Node.js 使用ECONREFUSSED本地连接到发电机B时出现故障
我试图将表单提交保存到DynamoDB表,但是,在本地连接时遇到问题。目前我正在本地运行DynamoDB,但稍后我想将其移回一个可以从Elastic Beanstalk访问的普通DDB实例 我已经下载并解压缩了Node.js 使用ECONREFUSSED本地连接到发电机B时出现故障,node.js,amazon-web-services,amazon-dynamodb,Node.js,Amazon Web Services,Amazon Dynamodb,我试图将表单提交保存到DynamoDB表,但是,在本地连接时遇到问题。目前我正在本地运行DynamoDB,但稍后我想将其移回一个可以从Elastic Beanstalk访问的普通DDB实例 我已经下载并解压缩了dynamodb local到一个目录中,并运行了java-Djava.library.path=./DynamoDBLocal_lib-jar DynamoDBLocal.jar-sharedDb 命令,确保我位于适当的目录中。当我运行命令时,我得到以下信息: Initializ
dynamodb local
到一个目录中,并运行了java-Djava.library.path=./DynamoDBLocal_lib-jar DynamoDBLocal.jar-sharedDb
命令,确保我位于适当的目录中。当我运行命令时,我得到以下信息:
Initializing DynamoDB Local with the following configuration:
Port: 8000
InMemory: false
DbPath: null
SharedDb: true
shouldDelayTransientStatuses: false
CorsParams: *
此时,我试图在app.js
中向我的POST端点提交表单,但在运行DynamoDB local的终端中,我遇到了这个重复错误:
Jan 12, 2019 1:24:25 PM com.almworks.sqlite4java.Internal log
WARNING: [sqlite] cannot open DB[1]:
com.almworks.sqlite4java.SQLiteException: [-91] cannot load library: java.lang.UnsatisfiedLinkError: C:\cygwin64\home\Administrator\dynamodb_local_latest\DynamoDBLocal_lib\sqlite4java-win32-x64.dll: Access is denied
Jan 12, 2019 1:24:25 PM com.almworks.sqlite4java.Internal log
SEVERE: [sqlite] SQLiteQueue[shared-local-instance.db]: error running job queue
com.almworks.sqlite4java.SQLiteException: [-91] cannot load library: java.lang.UnsatisfiedLinkError: C:\cygwin64\home\Administrator\dynamodb_local_latest\DynamoDBLocal_lib\sqlite4java-win32-x64.dll: Access is denied
at com.almworks.sqlite4java.SQLite.loadLibrary(SQLite.java:97)
at com.almworks.sqlite4java.SQLiteConnection.open0(SQLiteConnection.java:1441)
at com.almworks.sqlite4java.SQLiteConnection.open(SQLiteConnection.java:282)
at com.almworks.sqlite4java.SQLiteConnection.open(SQLiteConnection.java:293)
at com.almworks.sqlite4java.SQLiteQueue.openConnection(SQLiteQueue.java:464)
at com.almworks.sqlite4java.SQLiteQueue.queueFunction(SQLiteQueue.java:641)
at com.almworks.sqlite4java.SQLiteQueue.runQueue(SQLiteQueue.java:623)
at com.almworks.sqlite4java.SQLiteQueue.access$000(SQLiteQueue.java:77)
at com.almworks.sqlite4java.SQLiteQueue$1.run(SQLiteQueue.java:205)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.UnsatisfiedLinkError: C:\cygwin64\home\Administrator\dynamodb_local_latest\DynamoDBLocal_lib\sqlite4java-win32-x64.dll: Access is denied
at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
at java.base/java.lang.ClassLoader$NativeLibrary.load(Unknown Source)
at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(Unknown Source)
at java.base/java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.base/java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.base/java.lang.Runtime.load0(Unknown Source)
at java.base/java.lang.System.load(Unknown Source)
at com.almworks.sqlite4java.Internal.tryLoadFromPath(Internal.java:340)
at com.almworks.sqlite4java.Internal.loadLibraryX(Internal.java:117)
at com.almworks.sqlite4java.SQLite.loadLibrary(SQLite.java:95)
... 9 more
在运行节点工作者集群的终端中,我从每个工作者(8)获得以下错误输出,然后是DDB错误:
Failed to create table in DB.
{ Error: connect ECONNREFUSED 127.0.0.1:8000
at Object.exports._errnoException (util.js:1022:11)
at exports._exceptionWithHostPort (util.js:1045:20)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1146:14)
message: 'connect ECONNREFUSED 127.0.0.1:8000',
code: 'NetworkingError',
errno: 'ECONNREFUSED',
syscall: 'connect',
address: '127.0.0.1',
port: 8000,
region: 'us-west-2',
hostname: 'localhost',
retryable: true,
time: 2019-01-12T20:31:00.742Z }
DDB Error: NetworkingError: connect ECONNREFUSED 127.0.0.1:8000
我保证我会完成的。下面是我创建DDB表的代码(我将const DDB=new AWS.DynamoDB()
作为app.js
中的参数传递):
我不知道我哪里做错了。然而,我所有的验证和端点都可以工作,当需要创建一个表时,我的代码让我在错误中跌跌撞撞。我也有一种感觉,我可能需要稍微调整一下我的options.config
文件,但我不确定如何格式化它。提前感谢您的帮助!我试图彻底解决我的问题,但请告诉我是否可以扩展其他内容。而不是使用您的计算机IP。它会起作用的。
示例:您是否尝试过仅使用AWS CLI进行连接?只是为了确保dynamodb local正确运行,并从混合中删除SDK。感谢您的建议。我试图列出我的表,但它抛出了我在上面发布的错误(与SQLite相关的Git Bash终端错误)。似乎将问题缩小到无法执行
DynamoDBLocal_lib
目录中的任何内容,但这只是我的新假设。仍然得到errcondensed
,NetworkingError
。我希望保留SDK,因为我正在将它移回DynamoDB,以便从Elastic Beanstalk访问。如果这是一个实际的问题,那么我不想承诺使用本地版本(制作脚本?)。还在学习很多AWS。@Kirk我在GitLab CI上运行时也会遇到同样的错误,本地运行非常好。我正在使用dynamodb-local
版本0.0.25
。我已经用child.stdout.on('data',data=>console.log(data.toString())向子进程添加了一个侦听器
和child.stderr.on('data',data=>console.error('error!',data.toString())
但它似乎只打印配置详细信息…你找到解决方案了吗?这解决了我的问题,但是我应该如何不必在每次网络连接更改时更改配置?我是Docker的新手,所以我很可能错过了什么。。。
const AWS = require('aws-sdk');
function createDDBTable(ddb, tableName) {
// console.log('ddb:\n',ddb);
const tableParams = {
AttributeDefinitions: [
{
AttributeName: 'email',
AttributeType: 'S'
},
{
AttributeName: 'id',
AttributeType: 'S'
}
],
KeySchema: [
{
AttributeName: 'email',
KeyType: 'HASH'
},
{
AttributeName: 'id',
KeyType: 'RANGE'
}
],
ProvisionedThroughput: {
ReadCapacityUnits: 8,
WriteCapacityUnits: 8
},
TableName: tableName,
StreamSpecification: {
StreamEnabled: false
}
};
ddb.createTable(tableParams, (err, data) => {
if(err) console.error('Failed to create table in DB.\n', err);
else console.log('Success creating table!', data);
})
}
module.exports = createDDBTable;