我会在github中提交一个bug。但是在gatling3.3.1中是否可以忽略超时？例如，我正在等待一条“非强制性”消息，它可能会出现，但可能不会出现。这两个案例都必须成功。据我所知，在Gatling3.4中添加了无声websocket功能。

DUMP---> The client action: event=INITIAL_EVENT oneRound=false
DUMP---> Sending CLIENT_INITIAL_EVENT and expect 2 or 3 responses. wait for each response for 600 seconds
20:33:18.772 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"Action","cId":103,"dType":2},"body":{}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:18.773 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestClientAction {"header":{"name":"Action","cId":103,"dType":2},"body":{}}
20:33:18.773 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 164, cap: 512))
20:33:18.773 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=164
20:33:18.773 [DEBUG] i.g.h.a.w.f.WsIdleState - Trigger check after sending text frame
20:33:18.787 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:18.787 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=80
20:33:18.787 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 80, cap: 80))
20:33:18.788 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":103,"name":"ClientAction","code":1,"dType":2}}
20:33:18.789 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:18.789 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence
20:33:19.233 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:19.233 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=1480
20:33:19.233 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 1480, cap: 1480))
20:33:19.235 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":37,"name":"ClientEvent","dType":2,"dId":1270},"body":{...}}
20:33:19.237 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:19.238 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence
20:33:20.871 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:20.871 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=65
20:33:20.871 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 65, cap: 65))
20:33:20.872 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":38,"name":"Ping","dType":2}}
20:33:20.872 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:20.872 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check sequences completed successfully
DUMP---> 2 or 3 responses got
DUMP---> Sending PONG for CLIENT_INITIAL_EVENT
20:33:20.873 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"Ping","cId":38,"dType":1},"body":{}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:20.873 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestPong {"header":{"name":"Ping","cId":38,"dType":1},"body":{}}
20:33:20.873 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 65, cap: 256))
20:33:20.873 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=65

....

20:33:20.876 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"ClientAction","cId":104,"dType":2},"body":{"type":"NON-INITIAL_CLIENT_EVENT","seqId":304,"data":{...}}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:20.876 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestClientAction {"header":{"name":"CLientAction","cId":104,"dType":2},"body":{"type":"NON-INITIAL_CLIENT_EVENT","seqId":304,"data":{...}}}
20:33:20.876 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 167, cap: 512))
20:33:20.876 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=167
20:33:20.877 [DEBUG] i.g.h.a.w.f.WsIdleState - Trigger check after sending text frame
20:33:20.897 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:20.897 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=81
20:33:20.897 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 81, cap: 81))
20:33:20.898 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":104,"name":"ClientAction","code":1,"dType":2}}
20:33:20.899 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:20.899 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence

....

20:33:21.535 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:21.535 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=2275
20:33:21.535 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 2275, cap: 2275))
20:33:21.537 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":{"cId":39,"name":"ClientEvent","dType":2},"body":{...}}
20:33:21.540 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:21.540 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check sequences completed successfully
DUMP---> NON-INITIAL_CLIENT_EVENT 2 responses got

....

DUMP---> Sending CLIENT_INITIAL_EVENT and expect 2 or 3 responses. wait for each response for 600 seconds
20:33:21.542 [INFO ] i.g.h.a.w.WsSendTextFrame - Sending text frame {"header":{"name":"ClientAction","cId":105,"dType":2},"body":{...}}} with websocket 'gatling.http.webSocket': Scenario 'doUntilTimeout', UserId #1
20:33:21.542 [DEBUG] i.g.h.a.w.f.WsIdleState - Send text frame requestClientAction {"header":{"name":"ClientAction","cId":105,"dType":2},"body":{...}}}
20:33:21.542 [DEBUG] i.g.h.c.i.WebSocketHandler - ctx.write msg=TextWebSocketFrame(data: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 164, cap: 512))
20:33:21.542 [TRACE] i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=1 length=164
20:33:21.543 [DEBUG] i.g.h.a.w.f.WsIdleState - Trigger check after sending text frame
20:33:21.558 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=1
20:33:21.559 [TRACE] i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=81
20:33:21.559 [DEBUG] i.g.h.c.i.WebSocketHandler - Read msg=TextWebSocketFrame(data: PooledUnsafeDirectByteBuf(ridx: 0, widx: 81, cap: 81))
20:33:21.560 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Received matching message {"header":,"cId":105,"name":"ClientAction","code":1,"dType":2}}
20:33:21.560 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Current check success
20:33:21.561 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Perform next check sequence
20:33:21.742 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check timeout
20:33:21.743 [DEBUG] i.g.h.a.w.f.WsPerformingCheckState - Check timeout, failing it and performing next action
DUMP---> 2 or 3 responses got
20:33:21.744 [DEBUG] i.g.c.a.Exit - End user #1
20:33:21.748 [DEBUG] i.g.c.c.i.Injector - End user #doUntilTimeout
20:33:21.748 [INFO ] i.g.c.c.i.Injector - All users of scenario doUntilTimeout are stopped
20:33:21.749 [INFO ] i.g.c.c.i.Injector - Stopping
20:33:21.749 [INFO ] i.g.c.c.Controller - Injector has stopped, initiating graceful stop