ArangoDB游标超时 [英] ArangoDB Cursor Timeout

问题描述

使用ArangoDB 2.3.1.看来我的光标在几分钟之内即将到期.我希望他们持续一个小时.我已经使用TTL参数设置了我的AQL查询对象，如下所示:

Using ArangoDB 2.3.1. It seems my cursors are expiring within a couple minutes. I would like them to last for an hour. I've set up my AQL query object with the TTL parameter as follows:

{
    "query": 'removed actual query',
    "count": true,
    "batchSize": 5,
    "ttl": 3600000
}

我的理解是TTL参数应该告诉服务器将服务器保持3600000毫秒或1小时.但它会在约60秒内过期.实际上，我已经尝试将TTL更改为几个不同的数字，并且它似乎没有任何作用.有什么想法吗?

My understanding is that the TTL parameter should tell the server to keep the server for 3600000 milliseconds or 1 hour. But it expires within about 60 seconds. In fact, I've tried changing the TTL to several different numbers and it doesn't seem to do anything. Any ideas?

更新:我从arango收到的实际错误是找不到光标"

UPDATE: the actual error I receive from arango is "cursor not found"

推荐答案

你们所有人都是正确的.但我认为这是2.3中的错误:

All of you are right. But I think it is a bug in 2.3:

--- a/arangod/V8Server/v8-vocbase.cpp
+++ b/arangod/V8Server/v8-vocbase.cpp
@@ -1216,13 +1216,13 @@ static v8::Handle<v8::Value> JS_ExecuteAql (v8::Arguments const& argv) {

     optionName = v8::String::New("ttl");
     if (argValue->Has(optionName)) {
-      ttl = TRI_ObjectToBoolean(argValue->Get(optionName));
+      ttl = TRI_ObjectToDouble(argValue->Get(optionName));
       ttl = (ttl <= 0.0 ? 30.0 : ttl);
     }

ttl 是双精度型，因此应将其强制转换为双精度型，而不是布尔型. 不幸的是，将布尔值分配给double值在C ++中有效，因此编译器没有抱怨.

ttl is a double and so it should be casted to a double, not a bool. Unfortunately, assigning a bool to a double is valid in C++ so the compiler hasn't complained.

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